【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。更多还原

【Abstract】 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更多还原