GB T9711 double-sided spiral seam submerged arc welded steel pipe.
Overview. GB T9711 double-sided spiral seam submerged arc welded steel pipe is a steel pipe product produced by double-sided submerged arc welding process, which has high efficiency, reliable welding performance and excellent mechanical properties, and is widely used in the transportation of oil, natural gas, water and other fluid media. This article will introduce the characteristics, production process, application fields and other related information of GB T9711 double-sided spiral seam submerged arc welded steel pipe.
Peculiarity. 1.Efficient welding: GB T9711 double-sided spiral seam submerged arc welded steel pipe adopts double-sided submerged arc welding process, which can achieve high-speed and efficient welding production and improve production efficiency.
2.High welding quality: due to the use of submerged arc welding process, the stability of weld forming is high, the weld quality is reliable, the weld margin is small, the grinding and repair welding processes are reduced, and the pass rate of the product is improved.
3.Excellent mechanical properties: The welding process of GB T9711 double-sided spiral seam submerged arc welded steel pipe strictly follows the national standards, and the mechanical properties and bending test indicators of the steel pipe meet the requirements of domestic and foreign standards, ensuring the excellent mechanical properties of the product.
4.Strong adaptability: The steel pipe can adapt to a variety of complex pipeline environments, such as crossing rivers, valleys, highways and other obstacles, and has strong adaptability.
5.Environmental protection and energy saving: In the production process, the steel pipe adopts environmentally friendly welding materials and welding processes, which can effectively reduce environmental pollution and energy consumption.
Production process. The production process of GB T9711 double-sided spiral seam submerged arc welded steel pipe mainly includes the following steps:
1.Steel plate preparation: The steel plate is cut to the required length, and the edge processing and cleaning are carried out to ensure that the steel plate surface is flat and free of impurities.
2.Bevel processing: Bevel processing is carried out on both sides of the steel plate to facilitate subsequent welding and forming.
3.Assembly and positioning: The steel plate is assembled and positioned to form the steel pipe to be welded.
4.Submerged arc welding: Submerged arc welding is carried out on both sides of the assembled steel pipe, and the connection is achieved by melting the metal at high temperature.