Sand-hole pipes are also a kind of quality accident caused by weld leakage, but their gaps are very small, some of them cannot be directly observed by human eyes, and must be found through testing equipment, so we call this kind of pipes sand-hole pipes. The main reasons for sand hole pipes are as f
Welded steel pipe, also known as welded pipe, is generally 6m in length. Welded steel pipes have simple production process, high production efficiency, many varieties and specifications, and less equipment investment, but the general strength is lower than that of seamless steel pipes. So, what are
During the welding operation, the phenomenon that the magnetic arc blowing affects the welding process sometimes occurs. The formation of the magnetic arc blow is the result of the presence of residual magnetism in the pipe metal.Generally, residual magnetism is divided into two types: induction mag
On August 24, a press conference was held on the 30-day countdown to the Hangzhou Asian Games. Ma Liyang, director of the Hangzhou Ecological Environment Bureau, introduced the latest situation on the carbon neutrality of the Asian Games.Currently, green and low-carbon development and addressing cli
Egypt International Tube Exhibition ended perfectly.Our team got acquainted with industry elites from all walks of life in Egypt and exchanged in-depth industry experience. We have gained a lot.This is just the beginning, TENGDI MACHINERY will continue to go to the next stop in the United States. As
Relatively speaking, the high-frequency welded pipe equipment consumes the most electricity on the production line of welded pipe manufacturers. Therefore, the efficiency of high-frequency welded pipe equipment directly affects the energy consumption per unit of the enterprise, and has a direct deci