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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 11    No. 3    June 2001

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Temperature simulation of
EMC aluminum ingot with induced heat
LI Zhao-xia(李朝霞), ZHENG Xian-shu(郑贤淑),
CAO Zhi-qiang(曹志强), JIN Jun-ze(金俊泽)

Research Center of Foundry Engineering,
Dalian University of Technology, Dalian 116023, P.R.China

Abstract:The numerical simulation of temperature field of electromagnetic casting (EMC) aluminum ingots is an effective and also necessary approach to study the temperature field and forecast the quality of EMC ingot, or optimize the technological parameters. In EMC, the alternating electromagnetic field can produce induced current and heat within the surface layer. To calculate the temperature field precisely, the induced heat should be taken into account. The induced heat has been coupled into the calculation formula of temperature field of unit volume per unit time, which provides a convenient and also precise method to calculate the temperature field. Besides, the effect of induced heat on the temperature field of ingot has been simulated and discussed. The results show that the induced heat has large influences on the height of liquid column and the surface temperature of ingot.

 

Key words:  electromagnetic casting; temperature field; induced heat; skin effect

ISSN 1672-7029
CN 43-1423/U

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