| abstract |
The invention discloses a kind of colored epithelium manufacturing process for metal surface, it is mainly comprised the following steps：Plasma micro-arc oxidation processing is carried out to metal surface using the pulse power.The electrolyte used includes：6 10g/L basal liquids, 1 5g/L hole sealing agents, 1 5g/L stabilizers, 0.4 0.8g/L dispersants and 0.3 2g/L rare earth salt additives.Present invention process can carry out sealing of hole directly during plasma micro-arc oxidation, without extra post processing sealing of hole step.Manufacturing process cost of the present invention is low, and step is simple, without extra cumbersome technique, requires low to production equipment, the chromatic metallic epithelium wearability being prepared is high, good corrosion resistance. |