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Publish Time: 2021-12-08 Origin:https://www.hmaluminumsupply.com
Aluminum alloy is the most widely used non-ferrous metal material in industry. A series of aluminum alloys are formed by gradually adding a certain amount of elements such as silicon, magnesium, copper, zinc, and manganese to the aluminum.
Aluminum alloy maintains the advantages of pure aluminum, such as light weight, while improving its strength. Its tensile strength can reach 200-600 Mpa and its "specific strength" is better than many alloy steels, making it an ideal structural material.
The cost of aluminum alloy made by adding different metal elements will be different. The quality of aluminum-titanium alloy is good, but the general mobile phone rarely use this alloy because of its high price.
Mobile phone shells are more often made of 6xxx aluminum alloys. Some choose 7xxx aluminum. The 7 series aluminum alloy is mainly made of zinc, and a small amount of magnesium and copper. Its hardness is closer to that of the steel.
The typical alloys used in mobile phone is 6063 aluminum alloy and 7075 aluminum. Among them, the density of 6063-T6 is 2.72, the tensile strength is 220 MPa, the yield strength is 190 MPa, the HV hardness is 80, and the coating wear resistance (Poisson's ratio) is 0.33 (anodic oxidation).
With the requirements of thinner and lighter mobile phones, the aluminum alloys with higher strength such as 6061, 6013 and 7xxx aluminum have been used. The density of 7075-T6 aluminum is 2.81, tensile strength is 530 MPa, yield strength is 480 MPa, HV hardness is 175, and coating wear resistance (Poisson's ratio) is 0.33 (anodic oxidation).
Since the iPhone 5, Apple has adopted an all-metal body design. The aluminum alloy material makes the phone very light and the hardness is also guaranteed. With the anodizing process, the overall texture has been perfectly upgraded.
The HTC One M8 is the pinnacle of these. The entire back is covered by brushed aluminum sheet, and the frame and the back shell are integrally formed without any gaps. The curved back shell has a strong sense of quality.
With the development of dozens of years, we, Haomei Aluminum has solid base to provide clean aluminum material for the high-end applications including lithium-ion battery, lightweight automobile body, 3c products, aluminum brazing and other special uses.