Electromagnetic stirring of liquid metal by simultaneous imposition of rotating and traveling magnetic fields

Shoji Taniguchi, Kazuyuki Ueno, Shin Ichi Shimazaki, Mitsuhiro Okubo, Tsutomu Ando, Hirofumi Kasahara

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

In order to realize a higher performance of metal materials, further progress in the technology of electromagnetic stirring of liquid metal is needed, because traditional electromagnetic stirrers using rotating magnetic field (RMF) and traveling magnetic field (TMF) have several undesirable characters like severe surface deformation and weak mixing in RMF; violent surface fluctuation in TMF. In the present study, a new electromagnetic stirrer, a double axis electromagnetic stirrer (DAEMS), composed of RMF and TMF is proposed and its performance is investigated using liquid gallium. There are two modes of DAEMS. one is upward imposition of TMF and the other is downward. The former is found to give a much stronger turbulent mixing than RMF under same rotational speed, which seems advantageous to disperse CaO particles into liquid iron in the desulfurization process. The latter is found to achieve a flat and calm free surface under a rotational motion with stronger turbulent mixing than RMF. This character is thought to be advantageous to extend widely the limit of stirring due to deformation and fluctuation of free surface.

Original languageEnglish
Pages (from-to)364-371
Number of pages8
JournalTetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
Volume92
Issue number6
DOIs
Publication statusPublished - 2006 Jun

Keywords

  • Clean steel
  • Double axis electromagnetic stirring
  • Electromagnetic stirring
  • Fluid flow
  • Liquid metal
  • Rotating magnetic field
  • Traveling magnetic field

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Metals and Alloys
  • Materials Chemistry

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