AMS-QQ-A-250 REV. A中文翻译

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ACC-AAM25中文资料

GWACC CS-2504 09/01/06Page 1 of 4GWACCAudio Command CenterVoice Evacuation Control Panelg2504ph1.jpgGWACC CS-2504 09/01/06Page 2 of 4Module FeaturesACC-AAM25•25 watt, 25 V RMS audio amplifier module.•Field-programmable for systemexpansion to 50 watts (providing dual 25-watt speaker circuits) or as abackup to the primary 25-watt amplifier where required.•Provides single Class A or Class B speaker circuit.•Utilizes plug-in-style terminal blocks for ease of service and maintenance.•Fully supervised and power-limited.•Diagnostic LEDs include: yellow “trouble” LED (cable fault, 70 V RMS fault, amp fault) and green “amp functional” LED.FC-XRM70•Converts 25 V RMS audio outputs to 70.7V RMS for retrofit applications.•Plugs directly on ACC-AAM25module(s), allowing independent conversion to 70.7 V RMS .FC-LPS•Provides local digital message playback for user review of field-recorded custom messages.SpecificationsElectrical specificationsCommand input circuits (CMD1and CMD2):Trigger input voltage 10.5 — 29 VDC.NOTE: When programmed for reverse-polarity activation.Trouble contact rating: 2.0 A at 30VDC (resistive), 0.6 A @ 125 VAC (resistive).Auxiliary power output: Specific application power 24 V, 35 mA.Primary (AC) power: 1.6 A maximum @ 120 VAC, 50/60 Hz.Secondary power (battery)charging circuit:• Supports lead-acid batteries only.• Float-charge voltage: 27.6 V.• Maximum charge current: 800 mA.• Maximum battery charging capacity:18 AH.Cabinet dimensionsDoor: 26.174" (66.482 cm) high x 15.780" (40.081 cm) wide x 1.125"(2.858 cm) deep. Backbox: 26.0"(66.040 cm) high x 15.5" (39.370 cm)wide x 4.75" (12.065 cm) deep, depth includes door.Standards and CodesThe GWACC complies with thefollowing standards: NFPA 72 National Fire Alarm Code; NFPA 101 Life Safety Code; UL 864 Standard for Control Units for Fire Alarm Systems; and UL 1711 Standard for Amplifiers for Fire Alarm Systems.1.Power On (green).2.System Trouble (yellow).3.Message Generator Trouble (yellow).4.Tone Generator Trouble (yellow).5.Microphone Trouble (yellow).6.Record/Playback (green).7.Zone 1 (green = Active, yellow = Manual Deactivation).8.Zone 2 (green = Active, yellow = Manual Deactivation).Other System LEDs: Battery Trouble, Charger Trouble, Ground Fault,Speaker Circuit Trouble, and Amplifier Supervisory.Ordering InformationGWACC25 watt, 25 V RMS , emergency Voice Evacuation Control Panel (VECP) with integral commercial microphone, digital message generator, and single-/dual-channel Class A or Class B speaker circuit.ACC-AAM25Optional 25 watt, 25 V RMS Audio Amplifier Module with single Class A or Class B speaker circuit.FC-XRM70Optional 70.7 V RMS Converter Module (one required per amplifier, consult factory for availability).FC-RM Optional Remote Microphone, includes backbox (only one FC-RM per system).FC-LPS Optional Local Playback Speaker. BAT-1270Battery, 12 volt, 7.0 AH (two required). BAT-12120Battery, 12 volt, 12.0 AH (two required). BAT-12180Battery, 12 volt, 18.0 AH (two required).Controls and IndicatorsGWACC CS-2504 09/01/06Page 3 of 4Application ExamplesThe GWACC is a voice evacuation control panel which can be used, with a variety of FACPs, to provide emergency audio messages. Two typical application examples follow.One Speaker CircuitSingle output zone, single input circuit (see Figure 1). A very basic application consists of one GWACC with one amplifier and a single speaker circuit. This configuration is suitable for small facilities requiring no more than 25 watts of output power. A single fire evacuation message will be generated during an alarm condition from the host FACP , or can be manually generated with a message push-button.In this application example, the NAC from the host FACP is connected to CMD1. The CMD1 “out” terminals are then terminated with an end-of-line resistor for the FACP’s Style Y NAC, or the terminals are wired back to the host FACP for a Style Z NAC. S3 DIP switches “1”, “2”, and “3” are set to OFF; this selection sends a 60-second message to the speaker circuit when the CMD1 input is activated. The S5 DIP switch “5” is set to OFF;this selection activates the CMD1 input by a reverse-polarity condition. CMD3, CMD4, and CMD5 inputs require end-of-line resistors.In this application example, the system may also be manually activated from the keypad. Press the Building Speakers push-button, then pressthe Fire Message push-button. Alternately, use the microphone to make an announcement.Keypad ExampleGamewell-FCI 12 Clintonville Road Northford, CT 06472Phone: 203-484-7161Fax: A Honeywell Company © 2006 Gamewell-FCITwo Speaker CircuitsDual output zone, dual input circuit — tone/voice message (see Figure 2). This application example consists of one GWACC with two speaker circuits and requires the installation of a second amplifier. This configuration is suitable for small facilities requiring no more than 50 watts of output power and a 60-second fire evacuation message.In this application example, the addressable FACP directs tone or voice messages to either of the speaker circuits via the control modules con-nected to the CMD1 and CMD2 inputs. S3 DIP switches “1”, “2”, and “3” are set to OFF; this selection configures CMD1/CMD2 to direct the Fire Message to the Auditorium Speakers or Classroom Speakers. The S5 DIP switches “5” and “6” are set to ON; these contact closures activate CMD1 (switch “5”) and CMD2 (switch “6”) inputs.In this application example, the system may also be manually activated from the keypad. Press the Auditorium Speakers and/or Classroom Speakers push-button(s), then press the Fire Message push-button. Alternately, use the microphone to make an announcement. To manually deactivate a speaker circuit, press the activated (illuminated) output zone push-button.。

MIL-A-8625F 阳极氧化中文版

MIL-A-8625F1998年4月25日美国军事标准铝和铝合金的阳极氧化膜此标准由由美国国防部所有部门和科室批准使用1.范围1.1范围本标准包括非建筑用途的铝和铝合金的6类和2级电解生成的阳极氧化膜的要求（见6.1）。

1.2分类本标准所列阳极氧化膜的类别和级别如下：1.2.1分类Ⅰ类- 铬酸阳极氧化，在铬酸槽生成的常规氧化膜（见3.4.1）ⅠB类- 铬酸阳极氧化，低电压工艺，22±2V（见3.4.1）ⅠC类- 非铬酸阳极氧化，应用非铬酸的配方生成的Ⅰ和ⅠB类氧化膜（见3.4.1和6.1.2）Ⅱ类- 硫酸阳极氧化，在硫酸槽生成的常规氧化膜（见3.4.2）ⅡB类- 硫酸阳极氧化薄膜，应用非铬酸的配方生成的Ⅰ和ⅠB类氧化膜（见3.4.1和6.1. 2）Ⅲ类- 硬质阳极氧化膜（见3.4.3）1.2.2级别1级- 不染色（见3.5）2级- 染色（见3.6）2.适用文件2.1政府文件2.1.1规范和标准下面的规范和标准构成本标准的组成部分。

（此处有删节）规范军事规范MIL-P-23377 耐化学和溶剂腐蚀的环氧聚酰胺涂层，MIL-C-81706 铝和铝合金的化学转化膜MIL-P-85582 水性环氧树脂涂层联邦规范QQ-A-250/4 2024铝合金的板和薄板标准联邦标准FED-STD-141 油漆，清漆，硝基漆和相关材料：取样和测试方法。

FED-STD-151 金属：测试方法军事标准MIL-STD-105 取样程序和质量检查表2.2非政府出版物下面的规范和标准构成本标准的组成部分。

（此处有删节）美国试验和材料学会(ASTM)ASTM B 117 盐雾试验方法ANSI/ASTM B 137 铝和铝合金的阳极氧化膜的重量测试ASTM B 224 利用涡流仪测试铝氧化膜厚度，以及其它非磁性材料上的非导电层的厚度 ASTM D 822 测定油漆，清漆，硝基漆和其它产品的曝光和曝水仪（碳-电弧型）的标准使用方法ASTM D 2244 不透明材料色差的仪器测试ASTM G 23 有水和无水的非金属材料曝光测试的曝光仪（碳-电弧型）的标准使用方法 ASTM G 26 有水和无水的非金属材料曝光测试的曝光仪（氙-电弧型）的标准使用方法2.3优先程序在本标准和所引用的参考文件有矛盾时，本标准具有优先权，但是本标准不能超越现行的相关法律和法规。

美国标准81659与GJB177A的主要区别

美国标准81659与GJB177A的主要区别黎世山【摘要】SAE AS81659A《压接接触件矩形电连接器通用规范》规定了两个系列压接可拆卸接触件矩形电连接器的全部要求,它包括单个、两个、三个、四个绝缘安装板外壳结构连接器.它是美国国防部根据其军民通用的需求,将MIL-C-81659B中的内容全部转换而得.GJB 177A-1999也是如此,但两者在内容上存在较大区别.本文将两者的区别进行详细介绍,以期为修订国家军用标准提供前期的参考,同时也为我国标准实现军民通用化提供借鉴.【期刊名称】《机电元件》【年(卷),期】2018(038)001【总页数】7页(P52-58)【关键词】通用规范;连接器;接触件;压接;可拆卸;密封塞【作者】黎世山【作者单位】贵州航天电器股份有限公司,贵州贵阳,550009【正文语种】中文【中图分类】TN7841 引言随着电子元器件技术的飞速发展，连接器形成了多品种、小批量的生产格局，从而导致其生产成本居高不下，加之军用与民用之间的界限日趋不明显。

为此，世界上部分发达国家开始着手推行军民通用化工作，美国将军用标准转换成民用航空航天标准起到了先行典范的积极作用。

为此，美国国防部于2004年6月发布了SAE AS81659代替原标准MIL-C-81659B(1976年8月发布)，后来又于2012年1月发布了SAE AS81659A《压接接触件矩形电连接器通用规范》(以下简称AS81659A)代替SAE AS81659。

该标准修订时新增内容数量不多，主要有“鉴定缺陷”、“缺陷”、“重要缺陷”、“次要缺陷”等术语，但更改内容较多。

该标准对应我国国军标GJB 177A-1999《压接接触件矩形电连接器总规范》(以下简称GJB 177A)。

GJB 177A自1999年发布实施以来，在我国军用压接接触件矩形电连接器研制和生产中得到了广泛应用，为提高军用装备的质量保证发挥了重要作用。

但GJB 177A与AS81659A及MIL-C-81659B之间存在较大差别，主要是试验标准MIL-STD-1344标准改成EIA-364系列试验标准，由于受篇幅限制，本文仅对标准的性能要求、质量保证规定、试验方法、说明事项、外壳和密封尺寸等的不同之处进行阐述。

