Application of aluminum alloy in electronic equipment and other fields

For the application and development needs of aluminum alloy processing technology in the future of consumer electronics, we focus on the in-depth application of aluminum alloy in the field of consumer electronics, open up communication channels between science and technology enterprises and brand manufacturers, and expand the application of aluminum in the consumer electronics market. Aluminum alloy is more and more widely used in the appearance requirements of consumer electronic products.

With the rapid development of the consumer electronics market, the outer packaging of various consumer electronics products is changing to aluminum alloy. The reason is that the cost of aluminum alloy is decreasing day by day, and the products are light, environmental protection, practical and beautiful.

Aluminum alloy is mainly reflected in the form of shell, frame, radiator and aluminum tube in consumer electronics products. Among them, 5000 series and 6000 series are the most used aluminum alloy series, and 7000 series aluminum alloy is mainly imported, and only a few companies such as Apple use it in high-end products. At present, the following alloy series are mainly used:

1, 5 series (mainly magnesium) The main element of this series of aluminum plates is magnesium, and the magnesium content is between 3-5%. Also known as aluminum magnesium alloy. The main characteristics are low density, high tensile strength and high elongation. It is widely used in conventional industry. The processing technology is continuous casting and rolling, which belongs to the hot-rolled aluminum plate series, so it can do oxidation deep processing. 5000 series aluminum plate is one of the more mature aluminum plate series in China.
2, 6 series (mainly magnesium and silicon) mainly contains magnesium and silicon two elements, is a cold treatment aluminum forging products, suitable for corrosion resistance, oxidation requirements of high applications. Good usability, excellent interface characteristics, easy coating, good processability

3, 7 series (mainly zinc) mainly contains zinc element, is aluminum magnesium zinc copper alloy, is heat treatable alloy, belongs to super hard aluminum alloy, has good wear resistance. The main feature is high hardness, which requires high strength, strong corrosion resistance of high stress structural parts, mold manufacturing.

In order to improve corrosion resistance, the aluminum alloy shell surface of the mobile phone will be artificially anodized to make the appearance more beautiful and improve the surface hardness. The quality and adhesion of the anodic oxide film directly affect the appearance quality and corrosion resistance of the mobile phone. 7 series aluminum alloy due to the high alloy composition, these alloy elements in the process of conventional melting and casting aluminum rod is difficult to avoid uneven distribution, resulting in polarization, also known as macro segregation. Partial segregation will be partially improved during subsequent homogenization and extrusion of aluminum, but it cannot be completely eliminated. The existence of segregation means that the composition of each part of the material is not evenly distributed, which will cause the quality and adhesion of the anodic oxide film to be different, resulting in appearance defects such as color difference after oxidation, and the use of unstable performance, and the adhesion of the oxide film in some positions is not enough and easy to fall off. Once the protection of the oxide film is lost, coupled with hand sweat, humid air and accelerated corrosion in high temperature weather.

With the progress of science and technology, people's life, entertainment, work and office are inseparable from computers. Similarly, as one of the most abundant metals on Earth, aluminum is used in innovations in aluminum application technology, computer mainframes, keyboards, mice, mouse pads, and aluminum applications. This is mainly based on the heat dissipation characteristics of aluminum alloys and the advantages of simple surface treatment.