| 摘要 |
<p>A surface-treated metal material according to the present invention is a metal material the surface of which is coated with a composite film comprising an organic silicon compound (W) having cyclic siloxane bonds, at least one type of metal compound (X) selected from the group consisting of titanium compounds and zirconium compounds, a phosphoric acid compound (Y), and a fluorine compound (Z). In each component of the composite film, the ratio (XS/WS) of the solid content weight (WS) of Si derived from the organic silicon compound (W) and the solid content weight (XS) of the at least one metal component selected from the group consisting of Ti and Zr contained in the metal compound (X) is between 0.06 and 0.16, the ratio (YS/WS) of the solid content weight (WS) and the solid content weight (YS) of P derived from the fluorine compound (Z) is between 0.15 and 0.31, and the ratio (ZS/WS) of the solid content weight (WS) and the solid content weight (ZS) of F derived from the fluorine compound (Z) is between 0.08 and 0.50.</p> |
