Power sources
When welding with coated electrodes, the required current is set at the power source.
The welding current must be kept within certain limits even though the arc length may
vary. The short-circuit current should not be more than about 60 %higher than the
current setting, in order to avoid spatter from the short-circuiting of the arc caused by the
droplets of molten metal in it. On the other hand, too low a rise in current can result in
the electrode 'freezing' to the work. These requirements mean that the power source
should have a drooping load characteristic.
Supplied By RIHUI Ceramic Welding Backing
Date: 2023-04-10 hits: 616 Return
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