Advertisement

Applied Physics B

, 125:65 | Cite as

A stochastic model of the process of sequence casting of steel, taking into account imperfect mixing

  • D. Mier
  • P. Nazim Jalali
  • P. Ramirez Lopez
  • J. Gurel
  • A. Strondl
  • L. M. Cabalín
  • T. Delgado
  • J. Ruiz
  • J. Laserna
  • B. Campanella
  • S. Legnaioli
  • G. Lorenzetti
  • S. Pagnotta
  • F. Poggialini
  • Vincenzo PalleschiEmail author
Article
  • 36 Downloads

Abstract

The process of sequential casting of steel, i.e. the procedure that implies a continuous change in the composition of the steel in the casting process of different steel grades, can be easily modelled assuming a perfect and instantaneous mix of the materials in the tundish. However, experimental evidence based on the measure of the local composition of steel billets obtained through this process suggests that the mixing of different steel grades in the tundish cannot be considered either perfect or instantaneous. An improved stochastic model, taking into account these effects, is presented and validated against the experimental results obtained using the laser-induced breakdown spectroscopy technique, assisted by an artificial neural network. In spite of the simplicity of the model proposed, the agreement between its predictions and the experimental results is remarkable.

Notes

Acknowledgements

The authors acknowledge the fruitful discussions with Dr. Arne Bengtson, Swerim AB, Sweden, during the preparation of this work. The research reported in this paper was partially funded by the European Commission through the LACOMORE (Laser-based continuous monitoring and resolution of steel grades in sequence casting machines) project in the framework of the RFCS Research Fund for Coal and Steel (Grant no. RFSR‐CT‐2013‐00034).

References

  1. 1.
    J. Campbell, Complete casting handbook: metal casting processes, metallurgy, techniques and design (Elsevier Butterworth-Heinemann, Oxford, 2011)Google Scholar
  2. 2.
    R. Noll, H. Bette, A. Brysch, M. Kraushaar, I. Mönch, L. Peter, V. Sturm, Spectrochim. Acta Part B At. Spectrosc. 56, 637 (2001)ADSCrossRefGoogle Scholar
  3. 3.
    G. Lorenzetti, S. Legnaioli, E. Grifoni, S. Pagnotta, V. Palleschi, Spectrochim. Acta Part B At. Spectrosc. 112, 1–5 (2015)CrossRefGoogle Scholar
  4. 4.
    T. Delgado, J. Ruiz, L.M. Cabalín, J.J. Laserna, J. Anal. At. Spectrom. 31, 2242 (2016)CrossRefGoogle Scholar
  5. 5.
    L.M. Cabalín, T. Delgado, J. Ruiz, D. Mier, J.J. Laserna, Spectrochim. Acta Part B At. Spectrosc. 146, 93 (2018)ADSCrossRefGoogle Scholar
  6. 6.
    Y. Sahai, T. Emi, ISIJ Int. 36, 667 (1996)CrossRefGoogle Scholar
  7. 7.
    B.G. Thomas, L. Zhang, ISIJ Int. 41, 1181 (2001)CrossRefGoogle Scholar
  8. 8.
    M.R. Aboutalebi, M. Hasan, R.I.L. Guthrie, Metall. Mater. Trans. B 26, 731 (1995)CrossRefGoogle Scholar
  9. 9.
    L. Tang, J. Liu, A. Rong, Z. Yang, Eur. J. Oper. Res. 120, 423 (2000)CrossRefGoogle Scholar
  10. 10.
    D. Mier Vasallo, J. Ciriza Corcuera, J.J. Laraudogoitia Elortegui, Patent n. ES2445466 (2004)Google Scholar
  11. 11.
    M. Warzecha, T. Merder, H. Pfeifer, J. Pieprzyca, Steel Res. Int. 81, 987 (2010)CrossRefGoogle Scholar
  12. 12.
    A. Bertolini, G. Carelli, F. Francesconi, M. Francesconi, L. Marchesini, P. Marsili, F. Sorrentino, G. Cristoforetti, S. Legnaioli, V. Palleschi, L. Pardini, A. Salvetti, Anal. Bioanal. Chem. 385, 240–247 (2006)CrossRefGoogle Scholar
  13. 13.
    E. D’Andrea, S. Pagnotta, E. Grifoni, G. Lorenzetti, S. Legnaioli, V. Palleschi, B. Lazzerini, Spectrochim. Acta Part B At. Spectrosc. 99, 52–58 (2014)ADSCrossRefGoogle Scholar
  14. 14.
    J.-M. Böhlen, P. Charpié, Steel Times Int. 30, 26 (2006)Google Scholar

Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  • D. Mier
    • 1
  • P. Nazim Jalali
    • 2
  • P. Ramirez Lopez
    • 2
  • J. Gurel
    • 2
  • A. Strondl
    • 2
  • L. M. Cabalín
    • 3
  • T. Delgado
    • 3
  • J. Ruiz
    • 3
  • J. Laserna
    • 3
  • B. Campanella
    • 4
  • S. Legnaioli
    • 4
  • G. Lorenzetti
    • 4
  • S. Pagnotta
    • 4
  • F. Poggialini
    • 4
  • Vincenzo Palleschi
    • 4
    Email author
  1. 1.Sidenor Investigación y Desarrollo S.A.BilbaoSpain
  2. 2.Swerim ABKistaSweden
  3. 3.Departamento de Química Analítica, Facultad de CienciasUniversidad de MálagaMalagaSpain
  4. 4.Applied and Laser Spectroscopy LaboratoryInstitute of Chemistry of Organometallic CompoundsPisaItaly

Personalised recommendations