Abstract：In order to effectively control the molten steel flow and complex multiphase flow behavior in the high casting speed slab mold, a new type of freestanding adjustable combination electromagnetic brake (FAC-EMBr) was introduced. The electromagnetic field characteristics in FAC-EMBr mold and the flow control behaviors of the new type of magnetic field were studied by numerical simulation. The numerical simulation results showed that the uniformly distributed magnetic fields were formed in the upward and downward backflow region and meniscus region of the mold by applying FAC-EMBr, and then the molten steel flow in the three key regions were controlled. Combined action of the horizontal and vertical magnetic poles can significantly reduce the impact strength of the jet on the narrow face of the mold, and reduce the molten steel velocity of upward and downward backflow. Compared with the case without electromagnetic brake and the case with EMBr ruler, the wave height of the meniscus with FAC-EMBr is reduced to 14.5 mm. Even at a high casting speed (2.2 m/min), an effective flow control effect can be obtained with the aplication of FAC-EMBr.
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2022, Vol. 41 
