In the production process, in addition to the quality of raw materials and the use of advanced submerged arc welding equipment, the production process is also very important, such as steel plate pretreatment: pretreatment of the steel plate such as rust removal, oil removal, and edge grinding to ensure the surface of the steel plate The cleanliness and flatness of the production line; and the core part of the production line "forming" and welding of steel pipes, followed by heat treatment, air cooling, etc. Welding technology is a very important part in the manufacturing process of steel pipes, and we have been working on improving our welding technology.
After cooling, the steel pipe will be inspected by online flaw detection equipment, which is mainly used to detect whether there are defects in the quality of the weld. This can better ensure the quality of the steel pipe. After that, sizing, straightening, sizing, etc. are carried out, and finally the appearance, size, and mechanical properties of the finished steel pipes are inspected to ensure that the quality of the steel pipes meets customer requirements.
We mainly produce
submerged arc welded steel pipes with a diameter of Φ300-Φ1422mm and a wall thickness of 8-60mm. High-strength steel is used, and the advanced submerged arc welding process ensures that the strength of the steel pipe reaches a very high level, withstands relatively large pressure and tension, and has high safety performance. And adopt advanced submerged arc welding process, high efficiency, high quality, can guarantee the welding quality and stability of the steel pipe. The welding can be completed in a short time, and at the same time, the internal and external welding quality of the steel pipe is guaranteed to be consistent, the service life of the steel pipe is prolonged, and the economic benefits of the steel pipe are improved.
English
Español
