湘钢冶炼临氢用12Cr2MolR钢的生产实践

特殊钢 ›› 2020, Vol. 41 ›› Issue (6): 46-50.

湘钢冶炼临氢用12Cr2MolR钢的生产实践

黄治成，史志凌

华菱湘钢五米宽厚板厂，湘潭411101

收稿日期:2020-05-28 出版日期:2020-12-01 发布日期:2022-05-08
作者简介:黄治成(1984-)，男，硕士(2009年武汉科技大学)，工程师，2006年武汉科技大学(本科)毕业，炼钢、连铸品种工艺研究。

Production Practice of Steelmaking 12Cr2MolR Steel for Hydrogen Atmosphere at Xianggang

Huang Zhicheng ， Shi Zhiling

Hualin Xianggang Five-meters Wide Heavy Plate Mill, Xiangtan 411101

Received:2020-05-28 Published:2020-12-01 Online:2022-05-08

摘要/Abstract

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。

Abstract: By converter + LF dephosphorization process for 12Cr2MolR 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.

黄治成, 史志凌. 湘钢冶炼临氢用12Cr2MolR钢的生产实践[J]. 特殊钢, 2020, 41(6): 46-50.

Huang Zhicheng , Shi Zhiling. Production Practice of Steelmaking 12Cr2MolR Steel for Hydrogen Atmosphere at Xianggang[J]. Special Steel, 2020, 41(6): 46-50.