结晶器电磁搅拌对轴承钢矩形坯凝固组织的影响研究  

The Study on the Influence of Mold Electromagnetic Stirring on the Solidification Microstructure of Bearing Steel Rectangular Bloom

作　　者：王坤[1] 王立峰[1] 孙齐松[1] 张炯明[2] 

机构地区：[1]首钢技术研究院 [2]北京科技大学

出　　处：《首钢科技》2009年第2期39-41,共3页Shougang Science and Technology

摘　　要：通过分析轴承钢矩形坯结晶器电磁搅拌工艺参数对二次枝晶间距、冷却速度及等轴晶率的影响，得出了不同断面轴承钢矩形坯的二次枝晶间距与冷却速度、拉速、搅拌电流及频率的关系，为确定轴承钢最佳电磁搅拌工艺参数提供指导。Through analysis on the influences of the mold electromagnetic stirring parameters on the secondary dendrite arm space, the cooling rate and the equiaxed crystal ratio of the bearing steel rectangular bloom, the relationships among the secondary dendrite arm space, cooling rate, casting speed, and stirring parameters are examined. These conclusions are helpful in setting the most suitable stirring parameters for bearing steel casting.

关 键 词：结晶器 电磁搅拌 连铸矩形坯 凝固组织 

分 类 号：TF777[冶金工程—钢铁冶金] TF762.4