Electron beam machine - with the transformer located in the high-vacuum space behind the beam generator

摘要

The electron beam machine has transformer parts (6,11) and (12,7) located in a region (17), i.e. behind the beam generator elements (2,3,4) within the high-vacuum space of the insulation housing (1,5) but still outside the notional cylindrical surface (18) between the opening (19) and the beam generator elements. Pref. the switching elements (13,14) associated with the transformer (6,8,11; 7,9,12) are located within the high-vacuum space outside the surface (18). Magnetic field screen (21) kept at a high-voltage potential is located between these switching elements and the beam generator elements (2,3). The screen extends into the surface (18) and has an opening (22) bounded by this surface. The primary coil (8; 9) is embedded in the insulating material of the lining (5) and is separated at least from the secondary coil (6; 7) by sections (25,26) made of an insulating material. At least one of them, that is, either (25) or (26) serves as a transformer holder. USE/ADVANTAGE - In welding, boring and surface treatment installations based on electron beam operations. Its construction is simpler than that of known electron beam machines. Furthermore, the beam generator is easily accessible.