C - Chemistry – Metallurgy – 23 – C
Patent
C - Chemistry, Metallurgy
23
C
C23C 22/78 (2006.01) C04B 9/02 (2006.01) C04B 28/34 (2006.01) C23C 22/07 (2006.01) C23C 22/82 (2006.01) C23C 28/00 (2006.01)
Patent
CA 2338315
A highly effective and storage stable conditioning treatment for metal surfaces prior to phosphating them is a suspension in water containing solid microsize particles of at least one phosphate of a divalent or trivalent metal and an accelerant selected from the group consisting of saccharides and their derivatives thereof, orthophosphoric acid, condensed phosphoric acids, organophosphonic acids, and polymers of vinyl acetate and/or carboxylic acid. The surface conditioning liquid composition is used simply by effecting contact between the metal and the liquid composition, and can also be used to simultaneously carry out degreasing, particularly when the conditioning liquid also contains nonionic or anionic surfactant.
La présente invention concerne un traitement de surface métalliques très efficace et stable au stockage. Ce procédé consiste à placer les pièces, avant phosphatation en suspension dans de l'eau renfermant des particules solides, de la taille du micron, d'au moins un phosphate d'un métal bivalent ou trivalent et un accélérateur pris dans le groupe de saccharides et de leurs dérivés : acide orthophosphorique, acides phosphoriques condensés, acides organophosphoniques et polymères d'acétate de vinyle et/ou d'acide carboxylique. Ce procédé consiste simplement à mettre pièce métallique en contact avec la composition liquide. Il peut aussi être utilisé simultanément à des fins de dégraissage, en particulier lorsque le liquide de traitement renferme également un tensioactif non ionique ou anionique.
Bannai Hirokastu
Nagashima Yasuhiko
Nakayama Takaomi
Shimoda Kensuke
Henkel Corporation
Henkel Kommanditgesellschaft Auf Aktien
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
LandOfFree
Conditioning metal surfaces before phosphating them does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Conditioning metal surfaces before phosphating them, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Conditioning metal surfaces before phosphating them will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1832315