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Cement-free spinel-based refractory materials

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Refractories and Industrial Ceramics Aims and scope

Abstract

Channel induction furnaces can operate at temperatures as high as 2000 °C, which requires the use of high-temperature refractory materials resistant to corrosion. CaO, a conventional component of the corundum-containing refractory castables, produces a degrading effect on high-temperature properties; for this reason, low-and ultralow cement materials fail to meet the needed requirements. Therefore a cement-free refractory of the DALCAST series in the Al2O3-MgO binary system based on an Al2O3 fully hydratable binder has been developed. Physical properties (strength and hardening behavior) of a standard low-cement castable and a newly developed product based on the results of their practical use in channel induction furnaces are compared and discussed.

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Authors and Affiliations

  1. Eisenberger Klebsandwerke (EKW) GmbH, Germany

    D. Cölle, M. Jung & H. Gross

  2. Gruppa Magnezit Joint-Stock Co., Russia

    A. Belyanin

Authors
  1. D. Cölle
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  2. M. Jung
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  3. H. Gross
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  4. A. Belyanin
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Translated from Novye Ogneupory, No. 6, pp. 95–98, June, 2005.

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Cölle, D., Jung, M., Gross, H. et al. Cement-free spinel-based refractory materials. Refract Ind Ceram 46, 256–259 (2005). https://doi.org/10.1007/s11148-006-0020-2

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  • DOI: https://doi.org/10.1007/s11148-006-0020-2

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