Abstract: An apparatus for cleaning faced metal moulds of used facing comprises a frame mounting a barrel rotatable about the horizontal axis thereof. The barrel is formed with openings through which extend bars carrying on their opposite ends traverses with tiltable plates fitted with working tools for chipping off the facing and with nozzles connected to a system for supplying a working agent intended for the removal of used facing. The system for supplying the working agent comprises a fixed valve connected to a working agent source and periodically cooperating, as the traverses carrying the tiltable plates are advanced, with a corresponding receiving branch pipe arranged on the corresponding traverse formed with an interior duct in communication with said branch pipe, directing the working agent toward a header for distributing said working agent among the nozzles.

Abstract: An automatic line comprises, arranged in series in accordance with the casting flowsheet and interconnected by conveyer means: a unit for applying a coating to the working face of the metal mould parts; a unit for assembling metal moulds from the coated parts thereof; a unit for pouring molten metal into the assembled mould; a unit for solidifying the casting inside the mould; a unit for disassembling the mould and removing the casting therefrom; a unit for cleaning the mould parts off the used coating; a unit for stabilizing the temperature of the cleaned mould parts prior to a re-coating cycle.