What effect does vacuum have on the properties of die castings?

2022-12-14

In the process of processing precision castings by traditional foundry, if the foundry uses vacuum assisted processing, the mechanical properties of castings can be better improved. However, people still need to continue to explore the processing technology in this area. The application of vacuum has been recognized by people, which can reduce the porosity defects of castings. In addition, the hole diameter in the precision casting is relatively small, and the distribution on the cross section of the casting is relatively uniform. It can be seen that vacuum plays a very important auxiliary role. However, due to different die casting methods and forms, the influence of vacuum on die casting performance is also different in the process of die casting.

Casting In the casting process, each kind of precision casting needs to be carried out very carefully. In addition, it requires standardized operational requirements. Among them, casting has three basic elements, which are very important. Many people should know the development of foundry in the industry. After so many years of development, there are many kinds of casting methods, among which low pressure casting is one of the common casting methods. Although it has many advantages, it has more or less defects in some aspects.

In the process of low pressure casting, although the problems of runner and riser are omitted, the gate still has a relatively obvious problem, which is limited. In addition, low pressure casting is not suitable for mass processing, because the productivity of this casting process is very low, the entire production cycle will be relatively long, and the data requirements for all aspects are high. The application of low pressure casting in some aspects is limited.

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