摘要
针对由于圆管坯钢水成分命中率偏低、钢水P、S含量偏高、内部气体和夹杂物含量偏高、影响高等级钢的开发等问题进行了分析。通过提高转炉脱磷率,优化脱氧剂的构成和加入方法,精心调整化学成分、优化精炼过程氩气调节等一系列措施的实施,使转炉、LF炉冶炼工艺得到优化和控制,大幅降低了钢中P、S含量、气体含量和夹杂物含量,稳定了钢中Al含量,提高了钢水成分命中率,有效地改善了供圆管坯钢水的内部质量,促进了圆管坯产品的不断开发成功。
The paper analyzes the problems of low composition target hit rate, high phosphorus and sulfur contents, high gas content and big number of inclusions of or in melting steel for round pipe billet which all affected the development of high grade steel. A series of measures were implemented such as increasing converter dephosphorization rate, optimizing deoxidizer component and adding method, elaborately adjusting chemical composition and optimizing argon blowing in refining, so that converter and LF melting process was optimized and well controlled, resulting in much lower phosphorus and sulfur contents, lower gas content and fewer inclusions, steady aluminum content and higher composition target hit rate. In short, the internal quality of melting steel for pipe billet was effectively improved which have been promoted the development of various billet products increasingly.
出处
《天津冶金》
CAS
2011年第6期4-6,60,共3页
Tianjin Metallurgy
关键词
管坯
冶炼
造渣
化学成分
夹杂物
工艺
优化
pipe billet, smelting, slagging, chemical composition, inclusion, process, optimization
