METHOD OF ELECTROLYTIC CERAMIC COATING FOR METAL, ELECTROLYSIS SOLUTION FOR ELECTROLYTIC CERAMIC COATING FOR METAL, AND METALLIC MATERIAL

• Main Authors: SUDA ARATA, KONISHI TOMOYOSHI
• Format: Patent
• Language: English; French; Japanese
• Published: 01.07.2010
• Subjects: APPARATUS THEREFOR; CHEMISTRY; ELECTROFORMING; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; METALLURGY; PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS

An electrolysis solution for electrolytic ceramic coating, which comprises water, a water-soluble zirconium compound, a complexing agent, a carbonate ion, and at least one member selected from a group consisting of an alkali metal ion, an ammonium ion and an organic alkali, wherein the content of the zirconium compound is 0.0001 to 1 mol/L in terms of element zirconium content (X), the concentration (Y) of the complexing agent is 0.0001 to 0.3 mol/L, the concentration (Z) of the carbonate ion is 0.0002 to 4 mol/L, the ratio of the concentration (Y) of the complexing agent to the element zirconium content (X) (i.e., Y/X) is 0.01 or more, the ratio of the concentration (Z) of the carbonate ion to the element zirconium content (X) (i.e., Z/X) is 2.5 or more, and the electrolysis solution has an electrical conductivity of 0.2 to 20 S/m or less. La présente invention concerne une solution d'électrolyse pour revêtement électrolytique céramique qui comprend de l'eau, un composé de zirconium hydrosoluble, un agent complexant, un ion carbonate, et au moins un élément choisi parmi un ion de métal alcalin, un ion ammonium et un alcali organique, la teneur (X) en zirconium élémentaire étant de 0,0001 à 1 mol/l, la concentration (Y) de l'agent complexant de 0,0001 à 0,3 mol/l, la concentration (Z) de l'ion carbonate de 0,0002 à 4 mol/l, le rapport entre la concentration de l'agent complexant et la teneur en zirconium élémentaire (Y/X) de 0,01 ou plus, le rapport entre la concentration de l'ion carbonate et la teneur en zirconium élémentaire (Z/X) de 2,5 ou plus, et la conductivité électrique de la solution d'électrolyse de 0,2 à 20 S/m ou moins.