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Roller diagnostics in hot-rolling mills on the basis of the coercive force

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Abstract

Magnetic diagnostics of the working layer on rollers is considered. A diagnostic method is proposed on the basis of the coercive force (the residual magnetization of the material) and employed by means of the robotized Valok 2000 diagnostic complex. The diagnostic results are presented in graphical and numerical form, by means of charts of roller properties. The basic approach to interpretation of the magnetic charts is outlined. Sample charts are presented for rotors with various defects. The potential of magnetic diagnostics in intake and periodic monitoring of the rollers is demonstrated. The stability of roller manufacture and subsequent roller operation may be assessed by this means. The results permit the identification of rollers with problems, reduction in the accident rate, and optimization of roller preparation.

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References

  1. Bezlyud’ko, G.Ya., Muzhitskii, V.F., Krutikova, L.A., et al., Assessing the State and Remaining Life of Rollers on the Basis of Magnetic Nondestructive Monitoring (in Terms of the Coercive Force), Defektoskopiya, 2002, no. 4, p. 3.

  2. Murikov, S.A., Artem’ev, I.A., Urtsev, V.N., et al., Robotized Magnetic Diagnostic Complex for Rollers, Sovrem. Tekhnol. Avtomat., 2010, no. 3, p. 66.

  3. Nichipuruk, A.P., Bida, G.V., Tsar’kova, T.P., et al., Reducing the Influence of the Gap on the Coercive-Force Measurements in Taking Account of the Converter Properties, Defektoskopiya, 2010, no. 8, p. 45.

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Authors and Affiliations

  1. Ausferr Research Center, Magnitogorsk, Russia

    S. A. Murikov, I. A. Artem’ev, E. S. Murikov & V. N. Urtsev

  2. Institute of Metal Physics, Ural Branch, Russian Academy of Sciences, Yekaterinburg, Russia

    A. A. Kudryashov, A. P. Nichipuruk & A. N. Stashkov

Authors
  1. S. A. Murikov
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  2. I. A. Artem’ev
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  3. E. S. Murikov
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  4. A. A. Kudryashov
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  5. V. N. Urtsev
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  6. A. P. Nichipuruk
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  7. A. N. Stashkov
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Additional information

Original Russian Text © S.A. Murikov, I.A. Artem’ev, E.S. Murikov, A.A. Kudryashov, V.N. Urtsev, A.P. Nichipuruk, A.N. Stashkov, 2011, published in “Stal’,” 2011, No. 11, pp. 68–71.

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Murikov, S.A., Artem’ev, I.A., Murikov, E.S. et al. Roller diagnostics in hot-rolling mills on the basis of the coercive force. Steel Transl. 41, 954–957 (2011). https://doi.org/10.3103/S0967091211110167

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  • DOI: https://doi.org/10.3103/S0967091211110167

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