聚合物T型材挤出成型过程有限元模拟  

The Finite Element Simulation of Polymer Extrusion Process with "T" Profile

作　　者：秦升学[1] 赵国群[2] 牟玥 许星明[2] 

机构地区：[1]山东科技大学机电学院,山东青岛266510 [2]山东大学模具工程技术研究中心,山东济南250061

出　　处：《高分子材料科学与工程》2009年第3期154-157,共4页Polymer Materials Science & Engineering

基　　金：国家杰出青年科学基金资助项目(50425517);山东省自然科学基金资助项目(Y2007F59)

摘　　要：本文采用聚合物加工理论和有限元方法,建立了聚合物异型材挤出模拟的有限元模型,模拟了聚合物T型材挤出成型过程,获得了聚合物熔体在模具内的速度场、温度场、压力场和应力场分布,分析了模拟结果对成型过程的影响,预测了成型过程中可能出现的缺陷,给出了模具和工艺设计的合理化建议。模拟结果揭示了聚合物T型材挤出成型过程的一般规律,对于模具和工艺设计具有直接的指导作用;所建立的数学方法和获得的模拟结果对于聚合物异型材挤出具有通用的指导意义。Based on the theory of polymer process and finite element method, the FEM model of polymer profile extrusion was present in this paper. The polymer extrusion process with ＂T＂ profile was simulated, and the velocity, temperature, pressure and stress filed was obtained. The influence for process by simulation result was analyzed, and the possible deficiency was forecasted. The rational suggestion for die and process design was given. Simulation results describe the common extrusion process regularity with ＂T＂ profile, and can direct die and process design. The mathematic model and simulation results have general direct interesting for polymer profile extrusion process.

关 键 词：非牛顿流体 非等温 挤出口模 有限元 聚合物 

分 类 号：TQ320.663[化学工程—合成树脂塑料工业]