HS115 cobalt base alloy surfacing welding wire
Description:
HS115 cobalt-based alloy surfacing wire The wire is molybdenum-enhanced low-carbon cobalt-chromium alloy, low hardness at room temperature, but after cold hardness increased. Surfacing layer has a good male high temperature corrosion resistance, impact resistance and good high temperature strength
use:
Mainly used for roller bit bearings, rotating blades and other parts of the boiler surfacing
Deposited metal chemical composition (%)
project | C | Ni | Mo | Cr | W | Fe | Co | Si | Cu |
guarantee value | 1.5-3.5 | 1.75-3.25 | 5.0-6.0 | 25-29 | 11-14 | - | margin | - | - |
Reference current (AC, DC - )
Diameter (mm) | 1.6 | 2.0 | 2.5 | 3.2 |
Welding current (A) | 50 ~ 100 | 100 ~ 200 | 200 ~ 300 | 300 ~ 400 |
Surfacing layer hardness HRC: ≥27
Precautions:
1. Protective gas: pure Ar; flow: 9 ~ 14L / min at current of 100 ~ 200A and 14 ~ 18L / min at current of 200 ~ 300A.
2. Tungsten extension length: 3 ~ 5mm; arc length: 1 ~ 3mm.
3. Wind speed limit ≤1.0m / s; it is recommended to pass argon gas protection on the back of welding area.
4. In welding, the size of the welding wire energy directly affects the mechanical properties of the weld metal and crack resistance, should pay more attention.
5. Welding parts of the rust layer, moisture, oil, dust, etc. in addition to net.
The above suggestions are for reference only, in the specific operation to the scene prevail. If necessary, process assessment and then determine the welding program.
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