Effect of elongational viscosity on die design for plastic extrusion

被引：0

作者：

Gupta, M ^{[1
]}

机构：

[1] Michigan Technol Univ, Dept Mech Engn & Engn Mech, Houghton, MI 49931 USA

来源：

ANTEC '99: PLASTICS BRIDGING THE MILLENNIA, CONFERENCE PROCEEDINGS, VOLS I-III: VOL I: PROCESSING; VOL II: MATERIALS; VOL III: SPECIAL AREAS; | 1999年

关键词：

elongational viscosity; extensional viscosity; extrusion die;

D O I：

暂无

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

A finite element simulation of the flow in a rectangular die with an abrupt contraction is presented. Effect of shear and elongational viscosities of a polymer on the flow in the die is analyzed. The sheer and elongational viscosities ari: represented by a truncated power-law model. The power-law indices for the planar and axisymmetric elongational viscosities are found to have significant effect on the pressure arid velocity fields in the die.

引用

页码：83 / 87

页数：5

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