Introduction to precision seamless pipe
Precision seamless pipes are usually heat-shrinkable cold-rolled pipes. Cold-drawn precision steel pipes are a high-precision steel pipe material that has been cold-drawn or hot-rolled. Due to the advantages of precision steel pipes having no oxide layer on the inner and outer walls, withstanding high pressure without leakage, high precision, high smoothness, no deformation in cold bending, no cracks in flaring and flattening, etc., they are used in hydraulic system piping, automobile manufacturing piping, military industry, engineering machinery, Railway locomotives, aerospace, ships, injection molding machines, die-casting machines, machine tools, diesel engines, petrochemicals, power stations, boiler equipment and other industries. Its chemical components are carbon C, silicon Si, manganese Mn, sulfur S, phosphorus P, and Cr.
Precision seamless pipe testing
In order to ensure the quality of pipelines, Precision seamless pipes will be tested before leaving the factory, including mechanical performance testing, process performance testing, eddy current testing, ultrasonic testing, hydraulic testing, metallographic testing, etc. The fields of pipeline application are different, and the testing methods There are also differences. This type of pipe material is also made using two processing methods: cold drawing and hot rolling. It can withstand higher pressure without leakage. At the same time, it has a high smoothness and will not deform in the cold bending state. These are the advantages of Precision seamless pipes.
High quality of precision seamless pipes
The high quality of precision seamless pipes is mainly reflected in the dimensional accuracy and surface finish. Even after heat treatment, there will be no oxide film on the surface of the pipe and it will not be deformed by cold bending, so it can be processed more complexly. These are the advantages of precision seamless pipes. Under the influence of strong external forces, the plastic resistance and fracture resistance of precision seamless pipes have been improved to a certain extent.
Four major characteristics of precision seamless pipe processing
Precision seamless pipe processing is an important process with four major characteristics, including high precision, high surface quality, high strength and high corrosion resistance. These features will be analyzed in depth below.
1.High precision
Precision seamless pipe processing is characterized by high precision and can meet the dimensional accuracy requirements of various industrial fields. Through advanced process technology and precision equipment, precise control of diameter, wall thickness, inner and outer diameters, etc. can be achieved to ensure the dimensional stability and consistency of the product.
2.High surface quality
During the processing of Precision seamless pipes, advanced polishing and brightening processing technologies are used to effectively reduce surface roughness and improve the smoothness and brightness of the steel pipes. At the same time, by optimizing material selection and processing technology, defects and residual stress on the internal and external surfaces can be reduced, the surface quality of the steel pipe can be improved, and the application fields with high requirements can be met.
3. High strength
Precision seamless pipe processing uses high-quality raw materials, and undergoes fine heat treatment and cold working processes to make the steel pipe have high strength and hardness. After processing, the Precision seamless pipe has a uniform and dense internal structure, good toughness and tensile properties, and can withstand work under extreme conditions such as high pressure and high temperature.
4. High corrosion resistance
Due to the special anti-corrosion treatment method used in the processing of Precision seamless pipes, the steel pipes have good corrosion resistance. These anti-corrosion technologies include surface galvanizing, spray anti-corrosion and electroplating, etc., which can effectively extend the service life of steel pipes and improve their corrosion resistance in harsh environments.
Precision seamless pipes are usually heat-shrinkable cold-rolled pipes. Cold-drawn precision steel pipes are a high-precision steel pipe material that has been cold-drawn or hot-rolled. Due to the advantages of precision steel pipes having no oxide layer on the inner and outer walls, withstanding high pressure without leakage, high precision, high smoothness, no deformation in cold bending, no cracks in flaring and flattening, etc., they are used in hydraulic system piping, automobile manufacturing piping, military industry, engineering machinery, Railway locomotives, aerospace, ships, injection molding machines, die-casting machines, machine tools, diesel engines, petrochemicals, power stations, boiler equipment and other industries. Its chemical components are carbon C, silicon Si, manganese Mn, sulfur S, phosphorus P, and Cr.
Precision seamless pipe testing
In order to ensure the quality of pipelines, Precision seamless pipes will be tested before leaving the factory, including mechanical performance testing, process performance testing, eddy current testing, ultrasonic testing, hydraulic testing, metallographic testing, etc. The fields of pipeline application are different, and the testing methods There are also differences. This type of pipe material is also made using two processing methods: cold drawing and hot rolling. It can withstand higher pressure without leakage. At the same time, it has a high smoothness and will not deform in the cold bending state. These are the advantages of Precision seamless pipes.
High quality of precision seamless pipes
The high quality of precision seamless pipes is mainly reflected in the dimensional accuracy and surface finish. Even after heat treatment, there will be no oxide film on the surface of the pipe and it will not be deformed by cold bending, so it can be processed more complexly. These are the advantages of precision seamless pipes. Under the influence of strong external forces, the plastic resistance and fracture resistance of precision seamless pipes have been improved to a certain extent.
Four major characteristics of precision seamless pipe processing
Precision seamless pipe processing is an important process with four major characteristics, including high precision, high surface quality, high strength and high corrosion resistance. These features will be analyzed in depth below.
1.High precision
Precision seamless pipe processing is characterized by high precision and can meet the dimensional accuracy requirements of various industrial fields. Through advanced process technology and precision equipment, precise control of diameter, wall thickness, inner and outer diameters, etc. can be achieved to ensure the dimensional stability and consistency of the product.
2.High surface quality
During the processing of Precision seamless pipes, advanced polishing and brightening processing technologies are used to effectively reduce surface roughness and improve the smoothness and brightness of the steel pipes. At the same time, by optimizing material selection and processing technology, defects and residual stress on the internal and external surfaces can be reduced, the surface quality of the steel pipe can be improved, and the application fields with high requirements can be met.
3. High strength
Precision seamless pipe processing uses high-quality raw materials, and undergoes fine heat treatment and cold working processes to make the steel pipe have high strength and hardness. After processing, the Precision seamless pipe has a uniform and dense internal structure, good toughness and tensile properties, and can withstand work under extreme conditions such as high pressure and high temperature.
4. High corrosion resistance
Due to the special anti-corrosion treatment method used in the processing of Precision seamless pipes, the steel pipes have good corrosion resistance. These anti-corrosion technologies include surface galvanizing, spray anti-corrosion and electroplating, etc., which can effectively extend the service life of steel pipes and improve their corrosion resistance in harsh environments.
