Modular tangential counter-rotating twin screw extrusion: Determination of screw pumping characteristics of modules and composite machine behavior

被引:7
作者
Bang, DS [1 ]
Hong, MH [1 ]
White, JL [1 ]
机构
[1] Univ Akron, Inst Polymer Engn, Akron, OH 44325 USA
关键词
D O I
10.1002/pen.10211
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
Extensive experimental studies of a starved flow modular tangential screw extruder are described. Die pressures and fill factor profiles along the screw axis are measured and used to determine screw characteristic curves Q vs. Delta P/L for individual screw elements of varying designs in a Leistritz twin screw extruder. Superior pumping characteristics of matched as opposed to staggered elements is found. The experimental screw characteristic curves are compared with the results of mathematical simulations of the flow. Agreement is generally good.
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页码:485 / 498
页数:14
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