Maintenance of welding gun of handheld laser welding machine
1. Regularly check and replace the contact tip
As the aperture of the worn contact tip becomes larger, the arc will become unstable, the appearance of the weld will deteriorate or the wire will stick; the end of the contact tip will stick to splashes, and the wire feeding will become uneven; the contact tip is not tightened, The threaded connection will heat up and weld to death.
2. Regularly clean and replace the spring hose
After the spring hose is used for a long time, a large amount of iron powder, dust, welding wire plating swarf, etc. will accumulate, which will make the wire feeding unstable. Therefore, it is important to clean it regularly. You can curl it and tap it lightly to shake off the accumulation, and then blow it off with compressed air. Use a brush to scrub the grease on the hose in the oil, and then blow it off with compressed air. If the spring hose is wrongly threaded or severely deformed and bent, replace it with a new hose. When changing the tube, make sure that it is suitable for the diameter and length of the welding wire used, and there should be no burrs on the cut surface.
3. Inspection of the insulating ferrule
If the insulating ferrule is removed for welding, splashes will adhere to the inside of the nozzle to make the nozzle and the live part conductive. The welding torch may burn out due to a short circuit. At the same time, in order to make the shielding gas flow out evenly, an insulating ferrule must be installed.handheld laser welding machine
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