Title:
PROTECTIVE FLUORIDE COATINGS FOR ALUMINUM ALLOY ARTICLES
Document Type and Number:
WIPO Patent Application WO/2004/104267
Kind Code:
A1
Abstract:
An aluminum alloy article (14) is cleaned to remove oxides (70) and organic matter (72) from a coatable surface, coated with a composition comprising an organic resin and a fluorine compound (30), and then heated (56) to an elevated temperature to decompose the organic resin and at least a portion of the fluorine compound (30). After heating, the coated surface is left with a protective oxyfluoride film (80) that prevents blistering (13) and hydrogen pickup and promotes hydrogen degassing from the article (14).
Inventors:
JANKOSKY SALLY A (US)
OPALKA SUSANNE M (US)
KOLEK PAULA L (US)
HARENSKI JOSEPH P (US)
KAUFOLD ROGER W (US)
WIESERMAN LARRY F (US)
OPALKA SUSANNE M (US)
KOLEK PAULA L (US)
HARENSKI JOSEPH P (US)
KAUFOLD ROGER W (US)
WIESERMAN LARRY F (US)
Application Number:
PCT/US2004/010592
Publication Date:
December 02, 2004
Filing Date:
April 08, 2004
Export Citation:
Assignee:
ALCOA INC (US)
JANKOSKY SALLY A (US)
OPALKA SUSANNE M (US)
KOLEK PAULA L (US)
HARENSKI JOSEPH P (US)
KAUFOLD ROGER W (US)
WIESERMAN LARRY F (US)
JANKOSKY SALLY A (US)
OPALKA SUSANNE M (US)
KOLEK PAULA L (US)
HARENSKI JOSEPH P (US)
KAUFOLD ROGER W (US)
WIESERMAN LARRY F (US)
International Classes:
B21D39/00; B32B15/04; B32B15/20; C22F1/04; C23C22/56; C23C22/73; C23C22/78; (IPC1-7): C23C22/56
Domestic Patent References:
| WO2000064626A1 | 2000-11-02 |
Foreign References:
| US2092033A | 1937-09-07 | |||
| US2885313A | 1959-05-05 | |||
| US2885316A | 1959-05-05 | |||
| US2969590A | 1961-01-31 | |||
| US6059174A | 2000-05-09 | |||
| US6461451B1 | 2002-10-08 |
Other References:
"Forging of Nonferrous Metals", METALS HANDBOOK, vol. 14, 1988, pages 248 - 249, XP008039660
Attorney, Agent or Firm:
Topolosky, Gary P. (LLC Alcoa Technical Center, 100 Technical Driv, Alcoa Center PA, US)
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