Casting of iron mould-tectorial sand is in metal mold (called iron type) on the inner cavity after a thin layer of sand and the formation of a cast a casting process.By thin sand layer (4 to 8 mm), so the more expensive molding materials with high quality, is reasonable in terms of economy, the result is significantly reduced greatly improve casting quality and waste;Because of cast iron mould-tectorial sand good stiffness, which significantly improves the casting dimension accuracy and compactness.Casting process design and practical production of iron mould-tectorial sand mainly to solve:1. Type iron wall thickness and coating thickness and the cooperation, in order to meet the different wall thickness and the different requirements of different casting on solidification and cooling;2. Convenient and economic method of sand molding, to satisfy the different casting on surface quality and dimensional accuracy requirements;3. The process parameters.Such as pouring system, shoot sand system, the determination of exhaust system and so on;4. The realization of mass production.For example, production line and sand design finalize the design of main and auxiliary machinery;5. Process planning, such as casting, cooling, and out of the procedures as well as the adjustment of the casting components.