Recarburisation method

C - Chemistry – Metallurgy – 21 – B

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

Patent

CA 2733085

A method for recarburising a molten ferro-alloy in a ladle or ladle furnace comprises the step of adding a carbon-containing polymer to the ladle or furnace. The polyer is adapted to function as a recarburiser of the ferro-alloy. In this regard, the polymer can have a format which, when it contacts the molten ferro-alloy, promotes dissolution of carbon from the polymer into the molten ferro-alloy.

L'invention porte sur un procédé de recarburation d'un alliage ferreux fondu dans une poche de coulée ou dans un four à poche de coulée, lequel procédé comporte les étapes d'addition d'un polymère contenant du carbone à la poche de coulée ou au four. Le polymère est conçu pour jouer le rôle d'agent de recarburation de l'alliage ferreux. De ce point de vue, le polymère peut avoir un format tel que, lorsqu'il vient en contact avec l'alliage ferreux fondu, il favorise la dissolution de carbone venant du polymère dans l'alliage ferreux fondu.

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