螺旋芯棒薄膜机头的计算机辅助设计  

Computer Aided Design of Blown Film Die with Spiral Spreader

作　　者：占国荣[1] 周南桥[1] 

机构地区：[1]华南理工大学聚合物新型成型装置国家工程研究中心聚合物成型加工工程教育部重点实验室,广州510640

出　　处：《塑料》2003年第5期74-77,73,共5页Plastics

摘　　要：介绍了螺旋芯棒机头的工作原理以及影响其性能的因素。着重说明了如何用计算机辅助设计出分配效果好的模头,并且用计算机模拟出螺旋芯棒的几何结构参数对模头漏流分布的影响,此外还指出了材料的流动指数和理论计算的一些假设是造成实测的管膜料坯厚度公差小于理论计算结果的主要因素。Principle of blown film die with spiral spreader and factors affecting its properties are introduced.How to design blown film die with spiral spreader with good distribution through computer is stressed.Moreover,the effect of geometry parameters of spiral spreader on leakage flow distribution in the die was simulated.In addition,flow index of polymer and some assumptions in computing were found to be main factors that made the thickness tolerance of tubular film in measuring smaller than that in computing.

关 键 词：螺旋芯棒机头 计算机辅助设计 塑料加工 结构参数 吹塑成型 薄膜 

分 类 号：TQ320.52[化学工程—合成树脂塑料工业] TP391.72[自动化与计算机技术—计算机应用技术]