High capacity electron beam cold hearth furnace

Details High capacity electron beam cold hearth furnace High capacity electron beam cold hearth furnace

H - Electricity

01

J

327/7

H01J 37/305 (2006.01)

Patent

CA 1322228

High Capacity Electron Beam Cold Hearth Furnace Abstract In the particular embodiment of an electron beam furnace arrangement described in the specification, an electron beam gun unit (20) is supported on rails (23) for motion between two hearth and casting units (11,12), each having a lid (24) to seal the unit when the electron beam gun unit (20) is not in place. Sealing covers (25, 28, 29) are also provided for the molds (14, 26, 27) associated with the casting units. A common pump, preheating and hearth cooling unit (13) communicates with each of the hearth and casting units (11, 12) so that, when one of the hearth and casting units is in use, the other unit can be cleaned and maintained and then outgassed and preheated in prepa- ration for transfer of the electron beam gun unit (20) from the other hearth and casting unit (Fig. 1).

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