2D-FEM analysis of rolls temperature field in induction heating process

Cai, Ban; Wang, Hao; Mei, Ruibin; Li, Changsheng
May 2013
AIP Conference Proceedings;May2013, Vol. 1532 Issue 1, p977
Academic Journal
Hot-roller warm rolling process is expected to achieve a breakthrough in solving the problem of high quality rolling for difficult deformed metals. In this paper roll surface induction heating was studied based on the finite element theory of electromagnetic-thermal coupling and experiment. The law of temperature field for a static roll in induction heating process was analyzed by FEM. The results show that roll surface temperature can achieve 721°C at 48s under 20000Hz power frequency, 350×104A/m2 current density, due to the skin effect on roll surface. Using a special induction coil in the laboratory, an experiment of roll induction heating was carried out with the same process parameters. The calculated results of temperature on roll surface agree well with the measured value.


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