塑料模具专业英语[1]1 PPT课件
塑料模具设计技术英语
Chapter 1 General mould construction1. 1 Basic TerminologyImpression: The injection mould is an assembly of parts containing within it an ‘impression’ into which plastic material is injected and cooled . It is the im- pression which gives the moulding its form. The impression may, therefore, be defined as that part of the mould which imparts shape to the moulding. ①The impression is formed by two mould members:(I) The cavity, which is the female portion of the mould, gives the mould-Ing its external form.(II) The core, which is the male portion of the mould, forms the internal shape of the moulding.Cavity and core plates: This is illustrated for a simple container in Figure1.1. The basic mould in this case consists of two plates. Into one plate is sunkthe cavity which shapes the outside form of themoulding and is therefore known as the cavityplate. ②Similarly, the core which projects fromthe core plate forms the inside shape of themoulding. When the mould is closed, the twoplates come together forming a space between 图the cavity and core which is the impression.Sprue bush: During the injection processplastic material is delivered to the nozzle of themachine as a melt; it is then transferred to theimpression through a passage. ③In the simplestcase this passage is a tapered hole within a bush as shown in Figure 1. 2. The ma- terial in this passage is termed the sprue, and the bush is called a sprue bush.Runner and gate systems: The material may be directly injected into the im- pression through the sprue bush (Figure 1. 2) or for moulds containing several impressions（multi-impression moulds) it may pass from the sprue bush hole through a runner and gate system ( Figure 1. 3 ) before entering thePage 1 图图impression. ④Register ring:If the material is to pass without hindrance into the mould the nozzle and sprue must be correctly aligned. To ensure that this is so the mould must be central to the machine and this can be achieved by including a register ring (Figure 1.4).⑤图Guide pillars and bushes：To mould an even-walled article it is necessary toPage 2ensure that the cavity and core are kept in alignment. This is done by incorpora-ting guide pillars on one mould plate which then enter corresponding guide bu-shes in the other mould plate as the mould closes. ⑥An example with guide pil-lars mounted on the core side and corresponding guide bushes in the cavity side isshown in Figure 1. 4. The size of the guide pillars should be such that they main-tain alignment irrespective of the applied moulding force; this they are normallyable to do. All the constituent parts of the basic mould have now been describedand a cross-section drawing of the assembled mould illustrated (Figure 1. 4).Fixed half and moving half: It can be seen (Figure 1. 2) that the variousmould parts fall naturally into two sections or halves. Hence, that half attachedto the stationary platen of the machine (indicated by the chain dotted line) istermed the fixed half.The other half of the mould attached to the moving paltenof the machine is known simply as the moving half. ⑦Now it has to be decided inwhich of the two halves the cavity or core is to be situated. Generally the core issituated in the moving half and the overriding reason why this is so, is asfollows:The moulding, as it cools will shrink on to the core and remain with it as themould opens. This will occur irrespective of whether the core is in the fixed halfor the moving half. ⑧However，this shrinkage on to the core means that someform of ejector system is almost certainly necessary. Motivation for this ejectorsystem is easily provided if the core is in the moving half. Moreover, in the caseof our single-impression basic mould, where a direct sprue feed to the undersideof the moulding is desired the cavity must be in the fixed half and the core in themoving half (Figure 1. 2).New Words and Expressionsimpression 模腔integer 整体的female 凹陷的sprue bush 主流道衬套，浇口套inject 注射，注塑fixed half 定半模core 型芯stationary platen 固定模板shrinkage 收缩Multi-impression 一模多腔runner 分流道guide pillar 导柱feed 进浇moulding 塑件Page 3male 凸出的insert 镶块cavity型腔register ring 定位环bolster 支撑moving half 动半模sprue 主流道single-impression 一模一腔gate 浇口keep in alignment 对中，对齐nozzle注塑机喷嘴guide bush 导套Notes①The injection mould is an assembly of parts containing within it an 'im-pression' into which plastic material is injected and cooled. It is the impressionwhich gives the moulding its form. The impression may. therefore. be definedas that part of the mould which imparts shape to the moulding. 注塑模是一些零件的组合，其中包含了一个型腔。
模具专业英语Unit1(1)
Overview
陈显冰
1.1 The injection molding
Injection molding is a method of producing plastic parts. This is done with an injection molding machine. The shape of the part to be injection molded is controlled by the geometry of the injection mold. The injection molding machine has two basic parts; the injection unit, which melts the plastic and then injects or moves it into the mold, and the clamping unit, which holds the injection mold. 注射成型是生产塑料部件的方法。他由注塑机来完成。注塑成型的部件形状受 到注塑模具的几何形状控制。注塑机有两个基本部分；注入装置，它可融化塑 料，然后把塑料注入或移动至模具中，锁模装置，它可夹住注塑模具。
choice of thermoplastic materials providing a variety of useful properties; It is possible to mold threads, undercuts, side holes, and large thin sections.
