注塑英语大全

注塑英语大全成型工艺流程及前提介绍Molding technique procedure and parameter introduction第一节成型工艺Section 1 molding technique.1.成型工艺参数类型Sorts of molding parameter.(1).注塑参数ction parameter. a.打针量ction rate.b.计量行程Screw back positionc.余料量Cushiond.防诞量Sucking back ratee.螺杆转速Screw speedf.塑化量Plastic0 rateg.预塑背压Screw back pressureh.打针压力和保压压力ction pressure and holding pressurei.打针速度ction speed (2)合模参数Clamping parametera.合模力Clamping forceb.合模速度Clamping speedc.合模行程.Clamping stroked.开模力Opening forcee.开模速度Opening speedf.开模行程Opening positiong.顶出压力Ejector advance pressureh.顶出速度Ejector advance speedi.顶出行程Ejector advance position2.温控参数Temperature parametera.烘料温度Dry resin material temperatureb.料向与喷嘴温度Cylinder temperature and nozzle temperaturec.模具温度Mold temperatured.油温Oil temperature3.成型周期Molding cyclea.轮回周期Cycle timeb.冷却时光Cool timec.打针时光ction timed.保压时光Holding pressure timee.塑化时光Plant timef.顶出及逗留时光Knocking out and delay timeg.低压呵护时光Mold protect time成型工艺参数的设定须根据产品的不合设置.Molding technique parameter setting differs depending on type of product第二节成型前提设定Section 2 Molding parameterSetting 按成型步调:可分为开锁模,加热,射出,顶出四个进程. Molding steps: mold opening/closing, heating ction and knocking out. 开锁模前提: Mold openingparameter: 快速段中速度低压高压速度High-speedmid-speed Low pressure high pressure speed 锁模前提设定: Mold closing parameter setting 1锁模一般分:快速→中速→低压→高压Mold closing: high-speed →low-speed →low pressure→high pressure 2.快锁模一般按模具情形分,假如是平面二板模具,快速锁模段可用较快速度,甚至于用到特快,当用到一般快速时,速度设到55-75%,完整平面模可设定到80-90%,假如用到特快就只能设定在45-55%,压力则可设定于50-75%,地位段视产品的深浅(或长短)不合,一般是开模宽度的1/3. In high-speed section, Mold closing speed depends on type of mold. For two –plate mold it can set quick and even especially quick usually, it set speed within 55-75%. For full-plate mold it set speed within80-90% while using especially high speed it set speed within 45-55% and pressure within 50-75% position distance setting differs depending on the volume of product and usually it can be set 1/3 of mold opening position. 3.中速段,在快速段停止后即转换成中速,中速的地位一般是到模板(包含三板模,二板模)合在一块为止,具体长度应视模板板距离,速度一般设置在30%-50%间,压力则是20%-45%间. In mid-speed section: Mold closing speed changes into mid-speed after high-speed section finish. Mid-speed start position is where two plates meet (include three-plate mold and two-plate mold ) Distance of mid-speed is up to distance of two plates plate it speed within 30-50% and pressure 20-45%. 4.低压设定,低速设定一般是在模板接触的一刹时,具体地位就设在机台显示屏显示的一刹时的数字为准,这个数字一般是以这点为尺度,,即于此点则起不了高压,高于此点则大,随意马虎起高压.设定的速度一般是15%-25%,视乎不合机种而定,压力一般设定于1-2%,有些机则可设于5-15%,也是视乎不合机种不合. Low-pressure section: Mold closing sets low-pressure when plates meeting. This position is set to the data of machine screen on this time. This point is the gage of the data. Data lower the point there is no high-pressure. Data higher the point there is high-pressure easily. It set speed within 15-25% and pressurewithin 1-2% depending on type within 1-2% depending on type of ction molding machine. 5.高压设定,按一般机台而言,高压地位机台在出厂时都已作了设定,相对来讲,是不成以随意更改的,比方震雄机在50P.