【摘 要】
：
Heat transfer and deformation of initial solidification shell in soft contact continuous casting moldunder high frequency electromagnetic field were analyzed us
【机 构】
：
State Key Laboratory of Advanced Steel Processes and Materials,School of Metallurgical and Ecologica
论文部分内容阅读
Heat transfer and deformation of initial solidification shell in soft contact continuous casting moldunder 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.
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