Numerical simulation of heat transfer and deformation of initial shell in soft contact continuous casting mold under high frequency electromagnetic field

作者：Na Xian zhao^*; Xue Min; Zhang Xing zhong; Gan Yong

来源：Journal of Iron and Steel Research International, 2007, 14(6): 14-21.

DOI：10.1016/S1006-706X(07)60083-1

• soft contact
• electromagnetic continuous casting
• mold
• heat transfer
• initial solidification
• elastic-plastic deformation
• finite element method
• numerical simulation

Heat transfer and deformation of initial solidification shell in soft contact continuous casting mold under high frequency electromagnetic field were analyzed using numerical simulation method; the relative electromagnetic parameters were obtained from the previous studies. Owing to the induction heating of a high frequency electromagnetic field (20 kHz), the thickness of initial solidification shell decreases, and the temperature of strand surface and slit copper mold increases when compared with the case without the electromagnetic filed. The viscosity of flux decreases because of the induction heating of the high frequency electromagnetic field, and the dimension of the flux channel increases with electromagnetic pressure; thus, the deformation behavior of initial solidification shell was different before and after the action of high frequency electromagnetic field. Furthermore, the abatement mechanism of oscillation marks under high frequency electromagnetic field was explained.

• 出版日期2007-11
• 单位钢铁研究总院; 北京科技大学