リムド鋼の脱炭機構

概要

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There are many studies on rimming steel but very few of which are quantitative. We have examined both the progress of solidification and the variation of composition in 10∿22 t low-carbon rimming steel melts during the time from pouring to capping. From these results, we made an unique quantitative investigation on the decarburization mechanism for rimming steel after pouring. From this study, the influence of oxygen coming from air on the decarburization reaction was clarified, and the decarburization reaction was classified to two types. One is the decarburization reaction which arises from the reaction of the carbon and oxygen discharged, during solidification, due to the difference of the solubity for melt and solid steel. The other is the decarburization reaction which arises from oxygen introduced from air which makes the oxygen concentration in melt deviate from the C-O equilibrium.
社団法人日本鉄鋼協会の論文
1970-08-01