Zinc phosphate conversion coatings
Abstract
Zinc phosphate conversion coatings for producing metals which exhibit enhanced corrosion prevention characteristics are prepared by the addition of a transition-metal-compound promoter comprising a manganese, iron, cobalt, nickel, or copper compound and an electrolyte such as polyacrylic acid, polymethacrylic acid, polyitaconic acid and poly-L-glutamic acid to a phosphating solution. These coatings are further improved by the incorporation of Fe ions. Thermal treatment of zinc phosphate coatings to generate .alpha.-phase anhydrous zinc phosphate improves the corrosion prevention qualities of the resulting coated metal.
- Inventors:
-
- Wading River, NY
- Issue Date:
- Research Org.:
- Brookhaven National Laboratory (BNL), Upton, NY (United States)
- OSTI Identifier:
- 870839
- Patent Number(s):
- 5604040
- Assignee:
- Associated Universities, Inc. (Washington, DC)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C23 - COATING METALLIC MATERIAL C23C - COATING METALLIC MATERIAL
- DOE Contract Number:
- AC02-76CH00016
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- zinc; phosphate; conversion; coatings; producing; metals; exhibit; enhanced; corrosion; prevention; characteristics; prepared; addition; transition-metal-compound; promoter; comprising; manganese; iron; cobalt; nickel; copper; compound; electrolyte; polyacrylic; acid; polymethacrylic; polyitaconic; poly-l-glutamic; phosphating; solution; improved; incorporation; thermal; treatment; generate; alpha; -phase; anhydrous; improves; qualities; resulting; coated; metal; producing metal; polyacrylic acid; zinc phosphate; thermal treatment; acrylic acid; producing metals; polyitaconic acid; phosphate conversion; exhibit enhanced; coated metal; enhanced corrosion; methacrylic acid; conversion coatings; /428/148/
Citation Formats
Sugama, Toshifumi. Zinc phosphate conversion coatings. United States: N. p., 1997.
Web.
Sugama, Toshifumi. Zinc phosphate conversion coatings. United States.
Sugama, Toshifumi. Wed .
"Zinc phosphate conversion coatings". United States. https://www.osti.gov/servlets/purl/870839.
@article{osti_870839,
title = {Zinc phosphate conversion coatings},
author = {Sugama, Toshifumi},
abstractNote = {Zinc phosphate conversion coatings for producing metals which exhibit enhanced corrosion prevention characteristics are prepared by the addition of a transition-metal-compound promoter comprising a manganese, iron, cobalt, nickel, or copper compound and an electrolyte such as polyacrylic acid, polymethacrylic acid, polyitaconic acid and poly-L-glutamic acid to a phosphating solution. These coatings are further improved by the incorporation of Fe ions. Thermal treatment of zinc phosphate coatings to generate .alpha.-phase anhydrous zinc phosphate improves the corrosion prevention qualities of the resulting coated metal.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1997},
month = {1}
}
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Works referenced in this record:
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journal, December 1984
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Influence of the high temperature treatment of zinc phosphate conversion coatings on the corrosion protection of steel
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journal, January 1980
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Characteristics of Transition Metal-Adsorbed Anhydrous zinc Phosphate Coatings as Corrosion Barriers for Steels
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journal, February 1992
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