Lost wax precision casting lost wax casting process is developed by ancient casting process.Late neolithic from more than 5000 years ago, our country ancient craftsmen is widely used in the manufacture of bronze ware lost wax casting process.Craftsmen at that time according to the characteristics of the wax of plasticity and heat of the volatile, will first wax need carved into the shape of the wax models, then in the wax models outside package of clay with a small hole and set aside to dry after roasting, gasification volatilization, the wax mould, clay ceramic shell has been at the same time, left a wax mould cavity die casing wall.At this time again will melt metal along the holes into the shell, break the shell after cooling, that is, to obtain the required metal casting.The basic principle of modern lost wax casting technology is not, only more sophisticated.This is mainly embodied in the wax models of type a precise required more strictly.Wax models in the modern technology to obtain not only the direct carving of wax, can also through the metal master mould (version) of the silicone mold cavity die, again by silica gel wax models resulting from the cavity die wax injection.Casting material is no longer clay, and generation in casting gypsum.This product more than ancient casting fine.