Composite casting of bearing alloys to bushes

Details Composite casting of bearing alloys to bushes Composite casting of bearing alloys to bushes

1989-04-03

1990-06-12

Seidel, Richard K.

Metal founding

Process

Shaping liquid metal against a forming surface

164 98, 1641221, B22D 1908

Patent

active

049324608

ABSTRACT:
Bearing alloy is applied to a bush (10) by mounting the bush (10) on a support structure (14) having an upstanding mandrel (17) so as to form an annular interspace (20) for reception of the bearing alloy in liquid form. The mandrel (17) projects above the bush (10) and has certain predetermined minimum dimensions. Infrared heating is applied to the bush (10) and the mandrel (17) sufficient to prevent the liquid bearing alloy freezing on contact with any of the surfaces defining the interspace (20). After degassing the liquid alloy is controllably cooled by coolant applied to the exterior of the bush (10) and finally the metalled bush is freed from the support structure (14).

REFERENCES:
patent: 3995357 (1976-12-01), Boggs et al.
patent: 4023611 (1977-05-01), Clemens et al.
patent: 4117580 (1978-10-01), Heck
patent: 4200514 (1980-04-01), Schaale

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