Study of the rheology of powder extrusion (II) - Analyses of the rheological behaviours

被引：0

作者：

Zhou, JC ^{[1
]}

Huang, BY ^{[1
]}

机构：

[1] Cent S Univ Technol, Natl Key Lab Powder Met, Changsha 410083, Peoples R China

来源：

RARE METAL MATERIALS AND ENGINEERING | 1998年 / 27卷 / 05期

关键词：

powder extrusion molding; rheology; flow-in-bore;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The extrusion of mixed feedstocks(binder plus powder) are discussed in detail. The extrusion flow generally can be divided into: convergent flow, axial layer-flow and uniform flow, and the swell behaviour. The flow mechanism and the features of the various theologic regions are examined. Some theologic characteristics of the melting feedstocks in the flow processes are analysed and the melting-matter flow behaviors in the full-developing region which directly effects the extruded product qualities are studied stressly. As a result of the analyses of the flow behaviours and features of the full-developing region, a simple practical physical model is offered, and some mathematical functions describing theologic behavior are presented.

引用

页码：267 / 270

页数：4