Alumina-spinel castable has excellent refractory properties, including high volume and thermal stability, good hot strength, and excellent resistance against corrosion, erosion, and thermal spalling. Excellent refractory properties have made it a preferred lining for steel ladles, reducing the erosion and corrosion of molten metal and slag and improving the ladle life and efficiency for decades. These castables are also significant for the replacement of chrome-bearing refractories that cause several health hazards. The current review paper covers preformed and in situ spinel containing alumina castables. It focuses on the importance of these castables in the sidewall and bottom portion of the steel ladle in detail, the effect of spinel and MgO content, and the factors affecting castable properties. The review also covers the final properties of castable and the application areas of alumina-spinel castable in steel ladle, purging plugs, and RH-degasser.

中文翻译：

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用于钢包的氧化铝尖晶石浇注料：概述

氧化铝尖晶石浇注料具有优异的耐火性能，包括高体积和热稳定性、良好的热强度以及优异的抗腐蚀、侵蚀和热剥落性。几十年来，优异的耐火性能使其成为钢包的首选内衬，减少金属液和熔渣的侵蚀和腐蚀，提高钢包寿命和效率。这些浇注料对于替代会造成多种健康危害的含铬耐火材料也很重要。当前的审查文件涵盖了含氧化铝浇注料的预成型和原位尖晶石。详细介绍了这些浇注料在钢包侧壁和底部的重要性、尖晶石和 MgO 含量的影响以及影响浇注料性能的因素。