Conclusions
A method for chamotte nozzles with protection of the bore with a zirconia concentratebase layer has been developed. The life of the nozzles with the protective layer is at least as good as the zirconia-graphite ones. It is desirable to use the double-layer nozzles in place of zirconia and zirconia-graphite nozzles in teeming of various types of steel.
The consumption of zirconia concentrate per unit of product is reduced by 10–12 times, which opens prospects of a significant increase in the volume of production of this new form of parts.
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Translated from Ogneupory, No. 1, pp. 54–56, January, 1986.
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Suvorov, S.A., Korobkin, S.L., Salamonova, T.A. et al. Double-layer nonswirl nozzles for continuous casting machine pony ladles. Refractories 27, 64–66 (1986). https://doi.org/10.1007/BF01398293
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DOI: https://doi.org/10.1007/BF01398293