A high-powered A.C. plasma torch for the arc heating of molten steel in the tundish |
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Authors: | Hideaki Fujimoto Hirohiko Tokunaga Hideki Iritani |
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Affiliation: | (1) Technology Administration Department, Kobe Steel Ltd.,1-3-18, Wakinohama, Chuo-ku, Kobe, 651 Hyogo, Japan;(2) Kakogawa Works, Kobe Steel, Ltd., 1, Kanazawa Kakogawa, 675-01 Hyogo, Japan |
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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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Keywords: | A.C. Plasma plasma torch steelmaking continuous caster tundish electrode torch structure numerical analysis turbulence |
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