Why do many brands of tablet computers choose alumina board as the shell?

Many brands of tablet computers choose alumina as the shell, mainly because of its high strength, light weight, good heat dissipation and beautiful appearance, which can meet the needs of tablet computers in performance, portability and beauty. The details are as follows:

Strength and weight advantages: After anodic oxidation treatment, the alumina film formed on the surface of the alumina plate has extremely high hardness, and Mohs hardness can reach 2.5-3.5, which can significantly improve the overall structural strength of the shell and effectively resist the deformation caused by extrusion and collision in daily use. At the same time, the density of aluminum is only 2.7 g/cm, and it is light, which is convenient for the thin and light design of tablet computers and improves the convenience for users to carry and use.

Good heat dissipation performance: aluminum has good thermal conductivity, and the aluminum oxide plate can quickly conduct the heat generated by the internal components of the tablet computer to the surface and radiate it, which is helpful to reduce the internal temperature and ensure the key components such as the processor to work in a suitable temperature range, thus improving the stability and service life of the equipment.

Strong corrosion resistance and wear resistance: the aluminum oxide film formed by anodic oxidation has stable chemical properties, excellent corrosion resistance, resistance to corrosion by acid, alkali, salt and other substances, and is not easy to rust and corrode in harsh environments such as humidity and high salt. At the same time, the oxide film has excellent wear resistance, which can effectively resist the friction and scraping in daily use, and keep the tablet computer shell as clean as new for a long time.

Beautiful and diverse appearance: the surface of alumina plate is not covered with paint, which retains the original metallic color of aluminum plate and has a unique metallic texture, adding fashion and high-end temperament to tablet computer. Moreover, through dyeing and other treatments in anodic oxidation process, alumina plates can present colorful colors and patterns, which can meet the personalized aesthetic needs of different brands and users.

Excellent machinability: the alumina plate has moderate hardness, good machinability, easy bending and forming, continuous high-speed stamping, convenient processing into various shapes and sizes of tablet computer shells, and is not easy to crack or deform during processing, which can ensure high machining accuracy and meet the requirements of product design and production.

Environmentally friendly and recyclable: aluminum is a recyclable metal, and alumina plate can be completely recycled after its service life, which reduces the waste of resources and conforms to the concept of environmental protection. At the same time, it does not contain harmful substances in the production process and is environmentally friendly.