Thermal contact conductance at continuous roll-casting interface

  • Hu Shi-cheng  (胡仕成)Email author
  • Ma Wei-ce  (马维策)
  • Du Lei  (杜磊)
  • Li Xiao-qian  (李晓谦)
  • Zhong Jue  (钟掘)


The effects of surface roughness, strain rate, friction coefficient and pressure on real contact area were analyzed based on the research of Stupkiewicz. The real contact area model taking account of the effect of friction and deformation of material was obtained. The model of contact conductance at the rolling interface was obtained by integrating the specific feature of heat transfer through the interface of continuous roll-casting. The results indicate that the real contact area increases obviously when the material is under yield, and the real contact area varies inversely with surface roughness, whereas it varies exponentially with friction coefficient, strain rate and pressure, and the power factor depends on strain rate.

Key words

real contact area strain rate pressure thermal contact conductance 


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Copyright information

© Published by: Central South University Press, Sole distributor outside Mainland China: Springer 2007

Authors and Affiliations

  • Hu Shi-cheng  (胡仕成)
    • 1
    Email author
  • Ma Wei-ce  (马维策)
    • 1
  • Du Lei  (杜磊)
    • 1
  • Li Xiao-qian  (李晓谦)
    • 1
  • Zhong Jue  (钟掘)
    • 1
  1. 1.School of Mechanical and Electrical EngineeringCentral South UniversityChangshaChina

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