1. The welding rod can not 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 successful welding effect is better, because the
aluminum tube melting cutting tool point is too low, the aluminum tube is easily deformed when the second reheating.
3. The inner liner must be placed with wet towels and protected in place, because the welding space is very small, so be sure to pay attention to the protection of the refrigerator.
4. The torch flame should not be too long, and it must be heated with mild fire, otherwise the dispersant aluminum tube is easy to melt.
5. After welding, it is necessary to wait for the special slurry of nylon wire to cool the pipe for two or three minutes before the cement storage can contact, otherwise the solder joint is easy to leak.
6. The electrode must be evenly coated with flux to ensure the quality of the solder joint.
7. The welding time can not be too long, because the melting point is too low and the time is too long, it is easy to melt or thin the wall of the aluminum tube, and it is easy to leak under pressure.
8. The welding rod can not be heated with the welding gun before dipping into the welding powder, because the melting point of the welding rod is too low.
