High chrome work roll and method of manufacturing thereof

Details High chrome work roll and method of manufacturing thereof High chrome work roll and method of manufacturing thereof

B - Operations, Transporting

22

D

22/170, 80/49

B22D 13/02 (2006.01)

Patent

CA 1180163

Abstract In a high chrome work roll, between the outer layer of a cast iron containing 10 - 25 weight % Cr and the core of a ductile cast iron containing less than 1.5 weight % Cr, an intermediary layer of a cast iron containing 5 - 10 weight % Cr is provided, and united therewith integrally in the metallurgical sense. This high chrome work roll is manufactured by forming the outer layer by casting the molten metal into a revolving mol? ? a centrifugal caster; forming the intermediary layer by casting into this mold the molten metal to form a cast iron containing less than 1.0% Cr, before the inside surface of the outer layer has been set, and finally forming the core by casting the molten metal to form a ductile cast iron into this mold, the existence of the intermediary layer preventing as much as possible Cr from diffusing and mixing into the core.

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