基于数值模拟的气体辅助注射成型工艺控制研究  

RESEARCH ON PROCESS CONTROL OF GAS-ASSISTED INJECTION MOLDING BASED ON NUMERICAL SIMULATION

作　　者：张响[1] 董斌斌[1] 王利霞[1] 李倩[1] 申长雨[1] 

机构地区：[1]郑州大学橡塑模具国家工程研究中心,郑州450002

出　　处：《工程塑料应用》2004年第6期30-33,共4页Engineering Plastics Application

基　　金：国家 8 63项目 ( 2 0 0 2AA3 3 612 0 ) ;国家自然科学基金资助项目( 10 3 72 0 95 )

摘　　要：基于广义Hele-Shaw流动模型描述了气体辅助注射成型时气体的穿透过程。采用有限元 /有限差分 /控制体积法计算充填阶段的压力场、温度场 ,确定熔体前沿和气熔界面 。The gas penetration in the process of gas assisted injection molding is presented by generalized Hele Shaw flow model. Finite element/finite difference/volume control method is used to calculate the pressure and temperature fields in the stage of filling, and to simulate the melt advanced front and the melt gas interface. Moreover, a part was used as a sample to analyze how the process parameters influence the quality of part made by gas assisted injection molding.

关 键 词：气体辅助注射成型 数值模拟 工艺控制 气体穿透过程 熔体充填阶段 一次穿透 二次穿透 

分 类 号：TQ320.664[化学工程—合成树脂塑料工业]