Influence of Hollow Electrode Ar-CH4 Co-Injection on Temperature in a Ladle Furnace with Alternating Current Supply

Dong Ping Zhan; Hui Shu Zhang; Zhou Hua Jiang; Wei Gong; Hua Bing Li; Zhao Ping Chen

doi:10.4028/www.scientific.net/AMR.402.142

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 402Influence of Hollow Electrode Ar-CH4 Co-Injection...

Influence of Hollow Electrode Ar-CH₄ Co-Injection on Temperature in a Ladle Furnace with Alternating Current Supply

Abstract:

The argon and methane gas mixtures co-injection tests were carried out with low carbon steel melts of 80 kg in a multi-function alternating current ladle furnace (AC-LF) equipped with a hollow graphite electrode. It is shown that, the heating rates of the heats with Ar-CH₄ injection are higher than that of the normal solid graphite electrode heat. The minimal average heating rate of the heat with Ar-CH₄ co-injection is 1.6 times than that of the normal solid graphite electrode heat, and the maximum is 6.6 times. When argon or Ar-CH₄ is injected into LF, the voltage is lower and the electric current amplitude are more stable than those of the normal solid graphite electrode heat, and it’s the most stable for the heat refining with φ(Ar)/φ(CH₄)=85/15 injection.

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Advanced Materials Research (Volume 402)

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142-146

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.402.142

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Online since:

November 2011

Authors:

Dong Ping Zhan, Hui Shu Zhang, Zhou Hua Jiang, Wei Gong, Hua Bing Li, Zhao Ping Chen

Keywords:

Argon, Gas Injection, Hollow Electrode, Ladle Furnace, Methane, Steelmaking

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