Electric heating – Metal heating – By arc
Patent
1985-08-06
1987-08-18
Albritton, C. L.
Electric heating
Metal heating
By arc
219121EZ, 219121EA, B23K 1500
Patent
active
046879021
ABSTRACT:
Electron beam welding apparatus, suitable as a mobile welding apparatus, having a solid dielectric insulator for the high voltage electrical conductors and also having liquid coolants for cooling the conductors and the insulator which are heated by the cathode. The apparatus also includes a valve for sealing the cathode and the anode in an outer housing in one position of the valve and for allowing the passage therethrough of an electron beam in another position of the valve and for providing precision television optical viewing of the welded seam. The apparatus also includes high-voltage connecting apparatus including a plug having a resilient tapered insulating member and a socket in the solid dielectric insulator, and having the shape of a tapered opening for the plug for exerting laterally compressive forces on the plug as the plug is inserted into the socket to avoid trapping air in the socket. The electron beam gun includes a conductive cartridge having a housing for disposition around a conductive base member and having a bayonet lock protruding internally therefrom for locking in the recess of the base member. The cartridge allows changing of the cartridge in a few minutes or changing of the cathode filament in a few minutes.
REFERENCES:
patent: 3187216 (1965-06-01), Sciaky
patent: 3842236 (1974-10-01), Von Walter
patent: 4008112 (1978-01-01), Marhic
patent: 4084076 (1978-04-01), Istomin et al.
patent: 4574178 (1986-03-01), Spruck
Colegrove Russell K.
Lawrence Glen S.
Albritton C. L.
Leybold-Heraeus GmbH
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