A three-dimensional finite element model of electromagnetic field and temperature field was developed to investigate the effects of induction heat of high frequency electromagnetic field on the early solidification process of molten steel. The results show that the increases of exciting current frequency make the effects of induction heat on solidification increase remarkably. Contrarily, the effects of induction heat on solidification process are weakened sharply with the increase of casting speed. Especially, when the casting speed exceeds a certain value, the effects of induction heat on solidification process are nearly negligible.
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