Anodic oxidation is different from oil injection

Plating: plating is the use of electrolytic principle in some metal on the surface of a thin layer of other metal or alloy plating process, is the use of electrolytic action made of metal or other materials adhered on the surface of the parts of a layer of metal film technique to prevent metal oxidation (rust), improve the wear resistance and electric conductivity, reflective resistance, corrosion resistance, copper sulfate, etc.) and create beautiful etc.

Spray oil is a kind of industrial product surface coating processing, spray oil processing is generally specialized in plastic spray oil, silk screen, pad printing processing, to withstand high temperature, friction, uv, alcohol, gasoline and other test product quality requirements. Spray oil can make the monotonous product looks more beautiful after spraying a variety of colors, at the same time because of a layer of protection can also extend the life of the product and service life.

Compared with oil spraying and electroplating, the anodes will not get rid of the paint when used for a long time, and the thermal conductivity of the anodes is more outstanding.

The anodes have fine frosting on the surface effect, the oil injection surface effect is more oily, and the electroplating effect has a brighter appearance.


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There are many surface treatment methods for aluminum alloy die castings, such as powder spraying, oil spraying, electroplating, oxidation and so on.

What are the advantages and disadvantages of anodizing aluminum alloy die castings

1. Corrosion prevention

Anodic oxidation can form a protective layer of oxide film on the surface of aluminum alloy die castings, thus increasing the density and corrosion resistance of the die castings.

2. Excellent decorative performance

Anodic oxidation not only can get a higher transparency of the oxide film, but also can be dyed with fuel into a variety of bright colors, and even if the special treatment, can make and ceramic similar coating effect.

3, wear-resisting

Hard anodic oxidation has not only high hardness and thickness, but also low roughness. Can greatly improve its wear resistance.

4, insulation

The oxide film has a high resistance and belongs to the category of insulator. Can play a good role as an insulating layer.

5. It can still be reprocessed after anodizing

Anodized films can be used as substrates for other spraying methods, such as painting, electroplating, etc., to increase adhesion.