The Paton Welding Journal, 2000, №12

2000 №12 (12)

2000 №12 (14)

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The Paton Welding Journal, 2000, #12, 70-74 pages

Plasma arc torch with an oxide cathode

V.I. Lakomsky

E.O. Paton Electric Welding Institute of the NASU 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine.

Abstract
The application of a powder oxide cathode instead of a rod tungsten cathode in metallurgical plasmatrons (arctrons) is considered. This simplifies design significantly and increases the efficiency factor of the heating process. The arc discharge of the arctron is characterized by a well-formed plasma "flame" of the cylindrical shape and rising volt-ampere characteristic.
Keywords: electrical arc, arc plasmatrons, plasmatron nozzle, oxide cathode, arctron, design

References

1. Esibyan, E.M. (1971) Plasma arc equipment. Kyiv: Tekhnika.
2. Bykhovsky, D.G. (1972) Plasma cutting. Leningrad: Mashinostroyeniye.
3. Karp, L.N. (1977) Development and investigation of fuel-arc torches. In: Fuel plasma torches. Kyiv: Naukova Dumka.
4. Paton, B.E., Lakomsky, V.I., Kovalevsky, E.V. (1988) Electroarc heat source with cathodes of the new type. Avtomaticheskaya Svarka, 2, 43 - 46.
5. Lakomsky, V.I. (1997) Oxide cathodes of electric arc. Zaporozhje: Internal.
6. Volchenko, V.N., Yampolsky, V.M., Vinokurov, V.A. et al. (1982) Theory of welding processes. Moscow: Vysshaya Shkola.

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Suggested Citation

V.I. Lakomsky (2000) Plasma arc torch with an oxide cathode. The Paton Welding J., 12, no data.

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