汽车左前门板热流道大型薄壁注塑模设计  

Design of large and thin⁃walled injection mold with hot runner for left⁃front door panel of vehicles

作　　者：张维合[1] 冯婧[1] 赵利平[1] 胥永林[1] 闫丽静[1] 费强 陶永杰 陈卓航 ZHANG Weihe;FENG Jing;ZHAO Liping;XU Yonglin;YAN Lijing;FEI Qiang;TAO Yongjie;CHEN Zhuohang(GuangDong University of Science&Technology,Dongguan 523000,China)

机构地区：[1]广东科技学院,广东东莞523000

出　　处：《中国塑料》2024年第12期143-147,共5页China Plastics

基　　金：2022年东莞市工程技术研究中心项目(20221600402242);2023年度广东科技学院校级项目(GKY-2023KYZDK-12)。

摘　　要：针对汽车左前门板的尺寸大小、结构特点和工艺要求,设计了一副大型薄壁顺序阀控制的热流道注塑模具。模具喇叭网孔成型零件采用粉末冶金透气钢,有效消除了喇叭网孔中填充不良和熔接痕等成型缺陷。模具采用倾斜式导滑槽,有效解决了倾斜式内侧倒扣脱模难题。模具采用由顺序阀智能技术控制的热流道浇注系统,有效解决了汽车左前门板尺寸大壁厚小熔体填充难题。模具采用快速且均衡温度控制系统,注射周期缩短了约8%,尺寸精度达到了MT3(GB/T 14486—2008)。In this study,a large injection mold with a sequential valve hot runner was designed for the left-front door panel of a vehicle,and the forming defects such as poor filling and fusion marks in the horn mesh were effectively eliminated by using the formed parts made of a type of powder metallurgy breathable steel.The problem in the inclined inner reverse buckle demold-ing was effectively solved by using an inclined guide groove.The difficulty in filling large mold cavities was effectively ad-dressed by using a sequential valve hot runner control technology.The injection cycle was shortened by about 8%,and the di-mensional accuracy reached the MT3 level(GB/T 14486—2008)by using a fast and balanced temperature control system.

关 键 词：汽车左前门板 大型注塑模具 顺序阀热流道 侧向抽芯机构 

分 类 号：TQ320.662[化学工程—合成树脂塑料工业]