Electrode roll for resistance welding

Details Electrode roll for resistance welding Electrode roll for resistance welding

1981-11-16

1984-02-21

Envall, Jr., Roy N.

Electric heating

Metal heating

For bonding with pressure

219119, 339 5L, B23K 1106, H01R 3930

Patent

active

044332297

ABSTRACT:
An electrode roll for resistance welding comprising a fixed portion which has a disc portion at the longitudinal center part of a shaft where the disc portion and the shaft are at right angles to each other; a rotary portion which surrounds the fixed portion and has inner surfaces forming two side gaps facing the two side surfaces of the disc portion and a peripheral gap facing the peripheral surface of the disc portion, respectively; and a conductive liquid metal received in each of the gaps, where the peripheral gap is so narrow that the above conductive liquid metal may be pulled up along the gap to fill the same when the above rotary portion rotates, and the side gaps are substantially wider than the peripheral gap.

REFERENCES:
patent: 4188523 (1980-02-01), Kawai et al.

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