Process KnowledgeLaser Cladding
Laser Cladding Process Notes for Laminar Cooling Roller Repair
Laminar cooling is positioned between the finishing mill and coiler in a hot strip line. The transport rollers in this section are laminar cooling rollers. Their working conditions require dimensional restoration, surface hardness, wear resistance, corrosion resistance and high-temperature resistance to be considered together.
Workflow
| Process | Description |
|---|---|
| Turning | Remove the surface fatigue layer |
| Inspection | Check roller diameter and hardness, perform penetrant testing and confirm that no cracks remain |
| Preheating | 250-300 C |
| High-power laser cladding | Wear resistance, corrosion resistance, HRC55-HRC60 hardness and 800 C high-temperature resistance |
| Semi-finishing | Reserve 0.1 mm allowance on one side according to the finished roller diameter |
| Grinding and final inspection | Machine to drawing dimensions and surface roughness, then complete final inspection |
Inquiry Notes
For roller, shaft or bearing housing repair assessment, please provide component photos, worn areas, drawings, material grades, operating conditions, target dimensions and inspection requirements. The final process should be confirmed according to the actual component condition.