Conclusions
High-density periclase-spinel refractories can be produced from a body of magnesite powder containing 94–96% magnesium oxide and Kempirsai chromite by high-pressure molding and high-temperature firing in a tunnel kiln. The product is strong with good thermal stability and high onset temperature of deformation under a load. The structure of the refractory is improved as a result of the formation of a large proportion of direct intergranular bonds between the periclase and spinel.
It is planned to produce experimental industrial-scale batches of periclase-spinel roof refractories and to subject them to trials in the roof of open-hearth furnaces in continuous operation.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
Literature cited
S. M. Zubakov, A. L. Dyukov, G. V. Kononenko, et al., Trans. Institute of Metallurgy and Ore Concentration of the Academy of Sciences of the Kazakh SSR [in Russian], Vol. 38, Alma-Ata, Nauka (1970), pp. 22–43.
S. M. Zubakov, G. V. Kononenko, M. B. Zil'bershtein, et al., Technology and Performance of Periclase-Spinel Refractories [in Russian], Moscow, VINITI Report No. 1910-70.
S. M. Zubakov, Ogneupory, No. 8, 355–359 (1954).
A. S. Berezhnoi, Ogneupory, No. 4, 213–222 (1954).
P. P. Budnikov, A. S. Berezhnoi, I. A. Bulavin, et al., Technology of Ceramics and Refractories [in Russian], editor P. P. Budnikov, Moscow, Gosstroiizdat (1962), 707 pages.
Author information
Authors and Affiliations
Additional information
Translated from Ogneupory, No. 8, pp. 39–44, August, 1973.
Rights and permissions
About this article
Cite this article
Zubakov, S.M., Pivovarov, E.M. & Kononenko, G.V. Production technology of high-density periclase-spinel roof materials. Refractories 14, 500–504 (1973). https://doi.org/10.1007/BF01284419
Issue Date:
DOI: https://doi.org/10.1007/BF01284419