C - Chemistry – Metallurgy – 23 – C
Patent
C - Chemistry, Metallurgy
23
C
26/150, 117/53,
C23C 4/12 (2006.01) C23C 4/02 (2006.01) C23C 4/18 (2006.01) F01D 5/28 (2006.01)
Patent
CA 1256753
Abstract Method for Preventing Closure of Cooling Holes in Hollow, Air Cooled Turbine Engine Components During Application of a Plasma Spray Coating This invention relates to the application of plasma sprayed coatings to the surface of components which have small holes therein, such as hollow, air cooled blades or vanes used in turbine engines. Coating material is prevented from depositing on the wall surface of the holes by the presence of fugitive plugs in the holes during the coating process. The plugs are removed after the coating has been applied, resulting in the holes being open and unobstructed.
541705
Nordstrom Donald G.
Radzavich Thomas J.
Sheffler Keith D.
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
United Technologies Corporation
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