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TIG LIFT
The DC TIG welding requires a protective gas (argon).
Follow the steps as below:
1.
Connect the earth clamp to the positive pole (+).
2.
Connect a torch "valve" to the negative (-).
3.
Connect the pipe of the gas torch on the gas cylinder
4.
Select TIG mode
using the selector button
.
5.
Select the desired current (display
) using the keys
.
Advice: Set 30A as a default setting and adjust according to the part to weld.
The current can be set from 10 to 150A.
6.
Set the gas flow on the gas regulator of the cylinder, and then open the valve of the torch
7.
To start :
a- Touch the electrode on the
part to be welded
b- Raise the electrode 2 to 5
mm of the part to be welded
8. At the end of the weld, raise the torch with a quick movement, shut off the gas only when the electrode has
cooled.
Recommended combinations / Electrode grinding
Current (A)
Ø Electrode (mm)
= Ø wire (filler metal)
Ø Nozzle (mm)
Flow rate (Argon L/mn)
0,5-5
10-130
1,6
9,8
6-7
4-7
130-190
2,4
11
7-8
To optimize the working, you have to use an electrode grinded as below:
d
l
THERMAL PROTECTION
&
DUTY CYCLE
•
Thermal protection: when the thermal protection indicator
turns on it will require a cooling time of
between 1 and 5 min according to the ambient temperature.
•
Leave the machine connected to the power supply after welding in order to let it cool down
•
The welding unit has an output characteristic of "constant current" type. The duty cycles follow the norm
EN60974-1 (at 40°C on a 10min cycle) are indicated in the table here below :
GYSMI 151
X% @
I max
X% @
I max
35%
145A
45%
150A
60%
130A
60%
135A
100%
110A
100%
120A
Note: the overheating tests have been made at room temperature and the duty cycles at 40°C have been
determined by simulation.
L = 2.5 x d
L
