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邯钢邯宝炼钢厂在生产CR180BH钢过程中成品w(C)控制不准,主要原因是RH脱碳过量,使w(C)产生较大波动,且在过程增碳环节上把握不准。通过建立RH脱碳模型以及严格控制钢水进站条件,RH进站w(O)控制在0.05%~0.075%,进站w(C)控制在0.03%~0.05%,从而实现RH脱碳终点w(C)稳定控制;同时加强合金辅料检查,加强连铸用耐材质量管理,使w(C)得到精准的控制,成品w(C)稳定控制在0.002 0%~0.003 0%,成分命中率从86%提高到96%。
Handan Iron and Steel Handan Iron and Steel Plant in the production of CR180BH steel process finished w (C) control is not allowed, mainly due to excessive RH decarburization, so that w (C) have greater volatility, and in the process of carbon link uncertain . Through establishing RH decarburization model and strictly controlling molten steel entry conditions, RH entry w (O) is controlled at 0.05% -0.075%, and pit entry w (C) is controlled at 0.03% ~ 0.05% (C) stability control; the same time strengthen the inspection of alloy materials, strengthening the quality control of refractory material for continuous casting, so w (C) to be precisely controlled, the finished product w (C) stable control 0.002 0% ~ 0.003 0% From 86% to 96%.