Partial porcelain anodizing method for parts with precise dimensions and surface roughness of ra≤0.8
A technology of surface roughness and anodization, which is applied in the direction of anodic oxidation, surface reaction electrolytic coating, electrolytic coating, etc., can solve problems such as the influence of matching or positioning surface processing accuracy, failure to guarantee product use requirements, film layer pollution, etc., to achieve The effect of improving binding force
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[0021] An embodiment of the present invention is described below.
[0022] A partial porcelain anodizing method for parts with precise dimensions and a surface roughness of Ra≤0.8, comprising the following steps:
[0023] 1) Degreasing treatment: use gasoline to degrease the surface of the parts;
[0024] 2) Substrate surface pretreatment: immerse the parts in Arnoldine solution (concentration 1% ~ 3%) (5 ~ 10) min to improve the adhesion between the substrate surface and the protective coating;
[0025] 3) Heating and drying: Put the parts into the oven and heat them to (50-60) °C, keep them warm for 30 minutes and take them out;
[0026] 4) Coating the protective layer: paint the parts that do not need to be protected with a room-temperature-curing peelable paint (4-6) times, and park at room temperature until the parts are dry;
[0027] 5) Sculpt the part to be protected and clean the excess paint layer;
[0028] 6) Use gasoline or alcohol to degrease the parts that need...
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