注塑成型工艺中的翘曲变形  

The warping deformation in injection molding process

作　　者：张红英[1,2] 欧阳八生 

机构地区：[1]南华大学机械工程学院,湖南衡阳421002 [2]湖南财经工业职业技术学院机械工程系,湖南衡阳421001

出　　处：《模具技术》2016年第3期46-51,共6页Die and Mould Technology

基　　金：衡阳市工业科技支撑计划项目(2014KG28);湖南省教育厅科学基金资助项目(06C721)

摘　　要：在注塑成型过程中不可避免地会产生短射、熔接痕、气穴、飞边、缩痕和翘曲变形等诸多缺陷,而翘曲变形是塑料制件最严重的成型缺陷之一。分析了塑料材料、模具结构和成型工艺条件对注塑制品翘曲变形的影响,指出通过对冷却系统、工艺参数的优化并结合计算机模拟技术,可以改善注塑件的翘曲变形。Some defects may occur inevitably in the injection molding process such as short shot,weld line,cavitation,flying edge,sink mark and warping deformation,among which warping is one of the most serious defects in plastic parts.In the paper,the influence of the plastic material,mould structure and the molding process conditions on the warping deformation are analyzed.It is pointed out that the warping deformation can be improved through the optimization of cooling system and the process parameters with the computer simulation technology.

关 键 词：注塑成型 翘曲 设计 优化 

分 类 号：TG241[金属学及工艺—铸造]