Surface treatment method for metal substrate and coated article manufactured by the same

摘要

A surface treatment method for metal substrate includes: a metal substrate is provided; a first color layer is deposited on the metal substrate, the first color layer being a TiC layer or a TiN layer; a second color layer is deposited on the first color layer, the first color layer being a CrC layer or a CrN layer, the color of the first color layer being different from the color of the second color layer; forming a shielding layer on partially of the second color layer; electrochemical etching the metal substrate, the second color layer not covered with the shielding layer being removed to form a recessed portion, the recessed portion being extend through the second color layer. A coated article for manufactured by the surface treatment method is also provided.

主权项

1. A coated article comprising:
a metal substrate; a first color layer formed on the metal substrate, the first color layer being a TiC layer or a TiN layer; a second color layer formed on the first color layer, the first color layer being a CrC layer or a CrN layer, the color of the first color layer being different from the color of the second color layer; and a recessed portion formed on the second color layer, the recessed portion being extended through the second color layer, a titanium dioxide layer being formed on the second color layer corresponding to the recessed portion.