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Introduction of precision hydraulic seamless steel pipe? Precision hydraulic seamless steel pipe is made of high-quality carbon structural steel or low-alloy structural steel, which has high strength, high corrosion resistance and good low-temperature performance. It can obtain accurate size and smooth surface by cold drawing or hot rolling, and the pipe has excellent mechanical properties and reliability after reasonable heat treatment and nondestructive testing. ?
In the manufacturing process of precision hydraulic seamless steel pipe, it is necessary to carry out multiple procedures and quality inspection links to ensure the accuracy and quality of the pipe. Among them, in the preparation stage, it is necessary to select suitable raw materials for smelting, continuous casting and rolling to form a steel plate with certain specifications. In the rolling process, it is necessary to control the rolling speed, pass pressure, temperature and other parameters to ensure the shape and dimensional accuracy of the pipe. At the same time, heat treatment and nondestructive testing are needed to ensure the mechanical properties and reliability of the pipe.
Second, how to ensure the high sealing of precision seamless steel pipe? ? The high tightness of precision hydraulic seamless steel pipe is one of its most important characteristics, which can ensure the stability and reliability of hydraulic system. The following are several aspects to ensure the high sealing performance of precision seamless steel pipe:
1. Material selection: high-quality carbon structural steel or low-alloy structural steel is used for precision hydraulic seamless steel pipes. These materials have excellent mechanical properties and corrosion resistance, which can ensure the sealing performance during long-term use.
2. Manufacturing technology: The manufacturing technology of precision hydraulic seamless steel pipe adopts cold drawing or hot rolling to obtain accurate size and smooth surface. In addition, after reasonable heat treatment and nondestructive testing, the mechanical properties and sealing properties of the pipe can be further improved.
3. Machining accuracy: The machining accuracy of precision hydraulic seamless steel pipe is very high, which can ensure the accuracy of internal and external diameter, wall thickness, coaxiality and other parameters of the pipe, thus avoiding the problem of poor sealing caused by dimensional error.
4. Surface quality: The surface quality of precision hydraulic seamless steel pipe is very smooth, and there are no obvious defects such as scratches, depressions and scales, which can reduce fluid resistance and improve sealing performance.
5. Heat treatment quality: After reasonable heat treatment, the precision hydraulic seamless steel pipe can eliminate residual stress, improve the mechanical properties and corrosion resistance of the material, thus ensuring the sealing performance in long-term use.
6. Non-destructive testing: Non-destructive testing, such as X-ray testing and ultrasonic testing, is needed in the manufacturing process of precision hydraulic seamless steel pipe to ensure that the pipe has no defects and cracks and can ensure the sealing performance during long-term use. ? Precision hydraulic seamless steel pipe has strict requirements in material selection, manufacturing technology, machining accuracy, surface quality, heat treatment quality and nondestructive testing. These measures can ensure that the pipe has the characteristics of high sealing, high strength and long service life, thus meeting the needs of various fields.