Patent ID: 6101212
Filing Date: 2000-08-08
Classification: C22B,F27B,F27D,Y02P

Abstract:
A sealed evacuatable crucible for inductive melting or superheating of electrically conductive materials, comprising a plurality of palisades which are arranged vertically and parallel to one another and distributed on an arc of a circle and distanced from one another, and for enclosing a melt to form the crucible wall, having a disk-shaped crucible base part which carries the said palisades wherein the palisades are provided at least in part with voids through which a cooling medium flows, and having an induction coil which is wound around the palisades from outside in direct manner distanced therefrom, and through which there flows an alternating current and which is movable in a vertical direction relative to the crucible and having in the crucible base part a discharge opening which is closable by means of a stopper rod, and having, provided below the crucible base part and connected in pressure-proof manner therewith, an evacuatable chamber which is formed of an upper chamber part and a lower chamber part for receiving a vessel for collecting the molten charge, which is placed below the discharge opening, and having an arm for holding and guiding the stopper rod, which is positioned movably on the upper chamber part.