What are the common faults and solutions of pipe welding machine?

1. Weld quality problems:
Poor weld formation: It may be caused by too fast or too slow welding speed, unstable wire feeding, incorrect welding gun angle, etc. The solution is to adjust welding parameters, such as welding current, voltage, welding speed, etc., to ensure good weld formation. Check the wire feeding system to ensure smooth feeding. Adjust the welding gun angle to the optimal position.
2. Porosity, slag inclusion and other defects in the weld: It may be caused by insufficient welding current, insufficient shielding gas, incomplete weld cleaning, etc. The solution is to increase the welding current to ensure sufficient current. Check and adjust the shielding gas system to ensure that the gas is stable and sufficient. Clean the weld surface thoroughly before welding to remove oxide scale, oil stains, etc.
3. Welding machine power supply failure:
Possible reasons include abnormal power supply, fuse blowing, circuit board damage, etc. The solution is to check the power line to ensure normal power supply. Replace the fuse. If the circuit board is damaged, professional maintenance personnel are required to repair it.
4. Welding machine movement failure:
Possible reasons include wear of mechanical parts, control system failure, encoder failure, etc. The solution is to check the mechanical parts and replace the worn parts in time. Check the motor drive system and encoder, troubleshoot and repair. If there is a serious fault, please ask professional maintenance personnel to handle it.
5. Welding machine control system failure:
Possible reasons include software program abnormality, sensor failure, loose wiring, etc. The solution is to check the software program, restart the system or restore the factory settings. Check various sensors and replace damaged sensors. Carefully check the wiring to ensure that the wiring is good.
6. Electrical failure:
If the welding current is unstable, you can check whether the power supply voltage is normal. If the voltage is normal, you need to check the welding control board or regulator.
7. Mechanical failure:
For mechanical jams, check whether the lubricating oil is sufficient, clean the guide rails and moving parts, and replace the worn parts if necessary.
8. Gas failure:
Gas leakage can be checked by spraying soapy water to check whether there are bubbles at the connection. If there is a leak, tighten the connection or replace the parts.
9. Temperature control failure:
It is usually necessary to replace the thermostat to ensure that the new thermostat is compatible with the equipment.