三种销钉螺杆在不同工艺参数下混合能力的数值模拟  

The Numerical Simulation of Mixed Ability of Three Pin Screws under Different Process Parameters

作　　者：余忠[1] 柳和生[1] 黄兴元[1] 周献华[1] 

机构地区：[1]南昌大学机电工程学院,江西南昌330031

出　　处：《塑料》2011年第2期109-111,65,共4页Plastics

摘　　要：运用Polyflow软件对微孔塑料连续挤出成型中的销钉螺杆进行三维瞬态模拟,分别研究3种销钉螺杆在不同CO2浓度、不同流量及不同温度下的混合指数分布情况,得出了在低浓度、低流量、较高温度下,销钉螺杆对混合物料的混合能力最强,为今后在微孔塑料连续挤出成型实验提供理论依据。By using Polyflow software,3-D transient simulation had been made on pin screw during continuous extrusion of microcellular plastics, three pin screws were studied on mixing index distribution under different CO2 concentrations and different flow and different temperatures. The results showed that pin screw had best mixed ability to mixture under low concentration,low flow and high temperature, it could provide theory foundation for continuous extrusion experiment of microcellular plastics in the future.

关 键 词：销钉螺杆 工艺参数 混合指数 数值模拟 微孔塑料 

分 类 号：TP391.7[自动化与计算机技术—计算机应用技术]