Compact electron beam welding gun providing long-term stability - having cathode assembly enclosed in housing filled with cooled liquid dielectric

The welding gun includes an anode unit to which is attached a cathode unit having a sealed housing which is filled with a liquid dielectric and provided with an internal cooler. Within the housing is a cathode assembly comprising a high voltage tubular insulator upon which are mounted sealed curent...

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Bibliographische Detailangaben
1. Verfasser:	E. I. ISTOMIN, L. P. STREKAL, A. F. IVANENKO, A. A. VASILIEV, L. I. ZHIVAGA, O. K. NAZARENKO, I. A. PORAZHINSKY ET J. N. ZHDANOV
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	BASIC ELECTRIC ELEMENTS CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS ELECTRICITY MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS SOLDERING OR UNSOLDERING TRANSPORTING WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	The welding gun includes an anode unit to which is attached a cathode unit having a sealed housing which is filled with a liquid dielectric and provided with an internal cooler. Within the housing is a cathode assembly comprising a high voltage tubular insulator upon which are mounted sealed curent leads, at least part of the external surface of the insulator forming part of the internal surface of the liquid-filled cavity. Pref. the cooler is either a cylindrical tubular coil surrounding the insulator or a flat tubular coil above the latter. The construction provides a strong compact unit having good beam parameter stability over long service with good high reliability. There is complete absence of any means of adjustment. L'invention concerne le soudage. Le canon à électrons faisant l'objet de l'invention est du type comportant un bloc anodique 1 assemblé à un bloc cathodique 2 comprenant un corps 8 dans lequel est monté un ensemble cathodique 11 constitué par un isolateur tubulaire à haute tension 12 sur lequel sont placées les amenées de courant étanches de l'ensemble cathodique, et est caractérisé en ce que, dans l'enceinte dudit corps, réalisé étanche, rempli d'un liquide diélectrique 15 et refroidi par un réfrigérant, au moins une partie de la surface extérieure de l'isolateur tubulaire à haute tension 12 constitue une partie de la surface de l'enceinte dudit corps étanche. L'invention assure notamment une haute rigidité diélectrique de l'ensemble cathodique.