ELECTRON BEAM GENERATION METHOD FOR ELECTRON BEAM TREATMENT OF METAL MATERIALS SURFACE Russian patent published in 2021 - IPC H05H15/00 H01J37/00 H01J37/06 H01J37/77 

FIELD: electricity.

SUBSTANCE: invention relates to a method for generating an electron beam for electron-beam surface treatment of metallic materials. An electron source with a plasma cathode with a grid stabilization of the emission plasma boundary and a plasma anode with an open plasma boundary is used, an electron beam current is generated with an amplitude (5-500 A), at an electron energy (5-30 keV), with a beam diameter (5-100 mm ), and the energy density of the beam (5-200 J / cm2), the power density of which varies in the range (2 × 103-106 W / cm2) during a pulse of micro- and submillisecond duration (10-1000 mcs) in the mode of its single pulses by amplitude and width modulation of the beam, suitable for controlling the rate of heating, melting and cooling of the surface layer of metallic materials.

EFFECT: possibility of controlled input of energy into the surface of metal, regardless of the weight of the workpiece, as well as high energy efficiency and productivity of the process of cleaning the surface of the workpiece, its heating and modification in a single pulse of submillisecond duration.

1 cl, 6 dwg, 1 tbl