Premium
Effects of interface resistance on heat transfer in steel cold rolling
Author(s) -
Tseng Ampere A.,
Wang Shi R.
Publication year - 1996
Publication title -
steel research
Language(s) - English
Resource type - Journals
eISSN - 1869-344X
pISSN - 0177-4832
DOI - 10.1002/srin.199605457
Subject(s) - thermal contact conductance , materials science , heat transfer , lubricant , surface roughness , coolant , thermal conductivity , die (integrated circuit) , finite element method , thermal resistance , surface finish , metallurgy , composite material , contact resistance , contact area , thermal , mechanical engineering , mechanics , thermodynamics , engineering , physics , layer (electronics) , nanotechnology
The thermal contact resistance created in the bite region during rolling depends on surface roughness, contact pressure, and the coolant, lubricant or oxide scale between the roll and strip. Therefore, to estimate temperatures of the roll and the strip accurately, the interface resistance in the contact region should be considered when modelling. The purpose of this study is to more effectively analyze the thermal behaviour of the steel rolling process by considering the interface resistance of the roll and strip in the contact region. Since the interface is very thin in comparison with its length, it is modelled as one‐dimensional heat transfer with friction heat generated along the interface. For the estimation of the thermal contact resistance, different surface situations of cold rolling are considered. The finite element method is adopted to evaluate the deformation and friction power dissipated in the rolls and strip during rolling process. Roll and strip thermal properties, such as thermal conductivity and specific heat, are considered to be temperature dependent during the calculation.