胎圈钢丝用C72DA钢转炉高拉碳操作实践  

Practice on catching carbon during tyre cord steel C72DA smelting process

作　　者：左启伟[1,2] 杨静波[1,3] 安霞[3] 苍大强[1,2] 

机构地区：[1]北京科技大学冶金与生态工程学院,北京100083 [2]北京科技大学钢铁冶金新技术国家重点实验室,北京100083 [3]唐山钢铁集团有限责任公司,河北唐山063016

出　　处：《炼钢》2014年第4期1-4,9,共5页Steelmaking

摘　　要：转炉冶炼胎圈钢丝用C72DA钢通过超高枪位加类双渣操作、冶金石灰生过烧率及粒度控制、足量头批料混入部分含锰矿加入制度强化、强化留渣操作4项措施强化转炉冶炼高拉碳操作。结果表明：吹炼终点钢水w（P）稳定在0．006％～0．010％，终点钢水础（C）稳定在0．27％～0．32％，终点钢水温度稳定在1630℃以上。Four measures were implemented to reach the goal of catching carbon during the tyre cord steel C72DA production, which were ultra-high position of lance plus light double slag operation, the control of lime burning and granularity, the amount of first batch contained with manganese ore and performing remaining slag operation. It was found that with the four measures, the mass fraction of phosphorus and carbon in endpoint steel could be controlled 0. 006 %- 0. 010 % and 0. 27 % - 0. 32 % separately; while the end-point temperature of steel is 1 630 ;C above stably.

关 键 词：胎圈钢丝 C72DA钢 高拉碳 脱磷 造渣 

分 类 号：TF713[冶金工程—钢铁冶金]