| IF钢板坯连铸结晶器内钢液流场的模拟与优化 |
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| 引用本文： | 冯巍,朱传运,李德强,刘承军,姜茂发. IF钢板坯连铸结晶器内钢液流场的模拟与优化[J]. 中国冶金, 2008, 17(12) |
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| 作者姓名： | 冯巍 朱传运 李德强 刘承军 姜茂发 |
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| 作者单位： | 1.东北大学材料与冶金学院，辽宁 沈阳 110004；2.本溪钢铁集团公司技术中心，辽宁 本溪 117000 |
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| 摘 要： | 以本溪钢铁公司炼钢厂板坯连铸结晶器为研究对象，通过物理模拟系统研究了水口吹气量、水口插入深度对连铸结晶器内气泡运动行为、液面波动及卷渣行为的影响作用，并在此基础上优化设计了连铸工艺参数。工业试验结果表明，经优化后连铸坯表层中含氧化钠（Na2O）、氧化钾（K2O）等保护渣成分的CaO Al2O3 SiO2 MgO系球状夹杂物基本消失，IF钢连铸坯中非金属夹杂物含量明显降低。
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| 关 键 词： | IF钢；结晶器；水口吹氩；物理模型；非金属夹杂物 |
Modelling and Optimizing of Flow Field of Molten Steel inMold for IF Steel Slab |
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| FENG Wei,ZHU Chuan yun,LI De qiang,LIU Cheng jun,JIANG Mao fa. Modelling and Optimizing of Flow Field of Molten Steel inMold for IF Steel Slab[J]. China Metallurgy, 2008, 17(12) |
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| Authors: | FENG Wei ZHU Chuan yun LI De qiang LIU Cheng jun JIANG Mao fa |
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| Affiliation: | 1.School of Materials and Metallurgy, Northeastern University, Shenyang 110004, Liaoning, China；2.Technology Center, Benxi Iron and Steel Group Co, Benxi 117000, Liaoning, China |
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| Abstract: | According to the mold for slab caster in Steelmaking Plant of Benxi Iron and Steel Company, a physical model was established to study the effects of the gas flow rate, the immersion depth on pattern of bubble movement, surface fluctuation and slag entrapment. Then the optimization of the technological parameter was presented. The results of industrial experiment indicated that the spheric CaO Al2O3 SiO2 MgO inclusions, which contained the compositions of the mold powder such as Na2O and K2O, had disappeared in the surface layer of slab after the optimization. The content of non metallic inclusions in IF steel slab evidently reduced. |
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| Keywords: | IF steel；mold；nozzle argon injection；physical model； non metallic inclusions |
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