仪表壳注射成型工艺CAE分析  

CAE Analysis of Instrument Shell Plastic Injection Molding

作　　者：王飞[1] 顾楠[1] 魏大忠[2] 曹正凯[1] 扈翔 

机构地区：[1]北京邮电大学自动化学院,北京100876 [2]北京控制工程研究所,北京100190 [3]公安海警学院电子技术系,浙江宁波315801

出　　处：《工程塑料应用》2015年第11期59-62,共4页Engineering Plastics Application

摘　　要：针对聚碳酸酯(PC)/丙烯腈–丁二烯–苯乙烯塑料(ABS)仪表壳在实际生产中废品率较高的问题,采用Pro/E对仪表壳进行三维造型,并基于MPI软件对其注射成型过程进行分析模拟,得到包括充填、流动、保压、冷却、翘曲及最佳浇口位置、熔接痕位置、气穴位置、流动时间、保压时间、冷却时间和温度分布等信息。对浇注系统进行优化分析,获得最佳的浇口方案;对影响冷却系统冷却效果的多种因素用控制变量法逐一分析,得到相应的优化方案;以翘曲变形量为目标,采用多因素正交试验法进行翘曲变形分析,比较了不同熔料温度、保压压力、冷却时间条件下,PC/ABS仪表壳翘曲变形量的变化情况,最终得到了优化的工艺参数组合,提高了仪表壳的生产成功率。Due to the high rejection rate of polycarbonate（PC）/acrylonitrile butadiene styrene plastic（ABS） instrument shell in the actual production, Pro / E was used to make three-dimensional modeling of the instrument shell. Based on MPI software for analysis of its simulation of the injection molding process, including filling, flow, holding pressure, cooling, warpage, the best location of the gate, location of welding marks, location of cavitations, flowing time, holding pressure time, cooling time, temperature distribution and other accurate information was got. The gating system was optimized and the best gate project was got. The factors affecting the cooling system cooling effect were analyzed one by one by controlling variable method and the corresponding optimization programs was obtained. The orthogonal test method was used to analyze the warping deformation, the change of the warping deformation of PC / ABS instrument shell under different conditions of melt temperature, holding pressure, cooling time was compared. Finally, the optimized combination of process parameters of the shell was got, the success rate of the meter shell production was improved.

关 键 词：MOLDFLOW 注射成型 浇注系统 冷却系统 翘曲变形 工艺参数优化 

分 类 号：TQ320.66[化学工程—合成树脂塑料工业]