Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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A Study on Screw Design Parameters of Co-Rotating Twin Screw Extruder

동회전 2축 스크류 압출기의 스크류 설계 파라미터에 관한 연구

  • 최부희 (서울정수기능대학 자동화시스템과) ;
  • 최상훈 (건국대학교 기계항공공학부)
  • Published : 2003.07.01
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Abstract

Twin screw extruders are the heart of the polymer processing industry. They are used at some stage in nearly all polymer processing operations. This paper is concerned with the basic elements of the extruder design. The proper design of the geometry of the extruder screw is of crucial importance to the proper functioning of the extruder. If the material transport instabilities occur as a result of improper screw geometry, even the most sophisticated computerized control system cannot solve the problem. For this purpose, a characteristic design on the screw flights shape of the closely intermeshing co-rotating twin screw extruder. This paper presents design parameters of double flighted screw and triple flighted screw elements, and characteristics of various screw channel area versus screw diameter ratio, K value, in the barrel of screw extruder.

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References

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