What are the advantages and disadvantages of the precision casting of water glass sand compared with that of chilled resin sand casting?
Water glass sand good deformability, good collapsibility, same size high accuracy without resin sand. The resin sand has high surface precision and high strength at high temperature, but the resin sand is easy to crack
The cost of steel water glass sand should be lower, but the collapsibility of sodium silicate sand, sand is not easy. If continuous sand mixing machine is used to mix sand, then it will be much lower than roller mixer. Resin sand steel should choose corresponding resin technology according to the characteristics of the product, the resin sand is higher, casting size and surface smoothness is better, and better the collapsibility of the resin sand, sand cleaning convenient, suitable for batch production line.
Precision casting includes investment casting, ceramic mold casting, metal mold casting, pressure casting, EPC casting. Because of the high accuracy of these molds. Resin sand usually has furan resin sand and alkali phenolic resin sand, and...
