Journal of South China University of Technology(Natural Science Edition) ›› 2003, Vol. 31 ›› Issue (10): 6-10.

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Mechanism of Fiber Forming of Screw Extrusion for High Performance Engineering Plastics

X u Zhong-bin 1 Wu Shun-ying 1 Y i Xiao-su 2    

  1. 1.School of Industrial Equipment and Control Engineering‚South China Univ.of Tech.‚Guangzhou510640‚China; 2.Institute of Aeronautical Materials‚Beijing100095‚China
  • Online:2003-10-20 Published:2022-05-26

Abstract: Based on the rheological characteristics of the melts of high performance engineering plastics at drawing and cooling stages‚and by choosing White-Metzner constitutive equation‚the unsteady enlongational flow mathematical model of the screw extrusion spinning process of high performance engineering plastics fiber was developed.The mathematical model was simplified and the numerical computation with difference method was conducted.Thus the velocity and elongational rate of PEEK filament on the spinline were obtained‚which provides theoretical reference for the spinning equipment design and parameter determination of the spinning process of screw extrusion for high performance engineering plastics. 

Key words: high performance engineering plastics, extrusion, fiber forming, mechanism

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