电磁旋流水口连铸技术研究进展  

Study and development on electromagnetic nozzle swirling flow technology in continuous casting

作　　者：吴春雷 刘晓明 李德伟 朱晓伟 赵立佳 王强 WU Chun-lei;LIU Xiao-ming;LI De-wei;ZHU Xiao-wei;ZHAO Li-jia;WANG Qiang(Key Laboratory of Electromagnetic Processing of Materials(Ministry of Education),Northeastern University,Shenyang 110819,Liaoning,China;School of Metallurgy Engineering,Liaoning Institute of Science and Technology,Benxi 117004,Liaoning,China;School of Resources and Materials,Northeastern University at Qinhuangdao,Qinhuangdao 066004,Hebei,China)

机构地区：[1]东北大学材料电磁过程研究教育部重点实验室,辽宁沈阳110819 [2]辽宁科技学院冶金工程学院,辽宁本溪117004 [3]东北大学秦皇岛分校资源与材料学院,河北秦皇岛066004

出　　处：《连铸》2022年第4期8-15,共8页Continuous Casting

基　　金：国家自然科学基金资助项目(U21A20117);中央高校基本科研业务费专项资金资助项目(N2125018);辽宁高等学校创新团队支持计划资助项目(LT2017011);辽宁省自然科学基金项目(2022-MS-365)。

摘　　要：电磁旋流水口技术作为一种全新的结晶器控流技术,其应用情况逐渐被各钢铁企业关注。围绕近几年来电磁旋流水口技术的研究成果,总结和分析了此技术对结晶器内流场和温度分布的影响规律、可供选择的设备结构以及在工业应用中的冶金效果3个方面。电磁旋流水口技术对连铸坯质量的提升效果与结晶器电磁搅拌相当。与结晶器电磁搅拌协同作用后,可进一步细化连铸方、圆坯的凝固组织,减轻宏观偏析缺陷。各钢铁企业可根据实际现场情况,选择不同结构的电磁旋流装置,并配合优化后的水口结构,以满足生产不同钢种连铸坯的质量要求。As a novel flow-control technology in the mold,the application of electromagnetic swirling flow in the nozzle(EMSFN)has gradually attracted concern from iron and steel enterprises.Based on the research of the EMSFN technology in recent years,the influence of EMSFN technology on the flow field and temperature distribution in the mold,the optional EMSFN device structure and the metallurgical effect in the industrial application are summarized and analyzed.The effect of EMSFN technology on the quality of continuous casting billet is equivalent to that by using the mold electromagnetic stirring(M-EMS).When the EMSFN technology is applied together with the M-EMS,the solidification structure of the square and round billet can be significantly refined and the macrosegregation can be alleviated.The iron and steel enterprise can select the EMSFN devices with different structures and the optimized nozzle according to the actual site conditions,to meet the quality requirements of continuous casting products in different steel grades.

关 键 词：连铸 电磁冶金 电磁旋流水口 电磁搅拌 宏观偏析 

分 类 号：TF777[冶金工程—钢铁冶金]