High resistance crushing bar, and its manufacture

Details High resistance crushing bar, and its manufacture High resistance crushing bar, and its manufacture

B - Operations, Transporting

02

C

22/167, 241/96

B02C 17/20 (2006.01) C22C 38/36 (2006.01)

Patent

CA 1208613

ABREGE L'invention concerne une barre de broyage en métal ferreux, issue directement d'une coulée à solidi- fication dirigée, caractérisée en ce qu'elle présente une structure de surface à grain fin et un coeur a structure dendritique orientée radialement, en ce qu'elle comprend, en % en poids, entre environ 1,1 et 3% de carbone, entre environ 3 et 30% de chrome, entre environ 0,3 et 1,5% de manganese et entre environ 0,3 et 1% de silicium, et en ce qu'elle commporte au moins 10% en volume de carbures.

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