纺织学报 ›› 2011, Vol. 32 ›› Issue (7): 132-136.

• 机械与器材 • 上一篇    下一篇

基于Polyflow的十字异形纤维挤出成形过程的模拟计算

甘学辉1,马晓建2,刘强2,曹均雨2,刘娜娜2,杨崇倡2   

  1. 1. 东华大学
    2.
  • 收稿日期:2010-07-23 修回日期:2010-10-16 出版日期:2011-07-15 发布日期:2011-09-15
  • 通讯作者: 甘学辉 E-mail:xuehuig@dhu.edu.cn
  • 基金资助:

    中央高校基本科研业务费项目(9D10306);教育部“211三期”重点学科建设;省级

The Numerical Simulation Research of The Cross Abnormity Fibre With The Extrusion Process Based on PolyFlow

  • Received:2010-07-23 Revised:2010-10-16 Online:2011-07-15 Published:2011-09-15

摘要: 本文基于Polyflow专用软件,对十字异形纤维挤出成形过程进行了数值模拟研究,模拟结果表明:熔体从喷丝模口挤出后速度重新分布与熔体挤出胀大是同时发生的,表面张力是引起纤维截面变化的主要作用因素,因此在设计喷丝板挤出口模之时应考虑到表面张力对纤维成形过程的影响,在设计口模之前对熔体挤出过程进行逆向挤出模拟,以保证能到所需截面的异形纤维。研究成果对于异形纤维的开发具有理论指导作用。

Abstract: The numerical simulation of the cross abnormity fibre with the extrusion process was researched based on polyflow software in this paper. The simulation results indicate: The reorder of the extrusive velocity and the extrusion swell of the polymer melt are arised after the spinneret. And the surface tension is the main factor of the transformation of the fibre section. So the tension factor to the fibre spinnability should be considered to the design of the spinneret. To obtain the accurate section of abnormity fibre, the numerical simulation of the antidromic extrusion process of polymer melt should be accomplishec before the design of spinneret. The research results will have the important effect to the exploiture of abnormity fibre.

中图分类号: 

  • TQ342.19
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