Scale-up in the design of extrusion dies

被引：2

作者：

Potente, H ^{[1
]}

Kramme, S ^{[1
]}

机构：

[1] Univ Paderborn, Inst Kunststofftech, KTP, D-33098 Paderborn, Germany

来源：

MACROMOLECULAR MATERIALS AND ENGINEERING | 2002年 / 287卷 / 11期

关键词：

extrusion; modeling; plastics; polyethylene; viscoelastic properties;

D O I：

10.1002/mame.200290003

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The similarity theory and the scale-up procedure developed from it make it possible to convert a technical-physical process from one scale to another - generally in the upwards direction. In the design of extrusion dies with an annular die gap, the die is broken down into basic geometric elements, and scale-up rules are then drawn up for the individual elements. In this project, scale-up rules were found that satisfy both full and partial similarity. The pseudoplasticity and elasticity of the melt were also taken into consideration. A comparison of the model laws obtained with the results of finite element calculations showed good conformity between the models and the production versions.

引用

页码：745 / 749

页数：5