结晶器电磁搅拌在圆坯Φ270mm断面上的应用  

Application of M-EMS in Casting the Round of Φ270mm

作　　者：赵鑫[1] 王宝峰[2] 谌志勇 

机构地区：[1]内蒙古包钢钢联股份有限公司炼钢厂,内蒙古包头014010 [2]内蒙古科技大学,内蒙古包头014010

出　　处：《包钢科技》2008年第S1期12-14,共3页Science & Technology of Baotou Steel

摘　　要：文章对包钢炼钢厂圆坯连铸机Φ270 mm断面结晶器电磁搅拌的使用效果进行了研究,并通过试验确定了电磁搅拌工艺参数,为300 A,2.5 Hz,10-3-10。结果证明:结晶器电磁搅拌能明显改善圆坯质量,3级缺陷比率由1.25%降低到0.1%;铸坯中心等轴晶比率由平均12.7%增加到平均21.5%;铸坯中心碳元素偏析由平均1.07降低到平均0.97。The paper studies the application effectiveness of EMS in casting round of Φ270 mm in the Steel-making Plant of Baotou Steel and determines the parameters by trials,which is 300A,2.5Hz,10-3-10.The trials prove EMS can improve the strand′s quality,the defect ratio of level 3 decreases from 1.25% to 0.1%,the axial crystal ratio increases from 12.7% to 21.5%,the carbon segregation decreases from 1.07 to 0.97.

关 键 词：电磁搅拌 圆坯 内部质量 表面质量 

分 类 号：TF777[冶金工程—钢铁冶金]