Corrosion resistance of aluminum composite panel

- 2019-10-08 -

Aluminum composite panel has been widely used in doors and windows of buildings and curtain walls for many years because of its small specific gravity, easy processing and high mechanical strength. Aluminum is a relatively lively light metal with a silvery white luster. It is easy to process and has good performance.

The higher the purity of aluminum composite panel

 The higher the purity of the aluminum alloy sheet substrate, the better its corrosion resistance, mainly because pure aluminum plays a certain role in the air and oxygen, and produces a very thin layer on the surface of aluminum composite panel. The dense natural oxide film, which is formed faster and thicker than other metal oxide films, although it prevents further corrosion of harmful gases and moisture in the air, it also protects.

aluminum composite panel

Mechanical strength of aluminum composite panel

The mechanical strength of the aluminum composite panel is relatively high, but its corrosion resistance is low. However, although the corrosion resistance of pure aluminum is good, the mechanical strength is very poor, which restricts the application of aluminum to a certain extent. Therefore, the manufacturer has added an appropriate amount of magnesium and copper to the production of the aluminum composite panel substrate. There are also other metals such as zinc, which are made into various types, and the mechanical strength of the aluminum composite panel is greatly improved, and the range of application is greatly expanded.

aluminum composite panel

Corrosion resistance of aluminum composite panel

The corrosion resistance of aluminum composite panels worse than that of pure aluminum, so it may be corroded by oxidation. At this time, we need to apply powder to protect the aluminum composite panel profiles. In addition to its high corrosion resistance, the powder-coated aluminum composite board has many advantages such as diversified colors and good surface texture, and is compatible with various exterior wall paints to suit Different building styles.

aluminum composite panel

Mingtai aluminum implements the sustainable development policy in the production of aluminum composite composite panels, invests huge sums of money to introduce advanced foreign equipment, and enters the ranks of environmentally-friendly and efficient production. The main production equipment includes 5 semi-continuous casting production lines, 10 continuous casting and rolling production lines, 7 cold rolling mills, 10 foil rolling mills, straightening and straightening cleaning machines, flying shears, slitting machines and thick foil shears. , slitting and other equipment, and a (1 + 4) hot rolling production line with an annual output of 300,000 tons.

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