Coating processes – Coating by vapor – gas – or smoke – Metal coating
Patent
1992-01-08
1993-07-06
Lusigan, Michael
Coating processes
Coating by vapor, gas, or smoke
Metal coating
427253, 427282, 298897, C23C 1600
Patent
active
052252469
ABSTRACT:
A method for coating articles, such as gas turbine blades, with a coating of variable thickness by securing a shield having one or more holes extending therethrough to the article thereby defining a shielded portion of the article, exposing the article and shield to a metal-bearing gas which is circulated around the article to deposit a metallic coating thereon, wherein the circulation of the gas adjacent the shielded portion of the article is restricted by the presence of the shield, thereby producing a substantially thinner coating on the shielded portion of the article than on the unshielded portion.
REFERENCES:
patent: 3486927 (1969-12-01), Gauje
patent: 4469719 (1984-09-01), Martin
Beers Russell A.
Noetzel Allan A.
Lusigan Michael
United Technologies Corporation
Utech Benjamin L.
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