注塑模腔塑料熔体流场流动路径分析  

Analysis of flowing paths of injection mold cavity in plastic melt

作　　者：祝铁丽[1] 王敏杰[1] 

机构地区：[1]大连理工大学模具研究所,辽宁大连116024

出　　处：《大连理工大学学报》2002年第2期200-203,共4页Journal of Dalian University of Technology

摘　　要：提出一种新的确定注塑成型充模阶段塑料熔体前沿位置的当量距离法 ;并按照流动路径与熔体前沿尽可能正交的原则将模具型腔划分为由浇口起始的若干条流动路径 ,将各条流动路径与不同时刻熔体前沿交织而成的网格用于注塑成型过程的数值模拟计算 。The equivalent distance method is put forward to determine polymer melt front advancement during injection molding. By making the angle between a flowing path and a melt front curve as big as possible, the mold cavity is divided into a number of flowing paths. The meshes produced by flowing paths and melt front curves are provided for numerical simulation of injection molding, and shrinkage rates of various points in a plastic melt are predicted.

关 键 词：注塑成型 熔体前沿位置 当量距离法 流动路径 注塑模 塑料熔体 流场 数值模拟 

分 类 号：TQ320.52[化学工程—合成树脂塑料工业]