Coating processes – Electrical product produced – Integrated circuit – printed circuit – or circuit board
Patent
1974-09-16
1976-11-09
Newsome, John H.
Coating processes
Electrical product produced
Integrated circuit, printed circuit, or circuit board
427 50, 427 53, 418178, B05D 306
Patent
active
039912299
ABSTRACT:
A base metal, such as the aluminum or iron housing of a conventional rotary or reciprocating-piston internal combustion engine, and a sealing member applicable to the pistons or rotor thereof are coated with a layer of a wear-resistant alloy, such as molybdenum-ruthenium or tungsten-ruthenium alloy, either by evaporating the elements of the alloy be electron guns onto the surfaces to be coated or by vaporizing a wire of the same alloy in a vacuum chamber by the application of a high-tension electrical discharge through the wire from an electrical condenser bank. Depositing the alloy is done on a production basis by passing workpiece holders in a circular path through a vacuum chamber beneath the electron guns, followed by a realloying step through a laser beam, an acid dip, a rinsing dip, a drying by heat, and a final honing.
REFERENCES:
patent: 3310423 (1967-03-01), Ingham
patent: 3456624 (1969-07-01), Okamoto
patent: 3479161 (1969-11-01), Evans
patent: 3556837 (1971-01-01), Hammond
patent: 3639150 (1972-02-01), Suhara et al.
patent: 3655430 (1972-04-01), Greaves
patent: 3820798 (1974-06-01), Lamm
Bugbee Willis
Newsome John H.
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