Method of electric welding tinfree cans

Details Method of electric welding tinfree cans Method of electric welding tinfree cans

1980-05-19

1982-06-08

Goldberg, Elliot A.

Electric heating

Metal heating

Of cylinders

219 83, 219118, B23K 1106

Patent

active

043341381

ABSTRACT:
Disclosed are a method of and apparatus for making a welded metallic can body by effecting a mash resistance welding on a lapped side portion of a can body preform by means of a combination of a cooled elongated electrode and a cooled rotary electrode and, as required, with wire electrodes interposed between the lapped side portion and these electrodes. Also, disclosed are a tinfree steel welded can body and its making method wherein it is formed by a mash resistance welding on a lapped side portion of a can body preform made from tinfree steel, without requiring the removal of surface chromium film from the welded portion and its vicinity.

REFERENCES:
patent: 1252146 (1918-01-01), Murray
patent: 1300603 (1919-04-01), Gravezl
patent: 2204549 (1940-06-01), Murch
patent: 2254657 (1941-09-01), Kennon
patent: 2280111 (1942-04-01), Widezl
patent: 2322101 (1945-06-01), Winlock
patent: 3610862 (1971-10-01), Erlandson
patent: 3909581 (1975-09-01), Stone
patent: 4160892 (1979-07-01), Opprecht

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