Flux-cored wire for gas shielded arc welding
A gas shielded and arc welding technology, applied in the direction of arc welding equipment, welding medium, welding equipment, etc., can solve the problems of no improvement in moisture absorption resistance, no consideration for reducing diffusible hydrogen, poor operability and arc stability, etc., and achieve good Soldering workability, reduction of diffusible hydrogen, effect of improving moisture absorption resistance
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[0080] Examples of the powder-cored welding wire for gas shielded arc welding according to the present invention will be specifically explained below while comparing their characteristics with those of comparative examples.
[0081] A steel shell having a composition shown in Table 1 below was filled with 13% by mass of flux, and a cored wire for gas shielded arc welding (1.2 mm in diameter) having a composition shown in Tables 4 and 5 below was prepared.
[0082] [Table 1]
[0083] steel shell
No
C
mn
Si
P
S
Ni
Cr
Mo
margin
A
0.050
0.30
0.06
0.01
0.01
0.01
0.02
0.02
iron and inevitable
impurities
B
0.004
0.45
0.15
0.01
0.02
1.80
1.20
0.30
iron and inevitable
impurities
[0084] [Table 2]
[0085]
[0086] [table 3]
[0087]
[0088]
[0089]
[0090] The perfo...
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