Spiral steel pipes are mainly used for water supply engineering, petrochemical industry, chemical, electricity, agricultural irrigation and urban construction. Used for liquid transportation: water drainage. Natural gas transportation: natural gas, steam, liquefied petroleum gas. Structural use: for pile tube and bridge; for docks, roads, building structures, etc.
The main technical characteristics of the spiral steel pipe:
1. During the formation process, the steel plate is uniformly deformed, the residual stress is small, and there is no scratches on the surface. The processing spiral steel pipes have greater flexibility within the diameter and wall thickness range, especially when the production of high -steel thick wall pipes, especially small and medium -diameter thick wall tubes, it has the advantages of other processes that cannot be compared, which can satisfy satisfaction and can satisfy it. User needs. There are more requirements for the specifications of spiral steel pipes.
2. Advanced double -sided buried arc welding technology can achieve the best position welding. It is not easy to occur on the edge errors, welding deviations, and welding defects to facilitate the control of welding quality.
3. In order to effectively test and monitor the whole process of steel pipe production and monitor the quality inspection of 100 % quality, effectively ensure product quality.
4. All equipment in the entire production line has the function of connected to the computer data collection system to achieve real -time transmission of data. The technical parameters in the production process are controlled by the central control room.
5. The raw material is a tube, a wire and a melt. Before entering, you must go through strict physical and chemical tests.
6. Peel off the steel head and tail docking joints, use single -silk or double wire buried arc welding, roll into steel pipes, and automatically perform buried arc welding to repair welding.
7. Before forming, bring steel, trim, flat, surface clean, transport and pre -curved.
8. Control the pressure on both sides of the conveyor with an electric contact pressure meter to ensure the smooth transportation of the steel band.
9. Adopt external control or internal control rollers.
10. Welding control device is adopted to ensure that the weld meets the welding requirements, and strictly controls the diameter, bits and welds of pipelines.
