Production process
X52 pipeline pipe is a high-strength, corrosion-resistant steel pipe widely used in the field of oil and gas transportation. Its production process mainly includes raw material selection, tube processing, rolling forming, welding, heat treatment, non-destructive testing, coating and packaging.
Raw material selection
The main raw material for producing X52 pipeline pipe is X52 grade steel plate. According to the specification requirements, high-quality steel plates that meet the requirements of chemical composition, mechanical properties and macroscopic structure are selected as the raw materials of the pipe.
Tube processing
The selected steel plates are cut and cut into corresponding tubes according to the design requirements and size requirements. Then, the tube is derusted and surface treated to ensure that the surface of the tube is clean and smooth, ready for subsequent processes.
Rolling forming
The tube is sent to the rolling mill for rolling forming. The tube shape of the tube is formed by rolling, and the temperature and deformation during the rolling process are controlled to ensure that the tube that meets the specification requirements is formed.
Welding
The tube billet after rolling is welded through the welding process, and the ends are seam welded. The welding process mainly includes submerged arc welding, resistance welding, high frequency welding, etc., to ensure that the weld quality is good and meet the strength and sealing requirements.
Heat treatment
In order to improve the mechanical properties of the pipeline pipe, a heat treatment process is carried out. Through a certain heating and cooling process, the organizational structure of the pipeline pipe is adjusted to achieve the expected mechanical performance indicators.
Non-destructive testing
Non-destructive testing is carried out on the pipeline pipe after heat treatment. It mainly includes ultrasonic flaw detection, magnetic particle flaw detection, radiographic flaw detection and other methods to detect the inside and outside of the pipeline pipe to ensure the quality of the pipeline pipe.
Coating and packaging
The pipeline pipe that has passed the inspection is coated. The coating can be an anti-corrosion coating, anti-corrosion tape, etc. to improve the corrosion resistance of the pipeline pipe. Then the pipeline pipe is packaged to protect the pipeline pipe from the external environment.
