Aluminum alloy die casting is a very good metal product, which is widely used in automobile parts, electronic shell, communication, motor, aviation, ship, digital product shell, security product shell and new energy industry. It is mainly used for shell and mechanical parts. Aluminum alloy die casting has the following five advantages: 

① corrosion resistance; ② hardness, the hardness of pure aluminum is low, but The hardness of treated aluminum alloy can be close to or even higher than that of low carbon steel, which is an important factor for aluminum alloy die casting to play a role; ③ the specific gravity of aluminum alloy is light, and the specific gravity of aluminum alloy is only 2 / 3 of that of zinc alloy, which meets the requirements of automobile lightweight in the future; ④ high precision, good fluidity of aluminum alloy and easy cutting, dimensional accuracy can be achieved through die casting and post-processing The scrap and residue of aluminum alloy die casting can be directly returned to the material supplier, which not only protects the environment but also saves resources.