How to solve the three quality problems of false welding, welding impermeability and welding port penetration that often occur in weather resistant steel welding?
1. Welding
The false welding that occurs in the hot-melt butt welding of weather resistant steel plate is mainly due to the insufficient clamping stroke of the butt welding machine and the too fast butt welding speed.
Virtual welding often occurs in hot-melt butt welding, but it is a problem that is not easy to notice. The solution is to leave enough fitter stroke margin before each welding.
2. Welding is impervious
The main reason for this situation is insufficient heating time. Generally speaking, the welding heating time of the thin-walled inner rear plate of different pipes, models and specifications is set by the factory, but the given heating time is set when the ambient temperature is 50C and there is breeze, and the ambient temperature is lower than Adjust accordingly when the temperature is 30C and the wind is strong.
3. Weld penetration
These quality problems are the opposite of penetration. Because the heating time of the inner and rear plates is too long, in the case of hot melt butt welding, some constructors believe that the longer the heating time during the welding process, the better the welding effect. On the contrary, if the inner and rear plates are heated for too long, carbonization will occur, which will seriously affect the welding quality.
