铝合金外壳是许多设备的主要外壳材料，由于它具有良好的耐腐蚀性、导热性和可塑性，因此被广泛应用于电子、食品、医疗、航空航天、汽车制造等行业。然而，铝合金外壳经常因外力损坏而出现划伤，严重的划伤还会导致材料破裂。

　　那么，如何将铝合金外壳修复得像新的一样？

　　一、清理外壳

　　要修复铝合金外壳，首先要对外壳进行清理，去除污垢和杂物。可以使用家用的清洁剂，如油漆、油墨等，也可以使用专业的清洁剂。清洁后，用干布擦干外壳表面的水分，以免在修复过程中腐蚀外壳。

　　二、修补外壳

　　如果外壳只是轻微的划伤，可以使用玻璃纤维布来修补。将玻璃纤维布放在外壳上，用熔融胶带将其固定住，然后使用硅胶填充划伤部位。如果外壳划痕较深，可以使用玻璃纤维板修补。先将玻璃纤维板钉在划痕上，然后用硅胶填补划痕，使其平整光滑。

　　三、涂层保护

　　修复后，可以在外壳表面涂上一层清漆或者硅胶，以防止外壳受潮腐蚀。

　　如果你的铝合金外壳出现了划伤，不要担心，采取以上措施，就能将其修复得像新的一样！

　　Aluminum alloy shell is the main shell material of many equipments. Because of its good corrosion resistance, thermal conductivity and plasticity, it is widely used in electronics, food, medical, aerospace and automotive industries. However, the aluminum alloy shell is often scratched by external force, and the serious scratch will cause the material to break.

　　So, how to repair the aluminum alloy shell to look like new?

　　1. Clean the shell

　　To repair the aluminum alloy shell, the shell should be cleaned first to remove dirt and debris. Household cleaners, such as paint and ink, can be used, or professional cleaners can be used. After cleaning, use a dry cloth to dry the water on the surface of the shell to prevent the shell from being corroded during the repair process.

　　2. Repair the shell

　　If the shell is only slightly scratched, glass fiber cloth can be used to repair it. Put the glass fiber cloth on the shell, fix it with melting tape, and then fill the scratch with silicone. If the shell is deeply scratched, glass fiber board can be used to repair it. First, nail the glass fiber board on the scratch, then fill the scratch with silicone, and make it flat and smooth.

　　3. Coating protection

　　After repair, a layer of varnish or silicone can be applied to the surface of the shell to prevent the shell from being damp and corroded.

　　If your aluminum alloy shell is scratched, don't worry. Take the above measures and you can repair it to look like new!