A PRACTICAL VERIFICATION OF A COMPUTER-SIMULATION FOR INJECTION-MOLDING APPLIED TO AMORPHOUS THERMOPLASTIC POLYESTERS

被引：2

作者：

AXTELL, FH

HAWORTH, B

机构：

[1] Department of Chemistry, Faculty of Science Mahidol U niversity, Bangkok, 10400

[2] Institute of Polymer Technology and Materials Engineering University of Technology, Loughborough

来源：

POLYMER-PLASTICS TECHNOLOGY AND ENGINEERING | 1991年 / 30卷 / 5-6期

关键词：

D O I：

10.1080/03602559108019212

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A comparison has been made between the pressure drops arising during injection molding as predicted by a simulation software package named SIMPOL(R) and as measured during molding trials conducted to study the effects of molding variables. The theory used to design the software has been reviewed and the operation described. The comparison was made using amorphous thermoplastic polyesters, PET and PCTG. The molding conditions used for the simulated trials were the same as those used in practical molding trials. The molding trials were conducted using a mold fitted with a cavity transducer and a machine fitted with a hydraulic pressure sensor. The simulation shows qualitative agreement to the observations made in practice. The difference in pressure drop values are attributed to the software's dependence on crystalline PET physical properties for calculations and an overestimation of the frozen layer thickness by the simulation model. Overall the simulation has been shown to be a pragmatic tool for the production engineer working in the thermoplastic injection molding industry.

引用

页码：441 / 452

页数：12