Taurus TIG200ACDC-HF-P - Page 24

OPERATION
24
Gas nozzle and the shield gas flow rate
Welding current
range/A
DC positive connection
AC
Gas nozzle
diameter/mm
Gas flow
rate/L·min
-1
Gas nozzle
diameter/mm
Gas flow
rate/L·min
-1
10～100
4～9.5
4～5
8～9.5
6～8
101～150
4～9.5
4～7
9.5～11
7～10
151～200
6～13
6～8
11～13
7～10
201～300
8～13
8～9
13～16
8～15
Note: the above parameters originate from《Welding Dictionary》P149, Volume 1 of Edition 2.
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