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模具注塑过程中产品缺胶及开裂现象的应对

来源:http://www.sdlqmj.com/ 日期:2022-08-02

塑胶产品生产时都会遇到产品注塑出来缺胶以及开裂的问题,今天山东模具制造厂家就为大家分析一下相关的应对方法,供大家参考使用。
During the production of plastic products, we will encounter the problems of lack of glue and cracking after injection molding. Today, Shandong mold manufacturers will analyze the relevant countermeasures for your reference.
模具注塑过程中产品缺胶
The product is short of glue during mold injection
原因一:料温,模温太低
Reason 1: the material temperature and mold temperature are too low
改善对策:是提高,料管温度和模具温度。
Improvement measures: increase the temperature of the material pipe and the mold.
原因二:喷嘴,进胶点尺寸太小。
Reason 2: the size of nozzle and glue inlet point is too small.
改善对策:适当加大喷嘴及进胶点。
Improvement measures: appropriately increase the nozzle and glue inlet point.
原因三:模具排气不良。
Reason 3: poor mold exhaust.
改善对策:可增开排气孔。
Improvement measures: open more exhaust holes.
原因四:喷嘴冷头或者堵塞
Reason 4: nozzle cold head or blockage
改善对策:可通过清除射嘴杂物,提高射嘴温度来解决
Improvement countermeasures: it can be solved by removing sundries from the nozzle and increasing the temperature of the nozzle
原因五:射出速度和压力不够
Reason 5: insufficient injection speed and pressure
改善对策:解决方法就是提高射速,射压。
Improvement countermeasures: the solution is to increase the shooting speed and pressure.
山东模具制造厂家
模具注塑过程中产品开裂
Product cracking during mold injection
(1)加工压力过大、速度过快、充料愈多、注射、保压时间过长,都会造成内应力过大而开裂。
(1) Too much processing pressure, too fast speed, more filling, and too long injection and pressure holding time will cause excessive internal stress and cracking.
(2)调节开模速度与压力防止快速强拉制件造成脱模开裂。
(2) Adjust the mold opening speed and pressure to prevent demoulding cracking caused by rapid strong drawing.
(3)适当调高模具温度,使制件易于脱模,适当调低料温防止分解。
(3) Appropriately increase the mold temperature to make the parts easy to demould, and appropriately reduce the material temperature to prevent decomposition.
(4)预防由于熔接痕,塑料降解造成机械强度变低而出现开裂。
(4) Prevent cracking due to low mechanical strength caused by fusion marks and plastic degradation.
(5)适当使用脱模剂,注意经常消除模面附着的气雾等物质。
(5) Use release agent properly, and pay attention to often eliminate the aerosol and other substances attached to the mold surface.
(6)制件残余应力,可通过在成型后立即进行退火热处理来消除内应力而减少裂纹的生成。
(6) The residual stress of parts can be eliminated by annealing heat treatment immediately after forming to reduce the generation of cracks.
以上总结是比较有代表性的方面,实际操作当中,可能还会有其它情况导致的注塑成型问题,具体根据实际情况解决。更多相关内容就来我们网站http://www.sdlqmj.com咨询吧。
The above summary is a representative aspect. In actual operation, there may be injection molding problems caused by other situations, which can be solved according to the actual situation. Come to our website for more relevant content http://www.sdlqmj.com Consult.

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