Aluminum alloys have the features of corrosion resistance, fast heat transfer, low density, and high strength. It is widely used in the transportation industry, aviation industry, construction and decoration, and daily life. However, aluminum and aluminum alloys are low in hardness, non-abrasion resistant, and prone to intergranular corrosion. These disadvantages affect the application range and service life. The following small series introduces the factors affecting the surface treatment of aluminum and aluminum alloys and the characteristics of aluminum alloys.
Factors affecting the surface treatment of aluminum and aluminum alloys
1. Aluminum and aluminum alloys have extremely high affinity for oxygen.
2. Aluminum is an amphoteric metal. Reactions that occur in solution are more complicated. Special aluminum alloys
3, aluminum and aluminum alloy can not be electroplated in places where the temperature changes, this will make the adhesion between the coating and aluminum and aluminum alloy is not strong.
4, aluminum and aluminum alloy plating the biggest problem is that before processing is more troublesome, poor quality control, will greatly limit the use of aluminum alloys.
Aluminum alloy features
1, aluminum is easy to form a variety of alloys: aluminum alloy can meet many performance requirements, can meet the needs of mechanical properties and corrosion performance. In addition, the aluminum alloy can be further strengthened by heat treatment, and its specific strength can even be comparable to high-quality steel.
2, the formation of good processing: aluminum alloy pressure out of the production of products: tubes, rods, foils, etc., and the product is widely used, the alloy can also be car, milling, pinning, planing and other mechanical processing.
3, high thermal conductivity: Aluminum thermal conductivity is not worse than copper, whether it is heating or cooling is a good metal medium, so in the chemical industry, the oil industry and the food industry, are widely used.
4, after the polishing of aluminum alloy is relatively strong, the surface of the white light reflectance can reach 85% or more.
Editor's summary: The factors affecting the surface treatment of aluminum and aluminum alloys, as well as the characteristics of aluminum alloys, are introduced here, and we hope to be helpful to everyone. If you want to know more about yourself, you can follow the information on this site.
Aluminum alloy aluminum surface treatment
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