Numerical Simulation of Melt Flow, Heat Transfer and Solidification in CSP Continuous Casting Mold With Vertical-Combined Electromagnetic Braking

During continuous casting, electromagnetic braking (EMBr) is a widely used technology to improve the quality of steel product. The EMBr takes benefit generation Lorentz forces that are induced by interactions melt flow with externally applied magnetic fields. In present paper we propose and investigate new type EMBr, named vertical-combined (VC-EMBr) in application Compact Strip Production (CSP) thin slab casting mold. unique characteristic VC-EMBr lies fact two pairs vertical poles (VMPs) located adjacent mold narrow faces on basis Ruler-EMBr. To determine effect VC-EMBr, influence installation position VMPs flow, heat transfer solidification behaviors ultra-low carbon 1500 × 70 mm CSP funnel-type numerically solved. fluid-flow-related phenomena three cases mold, i.e., No-EMBr, Ruler-EMBr, further investigated evaluate metallurgical capability including quantitative evaluation level fluctuation, transfer, shell growth at speed 4.5 m/min. parametric study shows for width mm, optimal can be obtained when 50 from face With this adjustment, magnitude maximum surface velocity reduced pct compared case p1 = 0 mm. This reduction decrease loss upper recirculation region promote homogeneity temperature field therein. addition, results show newly proposed provides more obvious technological advantages than traditional Ruler-EMBr bifurcated nozzle. For horizontal (HMPs) keep same advantage as providing good protection against excessive downward impact molten steel. On other hand, overcome disadvantage cannot well suppress upward backflow instance, applying flux density 0.3 T, has better reduce amplitude fluctuation 83.8 increase average 1803.6 K 1804.5 variation prevent defects related such slag entrapment powder freezing. basis, it seen industrial these findings.