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Furnaces: Improving low cement castables by non-wetting additives

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Abstract

Aluminosilicate castables, which are widely used in aluminum transformation furnaces, are susceptible to chemical reactions between molten aluminum and the furnace refractory lining. To prevent those reactions, commercial additives such as BaSO4, CaF2, and AlF3 are generally added in castables. This article presents and analyzes the effect of various amounts of the above additives as well as the influence of pre-firing temperatures on the corrosion behavior of an aluminosilicate low cement castable matrix in contact with liquid Al-5%Mg alloy.

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Authors and Affiliations

  1. the Department of Engineering Physics & Materials Engineering at CIREP-CRNF, Ecole Polytechnique of Montreal (CRIQ campus), Canada

    Saied Afshar & Claude Allaire

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  1. Saied Afshar
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  2. Claude Allaire
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For more information, contact C. Allaire, CIREPCRNF, Ecole Polytechnique of Montreal (CRIQ campus), Department of Engineering Physics & Materials Engineering, 8475 Christophe Colomb Street, Montreal, QC H2M 2N9, Canada; (514) 858-6476; fax (514) 858-6469; e-mail claude.allaire@courriel.polymtl.ca.

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Afshar, S., Allaire, C. Furnaces: Improving low cement castables by non-wetting additives. JOM 53, 24–27 (2001). https://doi.org/10.1007/s11837-001-0130-8

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  • DOI: https://doi.org/10.1007/s11837-001-0130-8

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