B - Operations – Transporting – 23 – K
Patent
B - Operations, Transporting
23
K
327/102
B23K 11/24 (2006.01) B23K 11/25 (2006.01) B23K 11/26 (2006.01)
Patent
CA 1256513
ABSTRACT OF THE DISCLOSURE: A method and arrangement are described fox regulat- ing the welding operation in a resistance welding machine by sensing the welding current and controlling the welding time. A first integrator determines the desired total energy to be supplied to a welding spot from a desired welding current preset by means of a function generator and a preset welding time. An integrating device connected to a welding-current sensor determines the actual energy supplied. A comparator compares the desired total energy with the actual energy in order to switch off the welding current by means of a start/ stop module in the event of equality between desired value and actual value. In the manner, fluctuations in the supply voltage are compensated by lengthening or shortening the time during which energy is supplied to the welding spot in order to ensure the quality of the welding from one welding spot to another.
517819
Elpatronic Ag
Robic Robic & Associes/associates
LandOfFree
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