Vacuum furnace for heat treatment of metallic workpieces
AssigneeDegussa AG
InventorsPaul Heilmann, Fritz Kalbfleisch, Friedrich Preisser, Rolf Schuster
Life of this patent
Estimating the term…
Abstract
A vacuum furnace for heat treatment of metallic workpieces wherein the heat conductors are formed as conduits fitted with bore holes and connected by electrical insulators to coolant gas distributor.
Claims5
A vacuum furnace for the heat treatment of metallic workpieces comprising a cylindrical pressure shell in which is disposed a charge chamber surrounded by a plurality of axially aligned heating conductors and provided with thermal insulating means, and a gas-coolant device, with which a coolant gas can be passed through nozzles through the charge chamber and through a heat exchanger, wherein the heating conductors (6) are formed as conduits, are provided with a plurality of bore holes (7) communicating to the charge chamber and are connected by electrical insulators (8) to a coolant-gas distributor (9).
Dependencies are inferred from the claim text.