Spiral welded pipe is a commonly used pipe material, which is widely used in oil, natural gas, chemical industry and other fields. SY T5037 spiral welded pipe is one of the standards, which stipulates the requirements for the manufacture, inspection and testing of spiral welded pipe. This article will introduce the standard requirements, manufacturing process, and inspection methods of SY T5037 spiral welded pipe.
1. Standard requirements for SY T5037 spiral welded pipe.
The SY T5037 spiral welded pipe standard specifies the requirements for the size, material, manufacturing process, inspection method and other aspects of the pipe. Among them, the outer diameter, wall thickness and length of the pipeline are required to meet the requirements in terms of size, and the material requires the pipeline to be made of high-quality steel materials. In terms of manufacturing process, the standard stipulates the requirements for the manufacturing process, welding process, heat treatment and other requirements of the pipeline. In terms of inspection methods, the standard stipulates the requirements for visual inspection, non-destructive testing, and pressure testing of pipelines.
2. The manufacturing process of SY T5037 spiral welded pipe.
1.Preparation of raw materials.
The manufacture of SY T5037 spiral welded pipe requires the use of high-quality steel materials, such as Q235B, Q345B, etc. In the preparation stage of raw materials, the steel plate needs to be inspected for quality to ensure that it meets the requirements of the standard.
2.Steel plate cutting.
The steel plate is cut into a certain length of tube blank, and attention needs to be paid to ensure the flatness and verticality of the tube blank during the cutting process.
3.Coil forming.
The tube blank is rolled into a cylindrical shape of a certain diameter, and attention needs to be paid to ensure the flatness and roundness of the cylinder during the rolling process.
4.Weld.
The cylindrical shape is welded by means of submerged arc automatic welding or manual arc welding, and attention needs to be paid to ensure the welding quality and welding speed during the welding process.
5.Heat treatment.
Heat treatment is applied to the welded pipes to relieve welding stress and improve the strength and toughness of the pipes.
6.Inspection.
Conduct visual inspection, non-destructive testing, pressure test and other inspections on the heat-treated pipeline to ensure that it meets the standard requirements.
3. Inspection method of SY T5037 spiral welded pipe.
1.Visual inspection.
Check the appearance of the sy T5037 spiral welded pipe, including surface quality, weld quality, etc. Appearance inspection is an important means to preliminarily judge the quality of pipelines.
2.Non-destructive testing.
Ultrasonic testing, radiographic testing and other methods were used to carry out non-destructive testing on the SY T5037 spiral welded pipe to find defects and problems inside the pipeline. Non-destructive testing is an important means to ensure the quality of pipelines.
3.Stress test.
The pressure test of SY T5037 spiral welded pipe was carried out to check the strength and sealing performance of the pipe. Pressure test is an important means to ensure the safe operation of pipelines.
Fourth, summary. SY T5037 spiral welded pipe is a commonly used pipeline material, which is widely used in oil, natural gas, chemical industry and other fields. This paper introduces the standard requirements, manufacturing process, and inspection methods of SY T5037 spiral welded pipe. In order to ensure the quality and safety performance of SY T5037 spiral welded pipe, it is necessary to strictly comply with the standard requirements, and adopt reasonable manufacturing processes and inspection methods for production and inspection. At the same time, regular maintenance and maintenance are also required during use to ensure its safe operation and service life.