Precautions for on-site welding of steel structure bolt balls
1. When it comes to welding, everyone is very worried. The welding of the ball handle is carried out in the factory, and it is the welding of the same base material, which is carried out according to the conventional process, which is no problem. On-site welding, such as the welding of the connecting plates of the rods, the welding of supports such as roofs, carriages, light bridges, and the welding of reinforcement parts when the grid is reinforced, etc., are welded after the grid is installed or during the use of the grid.
There are three concerns about on-site welding: first, whether the internal force will change after the grid components are welded and heated, resulting in structural instability and damage; second, whether the welding of different base materials of Q235B steel plate and 45 #steel bolt ball is possible; third, after the welding of components heats up, especially on the bolt ball, will the welding cause high-strength bolt annealing and the strength will decrease.