QQ-A-250-11F

QQ-A-250/11F August 3 1982 SUPERSEDINGQQ-A-250/11EAugust 27, 1971 FEDERAL SPECIFICATION SHEETALUMINUM ALLOY 6061, PLATE AND SHEETThis specification is approved by the Commissioner, FederalSupply Service, General Services Administration, for the useof all Federal agencies.The complete requirements for procuring aluminum alloy 6061 plate and sheet described herein shall consist of this document and the latest issueof QQ-A-250/GEN (see 2.1).1. SCOPE AND CLASSIFICATION1.1 Scope. This specification covers the specific requirements for aluminum alloy 6061 plate and sheet.1.2 Classification.1.2.1 Tempers. The plate and sheet shall be classified as O, T4, T6,T42, T62, T451, T651, or F temper, as specified (see 6.2).2. APPLICABLE DOCUMENTS2.1 Government publications. The issues of the following documents, in effect on date of invitation for bids or solicitation for offers, form a part of this specification to the extent specified herein.Federal SpecificationsQQ-A-250/GEN - Aluminum and Aluminum Alloy Plate andSheet; General Specification for.(Activities outside the Federal Government may obtain copies of Federal specifications, standards, and commercial item descriptions, as outlined under General Information in the Index of Federal Specifications, Standards, and Commercial Item Descriptions. The Index, which includes cumulative bimonthly supplements as issued, is for sale on a subscription basis by the Superintendent of Documents, U.S. Government Printing Office, Washington, DC 20402.)(Single copies of this specification, and other Federal specifications and commercial item descriptions required by activities outside the Federal Government for bidding purposes are available without charge from General services.)FSC 9535QQ-A-250/11FAdministration Business Service Centers in Boston, MA; New York, NY; Philadelphia, PA; Washington, DC; Atlanta, GA; Chicago, IL; Kansas City, MO; Fort Worth, TX; Houston, TX; Denver, CO; San Francisco, CA; Los Angeles, CA; and Seattle, WA.(Federal Government activities may obtain copies of Federal standardization documents and the Index of Federal Specifications, Standards and Commercial Item Descriptions from established distribution points intheir agencies.)3. REQUIREMENTS3.1 Chemical composition. The chemical composition shall conform to the requirements specified in Table I.TABLE I. Chemical composition[1]ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ³ PercentÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄElement ³ Minimum ³ MaximumÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄMagnesium ³ 0.80 ³ 1.20Silicon ³ 0.40 ³ 0.80Copper ³ 0.15 ³ 0.40Chromium ³ 0.04 ³ 0.35Iron ³ - ³ 0.70Titanium ³ - ³ 0.15Manganese ³ - ³ 0.15Zinc ³ - ³ 0.25Other elements, each ³ - ³ 0.05Other elements, total ³ - ³ 0.15Aluminum ³ RemainderÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ[1] Analysis shall regularly be made only for the elementsspecifically mentioned in the Table. If, however, thepresence of other elements is indicated in the course ofroutine analysis, further analysis shall be made todetermine conformance to the limits specified for otherelements.3.2 Mechanical properties.3.2.1 Mechanical properties of material as supplied. The mechanical properties perpendicular to the direction of final rolling, except for material less than 9 inches in width, shall conform to the requirements of Table II for the temper specified. For material less than 9 inches in width, the mechanical properties parallel to the direction of final rolling shall conform to the requirements of Table II for temper specified.QQ-A-250/11FTABLE II. Mechanical propertiesÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄÄÄ ³ ³ ³ Yield strength at ³ Elongation ³ ³ Tensile ³ 0.2 percent offset ³ in 2 in. Temper ³ Thickness ³ strength ³ or at extension ³ or 4 times ³ inches ³ ³ indicated ³ D[1];[2] ³ ³ ÃÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄÄÄ´³ ³ ³ ³ Extension ³³ ³ minimum ³minimum ³under load ³³ ³ ksi ³ ksi ³inch/inch ³ÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄ O ³ 0.006 to 0.007, incl.³ 22.0[3] ³ 12.0[3]³ 0.0032 ³ 10³ over .007 to .009, incl.³ 22.0[3] ³ 12.0[3]³ .0032 ³ 12³ over .009 to .020, incl.³ 22.0[3] ³ 12.0[3]³ .0032 ³ 14³ over .020 to .128, incl.³ 22.0[3] ³ 12.0[3]³ .0032 ³ 16³ over .128 to .499, incl.³ 22.0[3] ³ 12.0[3]³ .0032 ³ 18³ .500 to 1.00, incl. ³ 22.0[3] ³ - ³ - ³ 18³ over 1.00 to 3.00, incl. ³ 22.0[3] ³ - ³ - ³ 16ÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄ T4 ³ 0.006 to 0.007, incl.³ 30.0 ³ 16.0 ³ 0.0036 ³ 10³ over .007 to .009, incl.³ 30.0 ³ 16.0 ³ .0036 ³ 12³ over .009 to .020, incl.³ 30.0 ³ 16.0 ³ .0036 ³ 14³ over .020 to .249, incl.³ 30.0 ³ 16.0 ³ .0036 ³ 16ÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄT42[4] ³ 0.006 to 0.007, incl.³ 30.0 ³ 14.0 ³ 0.0034 ³ 10³ over .007 to .009, incl.³ 30.0 ³ 14.0 ³ .0034 ³ 12³ over .009 to .020, incl.³ 30.0 ³ 14.0 ³ .0034 ³ 14³ over .020 to .249, incl.³ 30.0 ³ 14.0 ³ .0034 ³ 16³ .250 to 1.00, incl. ³ 30.0 ³ 14.0 ³ .0034 ³ 18³ over 1.000 to 3.000, incl.³ 30.0 ³ 14.0 ³ .0034 ³ 16ÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄT451[6]³ 0.250 to 1.00 incl. ³ 30.0 ³ 16.0 ³ 0.0036 ³ 18³ over 1.000 to 3.000, incl. ³ 30.0 ³ 16.0 ³ .0036 ³ 16ÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄT6 and ³ 0.006 to 0.007, incl.³ 42.0 ³ 35.0 ³ 0.0055 ³ 4T62[4] ³ over .007 to .009, incl.³ 42.0 ³ 35.0 ³ .0055 ³ 6³ over .009 to .020, incl.³ 42.0 ³ 35.0 ³ .0055 ³ 8³ over .020 to .249, incl.³ 42.0 ³ 35.0 ³ .0055 ³ 10ÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄT651[6]³ 0.250 to 0.499, incl.³ 42.0 ³ 35.0 ³ 0.0055 ³ 10and ³ 0.500 to 1.000, incl.³ 42.0 ³ 35.0 ³ .0055 ³ 9T62[4] ³ over 1.000 to 2.000, incl.³ 42.0 ³ 35.0 ³ .0055 ³ 8³ over 2.000 to 3.000, incl.³ 42.0 ³ 35.0 ³ .0055 ³ 6³ over 3.000 to 4.000, incl.³ 42.0 ³ 35.0 ³ .0055 ³ 6ÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄT651 ³ over 4.000 to 6.000, incl ³ 40.0 ³ 35.0 ³ .0055 ³ 6³ ³ ³ ³ ³F ³ All ³ [5] ³ [5] ³ [5] ³ [5]ÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄQQ-A-250/11F[1] Specimen diameter.[2] Not required for material 1/2 inch or less width.[3] Maximum.[4] Material in the T42 or T62 temper is not available from the materialsproducers.[5] No requirements.[6] Tempers T451 and T651 are available in plate only.3.2.2 Mechanical properties after heat treatment. In addition to conforming to the requirements of 3.2.1, material in the tempers identifiedin the following paragraphs shall, after having been heat-treated to other tempers also identified therein, have properties conforming to thosespecified in Table II, as applicable.3.2.2.1 Material in the annealed (O) and as-fabricated (F) tempers. Material in the O or F tempers without the subsequent imposition of cold working or forming operations shall, after proper solution heat treatment and natural aging, develop the properties specified in Table II for the T42 temper. When specified (see 6.2), material in the O and F tempers, without the subsequent imposition of cold working or forming operations, shall,after proper solution treatment and artificial aging, develop the properties specified in table II for the T62 temper.3.2.2.2 Material in the T4, T6, T451 and T651 tempers. When specified (see 6.2), material in the T4, T6, T451 and T651 tempers shall, without the subsequent imposition of cold working or forming operations, and after proper solution heat treatment and natural aging, develop the properties specifiedin table II for the T42 temper.3.2.2.3 Material in the T4 and T451 tempers. When specified (see 6.2), material in the T4 and T451 tempers shall, after proper artificial aging, develop the properties specified in Table II for the T6 and T651 tempers, respectively.3.2.2.4 Material in the T42 temper. When specified (see 6.2), material in the T42 temper shall, after proper artificial aging, develop theproperties specified in Table II for the T62 temper.QQ-A-250/11F 3.2.3 Bend test. Bend test specimens taken from the material shall be capable of withstanding, without cracking, the bend test specified inQQ-A-250/GEN. The values for bend factors N are given in Table III.TABLE III. Bend factor N valuesÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ³ TempersÃÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄÄÄÄÄÄThickness (inch) ³ O ³ T4 and T42 ³ T6 and T62ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄ0.006 to 0.020, incl. ³ 0 ³ 2 ³ 2over .020 to .036, incl. ³ 1 ³ 3 ³ 3over .036 to .064, incl. ³ 1 ³ 3 ³ 4over .064 to .128, incl. ³ 1 ³ 3 ³ 5over .128 to .249, incl. ³ 2 ³ 3 ³ 6.250 to .499, incl. ³ 3 ³ 4 ³ 7ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄÄ3.3 Marking. When specified (see 6.2), in addition to the marking required in QQ-A-250/GEN, metal in the T6 and T651 tempers shall beidentified by a lot number marked in at least one location on each piece.4. QUALITY ASSURANCE PROVISIONS (see QQ-A-250/GEN)4.1 Heat treatment.4.1.1 Aging period before testing. Specimens in the T4, T42 and T451 tempers will not be required to be tested within 4 days after completion of the solution heat treatment. If, within this period, the manufacturer elects to test specimens, which thereupon fail to meet the requirements, he can discard these initial test results and test additional specimens selected after four days of aging. These specimens shall be selected from the same location in the production lot or sample as those tested previously.4.2 Mechanical test after heat treatment.4.2.1 Number of tests after heat treatment. From material in the annealed (O) and as-fabricated (F) tempers, an additional number of specimens, equal to those required by QQ-A-250/GEN, shall be taken and tested after solution heat treatment to determine compliance with 3.2.2.5. PREPARATION FOR DELIVERY (see QQ-A-250/GEN)6. NOTESQQ-A-250/11F6.1 Intended use. Alloy 6061 plate and sheet are intended for use where good strength and workability are required. For airframe applications alloy 6061 is considered an inherently corrosion resistant alloy. Welding of alloy 6061 may require special precautions to avoid unsatisfactory properties in weld and heat-affected zones of welded joints. Welding of alloy 6061 is not acceptable to NAVFAC or NAVSEA as a method of joining.6.2 Ordering data. Purchasers should select the preferred options permitted herein and include the following information in precurement documents:(a) Title, number, and date of this specification sheet(b) Form, quantity and temper required (see 1.2.1)(c) Dimensions Required(d) Mechanical properties and dimensional tolerance requirementsfor sizes not specifically covered(e) When lot number identification is required (see 3.3)(f) Specifications of properties required of material in tempers other than that to be supplied(g) Special end use requirements(h) Selection of applicable levels of preservation/packaging andpacking (see QQ-A-250/GEN)6.3 International standardization agreement. Certain provisions of this specification are the subject of international standardization agreementABC-NAVY-STD-44. When amendment, revision, or cancellation of this specification is proposed, which affects or violates the international agreement concerned, the preparing activity will inform GSA so that appropriate reconciliation action may be taken through international standardization channels including departmental standardization offices, if required.6.4 Mechanical properties after heat treatment. Mechanical properties of producer-supplied material are certified for the temper of material supplied. The producer's "capability" demonstration is not evidence that user-treated material conforms to property requirements of a given temper. Frequently, user-heat-treated material may develop a lower level of properties, especially if any cold, warm, or hot work is introduced prior to heat treatment. The user should be held responsible for demonstrating the acceptability of his processing for the end use.QQ-A-250/11F MILITARY INTERESTS: CIVIL AGENCY COORDINATING ACTIVITIES: GSA - FSSCustodians NASA - MSFNASA - JFKArmy - MRAir Force - 20 PREPARING ACTIVITYReview activities Navy - ASArmy - AR, ER, MINavy - EC, OS, YD DOD Project 9535 - 0262DLA - ISUser activitiesArmy - MENavy - NC。

