The main technical characteristics of spiral steel pipe:. A molding process, steel deformation uniformity, small residual stress, the surface does not produce scratches. Spiral steel processing in the diameter and wall thickness range of sizes greater flexibility, especially in the production of high-grade steel thick-walled tubes, especially small and medium-diameter thick-walled tubes with other aspects of technology can not match advantage, users can meet In the spiral steel pipe specifications more requests. b. use of advanced double-sided submerged arc welding process, welding can be achieved in the best position, less prone to the wrong side, partial and incomplete penetration weld defects, easy to control the quality of welding. c. 100% on steel quality inspection, so that the whole process of steel production in the effective detection, under surveillance, effectively ensure the product quality. d. all of the entire production line equipment and computer data acquisition system with networking capabilities, real-time data transmission from the central control room of the production process technical parameters. Production of spiral welded pipe spiral pipe production line introduction to do with the hot strip unit raw material, often warm spiral shape, automatic submerged arc welding process, product implementation API, SPEC, 5L (API, 5L), EN10217, GB/T9711 .1-1997, GB/T9711.2-1997, SY/T5037-2000 standard mainly used in oil and gas industry, transportation of flammable and non-flammable fluid and fluid steel spiral steel unit due to increasingly higher bearing pressure pipelines, increasingly harsh conditions, and to try to extend the life of the pipeline, so the main development direction of spiral steel pipe is the production of large diameter thick wall pipe pressure to increase capacity, design and production of new steel structures, such as the double spiral steel pipe, which uses half the thickness of the wall welded steel double tube, not only stronger than the thickness of the single-pipe with high spiral steel pipe manufacturer, and will not appear brittle failure; vigorously develop coated pipes, such as the inner wall of the tube coated with anti-corrosion layer not only extend life and improve the smoothness of the inner wall, reducing fluid friction, reducing the volume of wax and dirt, reducing the number of pigs, reducing maintenance costs, the development of new steel grades, raise the level of spiral steel smelting technology, widely used controlled rolling and heat treatment after rolling processes to continuously improve the toughness and weldability of the pipe body. Spiral steel unit from the welding process, the welding seam steel spiral pipe consistent with straight way, but inevitably there will be a lot of Longitudinal T-seam, so the probability of the existence of welding defects is also greatly improved, and T-weld The welding residual stress is large, often in a three-weld metal spiral pipe stress quality and security, increasing the likelihood of cracks. according to process requirements spiral submerged arc welded steel pipe Hebei billion in gold, each weld should There arc and arc quenching at office, but when each Longitudinal seam welding ring, unable to meet the conditions whereby the extinction may have more of the welding defects. using air plasma cutting machine to cut a single tube roots. LSAW steel pipe is produced, and spiral steel pipe is hot-rolled coil production. spiral steel pipe spiral steel pipe manufacturer _ _ Hebei billion gold piping supplied by Hebei billion gold piping. If you have any questions about this information or consultation, please contact us now! Our Company Name: Hebei billion Gold Pipe Manufacturing Co. (www.yijinguanjian.com) Contact: Alan Li Tong, or click on "Business League call" direct dialogue with us!