Appetite for new steel grades drives demand for high-performance refractories
- Autores: Liz Gyekye
- Localización: Industrial Minerals, ISSN 0019-8544, Nº. 576, 2015 (Ejemplar dedicado a: Octubre)
- Idioma: inglés
- Texto completo no disponible (Saber más ...)
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Resumen
Notable examples of progression in steel technology are basic oxygen furnaces (BOF) replacing open hearth furnaces, the introduction of continuous casting and the growth of secondary metallurgy performed in steel ladles, according to [Andreas Buhr].
Buhr noted that refractories for steel ladle side walls must also be able to withstand slag attack by aggressive, metallurgical reactive slag - for example, calcium-aluminate slag (CaO/Al[subscript]2 O[subscript]3 ).
As silica-containing high alumina refractories, such as andalusite or bauxite, show higher wear rates with aggressive, low-melting CaO/Al[subscript]2 O[subscript]3 slag, there has been a trend towards HPA spinel refractories replacing andalusite and bauxite in ladle linings, Buhr said.
