Spiral steel pipe production technology (1) raw materials that is, strip coil, welding wire, flux. They are subjected to strict physical and chemical tests before they are put into use. (2) The butt joint of strip steel head and tail adopts single-wire or double-wire submerged arc welding, and

Thick-walled straight seam steel pipe plays an important role in people's way of life and some things, but maintenance and maintenance has always been a headache. Let's see what maintenance and maintenance of thick walled straight seam steel pipe need to pay attention to! First, choose the right s

During the forming process, the steel plate deforms evenly, the remaining stress is small, and the skin phase is not scratched. The processed spiral steel pipe has greater flexibility in the size and specification of the diameter and wall thickness, especially in the production of high-grade steel-grade thick-walled pipes, especially the small and medium-diameter thick-walled pipes have disadvantages that cannot be compared with other processes. To meet users' more requirements in terms of spiral steel pipe specifications.