SAE AMS-C-5541A-2003 铝和铝合金的化学转化膜

SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising therefrom, is the sole responsibility of the user.”SAE reviews each technical report at least every five years at which time it may be reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions.Copyright © 2003 SAE InternationalAll rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying,recording, or otherwise, without the prior written permission of SAE.TO PLACE A DOCUMENT ORDER:Tel: 877-606-7323 (inside USA and Canada)Tel: 724-776-4970 (outside USA)Chemical Conversion Coatings on Aluminum and Aluminum AlloysAREA MFFP CANCELLATION NOTICEThis specification has been declared “CANCELLED” by the Aerospace Materials Division, SAE, as of July, 2003, and has been superseded by MIL-C-5541. The requirements of the latest issue of MIL-C-5541 shall be fulfilled whenever reference is made to the cancelled AMS-C-5541. By this action, this document will remain listed in the Numerical Section of the index of Aerospace Materials Specifications noting that it is superseded by MIL-C-5541. Cancelled specifications are available from SAE upon request.AEROSPACEMATERIALSPECIFICATION AMS-C-5541A IssuedJUN 1999Cancelled JUL 2003Superseding AMS-C-5541--``,,``,`````,```,,,`,```,,,``-`-`,,`,,`,`,,`---NOTICEThis document has been taken directly from U.S. Military Specification MIL-C-5541E and contains only minor editorial and format changes required to bring it into conformance with the publishing requirements of SAE technical standards. The initial release of this document is intended to replace MIL-C-5541E. Any part numbers established by the original specification remain unchanged.The original Military Specification was adopted as an SAE standard under the provisions of the SAE Technical Standards Board (TSB) Rules and Regulations (TSB 001) pertaining to accelerated adoption of government specifications and standards. TSB rules provide for (a) the publication of portions of --``,,``,`````,```,,,`,```,,,``-`-`,,`,,`,`,,`---unrevised government specifications and standards without consensus voting at the SAE Committee level, and (b) the use of the existing government specification or standard format.Under Department of Defense policies and procedures, any qualification requirements and associated qualified products lists are mandatory for DOD contracts. Any requirement relating to qualified products lists (QPL’s) has not been adopted by SAE and is not part of this SAE technical document.1.SCOPE:1.1Scope:This specification covers the requirements for two classes of chemical conversion coatings formed by the reaction of chemical conversion materials and the surfaces of aluminum and aluminum alloys.This specification is intended specifically to provide components of military weapon systems with maximum corrosion resistance. The coating also provides a surface having better paint adhesion than uncoated aluminum. It is not intended as a general purpose coating for commercial anddecorative applications, (see 6.1).1.2Classification:The chemical conversion coatings shall be of the following classes, as specified (see 6.2).1.2.1Classes:Class 1 A - For maximum protection against corrosion, for surfaces to be painted or left unpainted, (see 6.1.1).Class 3 - For protection against corrosion where lower electrical resistance is required, (see 6.1.2).2.APPLICABLE DOCUMENTS:The following publications, of the issue in effect on date of invitation for bids or request for proposal, form a part of this specification to the extent specified herein.2.1U.S. Government Publications:Available from DODSSP, Subscription Services Desk, Building 4D, 700 Robbins Avenue,Philadelphia, PA 19111-5094.QQ-A-250/4Aluminum Alloy 2024, Plate and SheetQQ-A-250/11Aluminum Alloy 6061, Plate and SheetMIL-P-23377Primer Coating, Epoxy Polyamide, Chemical and Solvent ResistantMIL-C-81706Chemical Conversion Materials For Coating Aluminum and Aluminum AlloysMIL-P-85582Primer Coatings: Epoxy, WaterborneFED-STD-141Paint, Varnish, Lacquer and Related Materials, Methods of Inspection, Sampling and TestingMIL-STD-105Sampling Procedures and Tables for Inspection by Attributes2.2ASTM Publications:Available from ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959.ASTM B 117Salt Spray (Fog) Testing2.3Order of precedence:In the event of a conflict between the text of this document and the references cited herein, the text of this document takes precedence. Nothing in this document, however, supersedes applicable lawsand regulations unless a specific exemption has been obtained.3.REQUIREMENTS:3.1Chemical conversion materials:The materials used to produce a chemical conversion coating shall be approved for the selected class, form and application method in accordance with the qualification requirements ofMIL-C-81706 and been accepted for listing on the applicable Qualified Products List (see 6.3).Replenishing chemicals, such as fluorides, added to a bath to maintain its efficiency, shall in no way degrade the performance of the coating being applied.3.2Cleaning:Prior to coating, the base metal shall be mechanically and/or chemically cleaned such that a water break-free surface is obtained after rinsing (see 6.4). Abrasives containing iron such as steel wool, iron oxide, rouge or steel wire are prohibited for all cleaning operations as particles from them may become embedded in the metal and accelerate corrosion of the aluminum and aluminum alloys.Treated parts which have become soiled shall be cleaned with materials which will remove the soil without damaging the base metal, the part, or the conversion coating. If the coating is damaged, the damaged area shall be recleaned and recoated or the part shall be rejected.3.3Application:Unless an application method is specified, the chemical conversion materials shall be appliednonelectrolytically by spray, brush or immersion after all heat treatments and mechanical operations such as forming, perforating, machining, brazing and welding have been completed. Assemblies containing non-aluminum parts which may be attacked, embrittled, or damaged in any way by the conversion coating process shall not be coated as assemblies unless the non-aluminum parts are suitably masked.--` ` , , ` ` , ` ` ` ` ` , ` ` ` , , , ` , ` ` ` , , , ` ` -` -` , , ` , , ` , ` , , ` ---3.4Rework:Unless otherwise specified by the procuring activity, mechanically damaged areas from which the coating has been removed may be reworked. The damaged areas shall be touched up withMIL-C-81706 material approved on the QPL for the applicable class and method of application. The rework area shall not exceed 5 percent of total item surface area. If the area exceeds 5 percent, specific approval must be obtained from the procuring activity before the area can be reworked.3.5Appearance:The conversion coating shall be as uniform in appearance as practical (see 6.6). It shall becontinuous and free from areas of powdery or loose coating, voids, scratches, flaws and otherdefects or damages which will reduce the serviceability of parts or be detrimental to the protective value and paint bonding characteristics. The size and number of contact marks shall be at aminimum, consistent with good practice. If specified, contact marks shall be touched up withMIL-C-81706 material approved on the QPL for the applicable class and method of application to prevent localized corrosion. Clear (colorless) coating shall only be used when specifically authorized by the procuring activity, (see 6.2 and 6.6).3.6Corrosion resistance properties:At the end of 168 hours exposure to the 5 percent salt spray test specified in 4.5.1, specimen panels (see 4.3.3) treated with the applicable class of coating shall meet all of the following corrosionresistance requirements:a.No more than 5 isolated spots or pits (see 6.7), none larger than 0.031 inches in diameter, perspecimen panel. Areas within 0.25 inches from the edges, identification markings, and holding points during processing or salt spray exposure shall be excluded. Loss of color shall not because for rejection.b.No more than 15 isolated spots or pits, none larger than .031 inches in diameter, on thecombined surface area of all five specimen panels, subjected to the salt spray test.3.7Paint adhesion properties:When the production paint system or the paint system specified in 4.3.3.1.1 is applied to theapplicable specimen panels (see 4.3.3), no intercoat separation shall occur between the paintsystem and the conversion coating or between the conversion coating and the base metal when tested in accordance with 4.5.2, (see 6.10). If the conversion coated parts do not require painting for end use, the paint adhesion test may be omitted if specifically authorized by the procuring activity (see 6.2).--` ` , , ` ` , ` ` ` ` ` , ` ` ` , , , ` , ` ` ` , , , ` ` -` -` , , ` , , ` , ` , , ` ---3.8Electrical contact resistance of Class 3 coatings:If specified (see 6.2), electrical contact resistance testing shall be performed. The test method, frequency of testing, and required resistance values shall be specified by the procuring activity to suit the needs of a particular application.3.9Workmanship:The chemical coatings covered by this specification shall be produced by suitable treatments and processes to give uniformly coated products as specified herein.4.QUALITY ASSURANCE PROVISIONS:4.1Responsibility for inspection:Unless otherwise specified in the contract or purchase order, the contractor is responsible for the performance of all inspection requirements (examinations and tests) as specified herein. Except as otherwise specified in the contract or purchase order, the contractor may use his own or any other facilities suitable for the performance of the inspection requirements specified herein, unlessdisapproved by the Government. The Government reserves the right to perform any of theinspections set forth in the specification where such inspections are deemed necessary to ensure supplies and services conform to prescribed requirements.4.1.1Responsibility for compliance: All items must meet all requirements of Section 3. The inspectionset forth in this specification shall become a part of the contractor’s overall inspection system or quality program. The absence of any inspection requirements in the specification shall not relieve the contractor of the responsibility of ensuring that all products or supplies submitted to theGovernment for acceptance comply with all requirements of the contract. Sampling inspection, as part of manufacturing operations, is an acceptable practice to ascertain conformance torequirements, however, this does not authorize submission of known defective material, eitherindicated or actual, nor does it commit the Government to acceptance of defective material.4.2Classification of inspection:--``,,``,`````,```,,,`,```,,,``-`-`,,`,,`,`,,`---The inspection requirements specified herein are classified as follows:a.Process control inspection (see 4.3).b.Quality conformance inspection (see 4.4).4.3Process control inspection:4.3.1Process control tests and solution analysis: To assure continuous control of the process, testspecimens (see 4.3.3) shall be tested in accordance with Table I (see 4.3.1.1). In addition to the tests in Table I, solution analysis shall be performed on all the processing solutions in theconversion coating line (see 6.9) to verify that the chemical concentrations are within rangesestablished for optimum performance (see 4.3.1.1 and 4.3.2). Process control tests are conducted to determine compliance of the chemical conversion coatings with the requirements of thisspecification and are acceptable as evidence of the properties being obtained with the equipment and procedures employed.Table I. Process control tests.4.3.1.1Frequency of process control testing and solution analysis: Solution analysis shall be performedonce every week. The process control tests specified in Table I shall be conducted on a monthly basis. In addition, the interval between each monthly test shall not exceed 35 days. If production in accordance with this specification is not performed for a period of 35 days or longer, process control tests and solution analysis shall be conducted at the restart of production.4.3.2Solution analysis records: The processor shall maintain a record of the history of each processingbath, showing additions of replenishing chemicals to the bath and the results of all solutionanalyses performed. Upon request of the procuring activity, such records, as well as reports of the test results, shall be made available. These records shall be maintained for not less than one year after completion of the contract or purchase order.--` ` , , ` ` , ` ` ` ` ` , ` ` ` , , , ` , ` ` ` , , , ` ` -` -` , , ` , , ` , ` , , ` ---4.3.3Process control specimen panels: Specimen panels used for process control testing shall be3inches in width, 10 inches in length, with a minimum 0.020 inch nominal thickness. Thespecimen panels shall be processed with the hardware during an actual production run, including all pre- and post-treatment processes such as cleaning and rinsing, except as specified below.Unless otherwise specified in the contract or order (see 6.2), either of the following alloy options for the process control specimen panels may be utilized:Option 1 - A set of specimen panels shall be used for each alloy and temper treated during themonthly process control period.Option 2 - The specimen panels shall be 2024-T3 aluminum alloy panels per QQ-A-250/4 for class 1A coatings and 6061-T6 aluminum alloy panels per QQ-A-250/11 for class 3 coatings. If desired, 2024-T3 panels may be used in lieu of 6061-T6 panels for testing class 3 coatings (see 6.8). When castings are being processed and the cleaning procedures used are detrimental to the wrought --``,,``,`````,```,,,`,```,,,``-`-`,,`,,`,`,,`---specimen panels, the panels shall be cleaned in an appropriate manner (see 3.2) and conversion coated with the castings.4.3.3.1Preparation of paint adhesion specimens: Unless otherwise specified (see 6.2), the paint systemto be used on the specimen panels for adhesion testing (see 4.5.2) shall be that used for theproduction work (applied and cured in the same manner as the production work) or the paintsystem specified in 4.3.3.1.1.4.3.3.1.1Epoxy primer coatings: Specimen panels shall be finished with one coat of a (VOC) compliantepoxy-polyamide primer conforming to either MIL-P-23377 or MIL-P-85582. In either case theprimer shall be applied to a dry film thickness of 0.0006 to 0.0009 inch (0.6 to 0.9 mil) and driedin accordance with the applicable primer specification before testing in accordance with 4.5.2.4.3.4Failure: Failure to conform to any of the process control requirements specified in Table I shallresult in immediate halt of production. The reason for failure shall be determined and corrected before production resumes. All traceable and retrievable work from the time the failed processcontrol specimens were conversion coated to the time when the failure was determined shall be rejected, unless the contractor can demonstrate that the items under review can meet therequirements of this specification. Unless otherwise specified, parts which have been painted or incorporated into an assembly shall not be considered retrievable.4.4Quality conformance (lot acceptance) inspection:4.4.1Lot: A lot shall consist of all conversion coated items of the same class, treated under the sameconditions, and submitted for acceptance at one time. Unless otherwise specified, the lot size shall not exceed the number of parts, articles, items or components resulting from a one day’sproduction (see 6.2).4.4.2Sampling plan and acceptance criteria: Samples for visual examinations shall be selected fromeach lot of treated articles, items, parts or components. Unless otherwise specified in the contract or order (see 6.2), the sampling plan and acceptance criteria shall be as specified in inspection level II of MIL-STD-105 with an AQL of 1.5 percent defective.4.4.3Visual lot examination: Samples selected in accordance with 4.4.2 shall be visually inspected forcompliance with the requirements of 3.5 and 3.9.4.4.4Failure: Failure to conform to any of the quality conformance requirements shall result in rejectionof the represented lot.4.5Test methods:4.5.1Corrosion resistance test: Five specimen panels prepared in accordance with paragraph 4.3.3shall be used for corrosion resistance testing. After the coating application, the specimen panels shall be dried at 60-100°F for 24 hours. The panels shall then be subjected to a 5 percent saltspray test in accordance with ASTM B117 for 168 hours, except that the significant surface shall be inclined 6 degrees from the vertical. After exposure, test pieces shall be cleaned in running water, not warmer than 38°C (100°F), blown with clean, dry unheated air, and visually examined forconformance with paragraph 3.6.4.5.2Wet tape adhesion test: Two specimen panels prepared in accordance with 4.3.3 and 4.3.3.1 shall --``,,``,`````,```,,,`,```,,,``-`-`,,`,,`,`,,`---be tested for wet tape adhesion. The test shall be conducted as described in method 6301 ofFED-STD-141 to determine conformance with paragraph 3.7.5.PACKAGING:5.1The requirements of Section 5 are not applicable.6.NOTES:(This section contains information of a general or explanatory nature that may be helpful, but is not mandatory.)6.1Intended use:6.1.1Class 1A: Class 1A chemical conversion coatings are intended to provide corrosion preventionwhen left unpainted as well as to improve adhesion of paint finish systems on aluminum andaluminum alloys. Coatings of this type may be used, for example, on tanks, tubing, andcomponent structures where paint finishes are not required for the interior surfaces but arerequired for the exterior surfaces.6.1.2Class 3: Class 3 chemical conversion coatings are intended for use as a corrosion preventive filmfor electrical and electronic applications where lower resistant contacts, relative to Class 1Acoatings, and anodic coatings in accordance with MIL-A-8625, are required (see 6.1.2.1). Theprimary difference between a Class 1A and Class 3 coating is thickness, since current passesmore readily through a thinner current resistant barrier (coating). Coating thickness is varied by immersion time, and as a result, the same conversion material can be listed on QPL-81706 for both classes. Because Class 3 coatings are thinner, they are more susceptible to corrosion than Class 1A coatings. If it is required to paint areas surrounding electrical contacts, Class 3 coatings will improve adhesion of paint systems on aluminum and aluminum alloys.6.1.2.1Electrical resistance testing: When under a nominal electrode pressure of 200 psi, Class 3coatings are qualified per MIL-C-81706 to have a resistance no greater than 5,000 microhms per square inch as supplied and 10,000 microhms per square inch after 168 hours of salt sprayexposure. In addition to the coating or coating thickness (see 6.1.2), other variables heavilyinfluence resistance values when using the test method specified in MIL-C-81706 or other similar methods. The following two variables may have a greater effect on electrical resistance values than the conversion coating thickness.6.1.2.1.1Surface roughness of the specimen panel: Panels having rough surfaces will yield lowerresistance values when subjected to a contact electrode pressure due to coating fracture. Thisreasoning can also be applied to the contact electrode.6.1.2.1.2Flatness of the contact electrode: If an electrode with a given surface area is not flat, the actualcontact area will be lower than the theoretical value. Smaller contact area will result in a higherresistance value. The same reasoning can be applied to the specimen panel.6.2Ordering data:Acquisition documents should specify the following:a.Title, number and date of this specification.b.Class of coating (see 1.2.1).c.Method of application, if restricted (see 3.3).d.Clear coatings, if desired (see 3.5).--``,,``,`````,```,,,`,```,,,``-`-`,,`,,`,`,,`---e.Omit the paint adhesion test, if permitted (see 3.7)f.If electrical resistance testing is required for Class 3 coatings, (see 3.8 and 6.1.2).g.When electrical resistance testing is required, specify the required resistance values, frequencyof testing, and test method (see 3.8 and 6.1.2).h.Alloy and temper of the process control specimen panels, if different than that specified in 4.3.3.i.Paint finish system for treated parts, if applicable (see 4.3.3.1)j.Lot size, if different from that specified (see 4.4.1).k.Sampling plan, if different from that specified (see 4.4.2).6.3Interchangeability:The various products approved in accordance with MIL-C-81706 and listed on QPL-81706 willprovide equivalent coatings within each class insofar as performance of the chemical conversion coating is concerned to the provisions of the document, but are not interchangeable from a chemical standpoint; that is, different materials can not be mixed. The materials from one supplier shall not be mixed or used to strengthen an existing solution from another material supplier. As the chemical coating materials are proprietary products, the ingredients, processes, the method of application (spray, brush, or immersion), and the equipment required for application of coating may vary.Coating contractors and military activities should take this into account in acquisition, in the design of parts and the establishment of facilities. Detail drawing of parts requiring treatment in accordance with this specification should specify the Class 1A or 3 and any paint finishing systems required to meet the performance desired. If the coating class is not specified, Class 1A is recommended.6.4Cleaners:Use of a non-etch cleaner is preferred, particularly on wrought alloys. If an etch is used, caution should be taken to prevent pitting or intergranular attack. This is particularly important when using an alkaline etch because the aluminum tends to be more soluble than its alloying elements and existing intermetallics, such as copper, may be further exposed. As a result, alkaline etching should be avoided (particularly when cleaning assembled structures). If an alkaline etch is used, it should always be followed by an acid neutralization step.6.5Abrasion resistance:The abrasion resistance of chemical coatings is relatively low. Coatings are reasonably durable when subjected only to moderate handling, but are readily removed by severe wear or erosion.However, cold forming operations, when performed with care, can generally be performed on treated metals without appreciable damage to the coatings.6.6Visual appearance:--``,,``,`````,```,,,`,```,,,``-`-`,,`,,`,`,,`---The simplest way to evaluate a conversion coating is to observe color, uniformity of appearance, smoothness and adhesion to the base metal (see 3.5). Visual examination is performed to assure that proper cleaning and coating procedures were used such that a coating with sufficient protection exists over the entire part. Materials qualified under MIL-C-81706 produce coatings that range in color from clear to iridescent yellow or brown. It may be possible to develop acceptable color levels for a particular coating system by use of color chips. The following circumstances may exist which relate to color uniformity:6.6 (Continued):a.When several alloys are processed with the same conversion chemical, color may vary fromalloy to alloy.b.Due to the high level of impurities and oxidation on the surfaces of aluminum welds and castings,color may not be as uniform as that obtained by treating wrought alloys.c.Dark spots may result from dripping or rundown of the conversion chemicals when the parts arelifted out of the treatment tank. A small amount of spotting will not result in coating degradation but should be minimized by quickly rinsing the parts after treatment, and use of proper racking --``,,``,`````,```,,,`,```,,,``-`-`,,`,,`,`,,`---techniques.Visual examination will not reveal if the protective value of the coating has been impaired bycontamination or by overheating during drying. If a clear coating is required, inspection difficulties may arise because visual inspection does not reveal the presence of a coating. The existence of a coating can be verified by using a simple spot test specified in ASTM B 449.6.7Determination of a corrosion spot or pit:As a general rule, a corrosion spot or pit usually displays a characteristic tail or line (see 3.6).6.8Specimen panels (2024-T3):Due to high copper content, 2024-T3 aluminum alloy panels are more susceptible to salt sprayfailure than 6061-T6 aluminum alloy panels (see 4.3.3).6.9Chemical analysis of the conversion solution:As a minimum, chemical analysis of the conversion solution should consist of concentration, pH, and temperature evaluations to determine that the bath is within the ranges specified by the chemical manufacturer. It should be noted that many conversion materials do not react sufficiently withaluminum surfaces at low temperatures. Conversion coating parts in an unheated facility (ie. a hangar) during colder periods of the year would not be recommended.6.10Paint adhesion:Coated parts should be allowed to dry in accordance with the chemical manufacturer’srecommendation before they are subsequently painted or adhesion failures may occur. Whencoated parts are stored for extensive periods before painting, they should be cleaned in accordance with 3.2 to reactivate the surface by removing dust particles. Excessively thick coatings may result in paint adhesion problems (blistering) due to higher amounts of soluble material under the paint.6.10.1Paint compatibility: Compatibility problems between conversion coatings and certain ChemicalAgent Resistant Coatings (CARC) have been reported.6.11Temperature effects on corrosion protection:Unpainted conversion coatings will commence losing corrosion resistance properties if exposed to temperatures of 60°C (140°F) or above, during drying, subsequent fabrication, or service. Ingeneral, as temperature and exposure times increase, the corrosion protection of unpaintedconversion coated parts decreases. The reduction is believed to result from the coating dehydrating and the resulting insolubility of the chromates within the coating.6.12This paragraph was deleted as it did not pertain to the converted SAE document.6.13Subject term (key word) listing:AluminumAluminum AlloysChemical Conversion CoatingsChromate Conversion CoatingsPREPARED UNDER THE JURISDICTION OF AMS COMMITTEE “B”--``,,``,`````,```,,,`,```,,,``-`-`,,`,,`,`,,`---。

