Double-sided submerged arc welded spiral steel pipe(SSAW pipe) is more and more popular in oil and gas, slurry transportation, urban construction and other industries due to its high pressure bearing capacity, small resistance, low temperature resistance, corrosion resistance, and convenient installation and maintenance.
Technical advantages of double-sided submerged arc welding spiral steel pipe
1. During the steel pipe forming process, the deformation of the steel plate is uniform, the residual stress is small, and the surface does not produce scratches. The processed steel pipe has greater flexibility in the diameter and wall thickness of the steel pipe size specification range, which can meet more requirements of users in terms of steel pipe specifications;
2. Using the process of pre-welding first and then internal and external welding (finish welding), welding can be realized at the best position, and it is not easy to have defects such as misalignment, welding deviation and incomplete penetration, and it is easy to control the welding quality;
3. The overall mechanical diameter expansion can effectively improve the dimensional accuracy of the steel pipe and improve the distribution of internal stress of the steel pipe, thereby avoiding damage caused by stress corrosion, and at the same time, it is beneficial to the welding construction on site;
4. Carry out 9 100% quality inspections on steel pipes, so that the whole process of steel pipe production is under effective inspection and monitoring, effectively ensuring the quality of submerged arc welded steel pipe products;
The thermal insulation and anti-corrosion double-sided submerged arc welded pipe can ensure the inner temperature and surface temperature of the double-sided submerged arc welded pipe in different working environments. At the same time, it is a thermal insulation and anti-corrosion measure to slow down or prevent corrosion and deterioration under the chemical and electrochemical action of the external medium or the metabolic activities of microorganisms.
Performance advantages of thermal insulation and anti-corrosion double-sided submerged arc welded pipe:
1. Good thermal insulation performance, heat loss is only 25% of traditional double-sided submerged arc welded pipe, long-term operation can save a lot of energy and significantly reduce energy costs.
2. It has strong waterproof and corrosion resistance. It can be directly buried in the ground or in water without the need for pipe trenches. The construction is simple and fast, and the overall cost is low.
3. Double-sided submerged arc welded pipe also has good corrosion resistance and impact resistance under low temperature conditions, and can be directly buried in underground frozen soil.
4. The service life can reach 30-50 years, and the correct installation and use can make the maintenance cost of double-sided submerged arc welded pipe extremely low.
5. An alarm system can be set to automatically detect the leakage fault of the double-sided submerged arc welded pipe, accurately indicate the fault location and automatically alarm.
Technical advantages of double-sided submerged arc welding spiral steel pipe
1. During the steel pipe forming process, the deformation of the steel plate is uniform, the residual stress is small, and the surface does not produce scratches. The processed steel pipe has greater flexibility in the diameter and wall thickness of the steel pipe size specification range, which can meet more requirements of users in terms of steel pipe specifications;
2. Using the process of pre-welding first and then internal and external welding (finish welding), welding can be realized at the best position, and it is not easy to have defects such as misalignment, welding deviation and incomplete penetration, and it is easy to control the welding quality;
3. The overall mechanical diameter expansion can effectively improve the dimensional accuracy of the steel pipe and improve the distribution of internal stress of the steel pipe, thereby avoiding damage caused by stress corrosion, and at the same time, it is beneficial to the welding construction on site;
4. Carry out 9 100% quality inspections on steel pipes, so that the whole process of steel pipe production is under effective inspection and monitoring, effectively ensuring the quality of submerged arc welded steel pipe products;
The thermal insulation and anti-corrosion double-sided submerged arc welded pipe can ensure the inner temperature and surface temperature of the double-sided submerged arc welded pipe in different working environments. At the same time, it is a thermal insulation and anti-corrosion measure to slow down or prevent corrosion and deterioration under the chemical and electrochemical action of the external medium or the metabolic activities of microorganisms.
Performance advantages of thermal insulation and anti-corrosion double-sided submerged arc welded pipe:
1. Good thermal insulation performance, heat loss is only 25% of traditional double-sided submerged arc welded pipe, long-term operation can save a lot of energy and significantly reduce energy costs.
2. It has strong waterproof and corrosion resistance. It can be directly buried in the ground or in water without the need for pipe trenches. The construction is simple and fast, and the overall cost is low.
3. Double-sided submerged arc welded pipe also has good corrosion resistance and impact resistance under low temperature conditions, and can be directly buried in underground frozen soil.
4. The service life can reach 30-50 years, and the correct installation and use can make the maintenance cost of double-sided submerged arc welded pipe extremely low.
5. An alarm system can be set to automatically detect the leakage fault of the double-sided submerged arc welded pipe, accurately indicate the fault location and automatically alarm.
