1.Check and replace the electric nozzle regularly
As the hole diameter of the worn nozzle becomes larger, the arc will be unstable, the weld appearance will deteriorate or the wire will stick (burn back); The end of the contact nozzle is stuck with spatter, and the wire feeding will become uneven; If the contact nozzle is not tightened tightly, the thread connection will be heated and welded.
2.Clean and replace the spring hose regularly
After the spring hose is used for a long time, there will be a large amount of iron powder, dust, welding wire plating chips, etc., which will make wire feeding unstable. Therefore, it is important to clean it regularly. You can curl it and gently knock it to shake off the deposits, and then blow it off with compressed air. Use a brush to wash the oil dirt on the hose, and then use compressed air to blow it out. If the spring hose is wrongly wired or seriously deformed and bent, replace it with a new hose. When replacing the pipe, confirm that it is suitable for the diameter and length of the welding wire used, and there is no burr on the cutting section.
3.Inspection of insulating ferrule
If the insulating ferrule is removed for welding, the spatter will adhere to the nozzle and make the nozzle and the live part conductive. The welding gun may be burnt due to short circuit. At the same time, in order to make the protective gas flow out evenly, the insulating ferrule must be installed.
