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1、注塑英文工艺名词注塑英文工艺名词成型工艺流程及条件介绍Molding technique procedure and parameter introduction第一節成型工艺Section 1 molding technique.1.成型工艺参数类型Sorts of molding parameter.(1). 注塑参数Injection parameter.a.注射量Injection 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
2、背压Screw back pressureh.注射压力和保压压力Injection pressure and holding pressurei.注射速度Injection 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
3、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.循环周期Cycle timeb.冷却时间Cool timec.注射时间Injection timed.保压时间Holding pressure timee.塑化时间Plant timef.顶出及停留
4、时间Knocking out and delay timeg.低压保护时间Mold protect time成型工艺参数的设定须根据产品的不同设置.Molding technique parameter setting differs depending on type of product第二节成型条件设定Section 2 Molding parameter Setting按成型步骤:可分为开锁模,加热,射出,顶出四个过程.Molding steps: mold opening/closing, heating injection and knocking out.开锁模条件:Mold o
5、pening parameter:快速段中速度低压高压速度High-speedmid-speedLow pressure high pressure speed锁模条件设定:Mold closing parameter setting1 锁模一般分: 快速中速低压高压Mold closing: high-speed low-speed low pressurehigh pressure2.快锁模一般按模具情况分,如果是平面二板模具,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%,完全平面模可设定到 80-90%,如果用到特快就只能设定在 45-55%,压力则可
6、设定于 50-75%,位置段视产品的深浅(或长短)不同,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
7、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,在快速段结束后即转换成中速,中速的位置一般是到模板(包括三板模,二板模)合在一块为止,具体长度应视模板板间隔,速度一般设置在 30%-50%间,压力则是 20%-45%间.In mid-speed section: Mold closing speed ch
8、anges 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瞬间,具体位置就设在机台显示屏显示的一瞬间的数字
9、为准,这个数字一般是以这点为标准,即于此点则起不了高压,高于此点则大,轻易起高压.设定的速度一般是 15%-25%,视乎不同机种而定,压力一般设定于 1-2%,有些机则可设于 5-15%,也是视乎不同机种不同.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
10、 there is no high-pressure. Data higher the point there is high-pressure easily. It set speed within 15-25% and pressure within 1-2% depending on type within 1-2% depending on type of injection molding machine.5.高压设定,按一般机台而言,高压位置机台在出厂时都已作了设定,相对来讲,是不可以随便更改的,比如震雄机在 50P.速度相对低压略高,大约在 30-35%左右,而压力则视乎模具而定
11、,可在 55-85%中取,比如完全平面之新模,模具排气良好,甚至于设在 55%即可,如果是滑块较多,原来生产时毛边也较多,甚至于可设在 90%还略显不足.High-pressure section: To normal injection 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 s
12、peed 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% For full-plate mold, its 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%.加热工艺条件设定Heati
13、ng technique parameter setting1.加热段温度设定必须按照产品所使用的原料的不同而不同,但却必须遵循一个这样的规则,即由射口筒到进科段温度是逐步递减的.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 1.C from nozzle to feeding resin mater
14、ial position. 2 特殊情况下.如料头抽丝,则射口筒温度应降低,如果是比较特殊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.比如 PPS. 尼龙等.Nozzle temperature setting should low if product line. If resin material such as 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同而不同,一般
15、出于对机台油路中的油封保护需要,油温最好能控制在 40 度-60 度,以免油封长期高压而变化,缩短使用寿命,造成成型不稳定.Pump turning on temperature is different depending on type of injection molding machine. To protect oil seal of machine it set oil temperature within 40.C-60.C, If oil seal work on condition that high pressure and damaged Its work time wi
16、ll be shorter, it can cause molding stable.第三节注射及熔胶(加料)工艺条件设定Injection and plastic Technique parameter setting一.注射Injection第四节常见塑料原料的有关温度值.原料Resin 名称Name 熔点Melts 成型温度Molding Temperature(c)分解温度Decomposing Temperature(C)模具温度Mold Temperature(c)干燥温度Resin dry temperature(c)注射是把塑料原料经加热后射进模腔的过程,它一般可分为第一级,第二级,第三级,第四级及保压几段:Injection is a step which inject melt resin material into mold. It consists of stepl,step2 ,step3,step4 and holding pressure step:1.第一级注射一般是注射料头段.具注射量一般可根据料头的轻重来估计
