Oxygen injection lance jet for decarburizing grey iron, and...

F - Mech Eng,Light,Heat,Weapons – 27 – D

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39/105, 53/119

F27D 3/16 (2006.01) C21C 5/00 (2006.01) C21C 5/46 (2006.01)

Patent

CA 1177642

PRECIS DE LA DIVULGATION: Une buse concernant la décarburation des fontes liquide au moyen d'un jet d'oxygène issu d'une lance équipée d'une telle buse. Cette buse se caractérise par un divergent qui comporte au-delà du col une partie tronconique d'angle au sommet compris entre 60 et 70° et, de préférence, entre 62 et 66°. L'angle de 65° est proche de l'optimum. Et un procédé pour la décarburation des fontes au chrome au moyen d'une telle buse qui permet l'obtention de rendements très élevés en chrome et en fer.

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