The linear-motor type in-mold electromagnetic stirring technique for the slab continuous caster.

Abstract

Conducting downward longitudinal stirring by the use of linear-motor type In-mold Electromagnetic Stirrer (M-EMS), it was possible to control the molten steel flow within the mold and to reduce inclusions and pinholes at the inside t/8 accumulation zone of the curved-type slab continuous caster.The reason have proved from the investigation of flow pattern in the mold and three-dimensional flow analysis; that is the M-EMS downward longitudinal stirring reduces the penetration depth of outlet molten steel flow from the nozzle and decelerates the flow-rates at the meniscus.