C - Chemistry – Metallurgy – 23 – C
Patent
C - Chemistry, Metallurgy
23
C
C23C 22/16 (2006.01) C23C 22/36 (2006.01) C23C 22/76 (2006.01)
Patent
CA 2214834
An oil- or grease-soiled metal surface can be simultaneously cleaned and phosphate conversion coated by contact with a zinc phosphating composition comprising surfactant, zinc ions, phosphate ions, and organoperoxide. A high quality dense fine-grained conversion coating is formed, without a conventional titanium phosphate sol "conditioning" treatment being needed before phosphating.
Il est possible de nettoyer une surface métallique comportant des taches d'huile et de graisse tout en procédant simultanément au revêtement de conversion en phosphate en mettant cette surface en contact avec une composition à base de phosphate de zinc constituée de surfactant, d'ions zinc, d'ions phosphate et d'organoperoxyde. On constitue ainsi un revêtement de conversion de grande qualité, dense et à grain fin, sans qu'un traitement classique de "conditionnement" au sol de phosphate de titane soit nécessaire avant la phosphatation.
Ishii Hitoshi
Nagashima Yasuhiko
Henkel Corporation
Swabey Ogilvy Renault
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