速度相对低压略高,大约在30-35%阁下,而压力则视乎模具而定,可在55-85%中取,比方完整平面之新模,模具排气优越,甚至于设在55%即可,假如是滑块较多,本来临盆时毛边也较多,甚至于可设在90%还略显缺少. High-pressure section: To normal ction molding machine, high-pressure position had been set before they were sent to customer. It can not be modified. For example high-pressure position of CHENHSONG machine is 50P.The speed of high-pressure section is about 30-35% and higher than that of low-pressure. The pressure is up to mold, it can set within 55-85% Forfull-plate mold, it’s eject air well, it can set pressure 55% .If mold has a lot of slides and flash rate high in production, pressure can set 90%. 加热工艺前提设定Heating techniqueparameter setting 1.加热段温度设定必须按照产品所运用的原料的不合而不合,但却必须遵守一个如许的规矩,即由射口筒到进科段温度是慢慢递减的.且递减温度是以10.度为单位. The proper temperature setting differs depending on type of resin material, but it must be abide by a rule that temperature setting should diminish in step 10.C from nozzle to feeding resin material position. 2特别情形下.如料头抽丝,则射口筒温度应降低,假如是比较特别的原料冷凝比较快的.则射口筒温度则不止比第二节法兰温度高10度.比方PPS.尼龙等. Nozzle temperaturesetting should low if product line. If resin material suchas PPS, PA, cool very soon , Nozzle temperature should higher more 10.C than the second cylinder temperature. 3.机台马达启动温度视乎机台不合而不合,一般出于对机台油路中的油封呵护须要,油温最好能掌握在40度-60度,以免油封长期高压而变更,缩短运用寿命,造成成型不稳固. Pump turning on temperature is different depending on type of ction molding machine. To protect oil seal of machine it setoil temperature within 40.C-60.C, If oil seal work on condition that high pressure and damaged It’s work time will be shorter, it can cause molding stable.第三节打针及熔胶(加料)工艺前提设定 ction and plastic Technique parameter setting 一.打针 ction第四节罕有塑料原料的有关温度值.原料Resin名称Name熔点℃Melt’s成型温度℃Molding Temperature(’c)分化温度℃Decomposing Temperature(‘C)模具温度℃Mold Temp erature(‘c)湿润温度℃Resin dry temperature(‘c)打针是把塑料原料经加热后射进模腔的进程,它一般可分为第一级,第二级,第三级,第四级及保压几段: ction is a step which ct melt resin material into mold. It consists of stepl,step2 ,step3,step4 and holding pressure step: 1.第一级打针一般是打针料头段.具打针量一般可根据料头的轻重来估量其行程,当然也可以根据公式来盘算,如公式: Step l cts usually tunnel material, ction Volume can be estimated according to the weight of course it can be calculated by formula: L=Si=Vi/0.785Ds2 L:打针行程; Si:打针行程; L: ction stroke Si: ction stroke Vi:理论打针容积; Ds:螺杆直径; Vi: ction volume of theoretical Ds: diameter of screw 0.785:是Ω/4的值. 0. 785: value ofΩ/4.当然,假如我们在成型时每设定一个参数都要盘算一次,要成型出一个产品就要几个小时才干完成了. But it cost a lot of time to produce one product if every time molding parameter is setting by calculation. 2.第二级是注塑产品约2/3的阶段,当然,根据产品特别须要,也许可成型不到2/3阶段,比方防止联合线问题,这一阶段的成型速度及压力一般是全部成型段的最大值段,假如排的产品与机台根本是相吻合的.模具构造合理,排气优越,这一段的压力一般也不会超出80%.速度侧视产品需变,可能大到95%也可,天然一般都是在55%-80%间. Step 2 ct 2/3 of product. It can lower 2/3 of product according to requirement of product. For example to prevent weld line. Molding speed and pressure on this step is the maximum of whole molding section. If Mold suit the ction molding machine and mold structure reasonable and eject air well,pressure of this step should lower 80%. Molding speed setting within 55-80% but it may setting 95% for especial product. 