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A test of synthetic mullite-corundum parts in the roof of an arc furnace

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Conclusions

Synthetic mullite-corundum parts produced by reaction interaction of corundum and quartzite in a single firing may be effectively used for lining the roof of medium-size electric arc steel melting furnaces, including of the DSP-100, with the condition that the Al2O3 in it is not less than 75 wt.%.

The indices of wear resistance of the synthetic mullite-corundum parts are also determined to a significant degree by the design of the lining of the electric furnace roof, in particular by the optimum distribution in the combined lining of the mullite-corundum refractories relative to the periclase-chromite ones.

In order of reduction of resistance to the melting reactants the minerals of the mullite-corundum parts are in the order corundum, mullite, cristobalite (quartz), and glassy phase.

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Literature cited

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Authors and Affiliations

  1. Eastern Refractory Institute, USSR

    T. I. Nazarova, V. I. Sizov, V. A. Perepelitsyn & V. M. Bezhaev

Authors
  1. T. I. Nazarova
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  2. V. I. Sizov
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  3. V. A. Perepelitsyn
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  4. V. M. Bezhaev
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Additional information

Translated from Ogneupory, No. 10, pp. 55–59, October, 1987.

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Nazarova, T.I., Sizov, V.I., Perepelitsyn, V.A. et al. A test of synthetic mullite-corundum parts in the roof of an arc furnace. Refractories 28, 600–605 (1987). https://doi.org/10.1007/BF01386647

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  • DOI: https://doi.org/10.1007/BF01386647

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