Induction pump for high-temperature molten metals using rotating twisted magnetic field: Molten gallium experiment

Tsutomu Ando, Kazuyuki Ueno, Shoji Taniguchi, Toshiyuki Takagi

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

We report a study of an electromagnetic pump, applicable to processing high-temperature molten metal such as molten steel at over 1500°C. A rotating twisted magnetic field is generated by a stator with three pairs of helical windings. Axial thrust, as well as rotational torque, acts on the molten metal in cylindrical ducts. We carried out a molten metal circulation experiment using molten gallium at 50°C and confirmed that the conventional slip-thrust relation is satisfied in the experiment. Here, we identify the slip for each experimental condition and discuss the motion of molten gallium in the rotating twisted magnetic field. The normalized stalling pressure is obtained at the frequency at which δ/a2 ≈ 0.6, where δ is the skin depth and a2 is the radius of molten metal.

Original languageEnglish
Pages (from-to)1846-1857
Number of pages12
JournalIEEE Transactions on Magnetics
Volume40
Issue number4 I
DOIs
Publication statusPublished - 2004 Jul

Keywords

  • Electromagnetic devices
  • Electromagnetic forces
  • Electromagnetic processing of metals
  • Electromagnetic pump
  • Induction machines
  • Magnetohydrodynamics

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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