Powder Feeder of the Automated Weld Overlay Machine
The powder feeder is one of the crucial components of the Overlay Welding Machine, and the powder delivery process can be fully automated.
Introduction to the Powder Feeder:
Specifications of the powder feeder:
| Powder feeding amount (g/min) | 3-50 | 5-120 |
| Powder feeding motor | Stepper motor | Stepper motor |
| Powder feeding accuracy (%) | ≤5 | ≤5 |
| Powder storage filling capacity (kg) | 10 | 10 |
| Adapt to powder particle size (mesh) | 80-300 | 80-300 |
| Powder feeding air flow(m3/h) | 0.2-3 | 0.2-4 |
| Powder feeding pressure limit (MPa) | ≤0.4 | ≤0.4 |
| Powder feeding amount (g/min) | 3-50 | 5-120 |
The powder feeder is an essential component of the Overlay Welding Machine. It is responsible for the storage and transport of powder materials during the Automated Weld Overlay process. At the top of the feeder, there is typically a transparent storage container. This transparent design allows for real-time monitoring of the motor’s rotational direction during welding, the remaining amount of powder, and the proper operation of the feeder. The top end of the storage container is equipped with a control valve, allowing for the addition of powder during the machine’s operation without interruption. The outlet of the storage container is fitted with a stepper motor connected to the powder feeder’s control box, which intelligently manages the activation and volume of the powder feed. Images and the structure of the powder feeder’s control box can be seen in the following diagram:
1. Protective gas flow meter adjustment knob, 2. Flow indication of protective gas flow meter, 3. Display window for early/delayed powder feeding time, 4. Early powder feeding indicator light, 5. Delayed powder feeding indicator light, 6. Adjustment knob for early/delayed powder feeding time, 7. Automatic powder feeding indicator light, 8. Manual powder feeding indicator light, 9. Automatic/manual switch selection button, 10. Stop running indicator light, 11. Working status indicator light, 12. Start button, 13. Power switch, 14. Feed speed adjustment knob, 15. Feed speed display window, 16. Foot switch interface, 17. Power input, 18. Welding machine linkage control interface, 19. motor output interface, 20. Powder gas outlet interface, 21. Powder gas inlet interface.
Specifications of the Powder Feeder Control Box:
| DSFG-2 Technical parameter | Manual feeding | Automatic powder feeding |
| Powder feeding speed (r) | 0-100 | 0-100 |
| Powder feeding time in advance (s) | 0 | 0-5 |
| Lag powder feeding time (s) | 0 | 0-5 |
| Input voltage (V) | 220V, 50HZ AC | 220V, 50HZ AC |
| Weight(KG) | 3.5 | 3.5 |
| Dimensions (mm) | 270*220*155 | 270*220*155 |
Precautions for Adding Powder to the Powder Feeder:
The particle size of the welding powder generally ranges from 80 to 200 mesh. If the particle size is too small, the powder can easily be blown away, leading to a low material utilization rate. If the particle size is too large, it can clog the welding torch and tubing, potentially ruining the torch. Therefore, before adding the welding powder, it should be sifted to prevent clumping and other issues that can affect the welding quality and damage the welding equipment.
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