Aluminum alloy die castings are widely used, especially in the automobile industry, and the demand for aluminum alloy die castings is very considerable. Looking at the development of aluminum alloy die castings in China, in recent years, the capacity of aluminum alloy die castings in China is expanding. According to the statistics of the Die Casting Branch of the China Foundry Association, during the "12th Five-Year Plan" period, the productivity growth of China's aluminum alloy die casting industry has been maintained at more than 10%.