X65MS管线钢中心偏析改善的实践  

Improvement on central segregation of pipeline steel X65MS

作　　者：宋佳友 单庆林 景财良 王胜东 王皓 

机构地区：[1]首钢京唐钢铁联合有限责任公司炼钢作业部,河北唐山063200

出　　处：《中国冶金》2016年第8期64-68,共5页China Metallurgy

摘　　要：为了研究改善X65MS管线钢中心线偏析的措施,分析板坯中心偏析的原因、形态以及危害,重点讨论X65MS抗酸管线钢在实际生产中化学成分、浇铸过热度、动态轻压下对中心偏析的影响。结果表明,动态轻压下对中心偏析的改善最为有效,而降低钢中磷质量分数、降低钢水过热度、保证铸机精度,则可使中心偏析得到进一步改善。In order to improve the central line segregation of pipeline steel X65MS,the causes,form and harm of central segregation of slab are analyzed and focus on how chemical composition,superheat and dynamic soft reduction effected central segregation of X65MS acid pipeline steel in actual production.The results show that the central segregation can be improved greatly by dynamic soft reduction,and can be improved further by reducing the phosphorus mass fraction in the steel,reducing the superheat of the molten steel and ensuring the accuracy of the casting machine.

关 键 词：X65MS 中心偏析 过热度 动态轻压下 

分 类 号：TF777[冶金工程—钢铁冶金]