Process for producing aluminum alloy bearing

Details Process for producing aluminum alloy bearing Process for producing aluminum alloy bearing

1997-11-13

1999-04-27

Hughes, S. Thomas

Metal working

Method of mechanical manufacture

Process for making bearing or component thereof

134 3, 134 41, 216103, B23P 1500

Patent

active

058966641

ABSTRACT:
In producing an aluminum alloy bearing which comprises bonding an aluminum alloy layer to a backing metal layer composed of steel and then coating an intermediate layer and an overlay in this order on the surface of the aluminum alloy layer of the resulting semi-finished product, the surface of the aluminum alloy layer of the semi-finished product is subjected to etching treatment and the smut attached to the said surface is removed by subjecting the etched semi-finished product to de-smutting treatment using, as a de-smutting solution, an aqueous solution comprising 20 to 60% by weight of sulfuric acid and 2 to 10% by weight of a peroxoborate, whereby the tolerance of the bearing height is made small, the working environment is rendered good and the draining treatment is made easy.

REFERENCES:
patent: 4608275 (1986-08-01), Kukanskis et al.
patent: 4857225 (1989-08-01), Terada et al.
patent: 5116692 (1992-05-01), Mori et al.
patent: 5259979 (1993-11-01), Condra et al.
patent: 5648125 (1997-07-01), Cane
patent: 5669980 (1997-09-01), McNeil et al.

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