PVC-PSG管道接头穿孔成因分析与对策研究  

Cause analysis and countermeasure research on perforation of PVC-PSG pipeline joint

作　　者：陈卫[1] 冀雄[1] 林受平[1] 李金国[1,2,3] 

机构地区：[1]永高股份有限公司,浙江台州318020 [2]台州职业技术学院模具研究所,浙江台州318000 [3]浙江大学机械学院,浙江杭州310027

出　　处：《模具工业》2016年第4期15-18,24,共5页Die & Mould Industry

基　　金：台州职业技术学院校级重点课题项目(编号2015ZD10)

摘　　要：为解决PSG管道接头注射成型后放置一段时间后在塑件的浇口区域出现穿孔的问题,借助Mold-flow软件对PVC-PSG管道接头的初始成型方案进行模拟分析,发现浇口区域存在较大的收缩率,导致应力集中而穿孔。通过改进浇注系统结构,并重新进行数值模拟,结果表明浇口的收缩率明显降低。In order to solve the perforation problem in gate area of PSG pipeline joint after demoulding a period of time, the initial forming scheme of the PVC-PSG pipeline joint was simulated by Moldflow. The results showed that the big shrinkage was appeared on the gate area, which led to stress concentration and perforation. Through improving the gating system and numerical simulation again, the shrinkage rate was significantly lower than be- fore.

关 键 词：PVC-PSG管道接头 注射成型 穿孔 数值模拟 

分 类 号：TG241[金属学及工艺—铸造] TQ320.66[化学工程—合成树脂塑料工业]