Improvement of transition part of slab surface cleanliness with in-mold electromagnetic stirring

Junji Nakashima, Jun Fukuda, Akihito Kiyose, Toshiaki Kawase, Yasuhiko Ohtani, Masahiro Doki, Keisuke Fujisaki

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

To react to user's quality demands and the needs for saving the production cost to realize the high quality slab, the transition part of slab surface cleanliness has been improved with electromagnetic stirring (EMS). In the present study, experimental investigation and 3-D fluid dynamic calculation have been carried out for analysis of the influence of velocity on the slab surface cleanliness. The following results are obtained. (1) A steady level of surface cleanliness is possible to be maintained by providing an average velocity of about 0.2 to 0.4 m/s along the solidification front, irrespective of the cleanliness of the molten steel. (2) According to 3-D magnetohydrodynamics calculation, electromagnetic stirring technique is useful for improvement of transition part of slab surface cleanliness, especially bottom end part of continuously cast slab.

Original languageEnglish
Pages (from-to)281-288
Number of pages8
JournalTetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
Volume93
Issue number4
DOIs
Publication statusPublished - 2007 Apr

Keywords

  • Cleanliness
  • Continuously cast slabs
  • Electromagnetic stirring
  • Ladle exchange
  • Magnetohydrodynamics
  • Nonmetallic inclusions

ASJC Scopus subject areas

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

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