Resistance seam welding machine

Details Resistance seam welding machine Resistance seam welding machine

1988-01-06

1989-02-07

Broome, H.

Electric heating

Metal heating

Of cylinders

219 82, 219116, B23K 116

Patent

active

048033251

ABSTRACT:
A resistance seam welding machine is described, particularly for the longitudinal seam welding of can bodies, wherein, in the secondary loop (16), feed and return lines are constructed partially as a double line (18, 28) and in all the remaining portion (18a, 18b, 18c, 20, 24, 26) in the form of a substantially coaxial line. The voltage loss occurring in the secondary loop (16) between welding transformer (14) and welding position (8, 10) and the heat due to energy losses in the machine parts adjacent to the secondary loop are considerably reduced as a result of this construction of the feed return lines.

REFERENCES:
patent: 1322479 (1919-11-01), Buchenberg
patent: 4160892 (1979-07-01), Opprecht
patent: 4641008 (1987-02-01), Portmann

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