气辅成型工艺参数对气体穿透行为的影响  

Influence of Processing Parameters in Gas Assisted Injection Molding on Gas Penetration

作　　者：吴万旺[1] 姜少飞[1] 鲁聪达[1] 

机构地区：[1]浙江工业大学机械制造及自动化省部共建教育部重点实验室,浙江杭州310014

出　　处：《轻工机械》2009年第5期8-12,共5页Light Industry Machinery

基　　金：浙江省重大科技专项资助(2008C01059-1);浙江省重大科技专项资助(2006C11069)

摘　　要：通过对半圆形加强筋结构的模流分析,研究了气辅成型过程中工艺参数对气体穿透行为的影响规律,并着重考察了其中的气体二次穿透指标。结果表明:熔体预注射量和气体延迟时间是影响气体穿透行为的重要因素。熔体温度、气体延迟时间和模具温度,都是通过影响成型过程中熔体的粘度、流动性的变化而影响气体穿透行为的。Through the analysis of mo in semicircular reinforced structure, the influence rule of the processing parameters in gas assisted injection molding（GAIM） on gas penetration and focusing on gas secondary penetration index were studied. The result revealed that melt preinject volume and gas delay time were the important factors affecting the gas penetration behavior. The parameters, such as melt temperature, gas delay time and mold temperature, affected the changes of melt viscosity and flowability which could affect the gas penetration behavior.

关 键 词：气体辅助注塑成型 气体穿透 工艺参数 

分 类 号：TQ320.66[化学工程—合成树脂塑料工业]