SAE J404-2000

MIL-A-8625F-2003

NOT MEASUREMENTSENSITIVEMIL-A-8625FAMENDMENT 115 September 2003MILITARY SPECIFICATIONANODIC COATINGS FOR ALUMINUM AND ALUMINUM ALLOYS This amendment forms a part of MIL-A-8625F, dated 10 September 1993, and is approved for use by all Departments and Agencies of the Department of Defense.PAGE 22.1.1, under SPECIFICATIONS, MILITARY: Delete “MIL-C-81706 – Chemical Conversion Materials for Coating Aluminum and Aluminum Alloys.”PAGE 33.3.1.2, line 7: Delete “IA…” and substitute “IB.”PAGE 43.3.1.2: Change paragraph number to “3.3.1.3.” In line 4, delete “IA” and substitute “IB.”PAGE 5Add: “3.4.2.2 Photosensitized (identification) nameplates. When type II anodic coatings are specified for use in photosensitized nameplates, oxalic acid anodizing may be used in lieu of sulfuric acid anodizing. If oxalic acid anodizing is used, the resultant coating shall meet the requirements of this specification for type II anodic coatings. If copy and background color are added to photosensitive nameplates, silver compounds or dyes shall be used. Unprocessed photosensitive aluminum shall be classified as class 1. Nameplates made from photosensitive aluminum shall be classified as class 2.”AMSC N/A 1 of 3 AREA MFFP DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited.PAGE 63.7.1.2c: Delete and substitute:“c. In addition to the requirements in a and b above, types I and IB test specimens that exhibit large areas of gross discoloration (dark grey areas) shall meet the following additional requirement. The total number and per panel number of pits used to verify that the requirements of a and b above are met shall be determined by adding the number of pits found with the unaided eye to the number of pits found in the areas of gross discoloration determined when examined at a magnification of 10X. This requirement does not apply to areas of slight discoloration or fading such as those areas that may result from chromate leaching during salt spray exposure.”PAGE 9TABLE II: Add “2/ III” to column 2, row 3, Applicable type I, IB, IC, II, IIB.Add the following footnote below the table “2/ Type III coatings shall be tested for corrosion resistance only when it is specified that the coating is sealed.”PAGE 104.3.3.2.3: Delete and substitute: “4.3.3.2.3 Test specimens for corrosion and light fastness resistance. Corrosion resistance shall be determined on undyed and sealed production parts or specimen panels (see 4.3.3.2). When light fastness testing is specified (see 6.2), it shallbe performed on dyed and sealed (class 2) production parts or specimen panels (see 4.3.3.2). When specimen panels are used, they shall have a width of not less than 3 inches, a length of not less than 10 inches, and a nominal thickness of not less than 0.032 inch.PAGE 136.1, line 2: Delete “yipvide” and substitute “provide.”6.1.1, line 7: Change “MIL-C-81706” to “MIL-DTL-81706.”PAGE 186.16, lines 2 and 4: Change “silicone” to “silicon.”PAGE 19Delete 6.23 and substitute:“6.23 Subject term (key word) listing.AnodizingChromatesChromic acidPhosphoric acidPotassium dichromateSodium dichromateSulfuric acidCustodians: Preparing activity:Army – MR Navy - ASNavy – AS (Project MFFP-0698) Air Force – 11Review activities:Army – AR, AV, AT, CR, CR4, MINavy – OS, SHAir Force – 70, 71, 99ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿ ³NOT MEASUREMENT³ ³ SENSITIVE ³ ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ MIL-A-8625F10 September 1993 SUPERSEDINGMIL-A-8625E25 April 1988MILITARY SPECIFICATIONANODIC COATINGS, FOR ALUMINUM AND ALUMINUM ALLOYSThis specification is approved for use by all Departments and Agencies of the Department of Defense.1. SCOPE1.1 Scope. This specification covers the requirements for six types and two classes of electrolytically formed anodic coatings on aluminum and aluminum alloys for non-architectural applications (see 6.1).1.2 Classification. Anodic coating Types and Classes covered by this specification are as specified herein (see 6.2 and 6.21):1.2.1 TypesType I - Chromic acid anodizing, conventional coatings producedfrom chromic acid bath, (see 3.4.1)Type IB - Chromic acid anodizing, low voltage process, 22 +/- 2V,(see 3.4.1)Type IC - Non-chromic acid anodizing, for use as a non-chromatealternative for Type I and IB coatings (see 3.4.1 and 6.1.2) Type II - Sulfuric acid anodizing, conventional coatings producedfrom sulfuric acid bath, (see 3.4.2)Type IIB - Thin sulfuric acid anodizing, for use as a non-chromatealternative for Type I and IB coatings (see 3.4.2 and 6.1.2) Type III - Hard Anodic Coatings (see 3.4.3)1.2.2 Classes.Class 1 - Non-dyed (see 3.5.)Class 2 - Dyed (see 3.6.)ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿³Beneficial comments (recommendations, additions, deletions) and any ³³pertinent data which may be of use in improving this document should be ³³addressed to: Systems Engineering and Standardization Department (Code ³³53), Naval Air Engineering Center, Lakehurst, NJ 08733-5100, by using the ³³self-addressed Standardization Document Improvement Proposal (DD Form 1426)³³appearing at the end of this document or by letter. ³ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ AMSC N/A AREA MFFP DISTRIBUTION STATEMENT A: Approved for public release; distribution is unlimited.MIL-A-8625F2. APPLICABLE DOCUMENTS2.1 Government documents.2.1.1 Specifications, and standards. The following specifications and standards form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents shall be those listed in the issue of the Department of Defense Index of Specifications and Standards (DODISS) and supplement thereto, cited in the solicitation.SPECIFICATIONSMILITARYMIL-C-23377 - Primer Coating, Epoxy-Polyamide, Chemical and Solvent ResistantMIL-C-81706 - Chemical Conversion Materials for Coating Aluminumand Aluminum AlloysMIL-P-85582 - Primer Coatings: Epoxy, WaterborneFEDERALQQ-A-250/4 - Aluminum Alloy 2024, Plate and SheetSTANDARDSFEDERALFED-STD-141 - Paint, Varnish, Lacquer, and Related Materials:Method For Sampling and TestingFED-STD-151 - Metals; Test MethodsMILITARYMIL-STD-105 - Sampling Procedures and Tables for Inspectionby Attributes(Unless otherwise indicated, copies of federal and military specifications and standards are available from DODSSP-Customer Service, Standardization Documents Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia, PA 19111-5094.)2.2 Non-Government publications. The following documents form a part of this document to the extent specified herein. Unless otherwise specified, the issues of the documents which are DOD adopted are those listed in the issue of the DODISS cited in the solicitation. Unless otherwise specified, the issues of documents not listed in the DODISS are the issues of the documents cited in the solicitation (see 6.2).AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM)ASTM B 117 - Method of Salt Spray (Fog) TestingANSI/ASTM B 137 - Weight of Coating on Anodically Coated Aluminum,Measurement ofASTM B 244 - Thickness of Anodic Coatings on Aluminum and ofRelated Products, Standard Practice for Operating 2ASTM D 2244 - Color Differences of Opaque Materials,Instrumental Evaluation ofASTM G 23 - Standard Practice for Operating Light ExposureApparatus (Carbon-Arc Type) With and Without Waterfor Exposure of Non-metallic MaterialsASTM G 26 - Operating Light-Exposure Apparatus (Xenon-ArcType) With and Without Water for Exposure ofNon-metallic Materials(Application for copies should be addressed to the American Society forTesting and Materials, 1916 Race Street, Philadelphia, PA 19103.)2.3 Order of precedence. In the event of a conflict between the text ofthis document and the references cited herein, the text of this documenttakes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained.3. REQUIREMENTS3.1 Materials. The materials used shall be such as to produce coatingswhich meet the requirements of this specification.3.1.1 Base metal. The base metal shall be sufficiently free from surface defects, caused by machining, cutting, scratching, polishing, buffing, roughening, bending, stretching, deforming, rolling, sandblasting, vaporblasting, etching, heat treatment condition, alloy chemistry imbalanceand inclusions, that will cause test panels or parts to fail any of the requirements of this specification. The base metal shall be subject to cleaning, etching, anodizing and sealing procedures as necessary to yield coatings meeting all requirements of this specification.3.2 Equipment and processes. The equipment and processes employed shallbe such as to produce coatings which meet the requirements of this specification. Unless otherwise specified in the contract, purchase order or applicable drawing (see 6.2), process operating conditions shall be at the option of the supplier.3.3 General.3.3.1 Anodizing of parts and assemblies.3.3.1.1 Anodizing of parts. Unless otherwise specified in the contract, purchase order or applicable drawing (see 6.2), parts shall be anodized after all heat treatment, machining, welding, forming and perforating have been completed.3.3.1.2 Anodizing of assemblies. Unless otherwise specified in the contract, purchase order or applicable drawing, anodic coatings shall not be appliedto assemblies which will entrap the electrolyte in joints or recesses (components shall be anodized separately prior to assembly). When anodizing of assemblies is authorized by the contract, purchase order or applicabledrawing, the processing method used shall not result in subsequent damage tothe assembly from electrolyte entrapment (Type I or IA coatings shall be used unless another coating Type is specified). Assemblies which containnon-aluminum parts such as steel, brass or organic substances, which would be attacked by pretreatment or anodizing solutions or would prevent uniform3.3.1.2 Anodizing of complex shapes. When anodizing complex shapes which will entrap the electrolyte in recesses, the processing method used shall not result in subsequent damage to the part from electrolyte entrapment (Type I or IA coatings shall be used unless another coating Type is specified).3.3.2 Handling and cleaning. Parts shall be so handled during all pretreatments, anodizing and post treatments that mechanical damage or contamination will be avoided. Parts shall be free of all foreign substances, oxides and soils, such as greases, oil, paint and welding flux. Parts shall have oxide and other interfering films removed by the use of proper cleaning procedures so as to be clean and have water break free surfaces. Abrasives containing iron, such as steel wool, iron oxide rouge and steel wire, which may become embedded in the metal and accelerate corrosion of aluminum and aluminum alloys, are prohibited as a means of mechanical cleaning, prior to anodizing. If special cleaning requirements are required they shall be specified in the contract or order (see 6.2).3.3.3 Reflective surfaces. When specified in the contract or purchase order (see 6.2), parts fabricated to produce a highly reflective surface shall be chemically or electrochemically brightened, prior to anodic coating (see 6.9). 