Advertisement

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)
Article

Abstract

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 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. [1]
    CHANG J C, WENG C I. Numerical modeling of twin-roll casting by the coupled fluid flow and heat transfer model[J]. International Journal for Numerical Methods in Engineering, 1997, 40(3): 493–509.CrossRefGoogle Scholar
  2. [2]
    BRADBURY P J, HUNT J D, Coupled fluid flow, deformation and heat transfer model for a twin roll caster[J]. Minerals, Metals & Materials Soc, 1995, 125(2): 739–746.Google Scholar
  3. [3]
    SEYEDEIN S H, HASAN M. Numerical simulation of turbulent flow and heat transfer in the wedge-shaped liquid metal pool of a twin-roll caster[J]. Numerical Heat Transfer, Part A: Application. 1997, 31(2): 393–410.CrossRefGoogle Scholar
  4. [4]
    JARRY P, TOITOT D, MENET P Y. Thermo-mechanical modeling of 3C roll casting of alloys[J]. Metals & Materials Soc, 1996, 47(4): 905–911.Google Scholar
  5. [5]
    YUN M, HUNT J D, EDMONDS D V. Heat line formation during roll-casting of aluminum alloys at thin gauges[J]. Journal de Physique, 1993, 3(7): 227–230.Google Scholar
  6. [6]
    YUN M, LOKYER S, HUNT J D. Twin roll casting of aluminum alloys[J]. Material Science and Engineering A, 2000, A280(1): 116–123.CrossRefGoogle Scholar
  7. [7]
    WANG B, ZHANG J, ZHANG Y, et al. Numerical and physical simulation of a twin-roll strip caster[J]. Journal of University of Science and Technology Beijing, 2006, 13(5): 393–400. (in Chinese)CrossRefGoogle Scholar
  8. [8]
    SANTOS C A, SPIM J A, GARCIA A. Modeling of solidification in twin-roll strip casting[J]. Journal of Materials Processing Technology, 2000, 102(1/3): 33–39.CrossRefGoogle Scholar
  9. [9]
    COOPER M G, MIKIC B B, YOVANOVICH M M. Thermal contact conductance[J]. Int J Heat Mass Transfer, 1969, 23(12): 279–300.CrossRefGoogle Scholar
  10. [10]
    STUPKIEWICZ S, MORZ Z. Phenomenological model of real contact area evolution with account for bulk plastic deformation in metal forming[J]. International Journal of Plasticity, 2003, 19(2): 323–344.CrossRefGoogle Scholar
  11. [11]
    SUTCLIFFE M P F. Surface asperity deformation in metal forming process[J]. Int J Mech Sci, 1988, 30(11): 847–868.CrossRefGoogle Scholar
  12. [12]
    PHILLP J, DENIS T, PIERRE Y M, Thermo-mechanical modeling of 3C roll casting of alloys[J]. Light Metals, 1996, 15(4): 905–911.Google Scholar

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

Personalised recommendations