Precision casting is a very important technology for the production of metal steel. It not only greatly shortens the working cycle and production cost of industrial production, but also improves the flexibility of castings. The technology is still being updated and created, in various forms, but sometimes there are castings with bubbles. This casting is unqualified. Let us talk about how to solve the bubble problem in precision casting.

1. With the development of industry, precision casting technology has been continuously improved and improved, and it has been loved and inherited by everyone. I hope that everyone will pay attention to protecting the castings during use, find problems constantly and solve them in time, so as to ensure a long service life and safe use of the castings.

2. Precision casting of various complex alloy castings, especially high-temperature alloy castings. For example, jet engine blades, streamlined shapes and cooling cavities can hardly be formed by machining processes. The casting process can not only mass production, ensure the consistency of the casting, but also avoid the stress concentration of the residual blade after machining.

3. Precision casting. Because investment castings have high dimensional accuracy and surface finish, they can reduce machining work, and only need to leave a small amount of machining allowance in the parts with higher requirements, and even some castings are only left for polishing, Polishing allowance can be used without mechanical processing.

4. Generally speaking, in order to solve the problem of bubbles in castings, many technicians will appropriately reduce the content of molten metal in the castings when processing and manufacturing castings, while increasing the air permeability of the sand mold, adding more to the cavity of each casting. This outlet can greatly reduce the frequency of bubbles in the casting.

The above is the cause analysis of the bubble problem in precision casting.