Inclusion separation from molten steel in tundish with rotating electromagnetic field

Yuji Miki, Hidenari Kitaoka, Nagayasu Bessho, Toshikazu Sakuraya, Shigeru Ogura, Masaaki Kuga

研究成果: Article査読

7 被引用数 (Scopus)


A new process was devised for promoting inclusion separation from the molten steel in the tundish. The process utilizes electromagnetic force to rotate molten steel in a cylindrical tundish. The centrifugal force caused by the rotational flow promotes separation of inclusions. This tundish is referred to as the Centrifugal Flow Tundish (the CF tundish). Industrial plant tests carried out at Chiba works showed that the CF tundish has an excellent deoxidation performance estimated at 0.17-0.25 min-1 as deoxidation rate constant. The mechanism of inclusion separation in the CF tundish is also discussed. Centripetal force and large turbulence energy caused by rotational flow accelerate inclusion separation. Furthermore, residence time distribution of molten steel in a tundish is improved and it promotes slag removal during ladle exchange. This process is successfully used in commercial production of stainless steels slabs with high quality.

ジャーナルTetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
出版ステータスPublished - 1996

ASJC Scopus subject areas

  • 凝縮系物理学
  • 物理化学および理論化学
  • 金属および合金
  • 材料化学


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