3.3.4 Touch up (mechanical damage and contact marks). Unless otherwise specified (see 6.2), mechanically damaged areas from which the anodic coating has been removed without damage to the part may be touched up using chemical conversion materials approved on QPL-81706 for Class 1A coatings and the applicable method of application. Touch up shall apply only to inadvertent mechanical damage such as scratch marks. For Type III coatings, touch up shall only be allowed in areas which will not be subjected to abrasion (see 6.1.1). The mechanically damaged area(s) shall not exceed 5 percent of total anodized area of the item or touch up shall not be permitted. When specified in the contract or purchase order (see 6.2), contact marks shall be touched up using the above method required for mechanical damage.3.4 Coatings. Conventional anodic coatings as specified in the contract, purchase order or applicable drawings (see 6.2), shall be prepared by any process or operation to produce the specified coating on aluminum and aluminum alloys.3.4.1 Type I, IB and IC coatings. Type I and IB coatings shall be theresult of treating aluminum and aluminum alloys electrolytically in a bath containing chromic acid to produce a uniform anodic coating on the metal surface. Type IC coatings shall be the result of treating aluminum and aluminum alloys electrolytically in a bath containing mineral or mixed mineral/ organic acids (non-chromic acid) to produce a uniform anodic coating on the metal surface. Unless otherwise specified in the contract, purchase order or applicable drawing, Type I coatings shall not be applied to aluminum alloys with a nominal copper content in excess of 5.0 percent; nominal silicon contents in excess of 7.0 percent; or when the total allowable contents of nominal alloying elements exceed 7.5 percent. Heat treatable alloys which are to receive a Type I, IB or IC coating shall be in the required temper obtained by heat treatment, such as -T4, -T6, or T73 prior to anodizing.3.4.1.1 Type IC coatings. Type IC coatings provide a non-chromate alternative to Type I and IB coatings. Unless approved by the procuring activity, substitution of a Type IC coating where Type I or IB is specified shall be prohibited.3.4.2 Type II and IIB coatings. Type II and IIB coatings shall be the result of treating aluminum and aluminum alloys electrolytically in a bath containing sulfuric acid to produce a uniform anodic coating on the metal surface. Heat treatable alloys shall be in the required temper obtained by heat treatment, such as -T4, -T6, or T73, prior to anodizing.3.4.2.1 Type IIB coatings. Type IIB coatings provide a non-chromate alternative to Type I and IB coatings. Unless approved by the procuring activity, substitution of a Type IIB coating where Type I or IB is specified shall be prohibited.3.4.3 Type III coatings. Type III coatings shall be the result of treating aluminum and aluminum alloys electrolytically to produce a uniform anodic coating on the metal surface. Type III coatings shall be prepared by any process operation to produce a heavy dense coating of specified thickness on aluminum alloys (see 3.7.2.1). Unless otherwise specified in the contract, purchase order or applicable drawing, Type III coatings shall not be applied to aluminum alloys with a nominal copper content in excess of 5 percent or a nominal silicon content in excess of 8.0 percent. Alloys with a nominalsilicon content higher than 8.0 percent may be anodized subject to approval of the procuring activity. Heat treatable alloys shall be in a temper obtained by heat treatment, such as -T4, -T6 or T73, prior to anodizing.3.5 Class 1. When class 1 is specified in the contract or purchase order, (see 6.2), the anodic coating shall not be dyed or pigmented. Any natural coloration resulting from anodic treatment with the various alloy compositions shall not be considered coloration. The characteristic color imparted by the sealing process shall also be considered as non-dyed.3.6 Class 2. When class 2 is specified in the contract or purchase order, (see 6.2), the anodic coating shall be uniformly dyed or pigmented by exposure to a solution of a suitable type dye or stain. The color on wrought alloysshall be uniform. Cast alloys may exhibit dye bleed-out or lack of color (or color uniformity) associated with the inherent porosity of the casting. The dyes and pigments used shall not be damaging to the anodic coatings.3.6.1 Dye color. When dyed or pigmented coatings are required, the colorand color uniformity requirements shall be as specified by the contract, purchase order or applicable drawing (see 6.2).3.6.1.1 Casting alloys. Dyed casting alloys may show a slight lack of color uniformity. The degree of non-uniformity that is acceptable shall be established by the procuring activity (see 6.2).3.7 Detail requirements.3.7.1 Types I, IB, IC, II, and IIB coatings.3.7.1.1 Weight of coating. Prior to dyeing or sealing, Type I, IB, IC, II, and IIB coatings shall meet the coating weight requirements of Table I when tested in accordance with4.5.2 (see6.10.6).5TABLE I. Types I, IB, IC, II, and IIB unsealed anodic coating weights.ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿³ Coating Type ³ Coating Weight (mg/ftÀ2Ù) ³ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ´³ I and IB ³ 200 minimum ³ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ´³ IC [1] ³ 200 minimum - 700 maximum ³ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ´³ II ³ 1000 minimum ³ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ´³ IIB ³ 200 minimum - 1000 maximum ³ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ[1] Coating weights over 700 mg/ftÀ2Ù may be used if specified inthe contract or purchase order (see 6.1.2 and 6.2).3.7.1.2 Corrosion resistance. After exposure to the salt spray test specified in4.5.3, specimens shall be visually examined to determine that all of the following conditions are met:a. Test specimens shall show no more than a total of 15 isolated pits(see 6.19), none larger than 0.031 inch in diameter, in a total of 150 square inches of test area grouped from five or more test pieces. Areas within 0.062 inch from identification markings, edges and electrodecontact marks remaining after processing shall be excluded.b. Test specimens shall show no more than 5 isolated pits, none larger than0.031 inch in diameter, in a total of 30 square inches from one or more test pieces. Areas within 0.062 inch from identification markings,edges and electrode contact marks remaining after processing shall beexcluded.c. In addition to the requirements in (a) and (b) above, Type I and IBtest specimens shall not exhibit patchy dark gray areas (spots, streaks, or marks).3.7.1.3 Light fastness resistance. Class 2, dyed anodic coatings, shallshow no more fading or discoloration than would be equivalent to a Delta (E) value of 3 when subjected to the light fastness resistance test (see 4.5.4), unless otherwise specified in the contract or purchase order (see 6.2). Light fastness resistance shall be determined only when specified in the contract, purchase order or applicable drawing (see 6.2).3.7.1.4 Paint adhesion. When tested in accordance with4.5.6, no intercoat separation shall occur between the paint system and the anodic coating or between the anodic coating and the base metal. Paint adhesion shall be determined only when specified in the contract, purchase order or applicable drawing (see6.2).3.7.2 Type III coatings.3.7.2.1 Thickness of coating. Unless otherwise specified in the contract, purchase order, or applicable drawing (see 6.2), the nominal thickness of the coating shall be 0.002 inch (2 mils) (see 6.16, 6.17 and 6.10 through 6.10.5). Unless otherwise specified, the thickness of the coating shall not vary by more than +/- 20 percent for coatings up to 0.002 inches thick (2 mils) when testedin accordance with 4.5.1. Coatings over 0.002 inches (2 mils) shall not vary3.7.2.1.1 Weight of coating. The coating weight may be determined in lieu of the coating thickness (see 3.7.2.1), at the option of the procuring activity. Unsealed Type III coatings shall have a minimum coating weight of 4320 milligrams per square foot for every 0.001 inch of coating when tested in accordance with4.5.2 (see6.2).3.7.2.2 Abrasion resistance. When tested in accordance with4.5.5, unsealed Type III coatings shall provide a hard abrasion resistant finish as specified herein (see6.17). The anodic coating shall have a maximum wear index of3.5mg/1000 cycles on aluminum alloys having a copper content of 2 percent or higher (see 6.13). The wear index for all other alloys shall not exceed 1.5mg/ 1000 cycles.3.8 Sealing.3.8.1 Types I, IB, IC, II, and IIB. All Types I, IB, IC, II and IIB anodic coatings shall be completely sealed, unless otherwise specified in the contract, purchase order or applicable drawing (see 6.2). They shall be sealed in accordance with 3.8.1.1 or 3.8.1.2, as applicable. If wetting agents are used they shall be of the non-ionic type.3.8.1.1 Class 1. When class 1 is specified, sealing shall be accomplished by immersion in a sealing medium such as a 5 percent aqueous solution of sodiumor potassium dichromate (pH 5.0 to 6.0) for 15 minutes at 90 deg. C to 100 deg.C (194 deg. F to 212 deg. F), in boiling deionized water, cobalt or nickel acetate, or other suitable chemical solutions (see 6.15).3.8.1.2 Class 2. When class 2 is specified, sealing shall be accomplished after dyeing by immersion in a sealing medium, such as a hot aqueous solution containing 0.5 percent nickel or cobalt acetate (pH 5.5 to 5.8), boiling deionized water, duplex sealing with hot aqueous solutions of nickel acetate and sodium dichromate (see 6.11), or other suitable chemical solutions.3.8.2 Type III. Type III coatings shall not be sealed where the main function of application is to obtain the maximum degree of abrasion or wear resistance. Where Type III coatings are used for exterior non-maintained applications requiring corrosion resistance but permitting reduced abrasion resistance, the contract or purchase order shall specify that sealing is required. Sealing for such Type III coatings shall be accomplished by immersion in a medium, such as boiling deionized water, in a hot aqueous 5 percent sodium dichromate solution, in a hot aqueous solution containing nickel or cobalt acetate or other suitable chemical solutions (see 6.2). When Type III coatings are provided unsealed, parts shall be thoroughly rinsed in cold, clean water and dried after anodizing.3.9 Dimensions of coated articles. Articles or parts shall comply with the dimensional requirements of the applicable drawings after application of the anodic coating (see 6.10.1). (For interference in close fits of parts or assemblies see 6.10.5).3.10 Toxicity. The coatings and electrical/chemical processes used to develop these anodic coatings shall have no adverse effect on the health of personnel when used for their intended purposes. Questions pertinent to this effectshall be referred by the contracting activity to the appropriate departmental medical service who will act as an advisor to the contracting agency.73.11 Painting/coating. Painting/coating operations shall be performed as soon as practical after the anodizing process on clean coatings. If parts require storage prior to painting/coating, they shall be stored in a manner that will avoid contamination. If the parts become contaminated, they shall be cleanedin a manner that will not be detrimental to the anodic coating or the basis metal, (see 6.3).3.12 Dyeing or coloring. Anodic coatings shall not be allowed to dry before dyeing or coloring. Items to be dyed or colored should be preferably coated by the Type II anodizing treatment (see 6.12). Dyed or colored coatings shall not be allowed to remain in rinse waters for more than 5 minutes before sealing.3.13 Workmanship. Except for touch up areas in accordance with 3.3.4 and as noted below, the applied anodic coating shall be continuous, smooth, adherent, uniform in appearance, free from powdery areas, loose films, breaks, scratches and other defects which will reduce the serviceability of anodized parts or assemblies. Differences in anodic coating appearance resulting from inherent base metal differences in a component such as the presence of welds, components containing cast and machined surfaces, and differences in grain size within a forging shall not be cause to reject the anodic coating unless otherwise specified in the contract or purchase order (see 6.2). Slight discolorationfrom dripping or rundown of the sealing solution from designed crevices in a component shall be allowed.3.13.1 Contact marks. The size and number of contact marks shall be at a minimum consistent with good practice (see 6.14). If a specific location for contact marks is desired, the location shall be specified on the contract or purchase order (see 6.2).4. QUALITY ASSURANCE PROVISIONS4.1 Responsibility for inspection. Unless otherwise specified in the contract or purchase order, the contractor is responsible for the performance of all inspection requirements (examinations and tests) as specified herein. Exceptas otherwise specified in the contract or purchase order, the contractor mayuse his own or any other facilities suitable for the performance of the inspection requirements specified herein, unless disapproved by the Government. The Government reserves the right to perform any of the inspections set forthin the specification where such inspections are deemed necessary to ensure supplies and services conform to prescribed requirements.4.1.1 Responsibility for compliance. All items must meet all requirements of Section 3. The inspection set forth in this specification shall become a part of the contractor's overall inspection system or quality program. The absence of any inspection requirements in the specification shall not relieve the contractor of the responsibility of ensuring that all products or supplies submitted to the Government for acceptance comply with all requirements of the contract. Sampling inspection, as part of manufacturing operations, is an acceptable practice to ascertain conformance to requirements, however, thisdoes not authorize submission of known defective material, either indicated or actual, nor does it commit the Government to acceptance of defective material. 4.2 Classification of inspection. The Inspection requirements specifiedherein are classified as follows:8。

