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Shape Design and Specific Torque Characteristics of the Extrusion Twin Screw  

최부희 (서울정수기능대학 자동화시스템과)
최상훈 (건국대학교 기계항공공학부)
Publication Information
Journal of the Korean Society for Precision Engineering / v.20, no.8, 2003 , pp. 185-193 More about this Journal
Abstract
The modular self-wiping co-rotating twin screw extruder (SWCOR) has become the most important of twin screw machines. Screw design is one of the most important factors in determining performance of screw extruder. The screw flight and screw channel geometry of SWCOR is determined by the screw diameter, centerline distance, helix angle, and flights number. The maximum allowable throughput rate on a twin screw extruder is determined by a combination of free volume and available specific torque. In this paper we designed geometrical parameters of extruder screw and presented optimal specific torque value in K=1.55, and then developed screw design program for the screw cutting by the use of JAVA API in the twin screw extruder.
Keywords
Co-rotating; Twin screw extruder; Screw flights; Specific torque;
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