High chrome work roll

Details High chrome work roll High chrome work roll

1981-04-22

1984-02-21

Lewis, Michael L.

Stock material or miscellaneous articles

All metal or with adjacent metals

Composite; i.e., plural, adjacent, spatially distinct metal...

148 35, 75123CB, 29130, 29132, B32B 1518

Patent

active

044330324

ABSTRACT:
In a high chrome work roll, between the outer layer of a cast iron containing 10.about.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.about.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 mold of a centrifugal caster; forming the intermediary layer by casing 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.

REFERENCES:
patent: 2771358 (1956-11-01), Spear

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