Effect of electromagnetic stirrer centered outside the mold on steel flow field of bloom continuous casting

Abstract

Most of the surface and sub-surface defects in continuous casting blooms are generated in the mold [1][2][3] . The flow and solidification of the molten steel in the mold have an important impact on the quality of the billet/slab [4][5][6] . Electromagnetic stirring has become the most promising technology to change the steel flow in the mold and is widely used in the billet continuous casting process [7,8] . Electromagnetic stirring in the mold facilitates the removal of inclusions and porosity, promotes superheat dissipation, improves segregation of alloying elements, and helps to break up columnar dendritic grains to form a fine equiaxed grain structure [9,10] .