STUDY ON THE FLUID FLOW IN SLAB CONTINUOUS CASTING MOLD WITH ELECTROMAGNETIC BRAKE
YU Zhan, ZHANG Zhenqiang, REN Zhongming, LEI Zuosheng, DENG Kang
Shanghai Key Laboratory of Modern Metallurgy & Materials Processing, Shanghai University, Shanghai 200072
Cite this article:
YU Zhan ZHANG Zhenqiang REN Zhongming LEI Zuosheng DENG Kang. STUDY ON THE FLUID FLOW IN SLAB CONTINUOUS CASTING MOLD WITH ELECTROMAGNETIC BRAKE. Acta Metall Sin, 2010, 46(10): 1275-1280.
Abstract The flow patterns were simulated by Hg in high speed continuous casting mold with electromagnetic brake. The velocity in mold and fluctuation of meniscus was measured by ultrasonic doppler velocity. The effect of the magnetic field on the fluid flow was analyzed. The influence of magnetic flux density and location on the flow discharged from the nozzle, the velocity in mold, the fluctuation and flow of the meniscus, and the washing intensity of flow were studied. The results showed that the flow discharged from the nozzle was suppressed, the flow in the upper eddy was strengthened, the flow in the lower eddy was weakened, and the fluctuation of free surface and the flow at the meniscus were improved. The magnetic field could not only damp flow, but also change the flow direction and redistribute the flux of liquid steel. When Bmax was higher than 0.29 T, it was beneficial to optimizing and controling the flow in the mold.
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