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STEALTH DIGI-TIG 320 AC/DC PULSE
Introduction
• 0
Press and hold the gun switch – electromagnetic gas valve is turned on.
The shielding gas starts to flow.
•
0~t1 Pre gas time: 0~2S.
•
t1~t2 Arc is ignited at t1 – output the setting value of start current.
•
t2
Release the gun switch – output current slopes up from the start current.
•
t2~t3 Output current rises to the setting value (Iw or Ib) – upslope time can be
adjusted.
•
t3~t4 Welding process – during this period the gun switch is depressed.
Note: Select the pulsed output – base current and welding current will be
output alternately; otherwise output the setting value of welding current.
•
t4
Press the torch switch again – the welding current will drop in accordance
with the selected down-slope time.
•
t4~t5 Crater current time.
•
t6
Loosen the gun switch – stop arc and keep argon flowing.
•
t6~t7 Post-Gas Time can be set by adjusting the knob on the front panel (0~10S).
•
t7
Electromagnetic valve is closed, argon ceases flowing and welding is finished.
19
4.5 Argon Arc Welding Operation
4.5.1 TIG welding (4T operation)
The start current and crater current can be pre-set. This function can
compensate the possible crater that appears at the beginning and end of
welding. Thus, 4T is suitable for the welding of medium thickness plates.
MAINTENANCE AND TROUBLESHOOTING
20
§4.5 Argon Arc Welding Operation
§4.5.1 TIG welding
(
4T operation
)
The start current and crater current can be pre-set. This function can compensate the
possible crater that appears at the beginning and end of the welding. Thus, 4T is suitable for the
welding of medium thickness plates.
Introduction
:
l
0
:
Press and hold the gun switch, Electromagnetic gas valve is turned on. The shielding
gas stars to flow;
l
0
~
t1
:
Pre-gas time (0~2S);
l
t1
~
t2
:
Arc is ignited at t1 and then output the setting value of start current;
l
t2
:
Loosen the gun switch, the output current slopes up from the start current;
l
t2
~
t3
:
The output current rises to the setting value (Iw or Ib), the upslope time can be
adjusted;
l
t3
~
t4
:
Welding process. During this period, the gun switch is loosen;
Note: Select the pulsed output, the base current and welding current will be outputted alternately;
otherwise, output the setting value of welding current;
l
t4
:
Press the torch switch again, the welding current will drop in accordance with the
selected down-slope time.
l
t4
~
t5
:
The output current slopes down to the crater current. The downslope time can be
adjusted;
l
t5
~
t6
:
The crater current time;
l
t6
:
Loosen the gun switch, stop arc and keep on argon flowing;