Stainless steel castings are very common in our daily life. We all have items related to stainless steel in our homes, such as stainless steel pots, bowls, knives, and so on. It is closely related to our lives, so do you know how stainless steel castings are formed? The editor has collected some relevant information about the casting process of stainless steel castings online and shared it with everyone.

The so-called investment casting process only requires the use of fusible materials to make a fusible model, then applying a few layers of special refractory coatings, drying and hardening. The shell is melted from the shell by steam or hot water, then placed in a sandbox and filled with dry sand around it. The mold is then placed in a calcination furnace and subjected to high-temperature calcination. After firing the mold or shell, pour molten metal into it to obtain the casting.

The dimensional accuracy of precision castings is high. However, due to the complex process of precision castings, there are many factors that affect the dimensional accuracy of castings. When using die casting molds, the surface shape of the mold cavity is high. Due to the use of smoothness, the surface smoothness of the investment mold is also relatively high.

In addition, the shell is made of high-temperature resistant special adhesives and refractory materials, and the refractory coating is coated on the investment mold. The inner surface of the mold cavity in direct contact with the molten metal has high fire resistance. Surface smoothness. Therefore, the surface finish of investment casting is higher than that of conventional casting.

The advantage of precision castings is that they have high dimensional accuracy and surface smoothness, which can reduce machining work, but also require a higher number of parts. Parts can have a small amount of machining allowance. Even some castings only require polishing and polishing, and can be used without processing.