High current plasma arc welding electrode and method of making t

Details High current plasma arc welding electrode and method of making t High current plasma arc welding electrode and method of making t

1995-02-21

1997-04-08

Paschall, Mark H.

Electric heating

Metal heating

By arc

21912153, 219119, 21914531, 21914523, B23K 1002, B23K 3502

Patent

active

056184514

ABSTRACT:
The elongated welding electrode is for plasma arc welding. It has a welding flux material coated on an elongated metal core. Gaps are formed in the flux coating and located at even intervals along the entire length of the electrode. The ratio of the melting points of the flux coating material and the metal core is in the range of 0.9 to 1.05. The ratio of the weights of the flux coating material and the metal core is in the range of 1.1 to 2.5. The electrode may be used with a simple welding gun and a large welding current to produce the plasma effect for welding without having to use an additional supply of gas for shielding the molten weld metal and for cooling the slag.

REFERENCES:
patent: 1709474 (1929-04-01), Hawley, Jr.
patent: 3555239 (1971-01-01), Kerth
patent: 3620830 (1971-11-01), Kramer
patent: 4190760 (1980-02-01), Kano et al.
patent: 4958060 (1990-09-01), Mankins et al.

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