Tecnologia em Metalurgia, Materiais e Mineração (Mar 2013)

COMPUTATIONAL FLUID DYNAMICS APPLIED TO THE STUDY OF INCLUSIONS FLOTATION IN STEELS FOR AUTOMOTIVE INDUSTRY

  • Ângelo Máximo Fernandes Marins,
  • Joaquim Gonçalves Costa Neto,
  • Wiclef Humberto Vieira Martins,
  • Carlos Antônio da Silva,
  • Itavahn Alves da Silva

DOI
https://doi.org/10.4322/tmm.2013.011
Journal volume & issue
Vol. 10, no. 1
pp. 78 – 87

Abstract

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The practice of inert gas bubbling in steel refining ladle aims the removal of non-metallic inclusions, in addition to thermal and compositional homogenization. Through physical and mathematical models of a secondary ladle refining, the effects of bubbling flow of inert gas and the number of porous plugs located at the bottom of the ladle are investigated. The velocity fields and flotation of non-metallic inclusions are analyzed by physical and mathematical modeling. The results are validated by analysis of images (PIV) and the macroscopic model is compared by industrial results for inclusions analysis for steels used in the automotive sector

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