Abstract: A fluid blow-out structure of a centrifugal casting device 1, for blowing out a fluid to inner surface of a rotating cylindrical mold 2, including: fluid application outer tube 5 inserted into the mold 2; movable mechanism 6 supporting a base end of the fluid application outer tube 5; outlet 8 through which the fluid is blown out, the outlet 8 provided at a leading end of the fluid application outer tube 5; fluid supply tube 9 inserted in the fluid application outer tube 5 and connected to the outlet 8; and guide mechanism 7 contacting an outer circumferential surface of the fluid application outer tube 5, and guides the fluid application outer tube 5 into and out of the mold 2. The fluid application outer tube 5 includes a resin hollow tube 10 and a metal tube 11 covering outer circumferential surface of the resin hollow tube 10.

Abstract: A fluid blow-out structure of a centrifugal casting device 1, for blowing out a fluid to inner surface of a rotating cylindrical mold 2, including: fluid application outer tube 5 inserted into the mold 2; movable mechanism 6 supporting a base end of the fluid application outer tube 5; outlet 8 through which the fluid is blown out, the outlet 8 provided at a leading end of the fluid application outer tube 5; fluid supply tube 9 inserted in the fluid application outer tube 5 and connected to the outlet 8; and guide mechanism 7 contacting an outer circumferential surface of the fluid application outer tube 5, and guides the fluid application outer tube 5 into and out of the mold 2. The fluid application outer tube 5 includes a resin hollow tube 10 and a metal tube 11 covering outer circumferential surface of the resin hollow tube 10.

Abstract: A metal mold for centrifugal casting, the exterior surface of which is provided with a coating in the form of an iron oxide film or a film containing calcium as the main ingredient. Such a coating is preferably formed so as to substantially cover the entire exterior surface. If the coating is an iron oxide film, it is preferable for the film to contain triiron tetraoxide. If the coating is a film containing calcium as the main ingredient, it is preferable for the thickness thereof to be at most 0.4 mm. Furthermore, among films containing calcium as the main ingredient, it is preferable for said main ingredient to be calcium carbonate. By configuring a mold for centrifugal casting in such a manner, the exterior surface of the metal mold can be uniformly cooled, and deformation of the mold can be suppressed.