FIELD: casting. SUBSTANCE: unit has a pressure chamber with a partition mounted over a metal conduit. A smelting device, for example, a tungsten electrode, is mounted opposite to the metal conduit over a cover. A collapsible mould is mounted in an evacuated cup under the partition and the metal conduit. The partition parts the chambers. When the partition is melted up to its lower surface this surface breaks under the action of the gas in the chamber and the melt fills the evacuated mould cavity at high flow rate. EFFECT: improved structure. 1 dwg
