| 摘要 |
The invention relates to a method for producing an anticorrosive coating on a metal dispersion dry film or on a surface of a µm-scaled metal particle, wherein the metal dispersion dry film or the surface of the µm-scaled metal particle is brought into contact with a treatment solution, which contains a source of chromium(III) ions and is substantially free from polymers that are obtainable by reaction of one or more alkoxysilanes of the formula R4-xSi(OR1)X, where the radicals R are the same or different from one another and respectively represent a substituted or unsubstituted hydrocarbon group with 1 to 22 hydrocarbon atoms, x is equal to 1, 2 or 3 and R1 stands for a substituted or unsubstituted hydrocarbon group with 1 to 8 hydrocarbon atoms, and one or more alkoxides of the formula Me(OR2)n, where Me stands for Ti, Zr, Hf, Al, Si and n stands for the oxidation stage of Me and R2 represents a substituted or unsubstituted hydrocarbon group with 1 to 8 carbon atoms. |
