摘要
针对LF精炼存在的缺少不同品种钢科学合理的目标渣系,精炼过程成渣速度慢、渣系组分波动大等问题,分钢种确定精炼窄成分渣系;在转炉终点实施动态脱氧和顶渣处理,稳定进LF精炼钢水氧化性;采用硅平衡法稳定控制炉渣组分。该工艺技术的应用使得上下炉次精炼渣碱度波动在0.5以内,夹杂物总级别≤2.0合格率达到95%以上。
In order to solve the problem of the lack of scientific and reasonable target slag system for different varieties of steel, and to solve the problems of slow slag speed and large fluctuation of slag components in the refining process, the narrow composition slag system was determined for different varieties of steel in the refining process. At the end of the converter, dynamic deoxidization and slag treatment process are applied to stabilize the oxidation of LF refining steel. The composition of slag is controlled by silicon equilibrium method. The application of this technology makes the fluctuation of the alkalinity of the secondary refining slag in the upper and lower furnaces within 0.5, and the total level of inclusions is less than 95%.
出处
《山东冶金》
CAS
2017年第6期9-11,14,共4页
Shandong Metallurgy
关键词
精炼渣系
窄成分控制
碱度
夹杂物
refining slag system
narrow component control
alkalinity
inclusion
process control
