Symbols And Definitions - Expondo S-WIGMA 225PMH Manual De Instrucciones

FANS - very efficient fans ensure the optimal heat release during the
welder operation.

Symbols and definitions:

0.
On
Power key / ON/OFF switch
Off
1.
TIG-WIG/ MMA-switch
In opposition to the metals welding in MIG/MAG inert gas, during wel-
ding with WIG method, the electric arc appears between the infusible
wolframic electrode and the welded material. For the protection of the
wolframic electrode and the fusion weld, the neutral gases as argon
or helium or non-oxidizable gas mixtures are used. Welding with WIG
method may be used for all welded metals. Selection of the type of cur-
rent, polarization and inert gas depends on the welded metal type. This
device uses the welding handle (burner) – WIG, which is equipped with
the wolframic electrode, argon curtain gas release nozzle and the flu-
xing agent, depending on the welded material. Our welding technology
specialists recommend red wolframic electrodes for steel and precious
steel, green ones for aluminum, black ones for steel and cast iron, gold
and grey ones for universal applications. Depending on the metal plate
thickness, the following wolframic electrodes are recommended:
thin metal plate 0.5-1 mm
metal plate, thickness of 1-6mm
thick metal plate - 6 mm
= electrode 1.6 mm = electrode 2.4 mm = electrode 3.2 mm
In case of gas nozzles we recommend the size of 7 in within the area of
universal applications and size of 5 within the area of precise welding.
40
EN
Rev. 07.06.2022
MMA = electric arc welding (E-Hand/MMA) is one of the earliest
methods of metal objects welding; it is also in use nowadays. Welding
energy is generated by the electric arc between the consumable elect-
rode and welded element. zum Schweißen genutzt.
2.
AC/DC - while using inverter, it is possible to weld with direct cur-
rent (DC) or alternate current (AC) at the value of 200 A at 60% of
make-time. Thanks to this, the machine may weld almost every metal.
The alternate current is used for welding light metals (as aluminum or
titanium). For welding most of other metals (as constructional steel
and free-machining steel) we use direct current.
3.
Two-cycles MODE - welding process is being launched by pressing
the burner's switch-key and afte0072 its release, the function DOWN
SLOPE is initiated. If in DOWN SLOPE or POST TIME phase, the
burner's button is pressed again, the welding process is again started.
Four-cycles MODE = welding process is being launched by pressing
the burner's button and its again press results in DOWN SLOPE phase
start.
4.
Pulsation function switch-key - Additional pulsation function makes it
possible to prove more energy without the necessity to significantly
increase the temperature in the welded element.
5.
ARCFORCE = Electrode welding with alkaline electrodes leads to a
coarse-dropped material transfer. To improve the material transfer it is
recommended to increase the current when the arc shortens.
Rev. 07.06.2022
EN
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