湘钢冶炼临氢用12Cr2Mo1R钢的生产实践  

Production Practice of Steelmaking 12Cr2Mo1R Steel for Hydrogen Atmosphere at Xianggang

作　　者：黄治成 史志凌 Huang Zhicheng;Shi Zhiling(Hualin Xianggang Five-meters Wide Heavy Plate Mill,Xiangtan 411101)

机构地区：[1]华菱湘钢五米宽厚板厂,湘潭411101

出　　处：《特殊钢》2020年第6期46-50,共5页Special Steel

摘　　要：当临氢用12Cr2Mo1R钢采用转炉+LF脱磷工艺时,转炉终点控制[P]<0.010%,[O]>0.06%,LF平均脱磷率73%。通过LF扒渣后钢水平均返磷率为28%,中间包[P]稳定控制在0.005%以下,较"留渣+双渣"工艺平均[P]降低了0.001%,吨钢生产成本降低了约30元,磷的控制不再是生产和低磷钢品种升级的限制性环节。By converter+LF dephosphorization process for 12Cr2Mo1R steel for hydrogen atmosphere the BOF end[P]can be controlled≤0.010%and end[O]≥0.06%,the average dephosphorization rate of steel in LF is 73%and average rephosphoration rate of steel after slagging is 28%,the tundish[P]can be stably controlled below 0.005%.The average phosphorus content is reduced by 0.001%compared with the initial retained slag+double slag method,the production cost is reduced by about￥30/t steel.Phosphorus control is no longer a restricted link in production and upgrading of low phosphorus steel grade.

关 键 词：超低磷钢12Cr2Mo1R LF脱磷 扒渣 

分 类 号：TF713[冶金工程—钢铁冶金]