Model experiment on the coagulation of inclusion particles in liquid steel

Shoji Taniguchi, Atsushi Kikuchi, Tomoko Ise, Naruhito Shoji

Research output: Contribution to journalArticlepeer-review

64 Citations (Scopus)

Abstract

Model experiments on the particle coagulation in NaCl-aqueous solutions were made in an agitated vessel to learn the coagulation rate of inclusion particles in liquid steel. Polystyrene-latex particles, silica particles and alumina particles were tested at various agitation speeds, and coagulation coefficients were obtained by comparing the observed coagulation rate with the predicted rate by the Saffman-Turner model on turbulent collision. The Higasnitani theory which considered the effect of van der Waals force and viscous resistance force on the coagulation coefficient was applied to obtain the Hamaker constant from the measured coefficients. Based on the measured Hamaker constants, the coagulation coefficients of inclusion particles in liquid steel were predicted for several steelmaking processes with different stirring intensities.

Original languageEnglish
Pages (from-to)S117-S120
JournalIsij International
Volume36
Issue numberSUPPL.
DOIs
Publication statusPublished - 1996

Keywords

  • Clean steel
  • Deoxidation
  • Energy dissipation rate
  • Hamaker constant
  • Inclusion
  • Stirring power density
  • Turbulent coagulation

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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