In order to precisely control the final temperature of molten steel in RH （Ruhrstahl Heraeus）-TOP blowing refining, the final temperature prediction models of molten steel in RH-TOP blowing refining process for Inte...In order to precisely control the final temperature of molten steel in RH （Ruhrstahl Heraeus）-TOP blowing refining, the final temperature prediction models of molten steel in RH-TOP blowing refining process for Interstitial Free （IF） steel production were established under the condition of oxygen blowing and non-oxygen blowing respec- tively. The results show that the beginning molten steel temperature of refining and the amount of added scrap were influential factors, the baking temperature in vacuum chamber was a factor that had small influence. When the model was operated, the hitting probability was above 95%（under the condition of both oxygen blowing and non-oxygen blo- wing） of prediction deviation ±10℃. The accuracy is analyzed.展开更多
用顶吹 CO2 - Na OH溶液体系模拟了 RH- KTB顶吹氧溶氧过程。通过对碱液吸收 CO2 反应动力学的研究 ,考察了操作参数对 RH- KTB顶吹氧脱碳过程中溶氧反应的影响。结果表明 :提高气相中氧分压、增加提升氩气流量或采用低枪位喷吹都有利...用顶吹 CO2 - Na OH溶液体系模拟了 RH- KTB顶吹氧溶氧过程。通过对碱液吸收 CO2 反应动力学的研究 ,考察了操作参数对 RH- KTB顶吹氧脱碳过程中溶氧反应的影响。结果表明 :提高气相中氧分压、增加提升氩气流量或采用低枪位喷吹都有利于加速溶氧脱碳。实验中还发现 :顶吹氧气流量对容积传质系数影响很小 。展开更多
基金Sponsored by National Key Technology Research and Development Program in 11th Five-Year Plan of China(2006BAE03A06)
文摘In order to precisely control the final temperature of molten steel in RH （Ruhrstahl Heraeus）-TOP blowing refining, the final temperature prediction models of molten steel in RH-TOP blowing refining process for Interstitial Free （IF） steel production were established under the condition of oxygen blowing and non-oxygen blowing respec- tively. The results show that the beginning molten steel temperature of refining and the amount of added scrap were influential factors, the baking temperature in vacuum chamber was a factor that had small influence. When the model was operated, the hitting probability was above 95%（under the condition of both oxygen blowing and non-oxygen blo- wing） of prediction deviation ±10℃. The accuracy is analyzed.
文摘用顶吹 CO2 - Na OH溶液体系模拟了 RH- KTB顶吹氧溶氧过程。通过对碱液吸收 CO2 反应动力学的研究 ,考察了操作参数对 RH- KTB顶吹氧脱碳过程中溶氧反应的影响。结果表明 :提高气相中氧分压、增加提升氩气流量或采用低枪位喷吹都有利于加速溶氧脱碳。实验中还发现 :顶吹氧气流量对容积传质系数影响很小 。
