就像人体有皮肤一样,飞机表面也有一层薄薄的蒙皮,它要维持符合空气动力学的曲面,要足够强硬,还要耐腐蚀、柔韧、光洁、轻巧……你知道中国最新研制的C919大飞机的蒙皮用了什么材料吗?答案是:铝锂合金。关于铝金属,你看家里的铝锅,一敲一个印子,就知道它不够强硬。那么,关键就在这个锂金属了。下面,让我们来看一看这种非常“顽皮”的锂金属。 Just like the human body has skin, the aircraft has a thin skin on the surface, it is to maintain aerodynamic surface, to be strong enough, but also corrosion-resistant, flexible, smooth, lightweight ... ... you know China’s newly developed C919 large aircraft skin used what material? The answer is: aluminum lithium alloy. As for the aluminum metal, you look at the aluminum pan in your house and you know it is not tough enough. Well, the key is in this lithium metal. Next, let’s take a look at this very “naughty” lithium metal.