Abstract Due to the complex internal geometry of the mold and relatively higher casting speed, severe fluctuation in the slag layer occurs frequently during thin-slab continuous casting. The implementation of electromagnetic braking (EMBr) combined with an increase in mold thickness facilitates active control of the flow behavior in the mold. However, its correlation with specific process parameters remains to be further elucidated. In this paper, a three-dimensional multiphase flow mathematical model was developed for a Compact Strip Production (CSP) mold under the influence of a static magnetic field. The coherent structures and velocity distributions within the mold were compared before and after the application of EMBr. The effects of magnetic flux density, casting speed, and mold width on transient velocity and steel-slag interfacial fluctuations were systematically analyzed. Additionally, the relationship between process parameters and slag layer fluctuations was investigated through power spectrum density (PSD) analysis. To predict the steel-slag interfacial behavior in a thickened CSP mold under EMBr conditions, nonlinear fitting was employed to derive empirical formulas for the average velocity and wave amplitude of steel-slag interface.
Hu et al. (Thu,) studied this question.
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