Lost foam casting (also known as full mold casting) is to bond and combine foam models similar to the size and shape of the castings into model clusters. After brushing with refractory coatings and drying, they are buried in dry quartz sand for vibration modeling, and poured under negative pressure , The model is vaporized, the liquid metal occupies the position of the model, solidified and cooled to form a new casting method.
The advantages are: high casting precision, smooth surface, reducing cleaning. Flexible design. There is no sand core in traditional casting. Reduce the weight of the casting blank, and the machining allowance is small. Can realize large-scale, mass production.