Numerical Simulation and Experimental Study on the Axial Force of Screw in Co-rotating Twin Screw Extruder

doi:10.19491/j.issn.1001-9278.2008.07.020

China Plastics ›› 2008, Vol. 22 ›› Issue (07): 97-102 .DOI: 10.19491/j.issn.1001-9278.2008.07.020

Numerical Simulation and Experimental Study on the Axial Force of Screw in Co-rotating Twin Screw Extruder

LONG Zhi一bin，ZHANG Ya-qin，LUO Bing，ZHAO Feng，Han Ya-nan

College of Mechanical and Electrical Engineering, Beijing University of Chemical Technology, Beijing 100029，China

Received:2008-06-02 Revised:1900-01-01 Online:2008-07-26 Published:2008-07-26

Abstract

Abstract: The screw axial force of a screw segment was simulated using POLYFLOW software. The recult indicated that screw axial force is fluctuated with screw rotation，various with the screw configuradons and operating conditions. The screw axial force of intermeshing co-rotating twin screw extruder was measured by strain experiment of drawbars. Experimental results show that the screw axial force is composed by static pressure force of the die and additive force along the screw, the ratio of additive force along the screw to static pressure force of die ranges from 0.4 to1.6

Key words: co-rotating twin screw extruder, strain of drawbar, screw axial force, additive force alongthe screw, numerical simulation

LONG Zhi一bin, ZHANG Ya-qin, LUO Bing, ZHAO Feng, Han Ya-nan. Numerical Simulation and Experimental Study on the Axial Force of Screw in Co-rotating Twin Screw Extruder [J]. China Plastics, 2008, 22(07): 97-102 .

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Numerical Simulation and Experimental Study on the Axial Force of Screw in Co-rotating Twin Screw Extruder

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