Method of producing electrode units for plasmatrons

Details Method of producing electrode units for plasmatrons Method of producing electrode units for plasmatrons

1973-03-30

1977-01-04

Esposito, Michael F.

Coating processes

Electrical product produced

Integrated circuit, printed circuit, or circuit board

427 47, 427123, 427295, 427431, 427432, 427436, 219 76, 219130, 204290R, B23K 904, B23K 900

Patent

active

040014614

ABSTRACT:
A method of producing electrode units for plasmatrons, according to which a direct-current arc is struck between a tungsten electrode and a melt, so that the electrode acts as a cathode, prior to dipping the electrode into the molten metal, intended e.g. for an electrode holder. Then the electrode is dipped into the melt, and the arc is extinguished.

REFERENCES:
patent: 2755369 (1956-07-01), Shrubsall
patent: 3020323 (1962-02-01), Redfern
patent: 3518109 (1970-06-01), Halley
patent: 3582604 (1971-06-01), Bykhovsky
patent: 3659075 (1972-04-01), Pellkofer
patent: 3920948 (1975-11-01), Schokkenbroek
patent: 3922516 (1975-11-01), Valtchev

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