模具技术Issue(2)：1-6,6.
基于Moldflow的90°大弧弯管注塑模具设计
Design of injection mould for 90° large arc bending pipe based on moldflow
摘要
Abstract
Aiming at the characteristics of uneven wall thickness and difficult demoulding of a 90° large curved pipe,a set of one mold and one cavity mold with curved core pulling mechanism of inclined guide column is designed.In order to improve the quality of plastic parts,Moldflow software was used to analyzed the filling time,flow front temperature,fuse connection,cavitation,cooling water temperature,warping deformation amount,etc.,The results show that the cooling system was reliable and relevant injection molding process parameters were obtained,that is,melt temperature of 190 ℃ and injection time of 3 s.The pressure holding time is 10 s,the clamping force is larger than 22.65 t,and the cooling water temperature is 25 ℃.Secondly,the mold structure is designed.It mainly includes the selection of parting surface,the design of pouring system,the design of cavity and the design of side core-pulling mechanism.Because it is difficult to pull out the core of plastic parts,a curved core pulling mechanism composed of inclined guide post,slide block,connecting rod,slide block seat and press plate is used to realize the side core-pulling of 90° high arc bend pipe.Through the analysis of Moldflow software,the mold structure can be optimized to improve the molding quality of plastic products.关键词
90°大弧弯管/塑料/模具设计/侧抽芯/成型分析Key words
90° large arc bend pipe/plastics/mold design/side core-pulling/forming analysis分类
化学工程引用本文复制引用
万琼,闫鸽,刘奥运,贾雄伟..基于Moldflow的90°大弧弯管注塑模具设计[J].模具技术,2025,(2):1-6,6.基金项目
西安交通工程学院中青年基金项目(编号:2023KY-11). （编号:2023KY-11）
