摘要:简要介绍了CSP薄板坯连铸工艺全程控氮的原理.通过试验测量了不同底吹工艺条件下转炉钢水及经过LF炉处理后钢水的w(N).满足钢水质量对降氮要求应采取的措施有:底吹时氮氩切换的适宜时间约10 min;LF炉精炼工艺要求埋弧操作并控制炉内气氛;大包与中包间钢水用长水口浇铸、氩气密封和实施保护浇铸等.
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