转炉工序冶炼低氮品种钢中氮含量的控制  

CONTROL OF NITROGEN CONTENT IN LOW NITROGEN STEEL BY CONVERTER PROCESS

作　　者：赵贝贝 

机构地区：[1]河钢集团宣钢公司二轧厂,河北宣化075100

出　　处：《河北冶金》2017年第12期40-42,共3页Hebei Metallurgy

摘　　要：分析了150 t转炉冶炼低氮品种钢的入炉原料,吹炼过程、脱氧合金化及钢包、出钢时间等对钢中氮含量的影响。控制转炉吹炼终点氧含量≤0.08%,采用氮气和氩气切换吹炼,控制补吹氧流量、先合金化再脱氧等方法,能够降低钢中的含氮量,提高了钢水质量。The influence of raw material,blowing process,deoxidization alloying,ladle and tapping time on the nitrogen content of low nitrogen steel smelted by 150 t converter was analyzed. The oxygen content at blowing end point is controlled at less than 0. 08%. The nitrogen content in steel was reduced and the quality of molten steel was improved by the means of nitrogen and argon switching blowing,controling the oxygen supplement flow,alloying first and then deoxidization.

关 键 词：转炉工序 冶炼 低氮品种钢 氮含量 控制 

分 类 号：TF704.1[冶金工程—钢铁冶金]