Why choose aluminum supplier Chalco?
When choosing housing materials for mobile phones, digital and electronic products, the stability and machinability of aluminum plates are key to ensure that the aluminum housing resists pressure and protects electronic components. Used as a shell, the anodizing process is also an important factor, which can improve the corrosion resistance and hardness of the aluminum plate, and achieve various appearance effects. The 3C digital aluminum plate produced by Chinalco complies with ASTM B209 (American aluminum plate industry standard) and EN 485 (European aluminum plate industry standard) standards.
Chalco cooperates with many well-known digital 3C brands, including Apple, Huawei, Xiaomi, Samsung, LG, Konka and other Fortune 500 companies.
Chalco has a complete set of advanced material research and development, testing, and analysis instruments, which can meet the requirements of digital electronic structural parts such as stable structural strength, good formability, high hardness, and long service life. It can be easily punched, bent, Deep drawing, welding and other processing.
Specifications of 7075 T6 aluminum plate for middle frame and middle plate of mobile phone
| Alloy | 7075 |
| Temper | T6, T651 |
| Thickness | 1.50-12.50mm |
| Width | 600.0-2100.0mm |
| Length | 1000.0-12000.0mm |
| Typical socket id | 405mm, 505mm, 605mm |
| Anodic oxidation index | ★★☆☆☆ |
| Supply status | Sheet, Coil |
| Standard | EN485, ASTM B209, GB/T 3880, YS/T 711-2020 |
Chemical composition of 7075 T6 aluminum plate for middle frame and middle plate of mobile phone
| Element | Composition % |
| Si | 0.4 |
| Fe | 0.5 |
| Cu | 1.2-2.0 |
| Mn | 0.3 |
| Mg | 2.1-2.9 |
| Cr | 0.18-0.28 |
| Ni | - |
| Zn | 5.1-6.1 |
| Ti | 0.2 |
| Each | 0.05 |
| Total | 0.15 |
| Al | Remainder |
Mechanical properties of 7075 T6 aluminum plate for middle frame and middle plate of mobile phone
| Alloy | Temper | Hardness/MPa | Yield strength/MPa | Tensile strength/MPa | Elongation/% |
| 7075 | T6, T651 | 175-190 | 480-510 | 550-570 | 6-11 |
Anodizing parameters of 7075 T6 aluminum plate for middle frame and middle plate of mobile phone
| Alloy | Temper | Electrolysis time/min | Film weight/(mg/cm2) | Aluminum consumption /(mg/cm2) | Anode current efficiency/% | Film thickness/μm | Membrane density /(g/cm3) | Electrolysis voltage/V |
| 7075 | T6 | 20 | 1.541 | 1.426 | 98.78 | 7.5 | 2.09 | 13.7 |
| 40 | 2.5 | 2.83 | 98 | 15.2 | 1.64 | 13.8 | ||
| 60 | 2.838 | 4.235 | 97, 74 | 19.2 | 1.49 | 14 | ||
| 80 | 2.838 | 5.653 | 97.88 | 20 | 1.4 | 14 |
Material organization of 7075 T6 aluminum plate for middle frame and middle plate of mobile phone
Features of 7075 T6 aluminum plate for middle frame and middle plate of mobile phone
High strength: 7075 aluminum sheet plate has extremely high strength, stronger than ordinary aluminum alloy materials, and can withstand greater load and pressure.
High stability: 7075 aluminum plate has minimal deformation and high straightness after machining. The high stability enables the 7075 aluminum alloy to maintain good shape stability under stress, which is especially suitable for mobile phone mid-plates that require high dimensional accuracy and flatness.
Excellent corrosion resistance: 7075 aluminum sheet plate has good corrosion resistance, which can resist oxidation, corrosion and some chemical substances, so that it can still maintain stability in harsh environments.
Excellent machinability: 7075 aluminum sheet plate has good machinability, and can be processed and formed by milling, drilling, stamping and other processes to meet the needs of different shapes and sizes.
Anti-fatigue performance: 7075 aluminum sheet plate has good anti-fatigue performance, and can withstand cyclic stress and repeated loading for a long time without breaking or deforming easily.
Lightweight: although the 7075 aluminum sheet plate has high strength, its density is relatively low, so it has a light weight. This makes 7075 aluminum sheet an ideal choice for lightweight design in many fields.
Application of Chalco 7075 T6 T651 aluminum plate in mobile phone
The application of 7075 aluminum alloy in mobile phone manufacturing mainly includes the middle plate of the mobile phone, the middle frame of the mobile phone, the key and the tray, and the back shell of the mobile phone. They respectively undertake the functions of structural support, stability, durability and impact resistance.
Mobile phone middle plate: 7075 aluminum alloy can be used as the material of the mobile phone middle plate to provide structural support and stability to protect internal electronic components and provide good mechanical properties.
Mobile phone middle frame: the high strength and excellent rigidity of 7075 aluminum alloy make it an ideal choice for manufacturing mobile phone frames. It can provide sufficient structural support, protect internal electronic components, and provide additional protection in case of accidental bumps or stress.
SIM card holder, side button: SIM card holder and side button on mobile phones need durability and good mechanical properties. 7075 aluminum alloy can be used to make the SIM card holder and side button on the mobile phone to provide stable operation and long service life.
Mobile phone back shell: some high-end mobile phones may use 7075 aluminum alloy to make the back shell and frame to increase the overall strength and stability of the phone and provide higher resistance to twisting and impact.
Precautions for purchasing aluminum plates for middle frame and middle plate of 7075 mobile phones
Specifications and dimensions: choose the 7075 3C digital aluminum sheet plate specifications that suit you according to actual needs, including plate thickness, width, length and other parameters.
Surface quality: the surface of the 7075 3C digital aluminum sheet plate produced by Chalco Aluminum is smooth and flat, without obvious protrusions or depressions, no obvious cracks, oxidation, blemishes and other defects.
Supplier reputation and service: the supplier's reputation and service quality are also factors that you need to consider. Chalco Aluminum is a supplier with a good reputation and perfect after-sales service to ensure your purchasing experience is pleasant and smooth.
Test certificate: the test certificate is an important proof to measure the quality of aluminum strips. Chalco Aluminum can provide corresponding inspection certificates to ensure that aluminum sheets meet national or industry standards.
Packaging and transportation: Chalco Aluminum has fully considered the packaging and transportation methods of aluminum strips to ensure that they will not be damaged during transportation.
