Direct steel-making process

Details Direct steel-making process Direct steel-making process

C - Chemistry, Metallurgy

21

B

C21B 13/00 (2006.01) B22F 3/18 (2006.01)

Patent

CA 2086955

Steel sheet is formed directly from iron ore concentrate by reducing a bed of iron ore concentrate, particularly high purity magnetized magnetic gamma hematite, to a low density hot cake of carburized metallic iron and then hot rolling the hot cake to a metallic sheet of full density (meeting market specification).

Feuille d'acier produite directement à partir de concentrés de minerai de fer par réduction d'une couche de concentrés de minerai de fer, particulièrement de la fonte hématite gamma magnétisée et d'une très grande pureté afin d'obtenir un cake chaud, de faible densité, de fer métallique carburé puis à soumettre le cake chaud au laminage à chaud afin d'obtenir une feuille métallique de densité nominale (qui répond aux spécifications du marché).

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