Coating articles having fine bores or narrow cavities in a pack-

Details Coating articles having fine bores or narrow cavities in a pack- Coating articles having fine bores or narrow cavities in a pack-

1978-02-22

1979-05-22

Kendall, Ralph S.

Coating processes

Coating by vapor, gas, or smoke

Metal coating

118 49, 148 63, C23C 902

Patent

active

041560426

ABSTRACT:
A process for coating an article such as a turbine blade composed of nickel-base alloy, comprises the steps of surrounding the article by a particulate pack in a chamber, the pack including coating material in elemental or chemically combined form, said coating material selected from the group comprising aluminium, chromium, titanium, zirconium tantalum, niobium, yttrium, rare earth metals, boron and silicon together with a halide activator, preferably of low volatility, and cyclically varying the pressure of an inert gas or a reducing gas or a mixture of said gases contained within said chamber, while maintaining the contents of the chamber at a temperature sufficient to transfer coating material onto the surface of the article and form a diffusion coating thereon.

REFERENCES:
patent: 2210832 (1940-08-01), Bright
patent: 3079276 (1963-02-01), Puyear et al.
patent: 3158499 (1964-11-01), Jenkins
patent: 3257230 (1966-06-01), Wachtell
patent: 3343982 (1967-09-01), Maxwell et al.
patent: 3373018 (1968-03-01), Oxley et al.

Affiliated with

Also associated with

Rating

Coating articles having fine bores or narrow cavities in a pack- does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Coating articles having fine bores or narrow cavities in a pack-, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Coating articles having fine bores or narrow cavities in a pack- will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1041023