Application of electromagnetic stirring systems in CCMs, and their influence on macrostructure quality of billets

Electromagnetic stirring is a technique of influencing the crystallization pattern of a continuously cast workpiece and suppressing the development of a number of macrostructural defects in it. In this study, technological schemes are presented for application of electromagnetic fields in continuous-casting machines (CCMs) while discussing the resultant physical effects. We present actual results on the quality of steel obtained using a roller-type EMS system installed in the secondary cooling zone of a slab CCM at Novolipetsk Iron and Steel Work.