Sintered composite machine part and manufacturing method...

Details Sintered composite machine part and manufacturing method... Sintered composite machine part and manufacturing method...

2011-08-30

2011-08-30

King, Roy (Department: 1733)

Powder metallurgy processes

Powder metallurgy processes with heating or sintering

Making composite or hollow article

C419S002000, C419S029000, C419S038000

Reexamination Certificate

active

08007713

ABSTRACT:
Disclosed are a sintered composite machine part as a cylinder block for piston pumps or piston motors, and a manufacturing method thereof. The machine part has an air-tight main body of sintered porous iron alloy and having an iron oxide layer on the surface; and a sliding part of sintered porous copper alloy being bonded direct to the main body. The sliding part is to be slid in tight contact with a fluid supply/return device. The manufacturing is made by preparing a main body of sintered porous iron alloy and a green compact for sliding part from a raw material metal powder having a composition corresponding to the copper alloy; sintering the green compact for sliding part in contact with the main body to bond the sliding part to the main body by diffused junction; and subjecting the main body to steam treatment to provide an iron oxide layer.

REFERENCES:
patent: 3280758 (1966-10-01), Leeming et al.
patent: 3709107 (1973-01-01), Alger et al.
patent: 4722824 (1988-02-01), Wiech, Jr.
patent: 4799419 (1989-01-01), Krause
patent: 5948549 (1999-09-01), Takayama et al.
patent: 6447274 (2002-09-01), Horihata et al.
patent: 6485540 (2002-11-01), Kosco
patent: 2004/0149083 (2004-08-01), Takayama et al.
patent: 87 2 10072 (1988-07-01), None
patent: 56-169705 (1981-12-01), None
patent: 57-89408 (1982-06-01), None
patent: 05-078875 (1993-03-01), None
patent: 06-010825 (1994-01-01), None
patent: 20010061817 (2001-07-01), None

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