Asustek Computer Inc.

Jui-Huang Weng

Min-Hua Lin

Hsin-An Shu

The disclosure provides a surface treatment method which is suitable for a metal substrate. The metal substrate has an appearance surface. The surface treatment method comprises the following steps: first, applying surface sandblasting treatment to an appearance surface to form a sandblasted surface; subsequently, applying micro-arc oxidation treatment to the sandblasted surface in combination with an electrolytic solution to form a micro-arc oxidized surface; and then forming a coating to cover the micro-arc oxidized surface; wherein, the components of the electrolytic solution comprise sodium phosphate, sodium silicate, sodium aluminate, potassium fluoride, potassium hydroxide, ammonium vanadate, potassium vanadate, disodium ethylenediaminetetraacetic acid (NaEDTA) and sodium tetraborate.

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Taipei, Taiwan

Jui-Huang Weng