Title :
Modelling of the microdrops distribution generated by a single cathode spot of the metal vapor arc
Author_Institution :
The E.O. Paton Welding Inst., Kiev, Ukraine
Abstract :
The paper presents the simple model for evaluation of the microdrops distribution generated by a single nonstationary cathode spot of the vacuum arc. Computations carried out on the basis of ID model ("a-cavity on a plane" geometry) with description in a self-consistent manner of the movement of the spot surface and melting border within the cathode bulk. The distribution shape shows no dependence on current of single spot and the specific erosion rate is calculated.
Keywords :
cathodes; drops; metals; vacuum arcs; 1D model; cathode bulk; cavity on a plane geometry; distribution shape; erosion rate; melting border; metal vapor arc; microdrops distribution modelling; single cathode spot; spot surface movement; vacuum arc; Boundary conditions; Cathodes; Computational geometry; Conductivity; Equations; Plasma temperature; Solid modeling; Surface discharges; Surface treatment; Welding;
Conference_Titel :
Discharges and Electrical Insulation in Vacuum, 2002. 20th International Symposium on
Print_ISBN :
0-7803-7394-4
DOI :
10.1109/ISDEIV.2002.1027393
