冰箱门储物盒注塑成型模流分析及工艺优化  

Moldflow Analysis and Process Optimization for Injection Molding of Refrigerator Door Storage Box

作　　者：费晓瑜 刘新新 闫长飞 郑彦博 FEI Xiao-yu;LIU Xin-xin;YAN Chang-fei;ZHENG Yan-bo(Tianjin Vocational Institute,Tianjin 300410,China;COSMOPlat Moulds(Qingdao)Co.,Ltd.,Qingdao 266400,China;Shanghai Teknsoft Co.,Ltd.,Shanghai 202150,China)

机构地区：[1]天津市职业大学,天津300410 [2]卡奥斯模具(青岛)有限公司,山东青岛266400 [3]上海泰客诺信息科技有限公司,上海202150

出　　处：《塑料科技》2024年第6期126-131,共6页Plastics Science and Technology

基　　金：天津市职业大学校企合作项目(20210109)。

摘　　要：利用Moldflow对冰箱门储物盒的注塑成型过程进行仿真,对比两种不同浇口位置方案,通过增加壁厚优化了产品结构,确定了最佳的浇口位置。对阀针式热流道浇注系统和冷却系统进行模拟仿真,并进行成型窗口分析、填充分析、翘曲变形分析、熔接线和气穴分析,最终确定冰箱门储物盒注塑模具的最佳工艺组合方案为:模具温度40℃,熔体温度为220℃,注射时间为1.5 s。翘曲变形分析结果表明角效应是引起塑件开口处变形的主要因素,其变形量约为1.5 mm,优化冷却系统后翘曲变形量一侧为0.6 mm,另一侧为1.2 mm,相比优化前翘曲量分别降低60%和20%。该产品模流分析过程和工艺优化方案较为全面合理,可为其他表面光洁度要求较高的透明产品CAE仿真分析和工艺优化提供有益参考。Moldflow was used to simulate the injection molding process of the refrigerator door storage box.Two different gate position schemes were compared,the product structure was optimized by increasing the wall thickness,and the best gate position was determined.The simulation of the valve needle hot runner pouring system and cooling system was carried out,and the molding window analysis,filling analysis,warpage deformation analysis,fusion marks and porosity analysis were carried out.Finally,the optimal process combination scheme for the injection mold of the refrigerator door storage box was ultimately determined to be mold temperature of 40℃,melt temperature of 220℃,and injection molding time of 1.5 s.The warpage deformation analysis results show that the angle effect is the major factor causing the deformation of the opening of the plastic parts,with a deformation amount of 1.5 mm,the warpage deformation amount is 0.6 mm on one side and 1.2 mm on the other side by optimizing the cooling system,which is 60%and 20%lower than the pre-optimized warping deformation,respectively.The process of moldflow analysis and process optimization plan for this product are relatively comprehensive and reasonable,which can provide useful reference for CAE simulation analysis and process optimization of other transparent products with high surface smoothness requirements.

关 键 词：储物盒 注塑成型 模流分析 工艺优化 

分 类 号：TQ320.66[化学工程—合成树脂塑料工业] TP391.7[自动化与计算机技术—计算机应用技术]