Super hard metal roll assembly and production thereof

Details Super hard metal roll assembly and production thereof Super hard metal roll assembly and production thereof

1976-07-26

1979-01-30

Schafer, Richard E.

Metal treatment

Process of modifying or maintaining internal physical...

Magnetic materials

29132, 294205, 75203, 75204, 75208R, 428565, 228131, B22F 702

Patent

active

041371062

ABSTRACT:
A super hard metal roll assembly and a process for producing it are disclosed. Initially, a powdered mix of super hard metal materials is moulded into a hollow cylindrical moulding. The moulding is then fitted about a super hard metal cylindrical element such as roll, cylinder, pillar or shaft, and sintered to contract to a bushing tightly engaging the outer periphery of the cylindrical element to produce a super hard metal roll assembly. The roll assembly may be further treated in a high temperature and high pressure inert gas in order to eliminate voids at the interface between the bushing and the cylindrical element.

REFERENCES:
patent: 2313227 (1943-03-01), De Bats
patent: 2652520 (1953-09-01), Studders
patent: 2913819 (1959-11-01), Andreotti et al.
patent: 3609849 (1971-10-01), Krol
Schwarzkopf, P., et al., Cemented Carbides, pp. 38-39, 84-85, 1960, MacMillan, N.Y.

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