Φ380 mm 40Cr钢连铸圆坯结晶器电磁搅拌器电流参数优化  

Optimization of current parameters of electromagnetic stirrer for Φ380 mm 40 Cr steel continuous casting round billet crystallizer

作　　者：张洪才[1] 林鹏 许正周 印传磊 翟万里 许光乐 ZHANG Hongcai;LIN Peng;XU Zhengzhou;YIN Chuanlei;ZHAI Wanli;XU Guangle(Huaigang Special Steel Co.,Ltd.Jiangsu Shagang Group,Huai'an 223002,China)

机构地区：[1]江苏沙钢集团淮钢特钢股份有限公司

出　　处：《炼钢》2019年第6期41-45,共5页Steelmaking

摘　　要：为研究Φ380 mm合金结构钢40Cr连铸圆坯生产过程中采用的结晶器电磁搅拌技术对铸坯质量的影响,对结晶器电磁搅拌器(M-EMS)进行磁感应强度检测,并研究电磁搅拌器磁场分布规律以及不同电流参数下对连铸大圆坯质量的影响。试验结果表明,结晶器电磁搅拌电流和频率分别为300 A、2.5 Hz时,Φ380 mm 40Cr钢连铸圆坯中心碳偏析指数可稳定控制在1.05以下。In order to study the influence of the electromagnetic stirring technology of the mold in the production process of the Φ380 mm 40 Cr steel continuous casting round billet on the quality of the billet, the magnetic induction intensity of the mold electromagnetic stirrer(M-EMS) was tested, and the magnetic field distribution law of the electromagnetic stirrer and the different current parameters on the quality of continuous casting large round billet were studied.The test results show that the central carbon segregation index of Φ380 mm 40 Cr steel continuous casting round billet can be stably controlled below 1.05 when the electromagnetic stirring current and frequency of the crystallizer are 300 A and 2.5 Hz respectively.

关 键 词：电磁搅拌 磁感应强度 中心等轴晶率 中心碳偏析指数 

分 类 号：TF777[冶金工程—钢铁冶金]