Aluminum castings refer to equipment and components made of pure aluminum or aluminum alloys obtained by casting. Generally, sand molds or metal molds are used to pour heated liquid aluminum or aluminum alloy into the mold cavity, and the obtained aluminum parts or aluminum alloy parts of various shapes.

Aluminum alloy has the characteristics of good corrosion resistance, low cost, recyclability, easy processing and light weight. Its application in automobile production can effectively reduce the waste of energy, and the proportion of raw materials in automobile has reached 60%. In terms of corrosio