Welding method of large-size elbow

The so-called large-diameter elbow is a large-diameter high-pressure steel pipe connector used in high-pressure pipelines such as oil, gas and coal slurry transportation. The pipe diameter is more than 630mm. These pipelines usually bear a high pressure of more than 100MPa.

Manual welding large size elbow

With the increasing development of pipeline transportation industry and the rapid development of science and technology, some large-scale projects (such as petrochemical industry) have higher and higher technical requirements for large-diameter elbow fittings required for pipeline connection, which are widely used. In the whole pipe fitting Road, large-diameter elbow is a vital component, and the strength, stiffness The curvature and other characteristics directly affect the quality of the whole road.

The automatic welding production of large-diameter elbows in Haihao Group

At present, the welding of large-diameter elbows in China usually adopts manual welding. Due to the large volume, heavy weight and high welding quality requirements of large-diameter elbows, the existing manual welding technology is difficult to meet the requirements of continuous, uniform and high-quality welds, and manual welding has high labor intensity and low efficiency, especially the welding inside pipe fittings, with poor labor environment, It will damage the health of workers. Therefore, our factory adopts the machine automatic welding technology to process the large-diameter elbow in the high-pressure pipeline, which solves the technical problems in the field of welding technology. In this way, the weld will be more beautiful and the quality will be better.

Haihao Group manufacture big size elbow products for about 40 years,the products sells well all over the world for the high quality.If you have any question,please contact us!