| 摘要 |
A surface treatment method for surface-treating a metal member at a lower cost without giving ill effects on the human body as well as without any possible dimensional change resulting from corrosion by acid, and metal goods having excellent corrosion resistance and excellent adhesion to paint. The surface treatment method for surface-treating the metal member, wherein the metal member is heated or heated under pressure in an aqueous alkaline solution wherein at least a manganese compound and a chelating agent are dissolved in water and whose pH value is adjusted to 9 or more, whereby a mold release agent or dirt is removed from the metal member without any pre-cleaning process. Also, the metal goods having excellent corrosion resistance and adhesion to the paint, wherein a surface treatment coating is formed on a metal member comprising a magnesium alloy and an aluminum alloy, including the reaction product of a metal and a surface treatment liquid under heating or under heating under pressure.
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