Industrial aluminium profile generally need of industrial aluminum anodic oxidation, to increase the corrosion resistance and wear resistance of aluminum. General aluminum manufacturers also have aluminum anodic oxidation workshop, for supporting services. Aluminum actually I want to say today is more than a way of oxide anode oxidation, still have a kind of chemical oxidation, but this way of oxidation of oxide film is thin, is not very common. Today let's say that two types of oxidation of difference.

First of all, we come to know about the both the principle of oxidation. Industrial aluminum anodic oxidation is be placed in the acid and alkali solution, will lead to high voltage direct current (dc) on both ends of the aluminum, the electrolytic reaction, make aluminum surface forming a dense layer of transparent oxide film layer. Chemical oxidation without electricity, aluminum just need to soak in the chemical liquid medicine make aluminum oxidation reaction on the surface of the aluminum oxide film. so

1, is a kind of electrochemical anodic oxidation reaction, chemical oxidation belongs to pure chemical reaction.

2, anodized oxide film thicker, can reach 10-15 mu, chemical oxidation with thin oxide film, only 0.3 ~ 0.5 mu.

3, after the anodic oxidation of industrial aluminum is not conductive, and chemical oxidation of aluminum after good electrical conductivity. Because the anode oxidation membrane thicker, alumina is insulation, so the parcel with oxide film of aluminum is insulated. And chemical oxidation film is very thin, it will not affect the conductivity of aluminium profile, so chemical oxidation is also called the conductive oxidation. With the requirements of the conductive aluminum products tend to adopt the way of chemical oxidation.

4, after the anodic oxidation of industrial aluminum hardness and abrasion resistance will also increase, chemical oxidation, does not have what change.

5, aluminum anodic oxidation stain resistant, easy to clean. Conductive oxide aluminum not stain resistant, easy to leave fingerprints.