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RESISTANCE HEATING:
heating is caused, thanks to the joule effect, by the passing
in a conductive material of a high intensity current.
Using analogous transformers to those of the welding electrical
worker for resistance it is possible to obtain heatings useful in order to
realize heating operations as bending, forging, hardening, etc.
BRAZING ELECTRICAL
WORKER:
with special
pliers endowed of electrodes, generally of coal, connected to the
secondary of a transformer in a position to distribute strong
intensities of lowest tension currents, of the 10V order, it is
possible to transmit the heat created in the electrodes, because of
the elevated current that covers them, to the piece on which one agrees to
carry out the brazing thanks to a temperature higher than fusion temperature of
the contribution material used.
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