Electron-beam generator, especially a two-electrode electron-beam generator

摘要

In order to improve the electron-beam parameters, the cathode (19) is arranged on the two-electrode electron-beam generator (27) in such a manner that it projects by a few tenths of a millimetre (55) toward the anode (21), with respect to the focusing electrode (20). This leads to a considerable improvement in the deep welding of large cross-sections and in the perforation of relatively large sheet-metal thicknesses. <IMAGE>