Method for melting steel

Details Method for melting steel Method for melting steel

C - Chemistry, Metallurgy

21

C

307/34, 53/72

C21C 5/52 (2006.01) C21B 13/00 (2006.01) C21B 13/12 (2006.01)

Patent

CA 1081968

ABSTRACT It is known to melt steel in a closed electrical- resistance furnace, a layer of slag being used to cover the molten metal. In this invention, an oxidizing burden having a refining action is charged into the furnace, a deep bath of the molten steel is maintained in the furnace, the volume of the molten metal corresponding to between 5 hours and 2 days production, and a thick cover of slag is maintained covering the molten steel, the slag having a decarburizing, dephosphorizing, and desulphurizing effect, the thickness of the slag cover being between 250 and 1500 mm or corresponding to 1 to 10 days production. These measures permit the melting process to be carried out continuously, and the furnace can be heated con- tinuously by electrodes immersed in the slag.

223556

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