Large-diameter thin-walled welded spiral steel pipe is an indispensable and important structural material in modern industry, which is widely used in petroleum, chemical industry, electric power, water conservancy, aerospace and other fields. With the continuous development of industrial technology, the application of large-diameter thin-walled welded spiral steel pipe is becoming more and more extensive, and its manufacturing technology has been continuously improved and perfected. Spiral steel pipe processing manufacturers
The manufacturing process of large-diameter thin-walled welded spiral steel pipe mainly includes the following steps:
1.Plate preparation: Select the appropriate plate and carry out surface treatment to ensure the welding quality.
2.Coil forming: The sheet is rolled into a cylindrical shape and preliminarily welded.
3.Welding: Automatic welding technology is used to weld the inner and outer walls of the steel pipe to ensure the quality of the weld.
4.Heat treatment: heat treatment is carried out on the welded steel pipe to relieve stress and improve its mechanical properties.
5.Testing: Non-destructive testing of steel pipes to ensure that their quality meets the standard requirements.
6.Anti-corrosion treatment: The steel pipe is treated with internal and external anti-corrosion treatment to improve its service life.
In the manufacturing process, the manufacturing of large-diameter thin-walled welded spiral steel pipes is difficult, and high-precision manufacturing equipment and process control technology are required. At the same time, in order to ensure its quality and stability, it is necessary to carry out comprehensive quality control and supervision of its materials, processes, equipment, etc.
Large-diameter thin-walled welded spiral steel pipe has the following advantages:
1.High strength: It has high tensile strength and yield point, and can withstand large pressure and vibration.
2.Corrosion-resistant: Made of anti-corrosion coating or stainless steel material, it can adapt to a variety of corrosive environments.
3.Light weight: Compared with other metal materials, it has a low weight, which is easy to transport and use.
4.High temperature resistance: It can work stably for a long time in a high temperature environment, and is not easy to deform.
5.Easy installation: Spiral connection is adopted, which is easy and quick to install.
The application range of large-diameter thin-walled welded spiral steel pipes is very wide. In the petroleum industry, it is mainly used to transport fluids such as oil and natural gasIn the chemical industry, it can be used to manufacture pipes, storage tanks, reactors and other equipment;In the power industry, it can be used as a pipeline support structure in thermal power, nuclear power and other fields;In water conservancy projects, it can be used to transport water, sewage and other fluid media;In the aerospace field, it can be used to manufacture aircraft fuselage, rocket body and other structural components.