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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 12    No. 3    June 2002

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Modeling for thermal contact resistance of
 frictional interface under high temperature
and high pressure
ZHAN Li-hua(湛利华), LI Xiao-qian(李晓谦),
HU Shi-cheng(胡仕成), CAO Jun(曹  俊)

College of Mechanical and Electrical Engineering,
Central South University, Changsha 410083, China

Abstract:According to the thermodynamic characteristics in the work interface o f the plastic forming of metals, a set of TCR (thermal contact resistance) experimental system under the conditions of high temperature and high pressure has be en designed. The interrelations between the thermal contact resistance (TCR) and its influence factors such as contact pressure etc, are obtained. A modified coefficient E is introduced to consider the relative slide in the contact interface. Then the interfacial TCR calculating model, which suits to the special conditions of `high temperature+plastic rheology' and frictional contact such as continuous roll casting process, is established.

 

Key words: continuous roll casting; thermal contact resistance; plastic rheology; frictional contact

ISSN 1672-7029
CN 43-1423/U

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