Storage Tips for Aluminum Alloy Die Casting Parts

Even if aluminum alloy die casting has many good advantages, unreasonable storage will still have a bad effect on the aluminum diecast parts. This article covers corrosion types and proper storage methodsof aluminum alloy die castings.

Aluminum alloy die casting parts have the characteristics of high strength, light weight, corrosion resistance and durability, but unreasonable storage and maintenance will affect the shape of the aluminum alloy and the color of the surface.

The corrosion phenomenon occurs when the aluminum alloy die casting parts are not stored well and the maintenance is not good. After corrosion in daily life aluminum alloy die casting parts have these below features:

1. Pitting corrosion.

Also known as hole corrosion, pitting corrosion is a kind of local corrosion which is produced in the form of tip shape, dot and hole.

2. Uniform corrosion.

In phosphoric acid and sodium hydroxide solution, the oxidation film of aluminum alloy will dissolve and uniform corrosion occurs. At this time the dissolution rate is also uniform.

3. Crevice corrosion is a kind of local corrosion.

When in electrolyte solution, the gap formed between metal and metal or metal and nonmetal, its width is enough to make media immersion and the media is in a state of stagnation, makes the crack phenomenon known as the crevice corrosion of the internal corrosion intensifies.

4. Stress Corrosion Cracking.

A kind of damage that occurs under the combination of stress (tensile stress or internal stress) and corrosive medium is called stress corrosion cracking.

Then, what should be noticed when storing the aluminum die casting parts?

1. Keep the aluminum alloy die castings in a ventilated and dry environment to avoid direct sunlight. Because aluminum is a reactive metal, it is easy to oxidize after contact with certain temperature.

2. Avoid contact with other chemical elements which will cause changes in aluminum alloy die casting parts.

3. During storage aluminum diecast cannot contact with water. Once contact with water, aluminum alloy die casting parts are easy to be black.

4. The most important is to set up an independent space to store the aluminum alloy die castings to prevent changes with other objects.

The above are the corrosion types of aluminum alloy die casting and proper storage methods. For more aluminum alloy die casting products, you can contact us for professional die casting services.