What is the difference between vacuum casting and expendable pattern casting?
The molten metal depends on air pressure into the mold, and then clear the air, forming a vacuum casting.
This method is mainly used with exquisite details or small parts of jewelry.EPC (also called EPC) is similar to the size and shape of casting wax or bond bubble model combined the cluster model, brush coating and drying, buried in the dry quartz vibration model, pouring under negative pressure, the model of gasification, liquid metal occupy model, a new method of casting casting the formation of solidification after cooling.
These two are two completely different concepts, not much contact. Vacuum casting process using ventilation casting.