タンディッシュ内溶鋼加熱用交流プラズマトーチの電力特性と溶鋼加熱特性

概要

論文の詳細を見る
The single A. C. plasma arc heating system was adopted in the new No.4 continuous caster at Kakogawa works in 1989 to keep molten steel temperature constant during casting. By using this system, the effect of atmosphere on plasma arc voltage and the heating characteristics of molten steel were investigated. The obtained results are as follows : Plasma arc voltage in the case of using molten steel is lower than that of using carbon block because of existence of metallic fume. Plasma arc voltage is affected by the gas composition more than the dust quantity in the tundish and it increases with increasing the content of gas molecules such as O_2 and N_2 gas in the Ar atmosphere. It is possible to keep molten steel temperature constant in the tundish by the suitable plasma arc heating condition.
社団法人日本鉄鋼協会の論文
1991-10-01