Effects of Temperature and Strain Rate on Deformation of Polymers during Hydrostatic Extrusion

  • N. Inoue
  • T. Nakayama
  • M. Shimono


As reported in a companion paper [1], quite a variety of crystalline and amorphous polymers were hydrostatically extruded with extrusion ratios ranging from 1.2 to 10, and a linear relation was obtained between the extrusion pressure p and extrusion ratio R. Buckley and Long have hydrostatically extruded polyethylene, polypropylene, and some other polymers and have also obtained a linear relation between p and R [2]. The linear relation between p and R was also established by Davis for polyethylene [3], and by Yoon et al. for polypropylene [4]. Nakayama and Kanetsuna [5], on the other hand, hydrostatically extruded polyethylene at various levels of temperature and obtained an exponential relation between p and R. Recently, Nakayama et al. [6] also established a nonlinear relation for polypropylene.


Polyvinyl Chloride True Stress Deformation Pattern Extrusion Ratio Static Extrusion 
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Copyright information

© Springer Science+Business Media New York 1979

Authors and Affiliations

  • N. Inoue
    • 1
  • T. Nakayama
    • 1
  • M. Shimono
    • 2
  1. 1.Science University of TokyoTokyoJapan
  2. 2.Nippon Steel CorporationTokyoJapan

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