华南理工大学学报(自然科学版) ›› 2003, Vol. 31 ›› Issue (10): 6-10.

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特种工程塑料螺杆挤出纤维的成型机理

许忠斌1 吴舜英1 益小苏2   

  1. 1.华南理工大学 工业装备与控制工程学院‚广东 广州510640;2.北京航空材料研究院‚北京100095
  • 出版日期:2003-10-20 发布日期:2022-05-26
  • 作者简介:许忠斌(1969-)‚男‚副教授‚博士‚主要从事塑料挤出成型、注射成型机理及技术研究.
  • 基金资助:
    先进复合材料国防科技重点实验室基金资助 项目(2001065)

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

摘要: 基于特种工程塑料纤维拉伸及冷却固化段的流变特性‚选用 White-Metzner 本 构方程‚推导出了特种工程塑料螺杆挤出纤维成型过程的非定常拉伸流动数学模型.通过 对此数学模型进行简化‚并用差分法进行数值计算‚求出了特种工程塑料 PEEK 纺丝线 上的速度分布及拉伸应变速率分布‚为特种工程塑料螺杆挤出纤维成型装置的设计和纤 维成型过程工艺参数的确定提供了理论依据. 

关键词: 特种工程塑料, 挤出, 纤维成型, 机理

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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