What is the solidification mechanism of coated sand iron mold casting?

The solidification mechanism of coated sand iron mold casting is the casting process of coating a thin layer of molding sand in the inner cavity of a metal mold (called iron mold) to form a mold. Coated sand iron mold casting has the characteristics of sand mold casting. It has a rigid sand mold shell, so that the overall strength of the sand mold is high without deformation, the adaptability is wide, the casting is easy to demould, the positioning is reliable, the precision is high, the modeling is convenient and fast, and the casting sand mold can be formed in three minutes. The density of molding sand and the surface hardness of the mold are guaranteed by the equipment, which is consistent all the time, and a smooth casting is obtained without any coating. In the production of iron mold coated sand, the sand mold is cured by hot box method, which requires a certain temperature and time, which affects the production efficiency of iron mold coated sand and is not suitable for mass production. The molding machine of iron mold coated sand can be said to be a hot box core shooter, which is not suitable for producing large and complex parts.