3.第三段是打针余下的1/3段,其速度和压力根据产品的须要,一般是小于第二段,速度和压力消失于一个往降低的进程.主如果为了防止产品毛边的产生,但同时又必须把产品充填饱满. Step3 ct remain 1/3 of product. According to product molding speed and pressure lower than that of step2 To prevent flash speed and pressure should decrease but it can’t shot short. 4.第四段:一般有机台还有第五,第六段,这段的成型速度和压力雷同前,都消失两段一个递减进程.其感化都是起到一个再次充满的感化. Step4 section: Some ction machines have step5,step6 which are same as former molding speed and pressure this step should diminish and ct once more. 5.保压段:不管成型什么产品,都消失一个保压进程.任何产品都不合程度的消失一个厚薄不一的问题,正常情形下,较厚的部分都可能消失一个压缩凹陷的现象,为懂得决这种现象,就应运用到保压,保压一般来讲都运用较慢的射速,而压力的设置则应看缩水的情形若何,小到25%,大到80%都有可能. Holding pressure step: No matter what product there is a holding pressure step. Any product can’t molding a same thickness. Usually the deeper section may sink mark . To prevent this defect it should set holding pressure, The ction speed of holding pressure step is slow but holding pressure setting within 25-80% depending on sink mark. 二.熔胶段工艺Plastic Technique 1.再庞杂的熔胶扭转进程最多不会超出三段,因为熔胶本身就是消失于把胶熔进料筒的进程,假如原料粘度大,熔胶压力则大,但速度则应取决于原料的分化温度,熔胶速度越快,原估中的剪切力则会越大,料管温度则越高,局部原料产生分化的可能性则会越大,故一般熔胶会采取中速为宜,如45%-75%,熔胶同时会碰着一个比较重要的环节,那就是背压的运用,产品精度请求越大,背压的运用则更大,背压可使原料分子间构造更慎密,成型出的产品则尺寸更稳固,外不雅越好.当然,背压太大,则会产生流涎,所以背压的运用又应考虙到其它原因. Plastic should lower 3 steps, because plastic is a step to add melt resin material to cyclinder , Higher stick of resin material ,higher screw back pressure. Screw speed differs depending on decomposing temperature of resin material ,Higher screw speed ,Higher trim force of resin, higher cyclinder temperature. Some resin material may decomposes so it set screw speed in mid-speed such as 45-75%, In plastic step setting screw back pressure is very important, Higher screw back pressure ,higher quality of product screw back pressure make resin structure order, Molding product is beautiful and volume stable. But ,it maybe flow if screw back pressure too high . So all factors should be considered when using screw back pressure. 2.熔胶进程还有一个比较重要的环节,那就是松退,松退分前松退和后松退,其感化一般是为了防止流涎和抽丝,设定值速度和压力都在20%-50%间,设定的行程一般在2-5cm间,太长的行程可能会使料筒里面贮存空气,导致下一模消失不期望的气泡. In plastic step sucking back is very important too. Sucking back include front sucking back and back sucking back It setting sucking back to prevent flow and line. It sets sucking back speed and pressure within 20-50% and distance within 2-5cm. TOO long distance make cyclinder reserve air and cause bubble at next molding. 顶出的工艺设定knocking out technique setting 产品经冷却定型后则有一个开模的进程,开模根本上是合模的反进程.开模的未段则有一个慢速设置,开模完成后,产品必须顶出的进程. There is a mold opening step after product cooling taking shape. Mold opening is a reverse step of mold closing. The last step of mold opening speed set slow. Product should be knocked out after mold opened. 一.