复吹转炉底吹氮对钢液终点氮含量影响研究  

INFLUENCE OF BOTTOM STIRRING NITROGEN ON END POINT NITROGEN CONTENT OF COMBINED BLOWN CONVERTER

作　　者：李明儒[1] 段贵生[1] 孙玉强[1] 石成刚[1] 

机构地区：[1]安阳钢铁集团有限责任公司

出　　处：《河南冶金》2006年第S1期45-47,共3页Henan Metallurgy

摘　　要：在120t转炉上进行的不同底吹供气强度和切换时间的全程底吹供氮实验,表明全程底吹供氮对钢液氮含量有增加的趋势,但增加量不大,约为4~10×10-6。由于氮气与氩气相比有较强的成本优势,在冶炼对氮含量要求不苛刻的钢种时可以采用全程底吹供氮。但为了减少对钢液的增氮,在满足吹炼要求的前提下,应尽可能减小底吹供气强度。The tests of different stirring intensity and alter time of the bottom stirring on 120t Combined blowing Converter(all time) show that all time stirring nitrogen can rise the nitrogen content about 4～10×10^(-6).Because the nitrogen is much cheaper than the argon,when melting the steel without strict N content,the all time nitrogen stirring can be used.To reduce the nitrogen increase in the liquid steel,It'd better to decrease the stirring intensity under the precondition of meeting the steelmaking requirements.

关 键 词：复吹转炉 底吹氮 钢液 氮含量 

分 类 号：TF729[冶金工程—钢铁冶金]