The mold used for impregnation of aluminum alloy die castings (title: mother of industry) can be used with almost no loss, reducing or eliminating mold costs. Non-ferrous metal casting Non-ferrous metal smelters often supply metal ingots with a certain chemical composition for subsequent processes to formulate various alloys; smelters and processing plants are also often separated. At the same time, it also abandons the traditional core setting process, which saves labor and reduces manufacturing costs, and greatly reduces labor in all links, and reduces costs in disguise from worker wages. It has been found through experiments that the sand for impregnation of aluminum alloy die castings can be recycled, with a loss of 2% -5%. Secondly, the foam model used for infiltration of aluminum alloy die castings is mechanical) foaming, while ensuring the quality of the model, the production speed is also quite fast; and the infiltration process simplifies the cumbersome steps of traditional processes, such as modeling the core, not only laborious And inefficiency. Nonferrous castings are nonferrous alloys used for casting castings (see Nonferrous Metals). They are a type of casting alloy. There are mainly cast copper alloys, cast aluminum alloys, cast magnesium alloys, etc. Because aluminum alloy die-casting parts are impregnated into one box with multiple injections, and multiple boxes can be poured at the same time until the metal solution is used up. In addition, the impregnation of aluminum alloy die-casting parts eliminates the defects or scraps due to the lower core because of the need to shape the bronze gear Manufacturers lower core; of course, the box is not used to avoid the flash caused by the box. Defects such as burrs or waste products improve product accuracy. Nonferrous casting Nonferrous alloy casting. Among nonferrous metal alloys, copper alloy, aluminum alloy, magnesium alloy, zinc alloy, etc. can be used for casting. After the aluminum (Al) alloy die-casting parts are released, most of the coating can be naturally peeled off and there is no burr, so the cleaning time can be reduced by more than 50%, and the cleaning cost can also be reduced. Because aluminum alloy die castings are impregnated with dry sand solid negative pressure casting, the defects such as porosity and sand holes in the castings are eliminated or reduced, and the surface finish and dimensional accuracy (degree) are close to precision casting.