Post-treatment for metal coated substrates

Details Post-treatment for metal coated substrates Post-treatment for metal coated substrates

C - Chemistry, Metallurgy

23

C

C23C 22/34 (2006.01)

Patent

CA 2465701

An aqueous composition for post-treating metal coated substrates such as cadmium-plated steel or zinc-nickel coated substrates and the process for using said composition to improve the corrosion-resistance, abrasion, and adhesion bonding properties of the metal coatings. The composition comprising an acidic aqueous solution having a pH ranging from about 2.5 to 4.5 containing effective amounts of trivalent chromium salts, an alkali metal hexafluorozirconate, at least one alkali metal fluorocompound, and effective amounts of water soluble thickeners and/or surfactants.

L'invention concerne une composition aqueuse destinée au post-traitement de substrats revêtus de métal, tels que des substrats revêtus d'acier plaqué cadmium ou de zinc-nickel, ainsi qu'un procédé d'utilisation de cette composition en vue d'améliorer les propriétés de résistance à la corrosion, d'abrasion et de liaison par adhérence des revêtements métalliques. Ladite composition comprend une solution aqueuse acide présentant un pH compris entre environ 2,5 et 4,5 et renfermant des quantités efficaces de sels de chrome trivalent, d'un hexafluorozirconate de métal alcalin et d'au moins un composé fluoré de métal alcalin, ainsi que des quantités efficaces d'épaississants solubles dans l'eau et/ou d'agents de surface.

Affiliated with

Also associated with

Rating

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.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-2022075