No. P30051
―30―
9. WELDING PREPARATION (continued)
(5) Single Bevel Groove Penetration Welding Conditions
Groove shape
Number of
layers
Welding
current
(A)
Welding
voltage
(V)
Remark
Flat position
1 100
20-21
2 280
26-27
3 280
26-27
4 280
26-27
5 280
26-27
6 280
26-27
7
280
26-27
Oscillation
1 100
20-21
2 130
21-22
3 130
21-22
4 130
21-22
5 130
21-22
6 120
19-20
Vertical position
Oscillation
1 100-200
20-22
2 200
24-25
3 200
24-25
4 200
24-25
5 200
24-25
6 200
24-25
7 200
24-25
8 200
24-25
9 180
24-25
10 180 24-25
11 180 24-25
12 180 24-25
No
oscillation
Wire diameter: 1.2 mm
Ǿ㧘
Gas: 20% CO
2
+ Ar
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Unit: mm
Unit: mm
Unit: mm