Can the iPhone 5 really sit on its butt| Love to play computer games - 上海419贵族宝贝-上海后花园1314-上海品茶网-阿拉爱上海

Some time ago, a netizen accidentally iPhone5 I was bent, and it was widely spread on the Internet. Finally, it went on TV, and many bought it iPhone5 Or the netizens who are going to buy iPhone 5 can't help worrying. Is iPhone 5 really so fragile? You can sit on your butt. So today, let me accompany you to analyze whether the iPhone 5 can sit on its butt.

Materials: The IP5 shell adopts the combination of metal and glass. The metal part is made of aluminum alloy with anodized aluminum process, covering the whole frame and most of the back cover. The upper and lower sides of the back cover are glass. Aluminum alloy is one of the most widely used nonferrous metal structural materials in industry. It has been widely used in aviation, aerospace, automobile, machinery manufacturing, shipbuilding and chemical industry. Pure aluminum has low density (ρ=2.7g/cm3), about 1/3 of iron, low melting point (660 ℃), and face centered cubic structure, so it has high plasticity (δ: 32~40%, ψ: 70~90%), is easy to process, and can be made into various profiles and plates, with good corrosion resistance; However, the strength of pure aluminum is very low, and the σ b value in annealing state is about 8kgf/mm2, so it is not suitable for structural materials. Through long-term production practice and scientific experiments, people gradually strengthen aluminum by adding alloy elements and applying heat treatment and other methods, thus obtaining a series of aluminum alloys. The alloy formed by adding certain elements can maintain the advantages of pure aluminum, such as light weight, but also have high strength, σ b values can reach 24~60kgf/mm2 respectively. This makes its "specific strength" (the ratio of strength to specific gravity σ b/ρ) better than many alloy steels and becomes an ideal structural material. The anodized aluminum of iPhone 5 actually refers to coating a layer of dense aluminum oxide on the aluminum alloy surface. In order to prevent further oxidation, its physical properties are the same as aluminum oxide.

Although the strength of the treated aluminum alloy is higher than that of pure aluminum, because the thickness of the mobile phone shell material after processing is relatively thin, even if the σ b value is raised several times, there is still the possibility of bending if the external force is relatively large. Moreover, it is not surprising that the body weight of more than 100 kg adults on a small mobile phone really bends.

In fact, as long as the mobile phone is subjected to a relatively large impact, it will be more or less damaged. However, many mobile phone cases are made of engineering plastics. Engineering plastics have good plasticity but low strength, and are easy to recover after being impacted and bent. Metal materials have high strength but poor plasticity, so the mobile phone case made of metal materials is also a double-edged sword. However, I personally think that as long as everyone has a good habit of using the phone, try to avoid putting the phone in a place that is vulnerable to damage, especially in the P pocket of our pants, otherwise your phone may be killed one day.