When using galvanized steel pipe, it is necessary to use welding to make the connection. In order to ensure a good seal, there are some issues to be aware of.
When using the rolling groove method to weld galvanized steel pipe, the rolling groove weld will be prone to cracking. In fact, this situation can be avoided, and smoothing the welding corners on the inner wall of the pressure groove can effectively reduce the resistance. In addition, the steel pipe can be adjusted to ensure that it is level with the rolling groove as much as possible. Adjusting the speed and strength of the pressure groove can ensure that it is formed evenly and applied slowly. Also ensure that the width and size of the support and pressure rollers are matched to each other and will not break due to occlusion.
In addition, if the butt joint of the galvanized steel pipe is not tight, it may be caused by the deformation of the nozzle due to the bump. It is recommended to cut off a small section of the steel pipe head before butting. Sand holes caused by improper operation during welding or zinc nodules left at the nozzle can be avoided by shoveling off the zinc nodules and grinding them flat before welding. The problem that often occurs with the wire connection method is that the pipe hoop and the thread buckle are not completely fitted, so the part that cannot be fitted must be cut off and reconnected.