
Deposition techniques
Powder Welding
Process
Powder welding results in a smooth, dense coating with a diffusion bond to the base material. A standard oxy-acetylene torch is used, with the powder fed into the flame from an attached hopper.
The technique is typically used for glass moulds, smaller parts and repairs and is particularly suited for the repair of cast iron and machined parts, i.e. for building up edges and corners.
Typical working range
- Deposition rate: 0.5-2.5 kg/hour
- Deposition thickness: 0.2 - 12 mm
- Deposition hardness: 20 - 62 HRC
Benefits
- Simple to use: 1 step: deposit + fusing
- Strong bonding: 0.2-12 mm thickness
- Smoother surface
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Sales & Technical support
Problems with your powder welding process?
Problem | Cause | Solution |
Deposit peels off | 1. Poor preparation of the surface (oxidized or dirty surface) 2. Required surface roughness is >Ra 5 3. Too low preheating temperature 4. Too high preheating temperature 5. Too high content of S & Ti in the cast iron base |
Clean the surface well |
Cracks |
1. Overheating |
Slower cooling / controlled cooling |
Porosity |
1. Poor preparation of the surface |
Clean the surface well |

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