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首页> 外文期刊>Ironmaking & Steelmaking >Mass transfer behaviour of Mg in low carbon aluminium killed steel during LF refining
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Mass transfer behaviour of Mg in low carbon aluminium killed steel during LF refining

机译：LF精炼期间MG在低碳铝中杀死钢的传质行为

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摘要

Inclusions containing Mg existed in low carbon aluminium killed steel even though Mg is not added during LF treatment. To investigate the mass transfer mechanism of Mg in low carbon aluminium killed steel, both industrial practice and kinetic calculations were carried out in the present work. The results from industrial practice showed that Mg concentration in molten steel and inclusions increased with refining time during ladle furnace treatment. The inclusion size tended to become smaller with the increase of Mg concentration in the inclusions. The erosion rate of refractory with different composition was tallied. A refractory-slag-metal-inclusion multiphase reaction model was developed to investigate mass transfer mechanism underlying the variation of Mg among the steel, the slag, inclusions and the refractory. The calculated results exhibited a good predictability of the content of Mg in the molten steel, slag and inclusions. The results showed that Mg dissolved into molten steel in two ways: the first is in the way of slag/steel reaction, the second is in the way of refractory erosion which is the main way.
机译：即使在LF处理期间没有添加Mg，含有Mg的含量存在于低碳铝杀死的钢中。为了研究MG在低碳铝造成钢中Mg的传质机制，在目前的工作中进行了工业实践和动力学计算。工业实践的结果表明，钢水炉治疗期间的钢水和夹杂物中的Mg浓度增加。随着夹杂物中的Mg浓度的增加，夹杂物尺寸趋于变小。突出了不同组成的耐火腐蚀速率。开发了一种耐火熔渣金属包含多相反应模型，以研究钢，炉渣，夹杂物和耐火材料的MG变化的质量转移机制。计算结果表现出钢水，炉渣和夹杂物中Mg含量的良好可预测性。结果表明，Mg以两种方式溶于钢水中：首先是炉渣/钢反应的方式，第二个是令人难以腐蚀的方式。

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