Shell molding casting process is also called pre-coated resin sand casting, hot shell molding castings or core casting process.
The main molding material is the pre-coated phenolic resin sand, which is more expensive than green sand and furan resin sand. Moreover, this sand can not be recycle used.
Shell molding casting is a kind of high-quality selected natural sand as the sand base, resin coating system with special performance and the most ideal process technology.
According to the technical requirements of different users, it strives to perform at room temperature, high temperature performance, collapsibility, and flowability. The most perfect combination of performance, casting surface roughness, etc., widely used in automotive engines, diesel engines, hydraulic parts and other industries.
Features of coated sand casting products:
1. Fast curing;
2. Anti-shelling;
3. Anti-deformation;
4. Anti-sticking sand;
5. Easy to collapse.
The shell molding iron casting parts are with higher costs than sand casting. However, the shell molding casting parts have many advantages such as tighter dimensional tolerance, good surface quality and less casting defects. |
