| IF钢全氧的控制与预测 |
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| 引用本文： | 王敏,包燕平,崔衡,吴维双,吴华杰.IF钢全氧的控制与预测[J].北京科技大学学报,2010,32(4). |
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| 作者姓名： | 王敏 包燕平 崔衡 吴维双 吴华杰 |
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| 作者单位： | 北京科技大学冶金与生态工程学院,北京,100083 |
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| 基金项目： | “十一五”国家科技计划资助项目(No.2006BAE03A06) |
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| 摘 要： | 分析了IF钢冶炼过程中渣对钢液中Al]、Ti]的氧化机理,在此基础上提出了IF钢加铝脱氧后全氧的预测模型.结果表明,熔渣中(FeO)、(MnO)对钢液的二次氧化存在两种方式.当氧化物在渣中的传质是反应限制性环节时,反应发生在渣/钢界面,生成的脱氧产物分布在渣/钢界面,此时渣的氧化性随时间呈指数下降;当脱氧元素在钢中传质是反应限制性环节时,反应发生在钢液内部.对某厂RH精炼渣的数据作回归得到RH加铝后渣的氧化性随时间指数变化的关系式.
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| 关 键 词： | IF钢 二次氧化 全氧 预测 传质 |
Control and prediction of total oxygen in IF steel |
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| WANG Min,BAO Yan-ping,CUI Heng,WU Wei-shuang,WU Hua-jie.Control and prediction of total oxygen in IF steel[J].Journal of University of Science and Technology Beijing,2010,32(4). |
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| Authors: | WANG Min BAO Yan-ping CUI Heng WU Wei-shuang WU Hua-jie |
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| Abstract: | The reoxidation mechanisms of IF steel containing Al and Ti by reducible oxides in the slag were analyzed.A model of predicting total oxygen in the molten steel was established based on the reoxidation mechanisms.It was found that two different reaction mechanisms existed when(FeO)and(MnO)in the slag reoxidated the molten steel.Reoxidation occurred at the slag/steel interface when mass transfer of reducible oxides in the slag dominated the reaction,and the oxidability of the slag exponentially declined with... |
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| Keywords: | IF steel reoxidation total oxygen prediction mass transfer |
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