摘要
针对高钢级管线钢生产过程中钢水氧化物夹杂过多而导致水口堵塞的问题,通过优化脱氧、精炼造渣、吹氩、钙处理等关键工艺,w[O]从出钢脱氧后14.1~28.4ppm下降到4.1~6.8ppm,不稳定氧化物w(FeO+MnO)<1%,有效降低钢水中氧化物夹杂;并且通过控制[S]、[Al]含量后,进行钙处理,难以上浮的氧化物夹杂变为易于上浮的液态钙铝酸盐。
In view of the problem of excessive inclusion of molten steel oxides in the production process of high-grade pipeline steel, which leads to the blockage of the nozzle, by optimizing the key processes such as deoxidation, refining and slagging, argon blowing, and calcium treatment, w[O] is decreased from 14.1~28.4 ppm to 4.1~6.8 ppm, unstable oxide w(FeO+MnO)is to be<1%, oxide inclusions in molten steel is reduced effectively;and by controlling [S], [Al], calcium treatment is performed, and the oxide inclusion that is difficult to float becomes a liquid calcium aluminate that is easy to float.
作者
王运
周渝
张洪坤
曾瀚
喻凯文
Wang Yun;Zhou Yu;Zhang Hongkun;Zeng Han;Yu Kaiwen(Pangang Group Xichang Steel&Vanadium Co.,Ltd(Xichang Steel and Vanadium Co.,Ltd.,Pangang Group))
出处
《特钢技术》
CAS
2021年第4期38-41,共4页
Special Steel Technology
关键词
高钢级管线钢
氧化物夹杂
控制
high-grade pipeline steel
oxide inclusion
control
