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首页> 外文期刊>CERAMICS INTERNATIONAL >Influence of ladle slag composition in the dissolution process of the dicalcium silicate (C2S) layer on doloma-C refractories
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Influence of ladle slag composition in the dissolution process of the dicalcium silicate (C2S) layer on doloma-C refractories

机译：钢包渣组合物在氯肟耐力硅酸盐（C2s）层溶出过程中的影响

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摘要

Understanding the role of dicalcium silicate (C2S) in the corrosion mechanism of doloma-C refractory during the steel refining process is very important to maximize the performance of these refractories and to ensure the technical requirements of quality and operational safety. In industrial practice the spontaneous formation of dicalcium silicate phase (C2S) on doloma-C brick protects the refractory from slag penetration and is an example of protection by passive corrosion. However, fluxing compounds present in the slag, such as, Al2O3, CaF2 and FeOn can accelerate the dissolution of the C2S layer by the formation of phases of lower melting temperature. Specifically, the influence of the fluxing oxide quantities and the reaction temperature of the phase formation, which leads to melting/dissolution of the C2S, was studied. The thermodynamic simulation (FactSage software) was performed to better understand the reactions aforementioned, and this data was validated through testing in a laboratory furnace with precise control of temperature and atmosphere. The results provide important information to the understanding of the phenomena involved and the optimization of industrial practice.
机译：了解硅酸二钙（C2S）在钢精炼过程中耐摩洛-C耐火腐蚀机制的作用非常重要，可以最大限度地提高这些耐火材料的性能，并确保质量和操作安全的技术要求。在工业实践中，Doloma-C砖上的二钙相（C2s）的自发形成保护炉渣渗透的耐火材料，是通过被动腐蚀的保护的一个例子。然而，在炉渣中存在的助熔剂化合物，例如Al 2 O 3，CaF 2和Feon可以通过形成较低熔化温度的相加速C2S层的溶解。具体地，研究了助熔剂量和相形成的反应温度的影响，这导致C2s的熔化/溶解。进行热力学模拟（Factsage软件）以更好地理解上述反应，通过在实验室炉中测试具有精确控制温度和大气的测试。结果为了解涉及现象和工业实践的优化的理解提供重要信息。

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