摘要
连铸过程中采用电磁搅拌可以产生积极的冶金效果,但同时又伴有严重的负偏析带(白亮带)的产生。本文在实验室及工业试验的基础上对“白亮带”的形成机理及影响因素进行了较为系统的研究,得出如下结论:凝固速度的变化不是形成“白亮带”的主要原因,“白亮带”主要是由于强制流动的钢液对凝固前沿的冲刷所致。
Some good results can be obtained while applying EMS to CC process, but the heavy negative segregation band ('white band') appears at the same time. The mechanism of ' white band ' formation and its affecting factors are discussed in detail in this paper. The following conclusion can be obtained: The main cause of the formation of 'white band' is the brushing effect on the mushy zone in the liquid instead of the sudden change in the solidification rate.
出处
《钢铁研究学报》
CAS
CSCD
北大核心
1993年第2期9-16,共8页
Journal of Iron and Steel Research
关键词
连续铸造
电磁搅拌
偏析
continuous cast, electromagnetic stirring, segregation,
