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A high-powered A.C. plasma torch for the arc heating of molten steel in the tundish

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Abstract

Current user's requirements for excellent product quality means that producers must discover the isothermal casting conditions which trill lead to top operating performance in the continuous casting process. In response to this requirement. a high-powered A. C. plasma arc heating system was adopted for the No. 4 Continuous Caster (No. 4CC) put into operation at Kakogawa Works. This heating system is a single-phase A.C. plasma type with two torches. This report describes research on the molten steel heating technique utilized by the A. C. plasma system, the effects of tundish atmosphere on the characteristics of plasma electric potter, and the counter- measures devised to increase the arc voltage using a suitable torch structure.

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Authors and Affiliations

  1. Technology Administration Department, Kobe Steel Ltd.,1-3-18, Wakinohama, Chuo-ku, Kobe, 651, Hyogo, Japan

    Hideaki Fujimoto

  2. Kakogawa Works, Kobe Steel, Ltd., 1, Kanazawa Kakogawa, 675-01, Hyogo, Japan

    Hirohiko Tokunaga & Hideki Iritani

Authors
  1. Hideaki Fujimoto
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  2. Hirohiko Tokunaga
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  3. Hideki Iritani
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Fujimoto, H., Tokunaga, H. & Iritani, H. A high-powered A.C. plasma torch for the arc heating of molten steel in the tundish. Plasma Chem Plasma Process 14, 361–382 (1994). https://doi.org/10.1007/BF01447086

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  • DOI: https://doi.org/10.1007/BF01447086

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