摘要
针对耳罩圈注塑件填充不足和熔接痕的缺陷问题,本文从注塑模具浇注系统分析入手,找出存在的问题,制订出改正措施,并最终解决了这些缺陷问题;在针对使用一模六腔模具成型的护盖注塑件存在缩痕缺陷的问题,通过采用了控制流入模具型腔熔体量平衡的方法,最终达到了消除注塑件缺陷的目的;针对薄壁壳体注塑件变形等缺陷的问题,则采用了脱件板方式进行壳体的脱模,以避免其产生变形缺陷;针对注塑垫片填充不足和熔接痕等缺陷的问题,经分析可知其原因是因熔体料流的不均匀造成的,因此可通过合理优化浇口形式和数量的方案进行解决。
Aiming at the problems of insufficient filling and weld line in the injection molded parts of earmuff ring,this paper analyzes the injection mold gating system,finds out the existing problems,formulates the corrective measures,and finally solves these defects;Aiming at the problem of sink mark defects in cover injection molded parts using a six-cavity mold,by adopting the method of controlling the balance of the amount of melt flowing into the mold cavity,the goal of eliminating the defects of injection molded parts is finally achieved;In order to solve the problem of deformation and other defects of thin-walled shell injection molding parts,the stripping plate is used to demould the shell to avoid deformation defects;In view of the defects such as insufficient filling and weld line of injection molding gasket,it can be found that the reason is caused by the uneven material flow of the melt,so it can be solved by optimizing the form and quantity of gate reasonably.
作者
白英博
文根保
杨建世
Bai Yingbo;Wen Genbao;Yang Jianshi(Beijing Shiyi Desheng Technology Co.LTD.,Beijing 100083,China;AVIC Aerospace Life-Support Industries Co.LTD.,Xiangfan 441002,Hubei,China)
出处
《橡塑技术与装备》
CAS
2021年第2期55-59,共5页
China Rubber/Plastics Technology and Equipment
关键词
注塑件
成型
浇口
缺陷
解决方案
injection moldied part
molding
gate
defect
solution
