RH冶炼超低碳钢脱碳机理研究  

Mechanism of surface and splash droplet decarburization of RH treatment for ultra-low carbon steel

作　　者：李崇巍[1] 成国光[1] 王新华[1] 朱国森[2] 崔爱民[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]首钢集团迁钢有限责任公司,河北唐山064400

出　　处：《炼钢》2011年第5期35-38,43,共5页Steelmaking

基　　金：国家"十一五"支撑计划资助项目([2009]2054)

摘　　要：通过RH真空处理脱碳数学模型研究了钢液表面以及飞溅液滴表面的脱碳机理。模型计算结果表明,真空度是影响表面脱碳以及飞溅液滴脱碳反应进行的主要因素;真空处理9min以后,飞溅液滴脱碳占据优势,脱碳结束时其脱碳量比例高达72%;表面脱碳以及飞溅液滴的累计脱碳量比例分别为18.7%,24.4%,加在一起达到43.1%,在整体脱碳过程当中占据比较重要的地位。The mechanism of hot metal surface decarburization and splash droplet surface decarburization has been studied by a decarburization math model for RH vacuum treatment. Model calculation results show that vacuum degree is the primary factor affecting the surface decarburization reaction of the hot metal and splash droplets; splash droplets decarburization dominates 9 minutes after vacuum treatment and at the end of decarburization the quantity of decarhurization reaches as high as 72 % ; the quantity of hot metal surface decarburization and the aggregated quantity of the splash droplets decarburization is 18.7 % and 24. 4 % and the total of them comes up to 43. 1%. They play an important role in the overall process of decarburization.

关 键 词：RH真空处理 表面脱碳 液滴脱碳 

分 类 号：TF769.4[冶金工程—钢铁冶金]