摘要
对低碳铝镇静钢种生产过程中转炉终点、转炉出钢后、精炼进出站后、浇注过程等关键控制点取钢水试样,利用氧氮分析仪对其氮含量进行分析研究,发现了增氮量较大的两个环节,即连铸浇注过程和LF精炼处理过程。进一步分析研究了顶渣改质物料、除尘风机开度、吹氩控制等因素对钢液中氮含量的影响,通过制定相关措施,钢中氮含量≤40×10^(-6),占比由原来的75%提升至90%以上。
Molten steel samples were taken from key control points during the production of low carbon aluminum killed steel,such as the end point of the converter,after the converter steel exit,after the refining station and pouring process.Nitrogen content of the samples was analyzed and studied by oxygen and nitrogen analyzer.Two links with high nitrogen increase were found,namely,continuous casting casting process and LF refining process.Through further analysis and research on the influence of slag modification material,dust removal fan opening,argon blowing control and other factors on the content of nitrogen in liquid steel,through the formulation of relevant measures,nitrogen content in steel≤40×10^(-6),the proportion of the original 75%increased to more than 90%.
作者
高振伟
李洪波
孟凡超
赵亚飞
GAO Zhen-wei;LI Hong-bo;MENG Fan-chao;ZHAO Ya-fei(Wu'an Yuhua Iron and Steel Co.Ltd.,Handan 056300,China;Hebei Cold Forming Steel Technology Innovation Center,Handan 056300,China)
出处
《甘肃冶金》
2023年第2期39-42,共4页
Gansu Metallurgy
关键词
转炉
精炼
钢水
保护浇注
氮含量
converter
refine
molten steel
protective pouring
nitrogen content
