PTFE轴套零件注塑工艺参数优化及模具设计  

Injection Molding Process Parameter Optimization and Mold Design to Shaft Bush Parts Made of PTFE

作　　者：杜鹏辉 王蕴晴 谢传颖 李衡 王钧 李磊 王小新[1] Du Penghui;Wang Yunqing;Xie Chuanying;Li Heng;Wang Jun;Li Lei;Wang Xiaoxin(School of Polymer Science and Engineering,Qingdao University of Science and Technology,Qingdao 266042,China;Shandong Chongjin Auto Parts Co.Ltd.,Jinan 250100,China)

机构地区：[1]青岛科技大学高分子科学与工程学院,山东青岛266042 [2]山东崇锦汽车零部件有限公司,济南250100

出　　处：《工程塑料应用》2022年第12期56-60,共5页Engineering Plastics Application

基　　金：山东省研究生教育质量提升计划项目(SDYAL21102)。

摘　　要：针对以聚四氟乙烯(PTFE)为原料的重型卡车高耐磨自润滑轴套零件,利用模拟仿真软件Moldflow进行模流分析,通过正交实验方法对注塑成型工艺参数进行优化设计,得到了熔体温度420℃、模具温度160℃、保压压力60 MPa、保压时间15 s的优化工艺参数组合。对模具的浇注系统、滑块结构、顶出系统、冷却系统等进行优化设计,并对冷却效果进行仿真分析,确认了冷却系统的有效性。经过实际注塑生产和测试验证,生产出了合格的高耐磨自润滑轴套零件,可替代重型卡车中的金属轴套零件,助力汽车轻量化和节能减排。For the high-wear-resistant self-lubricating bushing parts of heavy-duty trucks made of polytetrafluoroethylene(PTFE)as raw material,the Moldflow software was used to simulate,and the injection molding parameters were optimized and designed by orthogonal experimental methods,and the optimal process parameters combination of melt temperature 420℃,mold temperature 160℃,packing pressure 60 MPa and packing time 15 s were obtained.The running system,slider structure,ejection system,cooling system,et al of the mold are designed,and the cooling effect is simulated,and the effectiveness of the cooling system is confirmed.After actual injection molding production and test verification,qualified bushing parts have been obtained,which can replace the metal bushing parts in heavy-duty trucks,helping to reduce the weight of the car and save energy and reduce emissions.

关 键 词：聚四氟乙烯 高耐磨自润滑 模拟仿真 正交实验法 

分 类 号：TQ320.66[化学工程—合成树脂塑料工业]