转炉—大方坯连铸流程试制高铬管坯钢  

Trial Production of High Chromium Tube Steel by Convert-bloom Continuous Casting Process

作　　者：陈天明[1] 陈永[1] 邓君[1,2] 杨森祥[2,3] 陈亮[1] 李清春 曾建华[1] 

机构地区：[1]攀钢集团研究院有限公司,四川成都611731 [2]昆明理工大学冶金与能源工程学院,云南昆明650093 [3]攀钢集团攀枝花钢钒有限公司,四川攀枝花617022

出　　处：《钢铁钒钛》2011年第2期39-42,共4页Iron Steel Vanadium Titanium

摘　　要：针对L80-3Cr高铬管坯钢的成分特点及质量需求,通过采用合理的合金化制度、过程温度制度及连铸关键工艺技术,打通了半钢炼钢条件下LD—LF—RH—Bloom生产该钢种的工艺流程,达到了经济生产的目的。工业试验表明,冶炼过程Cr的平均收得率达98.2%,成品Cr成分控制稳定;圆钢wT[O]含量为10×10-6～16×10-6,平均13.5×10-6,夹杂物各项评级均≤1.0级,表面及内部质量良好。In consideration of the composition characteristics and quality requirements of L80-3Cr high chromium steel,the rational alloying system,temperature system and key technologies of continuous casting process are employed in the development of a full-line operation of LD-LF-RH-Bloom continuous casting on steelmaking with semi-steel,which suggests an economic production of the steel has been realized.The industrial tests show that the average recovery rate of Cr in smelting process is 98.2%,and Cr content in final products is consistent.The T[O] content of rolled products is ranged from 10×10-6 to 16×10-6 with an average content of 13.5×10-6.Various inclusions of the products are no more than 1.0 level.The rolled products have good surface quality and internal quality.

关 键 词：高铬钢 转炉 半钢炼钢 大方坯连铸 铬 收得率 

分 类 号：TF777[冶金工程—钢铁冶金]