News
-
Surface defects of seamless steel pipe and their causes
The causes of surface defects of seamless steel pipes are intricate. There are hundreds of influencing factors listed, and sometimes there are dozens of factors for the same defect, and the occurrence of defects has a great relationship with the steel type. This is why the production of seamless ...Read more -
Troubleshooting and Production Technology of Straight Seam Steel Pipe
Straight seam steel pipe is a steel pipe whose weld seam is parallel to the longitudinal direction of the steel pipe. It is usually divided into metric electric welded steel pipe, electric welded thin-walled pipe, transformer cooling oil pipe, and so on. The production process of straight seam we...Read more -
Position regulation and purity improvement of straight seam steel pipes induction coil
Adjustment of the position of the high frequency induction coil of the straight seam steel pipe: The excitation frequency of straight seam steel pipe is inversely proportional to the square root of capacitance and inductance in the excitation circuit, or proportional to the square root of voltage...Read more -
Inspection standards and welding control problems of thick-walled steel pipe
Through observation, it is not difficult to find that in the production of thick-walled steel pipes, thermal expansion pipes, etc., the pipes obtained by thick-walled welding on high-frequency welding equipment are called thick-walled steel pipes. Among them, according to the different uses and d...Read more -
What are the cutting methods of thick-walled spiral steel pipe
1. The mechanical cutting of thick-walled spiral steel pipe adopts two types of external installation and internal installation. It uses the principle of turning tool processing to cut and groove the nozzle. The single machine has a large span, a large thickness that can be processed, less waste,...Read more -
Technical characteristics of double-sided submerged arc welding spiral steel pipe
1. During the forming process of the spiral steel pipe, the deformation of the steel plate is uniform, the residual stress is small, and the surface does not produce scratches. Processed steel pipes have greater flexibility in the range of diameter and wall thickness of steel pipes, especially in...Read more