Welding method of aluminum pipe

Some knowledge is needed when welding aluminum pipes
1. The welding rod cannot be heated with the welding gun before dipping into the welding powder, because the melting point of the welding rod is too low.
2. The one-time welding is more successful, because the point of the rotary cutting tool of aluminum tube is too low, and the aluminum tube will easily deform during the second reheating.
3. The inner tank must be placed with wet towel to protect it well. Since the welding space is very small, it must pay attention to the protection of the refrigerator.
4. The torch cannot be too long and must be slightly heated, otherwise the dispersant aluminum tube will melt easily.
5. After welding, the cement storage tank shall be contacted after the special slurry for nylon wire is cooled for 2 or 3 minutes, otherwise the welding spot will leak easily.
6. The welding rod must be evenly coated with flux to ensure the quality of the welding spot.
7. The welding time cannot be too long, because the melting point is too low and the welding time is too long, which may cause the aluminum pipe wall to melt or become thin, and the pressure is easy to leak.
8. The welding rod cannot be heated with the welding gun before dipping the welding powder because the melting point of the welding rod is too low.