熔敷金属化学成分(%)
试验项目
|
C
|
Mn
|
Si
|
S
|
P
|
Cr
|
Ni
|
Mo
|
Cu
|
保证值 | ≤0.04 | ≤2.00 | ≤1.00 | ≤0.030 | ≤0.040 | 17.0~ 22.0 |
22.0~ 27.0 |
4.00~ 5.50 |
≤ 2.00 |
熔敷金属力学性能
试验项目
|
Rm
(MPa) |
A
(%) |
保证值 | ≥490 | ≥25 |
参考电流(AC、DC+)
焊条直径(mm)
|
Φ2.0
|
Φ2.5
|
Φ3.2
|
Φ4.0
|
Φ5.0
|
焊接电流(A) | 40~80 | 50~100 | 70~130 | 100~160 | 140~200 |
2. 尽可能采用直流电源,电流不宜过大。
![](https://www.tjgoldenbridge.com/Site/default/theme/images/welding1.png)
![](https://www.tjgoldenbridge.com/Site/default/theme/images/welding2.png)
![](https://www.tjgoldenbridge.com/Site/default/theme/images/welding4.png)
![](https://www.tjgoldenbridge.com/Site/default/theme/images/welding5.png)
![](https://www.tjgoldenbridge.com/Site/default/theme/images/welding6.png)