Also this paper presents the methods of machining and aligning the grid for the cathode-grid assembly.

In thermal analysis, a professional mesh generation software ICEM-CFD is used to generate full-hexahedral grid and realize the grid assembly which is then imported to CFX to carry out the solution.

Brazing quality and product reliability are both increased as using high frequency pulse microplasma arc heating process for assembly brazing of cathode and photoetching grid of electron tube.