马钢CSP冷轧板的转炉高效冶炼工艺

针对CSP冷轧板对C]、P]、ES]及钢水纯净度的高要求，以及转炉周期难以与CSP连铸周期匹配，文中论述了马钢对转炉冶炼工艺进行优化，开发适合马钢原料条件的吹炼模式，降低出钢P]、S]含量，采用炼钢动态控制提高终点命中率，开发全炉役底吹技术降低钢中活度氧，开发出直接出钢工艺，实现转炉周期与CSP连铸周期的良好匹配，2006年生产CSP冷轧板163万t，占CSP总产量的69％。

The BOF high efficient blowing process using on CSP cold rolling sheet producing

The optimizing of LD process was discussed in this paper due to the high demand of C], P], S] and steel cleanness on CSP cold rolling sheet and the unmatched convert cycle time with the CSP cycle time. Through optimizing the process model, the end P], S] aO] were reduced, the end C] and temp. Hitting ratio was increased, and the process of directly tapping was developed, the cycle time of convert and CSP was matched. In 2006 1.63 million ton cold rolled sheets was produced, nearly 69% of the total output of CSP.