STEALTH DIGI-TIG 180 DC PULSE PFC MV
MAINTENANCE AND TROUBLESHOOTING
21
Welding current
range/A
DC positive connection
Gas nozzle diameter/mm
Gas flow rate/L
·
min
-1
10
~
100
4
~
9.5
4
~
5
101
~
150
4
~
9.5
4
~
7
151
~
200
6
~
13
6
~
8
201
~
300
8
~
13
8
~
9
tungsten electrode
diameter /mm
sharpened of the
electrode diameter/mm
angle of cone
(°)
background current/A
1.0
0.125
12
2
~
15
1.0
0.25
20
5
~
30
1.6
0.5
25
8
~
50
1.6
0.8
30
10
~
70
2.4
0.8
35
12
~
90
2.4
1.1
45
15
~
150
3.2
1.1
60
20
~
200
TIG of stainless steel (single run welding)
Workpiece
thickness
/mm
Joint form
tungsten
electrode
diameter/mm
welding wire
diameter/mm
Argon gas
flow rate/
L
·
min
-1
welding
current
(DCEP)
Welding
speed/
cm
·
min
-1
0.8
Butt joint
1.0
1.6
5
20
~
50
66
1.0
Butt joint
1.6
1.6
5
50
~
80
56
1.5
Butt joint
1.6
1.6
7
65
~
105
30
1.5
Corner
joint
1.6
1.6
7
75
~
125
25
2.4
Butt joint
1.6
2.4
7
85
~
125
30
2.4
Corner
joint
1.6
2.4
7
95
~
135
25
3.2
Butt joint
1.6
2.4
7
100
~
135
30
3.2
Corner
joint
1.6
2.4
7
115
~
145
25
4.8
Butt joint
2.4
3.2
8
150
~
225
25
4.8
Corner
joint
3.2
3.2
9
175
~
250
20
Notice: the above parameters originate from
《
Welding Dictionary
》
P150, Volume 1 of Edition 2.
MAINTENANCE AND TROUBLESHOOTING
22
§4.5 Operation Environment
●
Height above sea level is below 1000m.
●
Operation temperature range:-10
0
C
~
+40
0
C.
●
Relative humidity is below 90 % (20
0
C).
●
Preferably site the machine some angles above the floor level, the maximum angle does not exceed
15
0
.
●
Protect the machine against heavy rain or in hot circumstance against direct sunshine.
●
The content of dust, acid, corrosive gas in the surrounding air or substance can not exceed normal
standard.
●
Take care that there is sufficient ventilation during welding. There is at least 30cm free distance
between the machine and wall.
§4.6 Operation Notices
●
Read §1 carefully before attempting to use this equipment.
●
Connect the ground wire with the machine directly, and refer to §3.5.
Parameters of piping back sealing welding for mild steel
(
DCEP
)
Piping
diameter
Φ
/mm
Tungsten
electrode
diameter/mm
Gas nozzle
diameter/mm
Welding
wire
diameter/mm
Welding
current/A
Arc
voltage/V
Argon
flow rate
/
L
·
min
-1
Welding
rate
/
cm
·
min
-1
38
2.0
8
2
75
~
90
11
~
13
6
~
8
4
~
5
42
2.0
8
2
75
~
95
11
~
13
6
~
8
4
~
5
60
2.0
8
2
75
~
100
11
~
13
7
~
9
4
~
5
76
2.5
8
~
10
2.5
80
~
105
14
~
16
8
~
10
4
~
5
108
2.5
8
~
10
2.5
90
~
110
14
~
16
9
~
11
5
~
6
133
2.5
8
~
10
2.5
90
~
115
14
~
16
10
~
12
5
~
6
159
2.5
8
~
10
2.5
95
~
120
14
~
16
11
~
13
5
~
6
219
2.5
8
~
10
2.5
100
~
120
14
~
16
12
~
14
5
~
6
273
2.5
8
~
10
2.5
110
~
125
14
~
16
12
~
14
5
~
6
325
2.5
8
~
10
2.5
120
~
140
14
~
16
12
~
14
5
~
6
Notice: the above parameters originate from
《
Welding Dictionary
》
P167, Volume 1 of Edition 2.
22