小方坯结晶器电磁搅拌模拟研究  

Numerical Simulation of Electromagnetic Stirring in Billet Mold

作　　者：李曜光 王宏斌[2] 白雪松 孙彦辉 张明海[2] 贾建平[2] Li Yaoguang;Wang Hongbin;Bai Xuesong;Sun Yanhui;Zhang Minghai;Jia Jianping(Collaborative Innovation Center for Common Technology of Iron and Steel,Beijing University of Science and Technology,Beijing 100083,China;Xuanhua Iron and Steel Group Co.,Ltd.,Zhangjiakou 075100,Hebei,China)

机构地区：[1]北京科技大学钢铁共性技术协同创新中心,北京100083 [2]宣化钢铁集团有限责任公司,河北张家口075100

出　　处：《钢铁钒钛》2020年第4期108-114,共7页Iron Steel Vanadium Titanium

基　　金：国家自然科学基金资助项目(No.51774030、No.U1860104)。

摘　　要：以小方坯结晶器电磁搅拌为研究对象,利用ANSYS有限元分析软件建立了小方坯结晶器电磁搅拌的三维数学模型。讨论了不同工艺参数下,电磁感应强度及电磁力的大小和分布规律。结果表明:结晶器铜管温度对结晶器电磁感应强度有明显的影响;在搅拌器中心轴线方向,电磁感应强度呈现"中间大,两头小"的分布规律,而在搅拌器中心横截面径向方向,电磁感应强度和电磁力都呈现"中间小,两头大"的分布规律;当频率一定时,电磁感应强度以及电磁力都随着电流的增大而增大;当电流强度一定时,电磁感应强度随着频率的增大而减小,而电磁力随着频率的增大而增大。In this study a three-dimensional mathematical model of electromagnetic stirring in billet mold was developed by adopting ANSYS finite element analysis software.The effects of different process parameters on magnetic flux density and electromagnetic force in the billet mold were discussed.It is found out that the temperature of mold copper tube has obvious influence on magnetic flux density.On the axis direction of the stirrer center,the distribution of magnetic flux density is higher on both sides and lower in the middle.Nevertheless,the distribution of magnetic flux density and electromagnetic force is weaker in the middle and stronger on both sides,which is on the radial direction of the cross section of the stirrer center.As the frequency keeps constant,the magnetic flux density and the electromagnetic force increase with the increase of the current.When the current keeps constant,the magnetic flux density decreases with the increase of the frequency,while the electromagnetic force increases with the increase of the frequency.

关 键 词：连铸 小方坯 结晶器 电磁搅拌 三维模型 电磁感应强度 电磁力 

分 类 号：TF777[冶金工程—钢铁冶金]