电源连接器注塑成型圆柱度优化研究  

Research on Cylindricity Optimization of Power Connector Injection Molding

作　　者：周堪培 ZHOU Kan-pei(Shunde Polytechnic,Foshan 528300,China)

机构地区：[1]顺德职业技术学院,广东佛山528300

出　　处：《塑料科技》2021年第12期90-94,共5页Plastics Science and Technology

摘　　要：为探究某电源连接器保护套圆柱度的工艺参数优化方案,基于高级浇口定位器,得到流动阻力、浇口匹配性结果,确定最佳的浇口位置为产品中部。初始工艺下圆柱度不满足要求,设计正交试验并分析。各工艺参数对前端圆柱度的影响程度排序为:模腔温度>料筒温度>充填压力>充填时间,对后端圆柱度的影响程度排序为:充填时间>模腔温度>料筒温度>充填压力。优化工艺参数组合为:料筒温度250℃,模腔温度75℃,充填压力40 MPa,充填时间0.4 s。优化工艺下前端及后端圆柱度分别为0.2071 mm、0.1796 mm,相比初始工艺分别降低45.7%、46.6%,且满足设计指标要求。通过模流分析及样品实测状态验证优化工艺的合理性。In order to explore the process parameters optimization scheme of the cylindricity of a power connector protection sleeve,based on the advanced gate locator,the flow resistance and gate matching results are obtained,and the best gate position was determined in the middle of the product.The cylindricity does not meet the requirements under the initial process.The orthogonal test was designed and analyzed.The influence degree of each process parameters on the front end cylindricity is as follows:mold cavity temperature>barrel temperature>filling pressure>filling time.The influence degree of each process parameters on the rear end cylindricity is as follows:filling time>mold cavity temperature>barrel temperature>filling pressure.The optimized process parameters are as follows:barrel temperature is250℃,mold cavity temperature is 75℃,filling pressure is 40 MPa and filling time is 0.4 s.The front end and rear end cylindricity of the optimized process are 0.2071 mm and 0.1796 mm,which are reduced by 45.7%and 46.6%respectively compared with initial process,and meet the design index requirements.The rationality of the optimized process is verified by mold flow analysis and sample measured state.

关 键 词：电源连接器 圆柱度 模流分析 正交试验 

分 类 号：TQ320.52[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]