Electron-beam processing DIELECTRICS

Currently, the compound of the products of difficult metals , dielectrics and metal assembly with a dielectric Kami used diffusion welding , which is done by heating ( without melting the material), and compression of connected de - hoists in vacuo , resulting in diffusion of atoms Part rials wetted parts . For de - ceramic compound hoists used method of electron beam welding , designed to MEI . A feature of this method is the presence in the welding circuit dielectric, thereby accumulating on the ceramic surface electric charge and defocusing of the beam is observed . for welding heating is needed ceramic to a temperature at which ceramics becomes conductive . An alternative way of removing the accumulated charge is the irradiation of a dielectric in the foreline pressures . The purpose of this study was to investigate changes in potentials la isolated target irradiated by electron beam in foreline pressures . The task of the work also included a demon - stration possible electron- beam processing of dielectric targets.