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Anodic oxidation small classroom

Release time:

2022-03-21 16:16

To form a uniform and dense oxide layer on the surface of the product, this film can make the surface hardness of the product reach 200-300HV. If the special product can be hard anodized, the surface hardness of the product can reach 400-1200HV.

In addition, anodizing makes the product'sVery good wear resistanceIt can be used as a necessary process for aviation and aerospace related products.

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1. Common processes

● Common anodic oxidation processes include the natural color of wire drawing fog surface, the natural color of wire drawing bright surface, the dyeing of wire drawing bright surface and the dyeing of fog surface (which can be dyed into any color system). Polishing bright surface natural color, polishing fog surface natural color, polishing bright surface dyeing, polishing fog surface dyeing; Sand spray bright surface natural color, sand spray surface natural color. The above process can be used in lighting equipment.

2. Anodic oxidation process

Oil removal-alkali erosion-chemical polishing-neutralization

anodic oxidation-Dyeing-Sealing-Hot water washing-Drying

3, common quality abnormal judgment

●The surface appears mottling.It is generally due to poor metal properties or poor material itself. Treatment: Re-heat treatment, or replacement material.

●The surface appears iridescent.It is usually caused by anode operation error. Treatment method: power off and do anodic treatment again.

●The surface is bruised and severely scratched.Generally, it is caused by carelessness in the operation during transportation or processing. Treatment method: power off, polish and power again.

●White spots appear on the surface when stained.Generally, it is caused by oil or other impurities in the water when the anode is working.