Non-fusible electrode, in particular for tungsten inert gas weld

Details Non-fusible electrode, in particular for tungsten inert gas weld Non-fusible electrode, in particular for tungsten inert gas weld

1974-06-17

1976-08-24

Truhe, J. V.

Electric heating

Metal heating

Weld rod structure

291823, 219 75, 219149, 313346R, B23K 3504

Patent

active

039768538

ABSTRACT:
An electrode, particularly for use in tungsten inert gas welding, and a method for the production thereof wherein the electrode consists of a thoriated tungsten electrode rod having a bore in the working end thereof with an internal surface roughness formed by electro-errosion, the bore being filled with a mass of an electron emission increasing metal-nonmetal compound which is fuse-sintered in place to form a centrally disposed plug in the working end of the electrode.

REFERENCES:
patent: 3086103 (1963-04-01), Hackman et al.
patent: 3141953 (1964-07-01), Browning
patent: 3378622 (1968-04-01), Marin
patent: 3421972 (1969-01-01), Cromwell et al.
patent: 3534455 (1970-10-01), Bondley
patent: 3546422 (1970-12-01), Bykhovsky et al.
patent: 3597649 (1971-08-01), Bykhovsky et al.
patent: 3639161 (1972-02-01), Trattner et al.
patent: 3676639 (1972-07-01), Esiban et al.

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