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Industrial aluminum profiles will experience pitting corrosion in fresh water

Update time : 2022-09-20 17:59:33

Aluminum profiles are used in many fields, and those used in industry are called industrial aluminum profiles. Because they are used in industry, they may also be corroded during use. Because there are many industries, corrosion is also different types! So what are the types of corrosion of industrial aluminum profiles?

The first one is pitting corrosion. Pitting corrosion can also be called pit corrosion. It is a very localized corrosion form that produces pinpoints, spots and holes on the metal. Aluminium will suffer pitting corrosion in the atmosphere, fresh water, and neutral aqueous solutions. In severe cases, it can also lead to perforation. However, the corrosion holes may eventually stop developing, and the amount of corrosion is maintained at a limit value. Pitting erosion is a distinct form of anodic reaction and is an autocatalytic handle. The second is galvanic corrosion. Galvanic erosion is also a characteristic erosion form of aluminum. The natural latent of aluminum is very negative. When aluminum is in contact with other metals, aluminum is always in the anode to speed up its erosion. Galvanic erosion can also be called bimetallic erosion, and the severity of its corrosion is determined by the relative position of the two metal potential series.

The application of industrial aluminum profiles has become the top priority of the country's manufacturing industries such as road transportation, aerospace, national defense, security and military, because aluminum has high-quality conductive heat pipe heat dissipation, lightweight concrete material, soft ground, good plasticity, corrosion resistance and resistance. It is warm and can be acquired indefinitely and is used in various fields. From clothing zippers and food packaging materials to space shuttles and high-speed trains, aluminum is everywhere. In social life, whether it is food or beverages, the consumption of metal aluminum will gradually increase.

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