Process for making composite bearing material produced thereby

Details Process for making composite bearing material produced thereby Process for making composite bearing material produced thereby

1987-08-31

1989-04-04

Lechert, Jr., Stephen J.

Stock material or miscellaneous articles

All metal or with adjacent metals

Having metal particles

384912, 252 12, 420474, 428553, 428677, 419 8, 419 9, 419 23, 419 28, 419 29, 419 55, 419 57, 148 132, 1481261, 148127, 148433, B22F 704

Patent

active

048186287

ABSTRACT:
A process for making a composite bearing material comprising a steel backed, prealloyed, lead-bronze sintered powder metal matrix whereby the first sinter step includes induction heating the prealloyed powder and steel backing to above 650.degree. C. and thereafter sintering the same at temperatures of about 850.degree. C. in a second sintering furnace. A composite bearing material made by the same process and comprising a lead particle size averaging less than about 8 microns and having no lead islands larger than about 44 microns.

REFERENCES:
patent: 2040053 (1936-05-01), Lytle
patent: 2280103 (1942-04-01), Swartz et al.
patent: 2635020 (1953-04-01), Beebe, Jr.
patent: 2970933 (1961-02-01), Barera et al.
patent: 2986464 (1961-05-01), Lewis et al.
patent: 3154844 (1964-11-01), Sayre et al.
patent: 3445909 (1969-05-01), Beebe, Jr.
patent: 3730705 (1973-05-01), Latrobe
patent: 4002472 (1977-01-01), LeBrasse et al.
patent: 4206268 (1980-06-01), Roemer et al.
patent: 4406857 (1983-09-01), Mahrus et al.

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