The advantages of precision casting technology

The advantages of precision casting technology

The silica sol process, also known as investment casting, is an excellent casting process with little or no cutting, and is widely used in the casting industry. It is not only suitable for casting various types and alloys, but also produces castings with higher dimensional accuracy and surface quality than other casting methods. Even complex, high-temperature resistant, and difficult to process castings that are difficult to cast by other casting methods can be cast using investment casting precision casting. Today we will discuss in detail the advantages of precision casting technology.

The investment casting process, in simple terms, is to use fusible materials (such as wax or plastic) to make a fusible model (referred to as investment mold or model), coat it with several layers of specially made refractory coating, dry and harden it to form a whole shell, and then melt the model from the shell with steam or hot water. When using high-strength shell, the demolded shell is directly roasted, and after roasting, molten metal is poured into the shell to obtain the casting.

Advantages of investment casting:

1. Due to the high dimensional accuracy and surface smoothness of investment castings, mechanical processing work can be reduced. Only a small amount of machining allowance can be left in the parts with higher requirements, and even some castings can be used without mechanical processing, leaving only grinding and polishing allowance. It can be seen from this that using investment casting method can greatly save machine equipment and processing time, and greatly save metal raw materials.

Precision machining