基于正交试验与数值模拟的木塑异型材挤出机头流道设计方法  

Design Method of Die Runners for WPC Profiles Based on Numerical Simulation and Orthogonal Test

作　　者：赵峰[1] 薛平[1] 苗立荣[1] 刘天涛[1] 方晓钟 

机构地区：[1]北京化工大学机电工程学院,北京100029 [2]安徽国风木塑科技有限公司,安徽合肥230011

出　　处：《中国塑料》2010年第10期94-99,共6页China Plastics

基　　金：2009年北京市教委共建项目

摘　　要：建立了一种基于正交试验与数值模拟的木塑异型材挤出机头流道的设计方法,其主要原理是:在结合木塑复合材料流变行为的基础上,将异型材挤出机头流道的主要几何参数定义为正交试验因素,利用正交设计方法对这些几何参数进行试验安排;使用Inventor软件三维参数化尺寸驱动系统实现流道模型的迅速建立;通过专业计算流体力学有限元分析软件Polyflow完成机头流道内熔体的模拟计算和仿真分析;选择适当的评价标准对模拟结果进行正交优化,最终获得机头流道的合理参数。依据这种方法,对立柱木塑异型材进行了机头流道的设计,最终得到理想的设计结果。In this paper, a design method for a profile die runner was developed based on orthogonal test and numerical simulation. The procedure was as follows： the main parameters of the extrusion flow were defined as the experimental factors, a simulation model was formulated using Inventor software, and the situation of plastic melt flowing in the profile dies was simulated through Polyflow as a finite element analysis software. The appropriate criterion was selected to evaluate the results of orthogonal test and the parameters were optimized repeatedly, then the reasonable parameters were gained. Based on this method, colunm-sbaped extrusion die for wood-plastic composite was designed and optimized, and eventually the ideal design results were obtained.

关 键 词：正交试验 数值模拟 异型材 机头 流道 木塑复合材料 

分 类 号：TQ320.663[化学工程—合成树脂塑料工业]