The aluminum casting process starts with pouring molten metal into a prepared mold and making it into the desired shape and functional parts during the cooling process. Casting is a common production method in the aluminum casting process. It is widely used because of its low cost and great process flexibility. Large-scale castings with complex shapes can be produced through the process. Aluminum casting occupies a large proportion in mechanical production, such as machine tools and cars. , tractors and other products are an indispensable process.
The improvement of aluminum casting’s requirements for casting quality, casting accuracy, casting cost and casting automation, casting technology is developing in the direction of refinement, large-scale, high quality, automation and cleaning. Casting technology, special casting technology, casting automation and casting molding wholesale Lighting parts foundry simulation technology have developed rapidly. The main types of aluminum casting The main process of aluminum casting includes: metal smelting, model making, pouring and solidification, and demoulding finishing. The main materials for casting are cast steel, cast iron, cast non-ferrous alloys (copper, aluminum, zinc, lead, etc.).
Aluminum casting process can be divided into sand casting process and special casting process. When limiting the investment mold, the mold with high surface finish of the cavity is selected, so the surface finish of the investment mold is also relatively high. In addition, the shell is made of a refractory coating made of a special high-temperature-resistant binder and a refractory material, which is coated and hung on the investment mold, and the inner surface of the cavity that is in direct contact with the molten metal has a high smoothness. Therefore, the surface finish of investment castings is higher than that of general castings.
The biggest advantage of aluminum casting in use is that investment castings have high dimensional accuracy and surface finish, so machining operations can be reduced during operation, but only a small amount of machining allowance is left on the parts with higher requirements. However, even some castings only leave grinding and polishing allowances and can be used without machining. It can be seen that the use of investment casting method can save a lot of machine tool equipment and processing time, and greatly save metal raw materials.
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