2, used in centrifugal casting of precision casting mould has two categories, is the metal and nonmetal.Moudle non-metallic can sand, shell, shell mold and so on.Because the metal mold in mass and batch production has a series of advantages, so widely used metal type in centrifugal casting. 3 metal mold centrifugal casting, precision casting, often need to spray on the surface of the work that metal mold coating.For precision casting of centrifugal casting metal mold coating requirements and to the same common metal mold casting.In order to prevent type adhesive and cast iron castings and metal parts produced white, in the coating layer on the centrifugal type metal sometimes thick.Precision casting of centrifugal casting coating is mostly water as carrier.State is also sometimes used in coatings, such as graphite powder, resulting in castings can be extracted more easily from the type.