气体辅助注塑成型带加强筋平板的翘曲试验研究  

Experimental Study on Warpage of Flat Part with Reinforced Rib by Gas-assisted Injection Molding

作　　者：蒋志辉[1,2] 李倩 郑国强[1,2] 王军锋[1,2] 

机构地区：[1]郑州大学材料科学与工程学院,河南郑州450002 [2]国家橡塑模具工程研究中心,南郑州450002

出　　处：《塑料科技》2009年第7期73-76,共4页Plastics Science and Technology

基　　金：国家自然科学基金(50803060);中国博士后基金(20080430866)资助项目

摘　　要：注塑制品翘曲变形是一种严重缺陷,本文基于带加强筋平板制品实验研究了气体辅助注塑成型工艺参数对制品翘曲的影响规律及其原因,结果表明:熔体预注射量、气体压力及气体保压时间和气体压力清零时间对制品翘曲影响较大。熔体温度、延迟时间和保压压力影响较小。Warpage of injection molded parts is a kind of serious defect. The effect of the processing parameters of gas-assisted injection molding on the warpage was investigated by means of the experiment of flat part with reinforced rib. The results showed that the melt shot size, gas pressure, gas packing time and gas venting time have great influence on the warpage of injection molded parts. But the melt temperature, delay time, and packing pressure have less influence on the warpage of injection molded parts.

关 键 词：气体辅助注塑成型 工艺参数 翘曲变形 

分 类 号：TQ320.662[化学工程—合成树脂塑料工业]