7075 material aluminum profile oxidation is not good reason analysis!
7075 refers to a commonly used alloy in the 7 series aluminum alloy, the best strength of the more common aluminum alloy is 7075 alloy, widely used in CNC cutting parts, suitable for aircraft frames and high-strength accessories. 7 series aluminum alloys contain zinc and magnesium. Zinc is the main alloying element in this series, so the corrosion resistance is quite good, and a little magnesium alloy can make the material can reach a very high strength after heat treatment.
7 series aluminum alloy belongs to Al-Zn-Mg-Cu series superhard aluminum, which has been applied to the aircraft manufacturing industry in the late 1940s and is still widely used in the aviation industry. It is characterized by good plasticity after solid solution treatment, particularly good heat treatment strengthening effect, high strength below 150℃, and particularly good low temperature strength; Poor welding performance; Prone to stress corrosion cracking; Need to be coated with aluminum or other protective treatment. Two-stage aging can improve the resistance to stress corrosion cracking. The plasticity in the annealing and hardening state is slightly lower than the same state of 2A12, slightly better than 7A04, the static fatigue of the plate. Notch sensitive, stress corrosion performance is better than 7A04. Density is 2.85g/cm3.
Product features:
1.High strength heat treatable alloy.
2.Good mechanical properties.
3.Good usability.
4.Easy to process, good wear resistance.
5.T7351 state enhances corrosion fracture resistance
6.High-strength materials for high-pressure structural parts.
7075 materials are generally added to a small amount of copper, chromium and other alloys, of which A7075-aluminum alloy is particularly high-quality,
Known as the best aluminum alloy products, high strength, far better than any soft steel. The alloy also has good mechanical properties and anode reaction.
Representative applications are aerospace, mold processing, mechanical equipment, fixture,
It is especially used in the manufacture of aircraft structures and other high-stress structures requiring high strength and strong corrosion resistance.
Main applications: Aviation fixtures, trucks, tower buildings, ships, pipelines and other applications that require strong construction. Such as: aircraft parts, gears and shafts, fuse parts, instrument shafts and gears, missile parts jump valve parts, turbines, keys, aircraft, aerospace and defense applications.