ã€China Aluminum Network】 1. The higher the purity, the better the corrosion resistance. As we all know, the effect of pure aluminum and oxygen in the air will produce a thin layer of dense natural oxide film on the exterior of aluminum, which is more than other metals oxidation. The film is generated quickly and thickly, thereby impeding the corrosion of harmful gases and moisture in the air, and has a maintenance effect.
2, although the corrosion resistance of pure aluminum is good, but the mechanical strength is poor, which restricts the use of aluminum to a certain extent, therefore, people in the aluminum to participate in the right amount of magnesium, copper, zinc and other metals, made of various types Aluminum alloys and aluminum alloys have high mechanical strength, greatly improve the mechanical strength of aluminum, and greatly expand the scale of use. Although aluminum alloys have high mechanical strength, they have poorer corrosion resistance than pure aluminum, and thus can be corroded by oxidation. This requires the application of powder coating to maintain aluminum alloy profiles. Aluminum alloys have been used extensively for doors, windows, curtain walls and other commodities for many years because of their small specific gravity, easy processing, and large mechanical strength.
Through powder coating, aluminum profiles have many advantages such as high corrosion resistance, color diversification, and good appearance, etc., and they are used in accordance with different construction of exterior wall coatings to build colorful and beautiful buildings.
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