MAGNUM WELDERS TIG200L AC/DC PRO, Руководство по эксплуатации

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TIG200L PRO AC/DC
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MMA WELDING
Arc welding is also called the MMA (Manual Arc Welding) method and is the oldest and most versatile
arc welding method.
The MMA method uses a coated electrode, consisting of a metal core covered with a lagging. An
electric arc is created between the end of the electrode and the material being welded. Arc ignition is
created by touching the electrode with the end of the work piece. The welder feeds the electrode as it
melts into the work piece so as to maintain a constant arc length and at the same time moves its melting
end along the welding line. The melting coating of the electrode gives off protective gases that protect
the liquid metal from the influence of the surrounding atmosphere, and then solidifies and forms a slag
on the surface of the lake, which protects the coagulating weld from cooling too quickly and harmful
environmental influences.
Selection of welding mode
Choose MMA welding mode.
Hot Current
a function that makes welding easier. When the
arc strikes, the welding current is temporarily
increased to heat up the material and electrode at
the point of contact, and to properly shape the
penetration and weld face at the initial stage of
welding.
Force Current
Stabilizes the arc regardless of fluctuations in its
length, reduces the amount of spatter. And avoid
electrode from stick to the workpiece.