# Car manufacturing? # Military? # Machining? # Electronic equipment? # Medical equipment # Construction machinery? # Railway locomotive? # Aerospace? # Ship # Injection molding machine? # Die casting machine? # Machine tool processing? # Diesel Engine # Petrochemical? # Power station? # Boiler equipment?
1. cold drawing: after the rolling process, the preliminarily formed steel pipe is cold drawn to further reduce the pipe diameter and improve the uniformity of wall thickness. In the process of cold drawing, it is necessary to use special dies and tools to draw and straighten steel pipes for many times to ensure the accuracy and quality of the pipes. ?
2. Cold rolling: Similar to cold drawing, cold rolling is to further reduce the diameter and wall thickness of the preliminarily formed steel pipe. Multi-pass rolling and straightening on a special cold rolling mill can further improve the precision and quality of pipes.
3. Non-destructive testing: in the manufacturing process, it is necessary to carry out non-destructive testing on steel pipes to ensure their internal quality. Non-destructive testing includes ultrasonic testing, X-ray testing, magnetic particle testing, eddy current testing and other methods, which can detect cracks, inclusions, pores and other defects in steel pipes to ensure the safety and reliability of pipelines.
4. Straightening and bending: In the manufacturing process, steel pipes need to be straightened and bent to meet the requirements of specific applications. Straightening and bending treatment requires the use of special equipment and tools to carry out straightening and bending tests for steel pipes for many times to ensure that their shapes and dimensions meet the requirements.
5. Coating treatment: In order to improve the corrosion resistance and service life of steel pipes, steel pipes can be coated. Coating treatment can be carried out by means of zinc plating, plastic coating, coating, etc. The steel pipe surface can be covered with a protective layer to prevent corrosion and wear of the steel pipe surface.
6. Packaging: In the manufacturing process, steel pipes need to be packaged to prevent them from being damaged and polluted. Packaging method can be determined according to customer requirements, generally using vacuum packaging or binding packaging. ? In the manufacturing process of precision seamless steel pipe, there are many processes and testing links to ensure the accuracy and quality of the pipe. These processes include smelting, continuous casting, rolling, heat treatment, straightening, cutting, pickling, polishing, cold drawing, cold rolling, nondestructive testing, straightening and bending treatment, coating treatment and packaging. In these processes, each link has its own specific requirements and operating specifications, which need to be strictly controlled to ensure the quality and accuracy of pipes. At the same time, various tests and tests are needed in the manufacturing process, such as chemical composition analysis, mechanical properties testing, nondestructive testing and so on. , to ensure that the performance indicators of the pipe meet the requirements.
Precision seamless steel pipe is widely used in various fields, such as aerospace, petrochemical industry, automobile manufacturing, medical equipment, power industry and so on. Precision seamless steel tube has become one of the ideal materials for many key components because of its high precision and high reliability.