High - performance precision casting should create conditions for the adoption of technologically advanced modeling and core - making methods.The old jarring or jarring molding machine production line productivity is not high enough, the labor intensity of workers, noise, not suitable for mass production requirements, should be gradually modified.For small precision casting parts, can be used horizontal parting or vertical parting box high-pressure molding machine production line, solid molding production efficiency is high, the floor space is also small;For the middle parts can choose a variety of box high-pressure molding machine production line, air impact molding line, in order to adapt to the requirements of fast, high precision molding production line, the core method can choose: cold core box, hot core box, shell core and other efficient core manufacturing methods.