Method of producing a wear-resistant compound roll

Details Method of producing a wear-resistant compound roll Method of producing a wear-resistant compound roll

1991-02-25

1992-04-21

Lechert, Jr., Stephen J.

Powder metallurgy processes

Powder metallurgy processes with heating or sintering

Making composite or hollow article

419 11, 419 17, 419 23, 419 49, B22F 700

Patent

active

051065762

ABSTRACT:
A wear-resistant compound roll having a shell portion produced by sintering a uniform mixture of alloy powder consisting essentially, by weight, of 1.2-3.5% of C, 2% or less of Si, 2% or less of Mn. 10% or less of Cr, 3-35%, as W+2Mo, of one or two of W and Mo, 1-12% of V, and balance Fe and inevitable impurities, and 1-15%, based on the weight of said alloy powder, of VC powder dispersed therein. This compound roll is produced by (a) uniformly mixing the alloy powder with the VC powder; (b) charging the resulting mixed powder into a metal capsule disposed around a roll core; and (c) after evacuation and sealing, subjecting said mixing powder to a HIP treatment.

REFERENCES:
patent: 3802938 (1974-04-01), Collins et al.
patent: 4165407 (1979-08-01), Endoh et al.
patent: 4966748 (1990-10-01), Miyasaka et al.
patent: 4976915 (1990-12-01), Kuroki

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