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试验和分析了结晶器电磁搅拌(M-EMS)对马氏体不锈钢150mm×150mm连铸坯的中心疏松、等轴晶、缩孔及表面质量的影响,并对电磁搅拌对铸坯凝固影响的机理进行探讨。结果表明,经结晶器电磁搅拌后,铸坯中心等轴晶率平均达到50％、最高达57％,中心疏松均在1．5级以下,中心缩孔90％在1．0级内;铸坯表面质量由使用结晶器电磁搅拌的85％提高到97％。
The influences of electromagnetic stirring (M-EMS) on center looseness, equiaxed grains, shrinkage cavities and surface quality of martensitic stainless steel 150mm × 150mm billets were tested and analyzed. The effects of electromagnetic stirring on solidification of billets Mechanism to explore. The results show that the average equiaxed grain size of the center of the slab reaches 50% and the maximum is 57% after the mold is electromagnetically stirred. The center loosens below 1.5 and the center shrinks 90% within 1.0. Casting The surface quality of the billet was increased from 85% using a crystallizer to 97%.