SAE AS 5127A-2002

SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising therefrom, is the sole responsibility of the user.”SAE reviews each technical report at least every five years at which time it may be reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions.Copyright 2002 Society of Automotive Engineers, Inc.All rights reserved.Printed in U.S.A.TO PLACE A DOCUMENT ORDER: (724) 776-4970 FAX: (724) 776-0790 SAE WEB ADDRESS: 400 Commonwealth Drive, Warrendale, PA 15096-0001AEROSPACE STANDARD AS5127REV.AIssued1997-05Revised 2002-03Superseding AS5127Methods for Testing Aerospace SealantsTABLE OF CONTENTS1.SCOPE (3)1.1Form.............................................................................................................................................31.2Application....................................................................................................................................31.3Safety – Hazardous Materials (3)2.APPLICABLE DOCUMENTS (3)2.1SAE Publications..........................................................................................................................32.2ASTM Publications.......................................................................................................................42.3U.S. Government Publications.....................................................................................................52.4NAS Publications . (5)3.STANDARD TOLERANCES (5)3.1Standard Tolerances (5)4.STANDARD TEST CONDITIONS (6)4.1Test Conditions (6)5.STANDARD HEAT CYCLES (6)5.1Standard Heat Cycle (6)6.PREPARATION OF TEST SPECIMENS............................................................................................66.1Chemical Conversion Coating Application...................................................................................66.1.1Preparation of Aluminum Panel Test Surfaces.............................................................................66.1.2Chemical Conversion Coating......................................................................................................6--`-`-`,,`,,`,`,,`---SAE AS5127 Revision ATABLE OF CONTENTS (Continued)6.2Organic Coatings (7)6.2.1Polyurethane Fuel Tank Coating (7)6.2.2High Solids Fuel Tank Primer (8)6.2.3High Solids Polyurethane Coating (8)6.2.4VOC Compliant Epoxy Primer Coating (9)6.3Preparation of AMS 5511 and AMS 5516 Stainless Steel Panel Test Surfaces (9)6.4Preparation of AMS 4901 and AMS 4911 Titanium Panel Test Surfaces (9)6.5Preparation of Organic Composite Test Surfaces (9)6.5.1Cleaning of AS4/3501-6, IM7/5250-4 and Other Composite Surfaces (10)6.6Preparation of Aircraft Transparent Surfaces (10)6.7Application of Adhesion Promoter (10)6.8Application of Sealing Compounds (10)6.9Curing of Sealing Compounds (11)7.STANDARD TEST FLUIDS (11)7.1Jet Reference Test Fluid (11)7.2Petroleum Base Hydraulic Fluid (11)7.3Engine Oil (11)8.TEST METHODS (11)8.1Specific Test Methods................................................................................................................11--` -` -` , , ` , , ` , ` , , ` -----`-`-`,,`,,`,`,,`---SAE AS5127 Revision A1. SCOPE:1.1Form:This standard describes the accepted methods used for testing aerospace sealants for qualification and for quality conformance or acceptance testing.1.2Application:This standard is intended to be used with AMS specifications or other materials specifications which govern the procurement of aerospace sealants.NOTE:All test procedures and associated test materials designated in this standard were adopted from current military and consensus material specifications for sealing compounds. Cross-references for equivalent test materials may be obtained using documents such as the SAEAMS Index or the ASTM Metals & Alloys in the Unified Numbering Systems referencemanuals.1.3Safety - Hazardous Materials:While the materials, methods, applications, and processes described or referenced in this standard may involve the use of hazardous materials, this standard does not address the hazards which may be involved in such use. It is the sole responsibility of the user to ensure familiarity with the safe and proper use of any hazardous materials and to take necessary precautionary measures to ensure the health and safety of all personnel involved.2.APPLICABLE DOCUMENTS:The issue of the following documents in effect on the date of the purchase order form a part of this standard to the extent specified herein. The supplier may work to a subsequent revision of a document unless a specific document issue is specified. When the referenced document has been cancelled and no superceding document has been specified, the last published issue of that document shall apply. In the event of conflict between the text of this document and references cited herein, the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained.2.1SAE Publications:Available from SAE, 400 Commonwealth Drive, Warrendale, PA 15096-0001.AMS 1640Corrosion Removing Compound, For Aircraft SurfacesAMS 2471Anodic Treatment of Aluminum Alloy, Sulfuric Acid Process, Undyed Coating AMS 2629Fluid, Jet ReferenceAMS 3020Oil, Reference, for "L" Stock Rubber TestingAMS 3021Fluid, Reference, for Testing Di-Ester (polyol) Resistant Material2.1 (Continued):AMS 3100Adhesion Promoter for Polysulfide Sealing CompoundsAMS 3166Solvents, Cleaning, Cleaning Prior to Application of Sealing CompoundsAMS 3803Wipes, Cotton, Loosely WovenAMS 3819Cloths, Cleaning, for Aircraft Primary and Secondary Structural SurfacesAMS 4037Aluminum Alloy Sheet and Plate, 4.4Cu 1.5Mg 0.60Mn, (2024; -T3 Flat Sheet,-T351 Plate) Solution Heat TreatedAMS 4045Aluminum Alloy Sheet and Plate, 5.6Zn - 2.5Mg - 1.6Cu - 0.23Cr, (7075; -T6Sheet, -T651 Plate), Solution and Precipitation Heat Treated AMS 4377Magnesium Alloy, Sheet and Plate, 3.0 Al 1.0 Zn 0.20 Mn, Cold Rolled, Partially AnnealedAMS 4049Aluminum Alloy Sheet and Plate, Alclad, 5.6Zn - 2.5Mg - 1.6Cu - 0.23Cr,(Alclad 7075-T6 Sheet, -T651 Plate), Solution and Precipitation Heat Treated AMS 4901Titanium Sheet, Strip and Plate, Commercially Pure, Annealed, 70.0 ksi (485MPa)AMS 4911Titanium Alloy Strip, Sheet and Plate, 6Al 4V, AnnealedAMS 5511Steel, Corrosion Resistant, Sheet, Strip, and Plate, 19Cr - 9.5Ni (407L),Solution Heat TreatedAMS 5516Steel, Corrosion Resistant, Sheet, Strip, and Plate, 18Cr - 9.0Ni (SAE 30302),Solution Heat TreatedAMS-C-27725Coating, Corrosion Preventive, for Aircraft Integral Fuel TanksAMS-G-25667Glass, Monolithic, Aircraft GlazingAMS-P-83310Plastic Sheet, Polycarbonate, TransparentAMS-QQ-A-250/4Aluminum Alloy 2024, Plate and SheetAIR4069Sealing Integral Fuel TanksAS4491Plastic Disposable Cartridge, Plunger, Nozzles, and Cartridge Assembly2.2ASTM Publications:Available from ASTM, 100 Barr Harbor, West Conshohocken, PA 19428-2959.ASTM B 117Operating Salt Spray (Fog) ApparatusASTM D 329Acetone, Spec. forASTM D 412Vulcanized Rubber and Thermoplastic Rubbers and Thermoplastic Elastomers - TensionASTM D 740Methyl Ethyl KetoneASTM D 792Specific Gravity (Relative Density) and Density of Plastics by Displacement ASTM D 836Industrial Grade Benzene, Spec. forASTM D 1007Secondary Butyl Alcohol, Spec forASTM D 1125Tests for Electrical Conductivity and Resistivity of WaterASTM D 1475Density of Paint, Varnish, Lacquer, and Related ProductsASTM D 2240Rubber Property - Durometer HardnessASTM D 4976Polyethylene Plastics and Extrusion MaterialsASTM E 1742Radiographic Inspection --` -` -` , , ` , , ` , ` , , ` ---2.3U.S. Government Publications:Available from DODSSP, Subscription Services Desk, Building 4D, 700 Robbins Avenue,Philadelphia, PA 19111-5094.A-A-55820Class1 Orthophosphoric (Phosphoric) Acid, TechnicalA-A-58054Abrasive Mats, Non-woven, Non-metallicA-A-59281 Cleaning Compound, Solvent MixturesPPP-C-96 Cans, Metal, 28 Gage and LighterTT-I-735 IsopropylAlcoholMIL-DTL-81706Chemical Conversion Materials for Coating Aluminum and Aluminum Alloys MIL-PRF-5425 Plastic Sheet, Acrylic, Heat ResistantMIL-PRF-23377Primer Coatings, Epoxy Polyamide, Chemical and Solvent ResistantMIL-PRF-25690Plastic, Sheets and Parts, Modified, Acrylic Base, Monolithic, Crack Propagation ResistantMIL-PRF-85285Coating, Polyurethane, High Solids, for Aerospace ApplicationsMIL-PRF-85582Primer Coatings: Epoxy, VOC Compliant, Chemical and Solvent ResistantMIL-PRF-87937Cleaning Compound, Aerospace EquipmentMIL-S-38714Sealant Cartridge for Two Component Materials2.4 NAS Publications:Available from Aerospace Industries Association, Inc., 1250 Eye Street NW, Washington, DC 33126.NAS 679 Nut, Self-locking, Hexagon - Low HeightNAS 1154Screw, Machine - Flat, 100 Degrees Head, Close Tolerance, Short Thread, Torque SetNASM7839 Screws Structural, Aircraft3. STANDARD TOLERANCES:3.1Standard Tolerances:Unless otherwise specified, standard tolerances shown in Table 1 shall apply:TABLE 1 - Standard TolerancesMeasurement Units ToleranceTemperature±2 °F (±1 °C)Day±2 hoursHour±5 minutesMinute±10 secondsInches (mm)±0.010 inch (±0.20 mm)--` -` -` , , ` , , ` , ` , , ` ---4. STANDARD TEST CONDITIONS:4.1Test Conditions:Standard laboratory test conditions shall be 77 °F (25 °C) and 50% ± 5% relative humidity. Except as otherwise stated, all test specimens shall be prepared and cured at these conditions and all tests shall be performed at 77 °F ± 5 °F and 50% ± 10% RH.5. STANDARD HEAT CYCLES:5.1Standard Heat Cycle:Heat cycles to which sealants shall be environmentally exposed prior to testing shall be identified in each material specification.6. PREPARATION OF TEST SPECIMENS:6.1Chemical Conversion Coating Application:6.1.1Preparation of Aluminum Panel Test Surfaces:Aluminum panel test surfaces, both bare (AMS4037 and AMS 4045) and Alclad (AMS 4049) shall be cleaned by flooding the surface with clean solvent conforming to AMS 3166 or A-A-59281 followed by scrubbing with clean AMS 3819 GradeA cloth wipes. After scrubbing, the panel surface shall again be flooded with solvent, thenimmediately wiped dry using clean, dry AMS 3819 Grade A wipes. DO NOT allow solvent toevaporate from surface.NOTE:Panel cleaning shall be accomplished just prior to application of sealing compound.6.1.2Chemical Conversion Coating:When aluminum panel test surfaces require chemical conversioncoating, MIL-DTL-81706, Class 1A, Form 11, Method C shall be followed. The chemical conversion coating shall be prepared according to the manufacturer’s instructions.6.1.2.1Panel Preparation:Degrease aluminum test panels using a suitable organic solvent, followed byalkaline detergent cleaning using MIL-C-87937 Type I material or an equivalent commerciallyavailable alkaline cleaner. The cleaning may be accomplished by brushing, swabbing or soaking the panels in the detergent solution or by a combination of the above techniques. Rinse thecleaned panels in warm flowing tap water 60 to 100 °F (16 to 38 °C), and check for cleanliness by observing for a waterbreak free surface. If a waterbreak occurs on the panel surfaces, returnthem to the detergent solution and repeat the cleaning procedure until a waterbreak free surface is obtained. Immediately transfer the cleaned panels to a deoxidizing solution consisting of thefollowing:a.Butyl alcohol - 35% by weight (ASTM D 1007)b.Distilled or deionized water - 22% by weight (ASTM D 1125)c.Isopropol alcohol - 25% by weight (TT-I-735)d.H3PO4 (85% by weight) - 18% by weight (A-A-55820)Acid deoxidizer conforming to AMS 1640 may also be used. Allow the panels to remain in theabove solution for 3 to 5 minutes. Rinse the panels thoroughly under flowing tap water.6.1.2.2Coating Application (Immersion):Transfer the deoxidized panels immediately to the chemicalconversion coating solution conforming to MIL-DTL-81706. Immerse the panels in the solution at standard temperature for 3 to 5 minutes or until a light straw color develops. (Color development time will vary with the aluminum alloy being conversion coated). After removal from theconversion coating solution, immediately rinse thoroughly in flowing distilled or deionized water.Arrange the panels in an upright position to permit them to drain dry. Apply the test materials to the conversion coated surfaces within 48 hours.NOTE:Mix the conversion coating solution in either 18-8 stainless steel, polyethylene or other compatible plastic containers. DO NOT MIX IN GLASS CONTAINERS.--`-`-`,,`,,`,`,,`---6.2Organic Coatings:When organic coatings are specified for panel test surfaces, the coatings shall be fully cured as defined by the applicable coating specification. The applied coatings shall be at least 14 days old and not more than six months old when stored at ambient indoor temperatures.6.2.1Polyurethane Fuel Tank Coating:Bare aluminum (AMS 4045) test panels shall be sulfuric acidanodized in accordance with AMS 2471. One surface of the anodized aluminum panels shall then be coated with polyurethane according to AMS-C-27725.NOTE:When organic coatings are specified for the test panels, the coatings shall be fully cured as defined by the applicable coating specification before cleaning.6.2.1.1Cleaning of AMS-C-27725 Surface for Sealing:The AMS-C-27725 test surface shall be cleanedby flooding the surface with clean solvent conforming to AMS 3166 or A-A-59281 followed byscrubbing with clean AMS 3819 Grade A cloth wipes. After scrubbing, the test surface shall again be flooded with solvent, then immediately wiped dry using clean, dry AMS 3819 Grade A wipes.DO NOT allow solvent to evaporate from the surface.NOTE:Panel cleaning shall be accomplished just prior to application of sealing compound.6.2.2High Solids Fuel Tank Primer:Bare aluminum (AMS 4045) test panels shall be sulfuric acidanodized in accordance with AMS 2471. One surface of the anodized aluminum panels shall then be primed with epoxy primer according to MIL-PRF-23377.NOTE:When organic coatings are specified for the test panels, the coatings shall be fully cured as defined by the applicable coating specification before cleaning.6.2.2.1Cleaning of MIL-PRF-23377 Surface for Sealing:The MIL-PRF-23377 test surface shall becleaned by flooding the surface with clean solvent conforming to AMS 3166 or A-A-59281 --`-`-`,,`,,`,`,,`---followed by scrubbing with clean AMS 3819 Grade A cloth wipes. After scrubbing, the testsurface shall again be flooded with solvent, then immediately wiped dry using clean, dry AMS3819 Grade A wipes. DO NOT allow the solvent to evaporate from the surface.NOTE:Panel cleaning shall be accomplished just prior to application of sealing compound.6.2.3High Solids Polyurethane Coating:The primed surfaces of aluminum test panels prepared inaccordance with 6.2.2 shall be coated according to the requirements of MIL-PRF-85285.NOTE:When organic coatings are specified for the test panels, the coatings shall be fully cured as defined by the applicable coating specification.6.2.3.1Cleaning of MIL-PRF-85285 Surface for Sealing:The MIL-PRF-85285 test surface shall becleaned by flooding the surface with clean solvent conforming to AMS 3166 or A-A-59281followed by scrubbing with clean AMS 3819 Grade A cloth wipes. After scrubbing, the testsurface shall again be flooded with solvent, then immediately wiped dry using clean, dry AMS3819 Grade A wipes. DO NOT allow the solvent to evaporate from the surface.NOTE:Panel cleaning shall be accomplished just prior to application of sealing compound.6.2.4VOC Compliant Epoxy Primer Coating:Bare aluminum (AMS 4045) test panels shall be sulfuricacid anodized in accordance with AMS 2471. One surface of the anodized aluminum panels shall then be coated with VOC compliant epoxy primer according to MIL-PRF-85582.NOTE:When organic coatings are specified for the test panels, the coatings shall be fully cured as defined by the applicable coating specification.6.2.4.1Cleaning of MIL-PRF-85582 Surface for Sealing:The MIL-PRF-85582 test surface shallbecleaned by flooding the surface with clean solvent conforming to AMS 3166 or A-A-59281followed by scrubbing with clean AMS 3819 Grade A cloth wipes. After scrubbing, the testsurface shall again be flooded with solvent, then immediately wiped dry using clean AMS 3819Grade A wipes. DO NOT allow solvent to evaporate from the surface.NOTE:Panel cleaning shall be accomplished just prior to application of sealing compound.6.3Preparation of AMS 5511 and AMS 5516 Stainless Steel Panel Test Surfaces:Corrosion resistant steel (e.g. AMS 5516) test surfaces shall be cleaned by flooding the surface to be cleaned with clean solvent conforming to AMS 3166 or A-A-59281 followed by scrubbing using A-A---`-`-`,,`,,`,`,,`---58054, Type I, Class 1 nylon, aluminum oxide abrasive mats. After scrubbing, the panel surface shall be rinsed and flooded with solvent and immediately wiped dry using clean, dry AMS 3819 Grade A cloth wipes. DO NOT allow solvent to evaporate from the cleaned surface.NOTE:Panel cleaning shall be accomplished just prior to application of sealing compound.6.4Preparation of AMS 4901 and AMS 4911 Titanium Panel Test Surfaces:Commercially pure titanium (e.g. AMS 4901) and AMS 4911 titanium test surfaces shall be cleaned by flooding the side to be cleaned with clean solvent conforming to A-A-59281 followed by scrubbing using A-A-58054, Type III, Class 1, Grade A nylon, silicon carbide abrasive mats. After scrubbing, the panel surface shall be rinsed and flooded with solvent, then immediately wiped dry using clean, dry AMS 3819 Grade A cloth wipes. DO NOT allow solvent to evaporate from the cleaned surface.NOTE:Panel cleaning shall be accomplished just prior to application of sealing compound.6.5Preparation of Organic Composite Test Surfaces:Graphite/epoxy (AS4/3501-6), Graphite/Bismaleimide (IM7/5250-4), and other designated composite materials shall have a quasi-isotropic laminated construction. Eight plies of uni-directional tape shall be prepared in a [(0°, 45°, 90°, 135°)] symmetrical layup to provide a finished laminate thickness of0.040 inch (1.02 mm). A peel ply (nylon is acceptable) shall be applied to one surface for thecomposite curing process.6.5 (Continued):For fabrication of AS4/3501-6 graphite/epoxy laminates, the following autoclave cure cycle shall be maintained;Apply a minimum vacuum of 28 inches (711 mm) of Mercury and a minimum pressure of 85 psig (587 KPa). Heat to 225 °F (107 °C) at a rate of 2 to 4 °F (1 to 2 °C) per minute. Hold at 225 °F(107 °C) for one hour. Heat to 350 °F (177 °C) at 2 to 4 °F (1 to 2 °C) per minute. Hold at 350 °F (177°C) for two hours. Cool to 150 °F (66 °C). Release pressure and vacuum. Remove peel ply.The cured composites can be machined to the required test panel dimensions.6.5.1Cleaning of AS4/3501-6, IM7/5250-4 and Other Composite Surfaces:Composite panel testsurfaces (peel ply or tool side) shall be cleaned by flooding the surface to be cleaned with clean solvent conforming to AMS 3166 or A-A-59281 followed immediately by scrubbing using A-A-58054, Type I, Class I nylon, aluminum oxide abrasive mats. After scrubbing, the panel test surface shall be rinsed and flooded with solvent, then immediately wiped dry using clean AMS 3819 GradeA cloth wipes. DO NOT allow the solvent to evaporate from the surface.NOTE:Panel cleaning should be accomplished just prior to application of sealing compound.6.6Preparation of Aircraft Transparent Surfaces:Aircraft transparencies (MIL-PRF-5425, AMS-G-25667, MIL-PRF-25690 and AMS-P-83310) shall be cleaned by flooding the test surface with a 50% solution of isopropyl alcohol (TT-I-735) and water, followed by scrubbing with clean AMS 3803 cloth wipes which are free of sizing or any othercontaminants. After scrubbing, the test surface shall again be flooded with clean50% solution and immediately wiped dry using clean AMS 3803 cloth wipes.6.7Application of Adhesion Promoter:When adhesion promoter is required for testing of sealing compounds, panel test surfaces shall be treated with adhesion promoter conforming to AMS 3100 or with the manufacturer's recommended adhesion promoter. This shall be done immediately after the panel is cleaned and by wetting a clean AMS 3819 Grade A cloth with adhesion promoter and wiping the surface. Allow adhesion promoter to air dry at least 30 minutes, but no more than 2 hours, before applying the sealant. If more than 2 hours has elapsed, reclean and reapply the adhesion promoter before applying the sealant.6.8Application of Sealing Compounds:Sealing compounds shall be mixed and applied to required test panel surfaces according to the procedures provided in the AS5127 slash sheets.SAE AS5127 Revision A- 11 -6.9Curing of Sealing Compounds:Sealing compound shall be fully cured at standard conditions according to 4.1, for the time specified in the material specification for the sealing compound under test. Testing of the cured sealing compound shall commence not more than 2 days after the completion of the specified cure.NOTE:Sealing compounds have different classes and different application times such as ClassA-1/6 or Class B-2. Class C sealants contain both application time and assembly timedesignations (Class C-48/168). These sealing compounds may have special requirementsconcerning standard curing times or accelerated cure conditions, which shall be defined inthe material specification for the sealing compound under test.7.STANDARD TEST FLUIDS:7.1Jet Reference Test Fluid:The jet reference fluid (JRF) required for conducting fluid immersion tests shall conform to AMS2629. AMS 2629 Type I fluid shall be used for all tests requiring jet reference fluid immersions except chalking; AMS 2629 Type II fluid shall be used for sealing compound chalking evaluations.7.2Petroleum Base Hydraulic Fluid:The hydraulic fluid required for conducting hydraulic fluid immersion tests shall conform to AMS 3020 (ARM 201).7.3Engine Oil:The engine oil required for conducting oil immersion tests shall conform to AMS 3021 (ARM 200).8.TEST METHODS:8.1Specific Test Methods:Test methods specific to type of sealing compound are contained in AS5127 slash sheets.PREPARED UNDER THE JURISDICTION OF AMS COMMITTEE "G-9"Copyright SAE InternationalProvided by IHS under license with SAENot for Resale No reproduction or networking permitted without license from IHS --`-`-`,,`,,`,`,,`---。

