RH精炼过程钢水增氮控制技术研究  

Study on Nitrogen Pick-up During RH Treatment

作　　者：张伟龙 周敏达 黄财德[1] 郭小龙[1] Zhang Weilong;Zhou Minda;Huang Caide;Guo Xiaolong(Shougang Jingtang United Iron and Steel Co.,Ltd.,Tangshan Hebei 063200,China)

机构地区：[1]首钢京唐钢铁联合有限责任公司,河北唐山063200

出　　处：《山西冶金》2023年第8期188-189,194,共3页Shanxi Metallurgy

摘　　要：在RH精炼过程中,钢水中的碳和氧含量、真空度、浸渍管内耐火材料布局对钢液增氮有显著影响,基于此,具体分析各影响因素对钢液中氮含量的影响机理,针对性地提出RH增氮控制措施和设备优化方案,使得RH工序能够稳定有效地控制增氮。经实践表明,采取相关措施后,RH最低增w[N]可控制在3×10^(-6),RH增w[N]小于8×10^(-6)的炉次占比可达90%以上。The researches show that the carbon content,oxygen content,vacuum pressure and refractory of RH snorkel effect the nitrogen pick-up of molten steel during RH processing.Thus,the control measures of nitrogen pick-up and equipment optimization schemes were proposed,so that the nitrogen pick-up of molten steel during RH processing was controlled effectively.The minimum nitrogen pick-up during RH processing can be controlled within 3×10^(-6),and the proportion of heats that the nitrogen pick-up are less than 8×10^(-6) can reach more than 90%.

关 键 词：RH 增氮 浸渍管 真空度 优化措施 

分 类 号：TF703.5[冶金工程—钢铁冶金]