新型螺旋磁场电磁搅拌的冶金效果  

An Investigation on the Metallurgical Effects of EMS by A New Type of Helical Magnetic Field

作　　者：邢文彬 许诚信[1] 房彩刚 毛斌[2] 王世郁[2] 

机构地区：[1]北京科技大学冶金系 [2]中国科学院力学所

出　　处：《北京科技大学学报》1991年第2期110-115,共6页Journal of University of Science and Technology Beijing

摘　　要：用一种新型多功能电磁搅拌器对液态金属锡进行螺旋、直线和旋转磁场电磁搅拌凝固实验,研究了各种搅拌形式对冶金效果的影响。小方坯二冷区螺旋搅拌工业试验的结果表明:它可以减轻铸坯的白亮带,提高等轴晶率,减少中心缺陷,改善宏观偏析和夹杂物分布并有助于夹杂物的去除。The helical, linear and rotary magnetic field were employed in the experiment on solidification of the molten metal Tin (Sn) by means of a new type of multifunctional electromagnetic stirrer (EMS) . The influences of the stirring types on the metallurgical effects were investigated. The results of industrial test at secondary cooling zone for billets demonstrated that the helical EMS can mitigate the white band for strand, increase the ratio of the equi-axial zone, decrease the defects in the central part, improve macrosegregation and distribation of the inclusions, and help to remove the inclusionst

关 键 词：螺旋磁场 连铸坯 电磁搅拌器 

分 类 号：TF351.5[冶金工程—冶金机械及自动化]