32
Appendix
Welding parameter list
Generally, welding current is adequate to welding electrode according with as
following.
Electrode
specification
φ2.5
φ3.2
φ4.0
φ5.0
Welding current
70-100A
110-140A
170-220A
230-280A
Welding variables when use MIG welding
The values listed in the following table are the general specification values under standard
condition.
Plate
thickness
mm
Wire
diameter
(mm)
Interval
(mm)
Current
A
Voltage
V
Welding
speed
(cm/min)
Wire
extension
(mm)
Gas flow rate
(L/min)
I
S
q
u
a
re
b
u
tt
w
e
ld
in
g
Lo
w
w
e
ld
in
g
s
p
e
e
d
0.8
0.8,0.9
0
60
70
16
16.5
50
60
10
10
1.0
0.8,0.9
0
75
85
17
17.5
50
60
10
10
15
1.2
0.8,0.9
0
80
90
16
16.5
50
60
10
10
15
1.6
0.8,0.9
0
95
105
17
18
45
50
10
10
15
2.0
1.0,1.2
0
0.5
110
120
18
19
45
50
10
10
15
2.3
1.0,1.2
0.5
1.0
120
130
19
19.5
45
50
10
10
15
3.2
1.0,1.2
1.0
1.2
140
150
20
21
45
50
10
15
10
15
4.5
1.0,1.2
1.0
1.5
160
180
22
23
45
50
15
15
1.2
1.2
1.6
220
260
24
26
45
50
15
15
20
1.2
1.2
1.6
220
260
24
26
45
50
15
15
20
1.2
1.2
1.6
300
340
32
34
45
50
15
15
20
1.2
1.2
1.6
300
340
32
34
45
50
15
15
20
Hi
g
h
w
e
ld
in
g
s
p
e
e
d
0.8
0.8,0.9
0
100
17
130
10
15
1.0
0.8,0.9
0
110
17
5
130
10
15
1.2
0.8,0.9
0
120
18
5
130
10
15
1.6
1.0,1.2
0
180
19
5
130
10
15
2.0
1.0,1.2
0
200
21
100
15
15
2.3
1.0,1.2
0
220
23
120
15
20
3.2
1.2
0
260
26
120
15
20
