Spiral submerged arc welded spiral steel pipe is a common pipeline material, which is widely used in oil, natural gas, chemical industry and other fields. This kind of steel pipe adopts spiral seam welding technology, which has good mechanical properties and corrosion resistance, and can meet the requirements of pipelines in various complex environments. Spiral steel pipe processing manufacturers
1. Characteristics of spiral submerged arc welded spiral steel pipe.
1.High strength: Spiral seam submerged arc welding spiral steel pipe is made of high-strength steel, which has high tensile strength and yield point after precision processing and welding process, and can withstand large pressure and bending stress.
2.Corrosion resistance: The spiral seam submerged arc welding spiral steel pipe adopts a high-quality anti-corrosion layer, which can effectively resist the erosion of corrosive media such as acid, alkali and salt, and ensure the long-term stable operation of the pipeline.
3.Good sealing: Spiral seam submerged arc welded spiral steel pipe adopts special sealing material and sealing structure, which has good sealing performance and can effectively prevent medium leakage.
4.Easy installation: The length of the spiral submerged arc welding spiral steel pipe is long, generally 10-12 meters, which reduces the number of connection points and welds, and is convenient for installation and maintenance.
5.Long life: Spiral seam submerged arc welding spiral steel pipe has a long service life, generally up to 30-50 years, which reduces replacement and maintenance costs.
Second, the application of spiral seam submerged arc welding spiral steel pipe.
1.Oil and gas transportation: Spiral seam submerged arc welded spiral steel pipes are widely used in oil and gas transmission pipelines, which can withstand high pressure and high temperature environments to ensure safe and reliable transportation.
2.Chemical pipelines: spiral seam submerged arc welded spiral steel pipes are suitable for all kinds of chemical pipelines, such as acid, alkali, salt and other media transportation, with good corrosion resistance.
3.Water supply and drainage pipes: spiral seam submerged arc welded spiral steel pipes can also be used for water supply and drainage pipelines, such as tap water, sewage treatment, etc., with high mechanical strength and durability.
4.Other fields: In addition to the above fields, spiral seam submerged arc welding spiral steel pipe can also be used in ships, aviation, electric power and other fields, with a wide range of application prospects.
3. Production process of spiral submerged arc welded spiral steel pipe.
1.Preparation of raw materials: high-quality steel is selected, and the steel is processed into the required tube blank after leveling, cutting and other processes.
2.Pre-bending: Professional pre-bending equipment is used to pre-bend the tube blank to facilitate the subsequent welding operation.
3.Spiral seam welding: Using submerged arc welding technology, the pre-bending tube blank is welded with spiral seam to form the required spiral seam submerged arc welded spiral steel pipe.
4.Anti-corrosion treatment: The welded steel pipe is treated with anti-corrosion, spraying, electroplating and other methods to improve the corrosion resistance of the steel pipe.
5.Quality inspection: Carry out quality inspection on the completed spiral seam submerged arc welded spiral steel pipe, including appearance, size, pressure and other testing items to ensure that the product quality meets the requirements.
6.Warehousing of finished products: Packaging, labeling, and storage of qualified spiral seam submerged arc welded spiral steel pipes for subsequent delivery and use.