IPhone5 can really sit bend it

Some time ago a friend accidentally sat bent over their iPhone5, passed around on the Internet, the last thing on television, and many buy the iPhone5 or ready to buy the iPhone5 users could not help but worry, iPhone5 that fragility? Can sat bent. So today, let the author accompany can all work together to analyze the iPhone5 sat bent.

Materials: the IP5 shell with metal + glass combination, metal parts are anodized aluminum technology of aluminum alloy material, covering the entire border, and most of the rear cover, back cover and two pieces of glass. Aluminium is the most widely used in the industry of a structure of non-ferrous metal materials, aeronautics, aerospace, automotive, machinery manufacturing, shipping and already widely used in the chemical industry. Pure aluminum of density small (ρ =2.7g/cm3), about is iron of 1/3, melting point low (660 ℃), aluminum is surface heart cubic structure, so has is high of plastic (δ: 32~40%, ψ: 70~90%), easily processing, can made various profile, and plate, anti-corrosion performance good; but pure aluminum of strength is low, annealing State σ b value about for 8kgf/mm2, so should not be for structure material. Through long-term practice and scientific experiments, people gradually joining elements, and using the method of heat treatment to strengthen the aluminum, which are a series of aluminum alloy. Add a certain element of alloys in pure aluminum, keeping light weight advantages but also has a high strength, σ b values can be up to 24~60kgf/mm2. That makes it "strength" (strength to weight ratio σ b/ρ) is better than a lot of steel, the ideal structure of the material. IPhone5 Anodic aluminum oxide in fact refers to a layer of dense alumina coating on aluminum alloy in order to prevent further oxidation, and shall have the same physical properties of alumina.

Despite treatment of high strength aluminum alloy in strength than pure aluminium, but because the mobile shell thickness of processed and relatively thin, σ b value even to mention several times but if the force is large there will still be the possibility of bending, not to mention the more than 100 kilos of weight in adults if bent at a small mobile phone also comes as no surprise.