B - Operations – Transporting – 23 – K
Patent
B - Operations, Transporting
23
K
327/87
B23K 28/00 (2006.01) B23K 13/00 (2006.01)
Patent
CA 1133589
HIGH FREQUENCY CURRENT WELDING OF METAL STRIP TO A METAL PART ABSTRACT OF THE DISCLOSURE: Method and apparatus for welding a metal part, e.g. a tube or strip, to a thin, flexible metal strip using high frequency electric currents in which the part and strip are continuously advanced to a weld point where they are pressed together. In advance of the weld point, high fre- quency current is supplied to the part and the strip through contacts engaging them so that portions thereof are heated to welding temperature by the time they reach the weld point. From the point of engagement of the contact with the strip or strips to the weld point the strip material is maintained in a fixed path by a rigid member against which the strip is pressed by tensioning the strip with a pad frictionally engaging the strip. If desired, the current may be fed to the contact engaging the part through a proximity conductor to increase the heating of the part relative to the strip.
349167
Smart & Biggar
Thermatool Corp.
LandOfFree
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