Although the use of gravity casting machines to produce castings is used in many industries, and the castings produced are well received, castings still occasionally experience shrinkage. Casting products will be inconsistent in size when they shrink, and manufacturers are anxious to avoid this situation. But in fact, Kuntai Casting Machine tells you that such physical and natural shrinkage cannot be avoided, but it can be improved.

The main reason for the shrinkage of castings is the shrinkage of casting products caused by uneven wall thickness, heat dissipation, and solidification conditions during the casting process. Therefore, we can feed the shrinkage parts by enlarging the reserved size, changing the mold design or casting process, or setting up a special feeding system. During the casting process, improved processes can delay and even out the shrinkage of the casting.

In the production of gravity casting machines, the pouring temperature during casting can also be reduced, the pouring time can be extended, and the machining allowance for shrinkage can be enlarged to improve the shrinkage of the casting. Although there is no way to avoid casting shrinkage, manufacturers should try their best to improve shrinkage through the above measures, so as to reduce the amount of secondary processing of casting products and thereby reduce production costs.