钢连铸电磁搅拌工艺中电磁力的计算  

CULCULATION OF ELECTROMAGNETIC FORCE IN ELECTROMAGNETIC STIRRING DURING CONTINUOUS CASTING OF STEEL

作　　者：于洋[1] 李宝宽[1] 

机构地区：[1]东北大学材料与冶金学院,沈阳110004

出　　处：《金属学报》2006年第5期540-544,共5页Acta Metallurgica Sinica

基　　金：国家自然科学基金项目 50474085上海宝山钢铁集团公司资助

摘　　要：利用旋转磁场特征变换模型方程并结合边界更新法,提出一种计算旋转型电磁搅拌器在钢连铸坯中产生的电磁力场的方法．用该方法计算了考虑铁心影响的不同尺寸钢连铸方坯内的电磁场．模拟结果与实验数据符合良好,同时详细给出了旋转电磁场在搅拌区域内产生的电磁力的空间分布,并分析了不同电流、频率等参数对电磁力分布的影响．By using a transformed model equation of rotating magnetic field and the boundary renewal method, a numerical model has been developed to analyze the electromagnetic force field produced by the rotating magnetic field in electromagnetic stirring processing of continuous casting of steel. The model is used to calculate the magnetic fields in billets with different sizes. Results show that the calculated magnetic flux density agrees well with the experimental one. At the same time, the 3D distributions of electromagnetic forces are given in detail under variable parameters.

关 键 词：电磁搅拌 电磁力场 预测模型 钢连铸 

分 类 号：TF777[冶金工程—钢铁冶金]