Method permitting multiple uses of a copper wire employed as...

Details Method permitting multiple uses of a copper wire employed as... Method permitting multiple uses of a copper wire employed as...

B - Operations, Transporting

23

K

327/113

B23K 11/00 (2006.01) B23K 11/30 (2006.01)

Patent

CA 1244892

59. ABSTRACT The copper wire employed for electrical resistance longitudinal seam welding of tinned sheet metal with the help of wire electrodes must up until now have been taken back to the smelter as old metal after a single application. The additional operating costs associated with this were until now unavoidable for long seam resistance welding of tinned sheet metal since a multiple utilization of the copper wire for welding has proven to be impossible in spite of years of research. The problem of these additional operating costs can be solved in that new copper wires with a reduced diameter are directly drawn from the copper wires employed as wire electrodes for resistance longitudinal seam welding after their use in welding. These wires then, for example, can be use as signal conductors or as windings. The properties of these wires are totally in accord with copper wires that are directly drawn a drawn from new copper. By this process, the additional operation costs mentioned above can be substantially reduced and in many cases even totally avoided.

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