摘要
应用以前所建立的数学模型,确定了几种渣系重熔冷轧辊用钢的最优工艺,对重熔钢锭的质量进行了分析,研究了工艺制度对重熔钢锭凝固质量的影响.实验表明,通过工艺参数的合理选择,控制重熔过程的局部凝固时间和二次枝晶间距长度,进而控制重熔钢锭的偏析程度的方法是可行的.对于Cr5冷轧辊用钢而言,局部凝固时间越长,对应的二次枝晶间距越长,由于元素偏析所引起的碳化物含量越高.
Based on the mathematical model developed previously by the authors for ESR process, the optimal process technologies were determined for some slag systems to be used in ESR process from which the steel will be provided for cold rolls. Analyzing the quality of remelting ingots, the influence of technological schedule on the solidification quality of those ingots was investigated. Testing results showed that the reasonable selection of process parameters is actually feasible to control local solidification time and secondary interdendritic spacing and, further, control the segregation in remelting ingots. With regard to the steel Cr5 for cold rolls, the longer the local solidification time, the longer the corresponding secondary interdendritic spacing and the higher the content of carbides due to segregated elements.
出处
《东北大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2009年第11期1598-1601,共4页
Journal of Northeastern University(Natural Science)
基金
国家自然科学基金
上海宝钢集团公司联合资助重点项目(50534010)
关键词
电渣重熔
凝固质量
枝晶间距
局部凝固时间
冷轧辊
ESR
solidification quality
interdendritic spacing
local solidification time
cold roll