顶前: Knocking out 顶前最好分两个阶层,第一阶可分为中压慢速,等于把产品轻轻顶出一部分,然后是中压中速顶,中压中速一般指的是35%-55%,而低速则有可能低到5%,这需视产品不合而言,顶出行程设定是顶出长度稍比产品垂直深度大1-2cm即可. Knocking out includes two steps, Step1 section setting mid-speed, knocks product out partly step2 section setting mid-pressure and mid-speed . Depending on different product, mid-pressure and mid-speed sets within 35-55% but low-speed can set 5%. Distance of knocking out longer 1-2cm than the vertical thickness of product.二.退针Back 顶退包含两个进程与顶落的进程根本一致,顶退的终点应预留1-3cm的空间,以呵护顶针油管不被顶坏. The same as knocking out, ejector back includes 2 steps. To protect the ejector oil jar, it should make a 1-3mm distance in the ending point of ejector back. 三.顶针方法还包含一个多次顶,单次顶及顶针逗留的选择,机械手取产品,脱模顺遂的情形都采纳多项,为了顶针油缸寿命的延伸,多次顶就以不超出三次为宜,顶针逗留一般用在顶针带着产品退回有可能对增品产生毁伤的模具,同时为合营机械手运用,有时也须要较短的顶针逗留. The way of knocking out includes knocking out once, Knocking out repeat and ejector delay. Take product by manipulator or take product easy, itshould select knocking out once. To longer the work time of ejector oiljar, times of knocking out lower 3 times. Ejector delay used when product will be damaged if ejector back or suit manipulator. 成型时光的设定Molding time setting 在包管产品德量的前提下,周期时光是越短越好,周期时光又包含如下几项:射胶时光,保压时光,熔胶时光,冷却时光,顶出时光,锁模低压时光,甚至乎关系到时光身分的还有还开模与锁模,及顶出的快慢. Cycle time should shorter on condition that product quality well. Cycle time includes: ction time , holding pressure time, plastic time, cure time, knocking out time and mold protect time. Even mold opening closing sopeed and knocking out speed affect cycle. 1.射胶时光包含保压时光,一般看起来,射胶时光越长,产品越饱和,但我们在讲究质量时,同时也须斟酌产能,更况且,射胶时光过长,有可能会造成产品过于饱满而寻致粘模顶的变形呎寸偏大等一系列问题,故我们在设置射胶时光时应分解斟酌,尽量在合乎质量请求时缩短射胶时光. ction time consists holding pressure time. Longer ction time, fuller product, we should consider production quantity when we suit for quality. If ction time too long, it may cause a series of defects suck as flash strain. So all sorts of factors should be considered, ction time should be shout if quality suit for requirement. 2.熔胶时光的长短取决于熔胶速度设定的快慢,背压设定的大小,但有一点,熔胶时光掌握的长短必定要比冷却时光短. Plastic time depends on plastic speed and screw back pressure, but plastic time must shorter than cure time. 3.冷却时光:冷却时光的长短直接影响到成型的周期,冷却时光越长,成型时光就越长,造成产能就越低,故我们在设定高压冷却时光时,只要能包管到产品成型顺遂,不会直接影响到变形等问题,设定的时光也是越短越好. Cure time: Cure time affects molding cycle. Longer cure time, longer molding cycle, lower production quantity. So it sets cure time short on condition that product molding succed and can’t deformation.. 4.在大量运用机械手的塑胶公司,我们的顶出时光一般是与机械手合营为宜,全主动运用机械手时顶出逗留时光一般保持秒,半主动临盆,如因顶针退回会导致产品失落落或卡紧,而取不下产品,逗留时光则应保持5秒阁下. In PCE company, for using manipulator in abundence , knocking out time suits manipulator, Knocking out delay keeps 1.5-2 second when using manipulator full-manipulator, knocking out delay keeps about 5 second when using manipulator semi-manipulator and product will fall or can’t be taken off if ejector back. 5.低压呵护时光对呵护我们人身安然,模具安然起很大感化,合营好模具低压地位和低压压力的调剂,低压呵护的时光应取1-3秒,呵护时光越短,可能造成的伤害则越小. Low-pressure protect is very important for safety and protect mold, Mold protect time should adjust within 1-3 second suit low pressure and position of mold protect, shorter protect time, make damaged。