電気爐による鑄鐵熔解法に關する研究

概要

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The effect of furnace atmosphere on the melting of cast iron by electric are furnace were investigated. Results obtained were as follows. : -The main occurrence of defects of cast iron manufactured by electric are furnace should be the oxidation of molten metal by the furnace atmosphere at the melting period of raw materials. Si in molten metal is most affected by the furnace atmosphere, because the molten metal is oxidized at relatively lower temperature. The content of FeO in molten slag on the molten metal at the melting period has no effect to the molten metal but the time of slag off and the composition of 2ndry slag shall be taken more attention, for the temperature of furnace is higher. The content of FeO in molten slag is lowest at CaO/SiO_2=1.2∿1.3 on basic f^<C1>, and 0.4 on acid f^<C1>. The effect of H_2 is more obvions as far as the effect of oxide is negligible small.
社団法人日本鉄鋼協会の論文
1949-11-25