Fenix 200 Bedienungsanweisung Seite 40

Picture 3 Running of welding process in TIG
Table 4
Strenght of the welded
material (mm)
1,5 - 3
3 - 5
5 - 12
More than 12
Table 5
Electrode (mm)
1,6
2
2,5
3,25
4
5
6
The appropriate size of the welding current for
different electrode diameters is shown in Table 5,
and for different types of welding are values:

High for horizontally welding

Medium welding for heads above

Low for vertical down welding and joining small
pre-heated pieces
Approximate indication of the average current used
in welding electrodes for ordinary steel is given by
the following formula:
I = 50 x (e – 1)
WHERE IS:
I = intensity of welding current
e = diameter of electrodes
Electrode diameter
(mm)
2
2,5
3,25
4
Welding current (A)
30-60
40-75
60-110
95-140
140-190
190-240
220-330
EXAMPLE:
For electrodes with diameters of 4 mm
I = 50 x (4 – 1) = 50 x 3 = 150A
Holding of electrodes while welding:
Picture 4
45 +70
Preparation of basic material:
Table 6 shows values for preparation of material.
Sizes are determined according to picture 5.
Picture 5
Table 6
s (mm) a (mm)
0-3
3-6
3-12
WELDING METHOD TIG
Welding inverters allow you to weld by TIG with
contact ignition. TIG method is very effective
especially for welding stainless steels. Set the
machine to the TIG method.
Connection of welding torch and cable:
Connect the torch to negative terminal and the
ground cable on the plus pole - straight polarity.
-40 -
o o
d a
d (mm)
0 0
0 s/2(max)
0-1,5 0-2
o
45
s
α ( o )
0
0
60