Precision casting aluminum is a kind of high strength, low weight aluminum alloy material, it has excellent mechanical properties, corrosion resistance and wear resistance. In addition, precision cast aluminum also has high thermal conductivity and electrical conductivity, and is easy to process and manufacture into various shapes and sizes of parts and products. Precision casting aluminum is usually used in the manufacturing of automotive, aviation, military, electronics, construction and other fields, especially in the automotive field, widely used in engines, transmissions, chassis and other components and components, is a perfect combination of traditional casting materials and modern advanced materials.