OPERATION
compatible with the base material being welded and is covered with a flux that gives off
gaseous vapours that serve as a shielding gas and providing a layer of slag, both of which
protect the weld area from atmospheric contamination. The electrode core itself acts as filler
material the residue from the flux that forms slag covering over the weld metal must be
chipped away after welding.
•The arc is initiated by momentarily touching the
electrode to the base metal.
• The heat of the arc melts the surface of the base
metal to form a molten pool at the end of the electrode.
• The melted electrode metal is transferred across the
arc into the molten pool and becomes the deposited
weld metal.
• The deposit is covered and protected by a slag which comes from the electrode coating.
• The arc and the immediate area are enveloped by an atmosphere of protective gas
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