AMS 2481H 中文翻译

基本原理目录1.范围 (3)1.1 来源 (3)1.2 应用 (3)1.3 安全危险材料 (3)2. 相关文件 (3)2.1 SAE出版文件 (3)2.2 ASTM出版 (3)3. 技术要求 (4)3.1 准备 (4)3.11 (4)3.1.2 (4)3.2 步骤 (4)3.3 后处理 (4)3.3.1 浸铬酸 (4)3.3.2 氢脆 (4)3.4 属性 (4)3.4.1 表面 (4)3.4.2 (4)3.4.3 磷酸盐涂层重量 (5)3.5 质量 (5)4. 质量保证规定 (5)4.1 检验职责 (5)4.2 实验分类 (5)4.2.1 (5)4.2.2 定期试验 (5)4.2.3 试制实验 (5)4.3 实验取样 (5)4.3.1 测试通过 (5)4.3.2 定期测试 (6)4.3.3 样本配置 (6)4.3.4 氢脆测试 (6)4.4 批准 (6)4.4.1 (6)4.4.2 (6)4.4.3 (6)4.5 报告 (7)4.6 重采样和重新测试 (7)4.6.1 (7)4.6.2 (7)5. 交货准备 (7)5.1 包装 (7)5.1.1 (7)5.1.2 (7)6. 确认 (7)7. 废料 (7)8. 注意 (7)8.1 (7)8.2 (8)8.3 (8)8.4 (8)8.5 (8)在五年以来的总结上更新后的AMS2481H规范。

（本文翻译结果仅供参考）注意订购信息:以下信息由买方提供电镀处理器。

1)采购订单应指定不少于下列:•AMS 2481H•基体金属处理•基体的金属抗拉强度或硬度•如果不同于3.1.1，由处理器执行预处理减压(时间和温度)•特殊特性、几何或处理出现在部分需要特别注意的处理器•如果不同于3.3.2，由处理器执行氢脆排放•待处理件数量2)零件热处理等制造业务,成型,加入和媒体完成的情况会影响涂层的底物,或者如果涂层后执行,可以影响电镀部分。

