| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an aluminum surface treating agent forming coating film excellent in corrosion resistance, particularly, in rust preventing properties, to provide a treating method therefor and to provide an aluminum material or an aluminum alloy material treated using the above aluminum surface treating agent. SOLUTION: Using an aluminum surface treating agent contg. fluoro-metallic acid or fluoro-metallic acid salt contg. at least one kind among zirconium, titanium, hafnium, aluminum, silicon, germanium, tin and boron and at least one kind of polymer compounds among the homopolymers or copolymers of aromatic sulfonic acid monomers having unsaturated bond and aliphatic sulfonic acid monomers having unsaturated bond, an aluminum material or an aluminum alloy material is treated to form coating film, by which the aluminum material or aluminum alloy material in which the coating film is formed can be obtd.</p> |
