炼钢 ›› 2017, Vol. 33 ›› Issue (6): 1-1.
• 转炉及电炉冶炼 • 下一篇
赵 雷，王金辉，徐国义，尹宏军，王富亮，金百刚
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摘要： 结合复吹转炉脱磷原理，针对鞍钢股份有限公司鲅鱼圈分公司炼钢部铁水平均w(P)高达0.12 %的现状，综合考虑设备布置等因素，自主开发了复吹转炉的两炉法（脱磷炉+脱碳炉）冶炼极低磷钢种技术。在应用实践中，通过优化脱磷炉和脱碳炉的两炉法脱磷工艺参数，实现了深脱磷的目的。脱磷炉脱磷率高达85 %，半钢平均w(P)=0.018 %；脱碳炉冶炼终点钢水平均w(P)=0.001 2 %；成品钢中平均w(P)＜0.002 0 %，实现了极低磷钢的批量稳定生产。
关键词: 极低磷钢, 脱磷, 两炉法, 复吹转炉
Abstract: Two converter methods (dephosphorization converter + decarburized converter) were used to produce super low phosphorus steel according to the dephosphorization mechanism in the high phosphorus (0.12 %) hot metal conditions of Ansteel Bayuquan steelmaking department. The process parameters in dephosphorization converter and decarburized converter for two converter methods were researched in application process. The pre-smelting dephosphorization rate was controlled above 85 %, and the average phosphorus mass fraction was controlled in 0.018 % in dephosphorization furnace. The average phosphorus mass fraction was controlled in 0.001 2 % at smelting end-point. The average phosphorus mass fraction in the end product was controlled below 0.002 0 %. And the mass production of super low phosphorus steel under the condition of high phosphorus hot metal was realized.
Key words: super low phosphorus steel, dephosphorization, two converter method, combined blowing, converter
赵 雷，王金辉，徐国义，尹宏军，王富亮，金百刚. 260 t转炉冶炼极低磷钢的生产实践[J]. 炼钢, 2017, 33(6): 1-1.
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http://journal05.magtechjournal.com/Jwk3_gt/lg/CN/Y2017/V33/I6/1
