According to the different alloy materials, aluminum alloys can be divided into 1 series to 9 series. The specific model names in each series are generally four digits, such as 6061, 7075, etc. The body material of the iPhone6S is the 7 series aluminum alloy. . The 7 series aluminum alloy is mainly composed of zinc, and magnesium and copper are added in a small amount. The hardness of the aluminum alloy is closer to the hardness of the steel-but it is still a pit! 6 series aluminum alloys use magnesium and silicon as the main alloying elements and are currently widely used alloys.
Structural design method:
Overall CNC+nano-injection, CNC+dispensing/adhesive/locking screws for exterior decoration, CNC+internal aluminum alloy die-casting sleeve beer+nano-injection method, forging+CNC+nano-injection method, etc.
Process treatment: anodizing
Advantages: Compared with the low-key stainless steel,
Aluminum alloy materials are more easily processed into high-end, beautiful, and shining. Secondly, the aluminum alloy material is very light, and the specific gravity is only one third of that of stainless steel, which means that the same volume of stainless steel mobile phones is almost three times heavier than aluminum alloy. This is why the iPhone5 is so much lighter than the iPhone4S. Third, scratch resistance, aluminum alloy materials are not strong in strength, but the surface hardness reaches sapphire level, so mobile phones using aluminum alloy materials may bump very close, but rarely have scratches. Fourth, the aluminum alloy material is highly dyeable. It is because of the replacement of aluminum alloy that Iphone and other mobile phones can have what we call “local gold”, “high-end gray” and other colors.
In addition, the aluminum alloy material has the characteristics of high temperature resistance, no fingerprints, anti-static, environmental protection and non-toxic.