First, there must be scientific management and strict operating system.

Second, we should be willing to invest in molds. Mold design of casting system plays a decisive role in casting quality. Mold design and manufacture must be scientific and accurate.

Thirdly, the process controls the melting of materials (internal structure of materials, casting temperature) and strictly follows the parameters of the control plan.

Fourth, we should always check the performance of mechanized equipment to ensure its stability and accuracy.

Controlling the uneven distribution of crystal phase

The uneven distribution of crystalline phase is mainly caused by poor temperature control during casting, so the casting temperature, heat preservation process and cooling time should be strictly controlled.

At present, the crystalline phase of castings is homogenized with furnace heating, heat preservation and cooling, which is somewhat similar to the process of tempering at medium temperature.