What are the requirements for the process of spiral welded pipes in petrochemical engineering?

Apr. 04, 2025

1. The diameter and wall thickness should be accurate. In order to ensure the normal use of the pipeline, the diameter and wall thickness of the spiral steel pipe must meet the design requirements. During the production process, it is necessary to strictly control the deviation range of pipe diameter and wall thickness to ensure that they meet the specified standards and accuracy.

2. The weld seam should be firm. The weld seam of spiral welded pipe is formed by bending the steel strip into a spiral shape and then performing submerged arc welding. It is a critical component of pipeline strength. The weld seam should be ensured to be firm, have sufficient strength and corrosion resistance to meet the load and corrosion requirements during production and transportation.

3. Good appearance quality. Spiral steel pipes are supplied for industrial production and construction, and their appearance quality is also crucial. During the production process of spiral steel pipes, attention should be paid to whether the appearance is undamaged, smooth, free of cracks and burns, and the surface should be treated with anti-corrosion measures such as plastic spraying or galvanizing to meet the requirements of use.

4. Strict requirements for standard implementation. In order to ensure the long-term durability of the produced spiral welded pipes under harsh industrial and construction conditions, it is necessary to strictly follow national and industry standards for production, including requirements for pipe wall thickness, chemical composition, mechanical properties, appearance, and size.

What are the requirements for the process of spiral welded pipes in petrochemical engineering?cid=4