IF钢300tRH的生产实践  

Productive Practice of Refining with a 300 t RH Unit for IF Steel

作　　者：焦兴利[1,2] 王泉[2] 张虎[2] 

机构地区：[1]钢铁研究总院,北京100081 [2]马鞍山钢铁股份有限公司,马鞍山243000

出　　处：《特殊钢》2010年第6期44-46,共3页Special Steel

摘　　要：IF钢在300 t RH脱碳处理前要求控制转炉终点[C]≤0.06%,终点[O]0.05%～0.08%,出钢温度1 680～1 700℃;吹氩站钢包顶渣的(FeO)和(CaO)/(Al_2O_3)分别由原来的12.2%和6.7降至5.0%和1.7,以增加其吸附夹杂的能力;根据生产数据,建立了RH脱碳操作的自动计算模型,有效提高RH精炼过程各项技术指标的命中率,使平均[O]和[C]分别由RH脱碳前的0.046%和0.031%降至RH脱碳终点的0.035 0%和0.001 3%。Before decarbonizing refining IF steel by a 300 t RH unit, it is required to control converter end [ C] 0. 06%, end [ O] 0. 05% - 0. 08% and taping temperature 1 680 - 1 700 ℃ ; at argon injection station the （FeO） and （ CaO）/（ Al2O3 ） of ladle slag are modified and decreased respectively from original 12. 2% and 6. 7 to 5.0% and 1.7 to increase its ability to adsorb inclusions. Based on production data, an auto-calculation model for RH decarburizing operation is established effectively to improve the percentage of hits of each technical index during RH refining, and the average [ O ] and [ C ] decrease respectively from 0. 046% and 0. 031% at the beginning of RH decarburizing to 0. 035 0% and 0.001 3% at end of RH decarburizing.

关 键 词：IF钢 生产实践 RH 脱碳模型 

分 类 号：TF769[冶金工程—钢铁冶金]