Casting machine refers to the production of casting film with special equipment. Using high precision electronic ceramics stretch film machine using aluminum oxide as the main raw material of ceramic stretch first crush the good powder and bonding agent, plasticizer, dispersing agent, solvent mixtures has certain viscosity of slurry, slurry from hopper, pressure by scraper with a certain thickness of coating on the special baseband, after drying, curing film from stripping become a green belt, Then according to the size and shape of the finished product need for punching, laminating and other processing of green belt, made to be sintered blank finished products. It has the advantages of low cost, high quality, non-toxic and simple production process.