混合物依次输送到计量区和熔化区，然后再注射到模具型腔中，经过
短时冷却后，开模，推出成型塑件。注塑机分为手动、半自动及全自动 操作。注塑模具有以下优点：较高的成型速度使大批量生产成为可能； 为成型具有不同使用性能的热塑性材料提供了较宽的选择；可以成型带 有螺纹的塑件、侧向凹陷的塑件、带有侧孔的塑件以及较大的薄壁件。
模具相关基础英语培训技巧复习课PPT课件
刚性限制器 stop/distance block
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抬料架
lifter
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吊耳
lifting hook
[lɪftiŋ] [hʊk]
第10页/共27页
lightening hole 减重孔 ['laɪt(ə)niŋ] [həʊl]
废料
scrap
[skræp]
冲孔
pierce
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冲孔废料
slug
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侧修边
CAM
trim
第6页/共27页
[kæm] [trɪm]
机床废料坑
侧冲孔 CAM pierce [kæm] [pɪəs]
scrap opening [skræp] ['əʊp(ə)nɪŋ]
切开 separate ['sep(ə)rət]
制件定位件 part locator
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传感器定位 sensor gage
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粗定位 rough gage
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第16页/共精27定页位 target gage
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凹模 die [daɪ]
字码
简易模 prototype die
铆合模 riveting die
复合模 compound die
料带
strip
['kɑːstɪŋ] [daɪ] 折弯模
塑料模具专业英语32页PPT
Unit One Mold Constructions
Unit One Mold Constructions 模具结构
2.Basic Mold Construction （1）Operating Principle Basically the injection mold consists of two halves. One
mold half contains the sprue bushing and runner system， the other half houses the ejection system. The molded part is located at the parting line（ref. To DIN 16700）.
For ease of construction and to lower manufacturing cost， injection molds are becoming standardized. Some firms offer ready -made bases of square or round design as standard or stripper plate molds for immediate use. Only the inserts then have to be fitted into the bases.
Unit One Mold Constructions
1 Passage One Plastics Forming and Molds 第一段 塑料成型与模具 1.General [ ‘dʒenərəl ] 一般,大体 ,概要
《塑料模具专业英语》幻灯片
on对，依赖
Unit One Mold Construction模s 具结构
Efficient production of the most diverse injection -molded parts depends primarily on the injection
mold.
高效率地生产各类注射成型零件首先取决于注射模具。 diverse [ dai'və:s ] a. 不同的, 多种多样的
Unit One Mold Constructions
（2） Single or Multicavity Molds
To set up a calculation conceiving the choice of cavities in an injection mold requires accurate knowledge of the material to be processed， of the injection -molding machine and of the molds.
（2T）h单e 型m腔o注ld射c模o具s及ts多in型c腔re注a射s模e 具with the rising number of cavit注ie射s模a具n型d腔th选e择r等e设la计ti计ve算m要求ac掌h握in加e工c材o料st、s注d射ec机r和ea模s具e.等方面的准
The durability of the molds depends on their care and trea Since the moving components and cavity of the mold are a
hardened and ground ， they should produce between 50