Tidal mold sand, clay sand, water glass, coated sand, resin sand",
Resin coated sand is generally phenolic resin, slightly toxic, generally used to say that sand coreThe binder of resin sand is furan resin, and the molding sand of resin sand is relatively large after pouring. At present, the quality of casting with resin sand is the best in sand casting
The binders are plain clays or bentonite. Because of the need to add water to the sand mixing process, it is called sand mold sandWater glass sand binder is sodium silicate, usually by blowing carbon dioxide hardening or hardening agent hardening
Sand, sand, water glass, resin coated sand and resin sand belong to sand casting in casting, but it is the difference between different bindersTidal mold sand, clay sand and wet molding sand are the same.
