Apparatus for making seam welded tubing

Details Apparatus for making seam welded tubing Apparatus for making seam welded tubing

1976-07-12

1977-12-13

Goldberg, E. A.

Electric heating

Metal heating

Of cylinders

219 59, 219 73R, 228 177, B23K 1108

Patent

active

040630587

ABSTRACT:
Apparatus for making seam welded tubing of the type comprising a first butt welding machine for joining together by submerged arc welding the adjacent ends of successive lengths of strip to form a continuous strip, a strip storing device for storing the continuous strip and a tube forming and welding machine is provided with a series of roll stands with the roll axes of successive stands offset from each other so that as the strip passes through the stands, it is turned over laterally. A second butt welding machine is then provided after the roll stands and before the strip is fed into the tube forming and welding machine so that the successive lengths of strip are first butt welded together along the joint on one face of the strip and then second welds are made on the other face of the strip so that no further welding is necessary after the tube has been formed and seam welded in the tube forming and welding machine.

REFERENCES:
patent: 1793282 (1931-02-01), Freeze
patent: 2923807 (1960-02-01), Hormann

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