Modelling flow and heat transfer in co-rotating twin-screw extruders

被引：0

作者：

Teixeira, C. ^{[1
]}

Faria, R. ^{[1
]}

Covas, J. A. ^{[1
]}

Gaspar-Cunha, A. ^{[1
]}

机构：

[1] Univ Minho, Dept Polymer Engn, Inst Polymers & Composites, Campus Azurem, P-4800058 Guimaraes, Portugal

来源：

10TH ESAFORM CONFERENCE ON MATERIAL FORMING, PTS A AND B | 2007年 / 907卷

关键词：

modelling; polymer extrusion; co-rotating twin screw extruder;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This work presents a modelling routine of co-rotating twin-screw extrusion, from hopper to die. The program accounts for a sequence of individual stages linked together by boundary conditions, namely starve-fed solids conveying, solids conveying under pressure, delay, melting, melt conveying without pressure and melt conveying under pressure. It predicts the evolution along the screw and die of temperature, shear rate, residence time, viscosity, mechanical power consumption, pressure and fill ratio. The results obtained showed adequate sensitivity to changes in operating conditions and screw geometry and are in agreement with current theoretical and experimental knowledge.

引用

页码：957 / +

页数：2

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