C - Chemistry – Metallurgy – 23 – C
Patent
C - Chemistry, Metallurgy
23
C
C23C 22/07 (2006.01) C23C 22/08 (2006.01) C23C 22/20 (2006.01) C23C 22/22 (2006.01)
Patent
CA 2437990
The zinc-base plated steel sheet has a steel sheet, a zinc-base plating layer on the steel sheet, and a composite coating film formed on the plating layer, which composite coating layer contains a P ingredient, an N ingredient, and at least one element selected from the group consisting of Mg, Al, Ca, Ti, Fe, Co, Ni, Cu, and Mo, and is prepared by applying an aqueous solution containing a cationic ingredient (.alpha.) and a phosphoric acid ingredient (.beta.) onto the surface of plating layer on the zinc-base plated steel sheet, and then drying the applied aqueous solution, without giving washing with water, and which cationic ingredient (.alpha.) consists essentially of at least one metallic ion selected from the group consisting of Mg, Al, Ca, Ti, Fe, Co, Ni, Cu, Mo, and NH4+ ions.
L'invention porte sur une tôle d'acier zinguée consistant en une tôle d'acier un revêtement à base de zinc formé sur la tôle, et un film composite formé sur le précédent, le film composite comportant un composant (P) et au moins un composant choisi parmi les N composants suivants: Mg, Al, C.a., Ti, Fe, Co, Ni, Cu et Mo, et sur son procédé de production consistant à appliquer sur la couche à base de zinc une solution aqueuse comprenant un composant cationique ( alpha ) et un composant de phosphate ( beta ) puis à la faire sécher sans la laver à l'eau de manière à former le film, le composant cationique ( alpha ) comprenant au moins un ion métallique choisi parmi Mg, Al, C.a., Ti, Fe, Co, Ni, Cu et Mo et NH4<+>.
Ando Satoru
Inagaki Junichi
Sugimoto Yoshiharu
Tada Masaki
Yamashita Masaaki
Jfe Steel Corporation
Ridout & Maybee Llp
LandOfFree
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