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首页> 外文期刊>ISIJ international >Reactions Between MgO-C Refractory, Molten Slag and Metal
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Reactions Between MgO-C Refractory, Molten Slag and Metal

机译：MgO-C耐火材料，熔渣与金属之间的反应

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摘要

The behavior of MgO-C refractory-slag-metal system, which is caused by the reactions such as the dissolution of MgO and graphite in the refractory into slag and metal respectively and the generation of gas bubbles, was observed directly by using a high temperature X-ray radiographic apparatus and analysed theoretically. The local corrosion is regarded as due to the cyclic dissolution of MgO and graphite in the refractory into slag and metal phase respectively. The local corrosion is greatly influenced by the generation position of gas bubbles and the number of gas bubbles generated. Bubbles generated in the refractory-slag-metal three-phase boundary restrain the local corrosion, while bubbles generated at the refractory-metal interface enhance the local corrosion. Gas bubbles form mainly according to the reaction between (FeO) in the slag film and C_(S) in the refractory contacting with the lag film: (FeO) = C_(s) = Fe(1) = CO_(g). Some fundamental principles to improve MgO-C refractory were put forward.
机译：通过使用高温直接观察到MgO-C耐火矿渣-金属系统的行为，该行为是由MgO和石墨分别在耐火材料中溶解为矿渣和金属以及气泡的产生等反应引起的X射线照相设备并进行了理论分析。认为局部腐蚀是由于MgO和石墨分别在耐火材料中循环溶解成炉渣和金属相。气泡的产生位置和产生的气泡数目极大地影响了局部腐蚀。在耐火渣-金属三相边界中产生的气泡抑制了局部腐蚀，而在耐火金属界面上产生的气泡增强了局部腐蚀。气泡的形成主要取决于渣膜中的（FeO）和耐火材料与渣膜接触时的C_（S）之间的反应：（FeO）= C_（s）= Fe（1）= CO_（g）。提出了改善MgO-C耐火材料的一些基本原则。

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