这些类型的操作的顺序应该认识到是由指定的工程组织或购买者,而不是由该规范控制。

AMS2750E_中文翻译版本

AMS2750E--高温测量2012.7翻译完成时间：2013年2月5日目录1. 范围 (3)2. 应用文件 (3)2.1 ASTM出版物 (3)2.2 定义 (3)3. 技术要求 (8)3.1 温度传感器 (8)3.2 仪表(见表 3, 4, 和5)........................................... . (12)3.3 热加工设备 ........................................................... . (16)3.4 系统精度检测 (SATs) (18)3.5 炉温均匀性检测(TUS)..................................... . (23)3.6 试验室炉子 (38)3.7 记录 (38)3.8 圆整 (38)4. 质量保证条款...................... . (38)4.1 检验责任 (38)5. 运输准备...................... (47)6. 感谢 .......................................................................................................... . (48)7. 拒收 (48)8. 注释..................................................................................................................... (48)图 1 测试和随载传感器的重新使用和校准........................................... .. (13)图 2 炉子类别和均匀性.............................................................................. ..... . (16)图 3 仪表类型及要求............................................................................... ..... . (17)图 4 每工作区最少传感器要求..................................................................... (18)图 5 温度超过500F（260）时固定式系统精度测试偶的组合 (19)图 6 系统精度检查计算举例 (21)表 1 传感器和传感器的校准................................................................. (39)表 2 热电偶和补偿导线 ..................................................................... ............. .. (40)表 3 仪表和仪表校准................................................................ .................. .. (41)表 4 记录表盘分辨率要求（模拟表盘记录仪）........................................... (43)表 5 工艺记录仪打印和走纸速度...................................................... .............. . (43)表 6 零件炉子类别、仪表类型和系统精度校验（SAT）频率........................ (44)表 7 原材料用炉子级别、仪表类型和系统精度校验频率.......................... ....................... (45)表 8 零件炉子类别、仪表类型和温度均匀性测量（TUS）频率 .................. (46)表 9 原材料炉子类别、仪表类型和温度均匀性测量（TUS）频率............ ............... . (46)表 10 相应校准∕测量间隔允许延长的天数.................................... .. (47)表 11 温度均匀性测量传感器数量（........................................................... .. (47)1.范围1．1 本规范规定了对用于热处理的热加工设备的高温测量要求。

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阐述AMS-QQ-A-250A已确定符合SAE（美国机动车工程师学会）每隔五年修订的政策。

注意本规范意在取代联邦QQ-A-250F规范。

AMS-QQ-A-250的原始版本源自联邦QQ-A-250规范，只在编辑和格式上做了轻微的改变以适应SAE技术规范的出版要求。

修订版B将热处理规范从MIL-H-6088（已删除）改为AMS2772（替代文件），以确保对于做热处理反应测试样品至关重要的热处理参数符合零件热处理使用的参数（详见6.8）。

依据SAE 技术规范委员会（TSB）规则规定和关于加速吸收官方规格和规范的规则（TSB001），原始的联邦规范被采纳为SAE规范。

TSB规则提供：a.无需在SAE 委员会达成一致意见既可发布未修订的官方规格和规范; b.使用现行的官方规格和规范格式；c.排除任何合格产品列表部分。

1.范围和类别1.1范围本规范涵盖铝及铝合金板材和片材的一般要求。

特殊合金板材和片材的特殊要求涵盖在细节规范中（详见6.3）。

1.2类别1.2.1回火：板材和片材根据详细规范中规定的回火进行分类，如。

在美国国家规范ANSI H35.1中对回火的定义有规定。

2.适用文件：2.1SAE 出版物适用信息来源于SAE,400联邦道法, 沃伦代尔法,PA 15096-0001 或 .AMS 2772 铝合金原材料热处理AMS-STD-184 铝，镁及钛的识别唛头2.2美国政府出版物适用信息来源于国防部规范化资料管理中心, 订阅服务台,Building 4D,700罗宾斯大道, 费城法案, PA 19111-5094 或。

AMS-STD-2154 检查，超声，锻造金属，生产流程FED-STD-123 运输唛头（民用机构）FED-STD-151 金属，试验方法2.3ASTM 出版物：适用信息来源于ASTM,100巴尔港道法,P.O. Box C700, 西康舍霍肯法, PA 19428-2959 或 .ASTM B 557 锻造和浇铸铝及镁合金拉力测试ASTM B 660 铝及镁产品包装ASTM D 1193 试剂水ASTM E 172 散发的光谱化学分析，励磁电源的描述和说明ASTM E 290金属延性半导向抗弯测试ASTM E 1004 导电性，决定，采用电磁法（涡流）ASTM E 1282 金属，矿石和相关材料定量分析法ASTM G 34 2xxxx和7xxxx系列的铝合金的剥蚀敏感性（EXCO 测试）ASTM G 38挡圈应力腐蚀测试样品的制作和选用ASTM G 47 高强度铝合金应力腐蚀破裂敏感性测试2.4ANSI 出版物：适用信息来源于美国国家规范协会 ,地址： 25 West 43rd Street, New York，NY10036 或者 .。

ANSI H35.1 铝合金以及铝的回火设计体系ANSI H35.2 铝制品的尺寸公差3.要求：3.1说明书：独立项目的要求应在此说明，并与其适用的说明书保持一致。

3.1.1化学成分：化学成分应如详细规范所示进行说明。

3.2机械特性：机械特性应如详细规范中所示进行说明。

3.3容许误差：除非另有规定，否则误差不能超过ANSI H35.2 中的规定。

3.4识别唛头板材和片材应按要求进行唛头，与AMS-STD-184和详细规范一致。

（见6.2）3.5没有明确说明的尺寸要求未在详细规范中说明的厚度的机械特性及ANSI H35.2 未涵盖的尺寸和厚度的公差应该在合同或订单中明确规定。

（见6.2）3.6导电性：在制定详细说明时，导电性要求应与4.7中的测试规定一致。

3.7 剥离腐蚀在制定详细说明时，除非详细说明或采购订单中另有规定，板材和片材处理后满足的机械特性和导电性要求，应该表现出不低于ASTM G34表2图B 所示的剥离腐蚀水平。

供应商应保留所有批次记录以便测试。

3.8 应力腐蚀破裂在制定详细说明时，厚度为0.750英寸及以上的板材，其处理后满足详细说明中规定的机械特性和导电性要求，当按照4.9进行测试时不能有任何证据表明存在应力腐蚀破裂。

该测试应按照详细规范中所规定的应力水平进行测试。

供应商应保留所有批次的性能记录以便测试。

3.9 热处理：除非在详细说明、合同或者订单中另有规定，详细规范中指定的回火热处理应与AMS 2772一致。

3.10 内部缺陷：在制定详细说明时，板材应进行内部缺陷的超声检验。

3.11 镀层和镀层厚度：镀层和镀层厚度应如详细规范中规定。

（见4.6）3.12 工艺：板材和片材应在质量和状态上保持一致；干净，完好，光滑，平坦，无搭扣，无气泡以及其他的外伤缺陷，且符合最佳商业价值界限。

由热处理引起的褪色应不会造成拒收。

4.质保条款4.1检查责任除非合同或订货单中另有规定，合约商对此规定的所有性能检测要求负责。

除非合同或订货单中另有规定，合约商可以使用自己的或者其他适合检查要求性能的设备。

买方保留进行说明中规定的所有检查的权利，而这些检查对于确保供货和服务符合规定要求非常必要。

4.2取样4.2.1批量检查：批量检查应如下操作：4.2.1.1热处理批次：对于热处理回火，批量检查内容应包括相同加工方式的材料的可辨识数量，可追溯其热处理批次或批量的合金、回火以及厚度，这些检查可同时进行。

4.2.1.2非热处理批次：对于非热处理批次，批量检查内容应包括相同加工方式的材料的可辨识数量、合金、回火以及厚度，这些检查可同时进行。

4.2.2化学分析取样4.2.2.1铸锭分析：至少从每组铸锭中选取一个样品，该组相同的合金铸锭为生产商使用同源的融合金属同时浇铸而成，样品应按 3.1 进行分析。

拒绝不符合规范规定的铸锭。

完整的铸锭分析记录应对在生产商工厂的采购行为有利。

4.2.2.2完成产品分析：若不能按4.2.2.1规定操作，样品应这样选择：一个批次中，每2000磅左右的片材选取一个样品，以及每4000磅左右的板材选取一个样品。

该方法不适合于从同一板材和片材中选取样品不能超过一件的情况，只适用于超过一件的情况。

4.2.3机械测试取样：4.2.3.1卷式片材和平铺式片材取样：从每个母卷的各个端头选取一个样品（见6.4），但是对每批次产品应要求：每2000磅或者一个部件中，取样不能超过一个。

4.2.3.2托盘取样：从每个母盘的各个端头选取一个样品（见6.4），但是对每批次产品应要求：每4000磅或者一个部件中，取样不能超过一个。

4.2.4外观检查及尺寸检查的选样：检查所有板材和片材，看是否符合关于工艺和识别唛头的规定。

应进行尺寸检查以确保符合规定的公差。

为满足采购许可，供方可以采用进行尺寸，标识和工艺检查的统计质量控制系统。

4.2.5导电性测试取样：取样符合4.2.3 要求。

4.2.6剥离腐蚀和应力腐蚀测试的取样：当厚度允许时（见3.8），详细规范中最小机械特性表所列的每一个尺寸范围适用回火的前三个批次的产品按每4000磅左右选取两个样品。

此后，除非详细规范或订单中另有规定，每个月生产的详细规范中最小机械特性表所列的每一个尺寸范围适用回火的样品至少每个月进行一次测试。

4.3检查：4.3.1外观和尺寸检查：按4.2.4规定选取的每一个样板或样片应进行外观检查和测量，以核实它是否符合本规范。

4.3.2超声波检测：制定详细规范时，板材应按MIL-STD-2154标准进行内部缺陷检测。

接受标准应在详细规范中规定。

4.4测试程序:4.4.1化学分析：应采用与ASTM E 1282标准一致的化学湿选法或与ASTM E 172一致的光化学测定法进行化学分析。

为防止产生争论，用ASTM E 1282的化学湿选法进行的化学分析应该被视为基础。

4.4.2机械测试：4.4.2.1测试样品种类：拉伸试样应遵守ASTM B 557。

对于1/2 寸厚度的材料，应采用2寸长的标准长方形拉伸样品。

对于1/2寸到3/4寸厚的材料和以高度方向取得的拉伸样品，应采用直径为0.500的圆形拉伸样品，或与规范的0.500直径成比例的圆形的拉伸小样品，其公称直径为0.350或者0.250寸。

对于3/4寸及以上厚度的材料，应采用直径为0.500的圆形拉伸样品。

宽不足3/4寸的片材，应进行全部测试。

4.4.2.2测试样品的位置：与详细规范中规定的一样，从板材和片材上选取的拉伸样品应与最终成卷的方向平行或垂直。

对于厚0.5寸到1.5寸的板材，拉伸样品应从板材两面的中轴线上选取。

对于厚度超过 1.5寸的板材，拉伸样品选取的轴线应该是一面距另一面的四分之三处。

4.4.2.2.1抗拉强度：抗拉强度的确定应与ASTM B 557一致。

4.4.2.2.2屈服强度：屈服强度的确定应与ASTM B 557 一致。

4.5 抗弯试验:在详细规范中，根据ASTM E 290测试的样品，在心轴周围有一个直径应是板材和片材公称厚度N倍的室温超过180度的环境中，与最终成卷的平行或垂直方向都能弯曲。

若材料太窄以致不能沿成卷平行方向弯曲，则应沿成卷垂直方向弯曲。

样品既可加压弯曲也可熔断弯曲。

N值应该在详细规范中指定。

对于电镀的材料，裸露面应该在弯曲的外面。

4.6电镀板材和片材的镀层厚度：在详细规范中，若出现关于成品板材和片材的镀层一致性问题，应取不少于三个长约3/4寸的横截样品，一个边缘垂直于样品平面放置并抛光，用于显微镜检查。

采用凯勒蚀刻法或者其他适合将中心部分和镀层区分的蚀刻法后，每一个样品应该至少放大一百倍进行测试，且镀层厚度的最大或最小值应在每个放置样品靠近暴露边沿相距约1/10寸的五个位置进行测量。

每10个沿放置样品暴露边沿的电镀面测定的厚度平均值即为镀层的平均厚度，且不应低于规定的最小平均值。

4.7 导电性：在详细规范中，导电性应根据ASTM E 1004进行确定。

测量应在相同的拉伸试验样品上进行。

有镀层的材料，进行导电性测试前，应去除镀层。

4.8 抗剥蚀性：除非在详细规范或订单中另有规定，样品应按ASTM G 34 要求进行准备和测试。

对于所有厚度为0.100寸或以上厚度的材料，应采用机械加工去除其表面10%的厚度。

加工后的表面应在测试之后进行评估。

对于电镀材料，与测试面相对的镀层可去除或掩藏。

化学铣削可用来替代机械加工。

4.9 抗应力腐蚀破裂：样品应按ASTM G 47 要求准备和测试，或根据详细规范或订单中的其他规定进行。

4.10 拒收和再检测：若出现样品不合符本规范要求，依据测试方法规定的再测试条款，将会造成样品所代表的材料被拒收。

当无取样计划或采购代理同意不用取样时，以及当有证据证明失败样品不能代表批次材料时，及当详细规定无其他要求时，至少选用两个样品替代每个测试失败的样品。

所有选用作再测试的样品必须满足规范要求或其批次产品将被拒收。

5.交付准备：5.1 保存，包装和装箱：所有板材和片材都应按ASTM B660要求进行保存，包装和装箱。