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WELD.COM
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OPERATION
15
§4.3
Welding Operation
§4.3.1
Argon Arc Welding Operation
TIG long welding 4T
Introduction
0
Press and hold the gun switch, Electromagnetic gas valve is turned on. The
shielding gas starts to flow;
0 t1 Pre flow time, adjustment range of pre flow time :0~1.0S;
t1 Striking success, adjustment range of start current: 5~160A 200A
t2
Loosen the gun switch, the output current slopes up from start current; if the
output pulse function is turned on, the output current is pulsed;
t2 t3 Output current slopes up to the setting current value; adjustment range of up
slope time 0~5.0S ;
t3 t4 Welding process. During this period, the gun switch is loosen;
Note: If the output pulse function is turned on, the output current is pulsed. If the output
pulse function is turned off, the output current is DC current;
t4 Repress down the gun switch, the output current slopes down to crater current; if
the output pulse function is turned on, the slope down current is pulsed;
t4 t5 Down slope time, adjustment rang of down slope time: 0~5.0S;
t5 t6 Crater current holds time; adjustment range of crater current: 5~160A (200A);
t6 Loosen the gun switch, stop arc, and keep on argon flowing;
t6 t7 Post flow time, adjustment range of post flow time: 3.0 10.0S;
t7 Electromagnetic valve is closed and stop argon flowing. Welding is finished.
