Welded pipe equipment, like people, will also have problems and have a lifespan, so it must be maintained and maintained. Only when the performance of the welded pipe equipment is excellent can it be used for a long time, and the efficiency can also be improved in the production. Then we talk about the importance of welding pipe equipment maintenance through the following points.
1. The squeeze roller moves axially
Due to the unstable positioning of the squeeze roller and the squeeze roller shaft, as well as the openness of other zero parts in the assembly process, the squeeze roller will move axially and swing radially. The pass of the squeeze roller will not match and cause lap welding.
2. Bearing damage
After the bearing is damaged, the normal position of the squeeze roller will be destroyed. Take the two-roller type squeeze roller device as an example. Generally, two sets of bearings are installed in the squeeze roller. When one of the squeeze rollers is damaged, the squeeze roller loses control and the welding seam will rise higher and cause lap welding. During production operation, we can observe the swing of the squeeze roller. When the upper bearing is damaged, the swing amplitude of the roller is larger, and when the lower bearing is damaged, the swing amplitude of the roller is smaller, which also has a certain relationship with the degree of bearing damage. After the bearing of the guide roller is damaged, not only can it not well control the direction of the weld seam of the tube blank, but the guide ring may also cause pressure loss on the edge of the tube blank due to the damage of the bearing, causing the weld height to change, which is slightly inappropriate. There will be lap welding accidents.
