C - Chemistry – Metallurgy – 23 – C
Patent
C - Chemistry, Metallurgy
23
C
C23C 22/05 (2006.01)
Patent
CA 2513872
Aqueous compositions for post treating metal coated substrates such as cadmium- plated steel, and zinc-nickel coated substrates and the process for using said compositions to provide a color recognizable coating and, to improve the corrosion-resistance, abrasion, electrical, and adhesion properties of the coating. The post-treatment composition comprises an acidic aqueous solution having a pH ranging from about 2.5 to 5.5 and contains effective amounts of trivalent chromium compounds, alkali metal hexafluorozirconates, at least one divalent zinc compound, alkali metal fluoro-compounds, and effective amounts of water soluble thickepers, wetting agents or surfactants.
L'invention concerne des compositions aqueuses destinées à post-traiter des substrats recouverts de métal tels que de l'acier composé de cadmium, et des substrats recouverts de zinc-nickel. L'invention concerne également un procédé destiné à utiliser lesdites compositions pour produire un revêtement à couleur reconnaissable et pour améliorer la résistance à la corrosion, à l'abrasion, les propriétés électriques et l'adhérence du revêtement. La composition de post-traitement comprend une solution aqueuse acide présentant un pH compris entre 2,5 et 5,5 environ et contient des quantités efficaces de composés de chrome trivalent, des hexafluorozirconates métalliques alcali, au moins un composé de zinc divalent, des composés fluorométalliques alcali, et des quantités efficaces d'agents épaississants hydrosolubles, des agents humidifiants ou des tensioactifs.
Matzdorf Craig A.
Nickerson William C. Jr.
Mcfadden Fincham
The United States Of America As Represented By The Secretary Of The Nav Y.
LandOfFree
Post-treatment for metal coated substrates does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Post-treatment for metal coated substrates, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Post-treatment for metal coated substrates will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1647547