弱攪拌型上底吹き転炉における混合ガス上吹き法を用いた高クロム鋼溶製技術の開発と脱炭特性(転炉-取鍋精錬技術と高純度鋼製造)(<特集>転炉機能の拡大)

概要

論文の詳細を見る
Decarburization behavior of high Cr steel by mixed gas top blowing was investigated in experiments with a 5t inert gas stirred converter. Results obtained are summarized as follows : 1) Preferential decarburization characteristics in low carbon region are obtained with mixed gas top blowing better than those with oxygen top blowing. 2) A new index, (CROI), is introduced to attain good correlation between the operational conditions and the decarburization characteristics in low carbon region. 3) The new index can reasonably explain the difference in the decarburization characteristics in several kinds of the combined blowing converters. Based on the above results, the refining process for high Cr steel has been commercialized in the 180t combined blowing converter (LD-KGC) at Mizushima Works.
社団法人日本鉄鋼協会の論文
1990-11-01