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On the molten steel flow in the mold of the slab-type continuous caster, the analysis by the unsteady and three-dimensional mathematical model is carried out from the viewpoint of the meniscus behavior. As flow control methods at meniscus in the mold, electromagnetic brake and meniscus electromagnetic stirrer are chosen, and those flow control characteristics are investigated and results are as follows. 1) The electromagnetic brake makes the molten steel flow two-dimensional, and the turbulence of fluid flow is suppressed, and the electromagnetic brake has suppression of the fluctuation of the fluid flow just under the meniscus and remarkable effect of temperature rising at meniscus. 2) Flow control is possible with the interference of the electromagnetic force by the meniscus electromagnetic stirrer with the molten steel flow through the immersion nozzle, and meniscus electromagnetic stirrer emphasizes the fluctuation of molten steel flow in front of solidified shell and has slight temperature rising effect at meniscus. 31 Selection of discharge angle of immersion nozzle is important for these flow control devices by the electromagnetic field. These flow control devices have no effect or have the opposite effect in some cases by the wrong selection of discharge angle.

Effects of Electromagnetic Brake and Meniscus Electromagnetic Stirrer on Transient Molten Steel Flow at Meniscus in a Continuous Casting Mold