摘要
对莱钢特钢厂连铸生产的大方坯轴承钢中心偏析的成因进行分析,研究了中间包钢水过热度等因素对中心偏析的影响,并对莱钢特钢厂的生产实践提出了预防措施。改善连铸轴承钢的中心偏析的方法和途径有:降低和稳定过热度,合理选择拉速、二冷强度和电磁搅拌参数等。
The reasons of central segregation of 260 mm×300
mm bearing steel bloom have been analyzed,and the effects of superheat and
other factors on central segregation have been investigated.Based on the
analysis,some countermeasures to prevent central segregation have been
implemented according to the practice in Special Steel Plant of Laiwu Iron and
Steel Co.,Ltd.Technologies which is used to induce the center segregation
contain lowering and stabilizing superheat,choosing reasonably casting
speed,intensity of secondary cooling water and the parameters of
electromagnetic stirring and so on.
出处
《钢铁》
CAS
CSCD
北大核心
2009年第8期39-41,共3页
Iron and Steel
关键词
轴承钢
方坯
中心偏析
预防措施
bearing steel
bloom
central segregation
preventive measure
