1. Stoma
Porosity is a relatively common problem when using automatic welding equipment in all-position welding. There are many reasons for this problem, such as the welding material itself, improper operation, environmental reasons, etc. In view of this, in order to effectively prevent this problem, in the welding process, gas protection should be strengthened, the welding temperature should not be increased, and the gas should be inflated in strict accordance with the proportion and related requirements to ensure that the filling purity meets the requirements.
At the same time, automatic welding machine manufacturers suggest to pay attention to the environment around the welding site. If the wind speed of the construction site exceeds 8 meters per second, use a windproof shelter for protection, and the environmental humidity should not be too high. In addition, in order to ensure that the welding position is kept dry, a ring flame heater or an intermediate frequency induction heater can be used for heating.
Two, not fused
In welding, the problem of lack of fusion usually occurs in the vertical welding position. The reason for this problem is that the shape of the weld is incorrect, the deviation of the weld during the welding process or the swing amplitude of the welding gun is unreasonable. In view of this, during the welding process, the bead should be polished as flat as possible when the bead is polished.
At the same time, before welding, you should carefully observe the welding wire to see if its swing is correct. In addition, during the welding process, if the center of the weld pool and the weld seam is found to be deviated, it should be adjusted in time to avoid non-fusion problems.