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介绍了攀钢板坯连铸在提高拉速的同时所采取的钢水净化措施 :钢包渣改性处理及优化底吹氩参数、中间包内型结构优化及碱性化、浸入式水口结构优化等 ,在高拉速条件下 ,低碳铝镇静钢连铸板坯中T[O]含量达到平均 1 5.2× 1 0 - 6,大颗粒夹杂含量为 3.79mg/1 0 kg。
This paper introduces the measures to purify molten steel at the same time of increasing the drawing speed of slab continuous casting in Panzhihua Iron and Steel (Group) Co., Ltd .: modification of ladle slag and optimization of bottom blowing argon parameters, optimization of inner structure of tundish and alkalization, optimization of submerged nozzle structure , The T [O] content of low carbon aluminum killed steel continuous casting slab reaches an average of 5.2 × 10 ~ 6 and the inclusion content of large particles is 3.79mg / 1 0 kg under the condition of high drawing speed.