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Corrosion Resistance Of Aluminum Alloy Profiles

Mar 20, 2018

Aluminum alloy profiles have been widely used in building doors and windows, curtain walls and other products because of their small specific gravity, easy processing and high mechanical strength. Aluminum is a relatively active light metal with a silver white luster.

Aluminum alloy profile

The corrosion resistance of aluminum alloy profiles has two characteristics as follows:

The higher the purity, its corrosion resistance is better, mainly because of pure aluminum has a certain role in the air and oxygen on the surface of the aluminum production was a thin and very dense natural oxide film, than it is to other metal oxide film generated faster but also much thicker, although it stopped the further corrosion of harmful gases and moisture in the air, but it still plays a protective role.

The mechanical strength of the aluminum alloy profile is high, but its corrosion resistance is low. While the corrosion resistance of pure aluminum is good, but the mechanical strength is poor, in a certain extent this is constrained by the application of aluminum, so people joined the amount of metal magnesium, copper and zinc and other in aluminum, made of various types, and will let the aluminum mechanical increase well, the application range is greatly expanded, but its corrosion resistance than pure aluminum, so there may be due to oxidation corrosion. At this time we need to carry out powder coating to protect the aluminum alloy profiles.

It has many advantages, such as color diversity, surface texture and many other advantages. It is compatible with all kinds of architectural exterior wall coatings, so as to adapt to different architectural styles.