Method of presubstrate treatment for painting utilizing a gas so

Details Method of presubstrate treatment for painting utilizing a gas so Method of presubstrate treatment for painting utilizing a gas so

1985-07-09

1987-04-21

Childs, Sadie L.

Stock material or miscellaneous articles

Composite

Of metal

148 635, 148 165, 148 166, 4272553, 4272554, 427327, 4274197, 428698, B32B 900, B32B 1504

Patent

active

046596283

ABSTRACT:
A paint priming method which forms, on the surface part of a ferrous material to be treated, a nitride layer with an adequate depth and preferably .epsilon. phase as a main phase thereof, and with no carbon adhesion to the surface thereof, by carrying out a gas soft nitriding treatment with gas components which generate no free carbon. The nitride layer formed on the surface part of the material is used as a presubstrate on which direct painting is possible, thereby providing a simplified and improved presubstrate treatment for painting.

REFERENCES:
patent: 1901039 (1933-03-01), Owens et al.
patent: 2343418 (1944-03-01), Lampton et al.
patent: 2444422 (1948-07-01), Bradford
patent: 2472320 (1949-06-01), Vennerholm et al.
patent: 2703298 (1955-03-01), Branson
patent: 3510366 (1970-05-01), Mears
patent: 3686746 (1972-08-01), Gwyn
patent: 3900689 (1975-08-01), Deyrup
patent: 4003764 (1977-01-01), Wunning
Wunning, J., "A New Process and Equipment Installation for Nitriding with an .epsilon.-Compound Layer", Metals Society, 1975.
Luiten, C. H., "Nitempering of Steel and Cast Iron", Metallurgia & Metal Forming, pp. 214-218, Aug. 1974.

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