基于Moldex3d的薄壁复杂零件的注塑优化  

Injection molding optimization of thin-walled complex parts based on Modex3d

作　　者：黄岸 王齐龙 周洪福[2] 彭响方 HUANG An;WANG Qilong;ZHOU Hongfu;PENG Xiangfang(College of Materials Science and Engineering,Fujian University of Technology,Fuzhou 350118,China;College of Materials and Mechanical Engineering,Beijing Technology and Business University,Beijing 100048,China)

机构地区：[1]福建工程学院材料科学与工程学院,福州350118 [2]北京工商大学材料与机械工程学院,北京100048

出　　处：《中国塑料》2023年第6期59-65,共7页China Plastics

基　　金：国家自然科学基金项目(52203034);福建省自然科学基金项目(2020J05190);福建工程学院科研启动基金(GY-Z19048)。

摘　　要：以智能扫地机翻盖为例,使用Moldex3d模流分析软件对薄壁复杂型零件进行注塑优化分析,首先通过对比两浇口与四浇口两种进胶方式,得出较优进胶方式为两浇口进胶;再进行正交实验分析,得出最佳注塑工艺组合为保压时间7s,保压压力50%,熔体温度220℃,模具温度50℃。同时得出,影响制件翘曲变形的主次因素为保压压力、熔体温度、保压时间、模具温度。最后通过优化保压曲线,得到最佳的注塑工艺,制件的翘曲变形量由原来的2.482mm下降至1.369mm,降低了44.8%。Taking an intelligent sweeper clamshell as an example,the Moldex3d mold flow analysis software was used to optimize the injection molding of thin-walled complex parts.A two-gate mode was recommended for the better glue feeding method through comparing the two-gate and four-gate glue feeding methods.Based on the orthogonal experimental analysis,the optimal injection molding process combination was determined to be a packing time of 7 s,a packing pressure of 50%,a melt temperature of 220℃,and a mold temperature of 50℃.Meanwhile,the main and secondary factors affecting the warping deformation of the parts were determined as the packing pressure,melt temperature,packing time,and mold temperature.Through optimizing the packing pressure curve to obtain the optimal injection molding process,the warpage deformation of the parts was reduced by 44.8%from 2.482 mm to 1.369 mm.

关 键 词：薄壁复杂注射件 MOLDEX3D 正交实验 翘曲变形 保压优化 

分 类 号：TQ320.662[化学工程—合成树脂塑料工业]