Foundry Sand Types Gray Iron, Ductile Iron, Steel ...
It is commonly used in machine molding and hand molding. The sand made can be used to pour liquid metal without drying, which has the advantages of low production cost and short production cycle. Wet clay sand used in sand casting production accounts for about 60%. As the wet sand has a high moisture content, low strength and air permeability, the castings can easily have the porosity, coarse, sticky .
