ANDELI TIG-250PL ACDC Manual del usuario - Página 9
Navegue en línea o descargue pdf Manual del usuario para Inversor ANDELI TIG-250PL ACDC. ANDELI TIG-250PL ACDC 20 páginas. Inverter ac/dc pulsed tig welder
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AC TIG
AC Pulse TIG
1.For DC TIG, DCEP is used normally (workpiece connected to positive polarity, while torch
connected to negative polarity). This connection has many characters, such as stable welding arc,
low tungsten pole loss, more welding current, narrow and deep weld;
2.For AC TIG (rectangle wave), arc is more stable than Sine AC TIG. At the same time, you can not
only obtain the max penetration and the min tungsten pole loss, but also obtain better clearance
effect.
3.DC Pulsed TIG has the following characters: 1) Pulse heating. Metal in Molten pool has short
time on high temperature status and freezes quickly, which can reduce the possibility to produce
hot crack of the materials with thermal sensitivity. 2) The workpiece gets little heat. Arc energy is
focused. Be suitable for thin sheet and super thin sheet welding. 3) Exactly control heat input and
the size of the molten pool. The depth of penetration is even. Be suitable for welding by one side
and forming by two sides and all position welding for pipe. 4) High frequency arc can make metal
for microlite fabric, eliminate blowhole and improve the mechanical performance of the joint. 5)
High frequency arc is suitable for high welding speed to improve the productivity.
TIG-250PL series welding machine is suitable for all positions welding for various plates made of
stainless steel, carbon steel, alloyed steel, titanium, aluminium, magnesium, cuprum, etc, which is also
applied to pipe installment, mould mend, petrochemical, architecture decoration, car repair, bicycle,
handicraft and common manufacture.
PWM——Pulse-Width Modulation;
IGBT——Insulation Gate Bipolar Transistor
TIG——Tungsten Insert Gas welding
2.2 Module Explanation
The module explanation of arc welding machine must accord with the correlative prescripts of
National Standard GB10249. It is explained as the following
SUMMARY
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