Seamless steel pipes, precision-rolled steel pipes, and cold-drawn steel pipes will also have eccentricity problems due to perforation:Any factor that destroys the geometric accuracy of the deformation zone formed by the roller, the head, and the guide plate will aggravate the uneven capillary wall

After a series of processes such as forming, welding, and cooling, the spiral steel pipe still needs to be sawed. In this link, the length of the technical backup ruler directly affects the quality and sales of the finished welded pipe, so the length of the backup ruler should be controlled between

The production process of straight seam welded pipe is simple, the production efficiency is high, the cost is low, and the development is rapid. The strength of spiral welded pipes is generally higher than that of straight seam welded pipes. Welded pipes with larger diameters can be produced from na

In the construction sequence of steel pipe piles, we should first grasp all aspects of the project for careful consideration and analysis, such as construction machinery, construction period, design requirements, geomorphological environment, project volume, layout, steel pipe pile specifications an