气辅注射成型圆管制品中空率  

Effect of process parameters on hollow ratio of pipe part by gas-assisted injection molding

作　　者：董斌斌[1] 申长雨[1] 李倩[1] 刘君怡[1] 

机构地区：[1]郑州大学橡塑模具国家工程研究中心,河南郑州450002

出　　处：《化工学报》2007年第6期1587-1591,共5页CIESC Journal

基　　金：国家自然科学基金项目(10372095);河南省科技攻关项目(424290020)。~~

摘　　要：气体辅助注射成型的工艺参数与最后制件的中空程度有直接的关系。采用计算机模拟技术,分析了熔体温度、模具温度、气体延迟时间、预注射量和进气压力对中空率的影响。得到预注射量和进气压力对中空率的变化最为敏感;熔体温度升到一定范围后对中空率没有影响;对于圆管制件,气体延迟时间对中空率影响不明显的结论。The effects of processing parameters of gas-assisted injection molding （GAIM） on the hollow ratio of the pipe parts was studied. The process parameters, such as melt temperature, mold temperature, gas delay time, melt filled volume and gas pressure, were investigated by means of computer aided engieering （CAE） simulation. Numerical examples showed that the hollow ratio was sensitive to melt filled volume and gas pressure. Melt temperature and mold temperature had no influence on the hollow ratio when the temperature reached a specific range. Gas delay time did not have obvious influence on the hollow ratio.

关 键 词：气体辅助注射 中空率 工艺参数 一维圆管 

分 类 号：TQ320.66[化学工程—合成树脂塑料工业]