| RH脱碳过程中极低氧钢水的碳氧反应机理 |
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| 引用本文： | 李朋欢,包燕平,岳峰,彭尊,袁晓峰.RH脱碳过程中极低氧钢水的碳氧反应机理[J].北京科技大学学报,2011(7):823-827. |
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| 作者姓名： | 李朋欢 包燕平 岳峰 彭尊 袁晓峰 |
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| 作者单位： | 北京科技大学冶金与生态工程学院;北京科技大学冶金工程研究院; |
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| 基金项目： | “十一五”国家科技支撑计划资助项目(No.2006BAE03A06) |
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| 摘 要： | BOF+LF+RH+CC工艺路线生产IF钢,在RH脱碳前,钢水经脱氧和LF精炼后,钢中自由氧达到极低水平.根据表观脱碳速率常数的不同,这种极低氧钢水的RH脱碳可以划分为四个阶段.与传统三个阶段的RH脱碳不同的是在低速脱碳阶段和快速脱碳阶段存在一个脱碳速率介于两者之间的过渡阶段.在正规溶液模型的基础上,建立了能够准确预报钢液氧含量及顶渣FeO含量的RH脱碳模型.结果表明:在RH吹氧前,极低氧含量的钢液与顶渣之间基本不传氧;吹氧之后,钢液氧含量呈线性增加,当钢液氧势大于顶渣氧势后,钢液向顶渣传氧,渣中FeO含量上升;RH处理结束FeO含量较处理初始有所回升,但是仍处于极低水平,能够有效降低顶渣对钢液的二次氧化.
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| 关 键 词： | 低碳钢 精炼 脱碳反应 渣 |
Mechanism of carbon and oxygen reaction in RH decarburization of ultra low oxygen steel |
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| LI Peng-huan,BAO Yan-ping,YUE Feng,PENG Zun,YUAN Xiao-feng School of Metallurgical , Ecological Engineering,University of Science , Technology Beijing,Beijing ,China Engineering Research Institute,China.Mechanism of carbon and oxygen reaction in RH decarburization of ultra low oxygen steel[J].Journal of University of Science and Technology Beijing,2011(7):823-827. |
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| Authors: | LI Peng-huan BAO Yan-ping YUE Feng PENG Zun YUAN Xiao-feng School of Metallurgical Ecological Engineering University of Science Technology Beijing Beijing China Engineering Research Institute China |
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| Institution: | LI Peng-huan1),BAO Yan-ping1),YUE Feng2),PENG Zun2),YUAN Xiao-feng2) 1) School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing,Beijing 100083,China 2) Engineering Research Institute,China |
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| Abstract: | As for the IF steel making process of BOF+LF+RH+CC,the free oxygen content drops to a minimum level after deoxidization and LF refining,and right before RH decarburization.The RH decarburization reaction of steel with extreme low oxygen can be divided into four stages in terms of the apparent decarburization rate constant.Differed from traditional three-stage RH treatment,a transitional stage with medial decarburization occurs between the low and high decarburization stages.Based on the regular solution mod... |
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| Keywords: | low carbon steel refining decarburization slags |
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