| 摘要 |
PROBLEM TO BE SOLVED: To provide a surface-treated metallic member provided with a rust-preventive film having corrosion resistance, and corrosion resistance after heating. SOLUTION: A metallic member having a surface made of aluminum based metal is coated with a rust-preventive film, whose coating weight is 0.02 to 5 g/m<SP>2</SP>, having a composition comprising (S) component as the silicate of at least one metal selected from Li, Na or K, and (Ox) component as a water soluble, oxidizable inorganic compound being a solid at ordinary temperature of selective elements E<SB>1</SB>other than Be, B, F, Cr, Mn, Co, Ni, Cu, Zn, As, Se, Mo, Ag, Cd, Sb, Ba, Hg, Pb, In, Te and Tl as the constituting main components, or comprising the (S) component, and (Red) component as a water soluble, reducing inorganic compound being a solid at ordinary temperature of the selective elements E<SB>1</SB>as the constituting main components, or comprising the (S) component, and a compound of the selective elements E<SB>1</SB>, which is also a water soluble inorganic phosphate as the constituting main components, and in which the content of the (Ox) component, (Red) component or (P) component lies in the range of 0.5 to 20 mass%. COPYRIGHT: (C)2008,JPO&INPIT |
