PMMA/PVC表面复合异型材共挤出成型设计优化  

Design optimization for the coextrusion molding of the PMMA/PVC surface composite profile

作　　者：王其兵[1] 申一虎 刘新 

机构地区：[1]淮海工学院工程训练中心,江苏连云港222005 [2]中船重工第716所杰瑞模具技术有限公司,江苏连云港222005

出　　处：《功能材料》2014年第B06期151-154,共4页Journal of Functional Materials

基　　金：连云港市科技(工业)攻关基金资助项目(CG1308);江苏省海洋资源开发研究院开放基金资助项目(JSIMR201316)

摘　　要：聚甲基丙烯酸甲酯(PMMA)/聚氯乙烯(PVC)表面复合异型材(以下简称复合异型材)是通过共挤出模头成型,以共挤出模头出口处复合异型材截面上各子区域的流速相等为优化目标,以对流动均匀性有较大影响的压缩段间隙为设计变量,有限元数值分析模拟并和ERP系统及并行工程的CAD/CAE网络系统挤出模头专家数据库相结合,通过实例设计优化证明,优化后共挤出模头出口处复合异型材熔体各区域流速均匀性显著提高,复合异型材的型胚质量显著提高,其结构尺寸、性能完全符合要求。Polymethyl methacrylate（PMMA）/polyvinyl chloride （PVC）surface composite profile （hereinafter re-ferred to as composite profile）took the equal flow velocity of each sub-domain on the cross section of the com-posite profile at the outlet of the coextrusion die as the optimization target through coextrusion molding.The compression gap that had a huge influence on the flow uniformity was taken as the design variable.The finite el-ement numerical simulation was combined to the ERP system and expert database of the CAD/CAE network system extrusion die in the concurrent engineering.It was testified by the case design optimization that the flow velocity uniformity of each region in the composite profile melt at the outlet of the optimized coextrusion die has been improved greatly,the embryo quality of the composite profile has been improved,and its structure size,as well as the performance satisfies the demands well.

关 键 词：复合异型材 共挤出模头 设计变量 数值模拟 设计优化 

分 类 号：TB332[一般工业技术—材料科学与工程] TQ320.66[化学工程—合成树脂塑料工业]