Method of forming high temperature corrosion resistant film

Details Method of forming high temperature corrosion resistant film Method of forming high temperature corrosion resistant film

2008-05-27

2008-05-27

Parker, Frederick J (Department: 1792)

Coating processes

Direct application of electrical, magnetic, wave, or...

Resistance heating

C427S593000, C427S252000, C427S202000, C427S205000

Reexamination Certificate

active

10544743

ABSTRACT:
Disclosed is a method of forming a high-temperature corrosion-resistant film, which comprises placing a container containing a film-forming fine powder and a target member capable of being heated by an electric current heating process, in an atmosphere-controllable treatment chamber, and floating the fine powder and subjecting the target member to the electric current heating process to allow vapor of the fine powder generated by the heating to be diffused into the target member from a surface thereof so as to form a diffusion film layer, and allow the floated fine powder to be attached onto the surface so as to form a fine-powder film layer on the diffusion film layer. The target member may be masked to form the film only in a non-masked region of the target member. Alternatively, a specific region of the target member may be cooled at a temperature precluding the film formation to prevent the film from being formed in the specific region. The method of the present invention makes it possible to form a high-temperature corrosion-resistant film having an “intended configuration” in a “desired region” of a heat-resistant material at “low cost” with “high productivity”.

REFERENCES:
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patent: 4745002 (1988-05-01), Vexler et al.
patent: 40-9603 (1965-05-01), None
patent: 2-254149 (1990-10-01), None
patent: 02-254149 (1990-10-01), None
patent: 5-171407 (1993-07-01), None
patent: 2000-282217 (2000-10-01), None

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