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The durability of acoustically tested SP-11-type mullite-corundum stoppers

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Refractories Aims and scope

Conclusions

An investigation carried out at the Novolipetsk Metallurgical Plant of the performance of the SP-11-type mullite-corundum stoppers produced by the Semiluk Refractories Plant showed that the durability was highest in the case of stoppers with a resonance frequency of 10,000–12,000 Hz. The stoppers falling into that frequency range account for about 70% of the total output.

Culling out the stoppers with resonance frequencies below 10,000 and above 12,000 Hz and the “deaf” stoppers by acoustic testing increases the performance reliability of the stoppers of pony ladles and lengthens their useful life by 0.25 melt.

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Literature cited

  1. V. N. Boricheva, I. V. Vorontsova, N. K. Senyavin, et al., Ogneupory, No. 8, 9–14 (1975).

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Authors and Affiliations

  1. All-Union Institute of Refractories, USSR

    V. N. Boricheva, N. K. Senyavin, M. L. Pevzner, A. A. Mukhin, G. E. Karas', V. I. Éntin, A. P. Shapovalov & N. D. Karpov

  2. Semiluk Refractories Plant, USSR

    V. N. Boricheva, N. K. Senyavin, M. L. Pevzner, A. A. Mukhin, G. E. Karas', V. I. Éntin, A. P. Shapovalov & N. D. Karpov

  3. Novolipetsk Metallurgical Plant, USSR

    V. N. Boricheva, N. K. Senyavin, M. L. Pevzner, A. A. Mukhin, G. E. Karas', V. I. Éntin, A. P. Shapovalov & N. D. Karpov

Authors
  1. V. N. Boricheva
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  2. N. K. Senyavin
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  3. M. L. Pevzner
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  4. A. A. Mukhin
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  5. G. E. Karas'
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  6. V. I. Éntin
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  7. A. P. Shapovalov
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  8. N. D. Karpov
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Additional information

Translated from Ogneupory, No. 4, pp. 11–12, April, 1977.

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Boricheva, V.N., Senyavin, N.K., Pevzner, M.L. et al. The durability of acoustically tested SP-11-type mullite-corundum stoppers. Refractories 18, 201–203 (1977). https://doi.org/10.1007/BF01281598

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  • DOI: https://doi.org/10.1007/BF01281598

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