Stel TIG mP 273H DC, Инструкция по эксплуатации

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MAIN FUNCTIONS
TIG 2T
TIG 4T
TIG DUAL-TIG™
The function Dual-Tig™ allows to use 2 current
level switching from the main and base current by
simply press quickly the trigger torch.
TIG WELDING INFORMATION
ELECTRODE TYPE
STEL recommends the use of Ceriated Tungsten
electrodes (grey) for optimum arc ignition and
welding performance during either AC or DC
welding. When changing from AC to DC welding a
change of the electrode is recommended.
A suitable electrode point is made as shown in this
example.
Angle a varies as the welding current varies; the
following table recommends the value:
FILLER MATERIAL
Basic rules:
1 ) Always use the same filler rod specification
with the same mechanical and chemical properties
as the material to be welded;
2) it is recommended not to use parts of the base
material, as they could contain impurities due to
the work process;
3) if the material used has a different chemical
composition, it is advisable to assess the final
characteristics of the joint, both mechanical and
anti-corrosive.
Angle (°)
Welding current A
30
60 – 90
90 –120
5 - 30
30 - 120
120 - 160
On Off
Arc on
Arc off
t
t On
t
slope
1/4 t
Off
preGas
On
Arc on
Arc off
Post Gas time
t
t Off
t
slope
1/4 t
On Off
Arc on
t
t On/Off
t slope
Arc off
Post Gas time
On Off
1/4 t
A
Pre Gas
A
Torch trigger
Pre Gas
A
Torch trigger
Post Gas time