Features And Application of Thin-walled Precision Tube

Precision tubes are high-precision, high-brightness seamless steel pipes produced by cold drawing or cold rolling. Thin-walled precision tubes are tubes with high-precision dimensions, low surface roughness and good deformation resistance, usually with a wall thickness of ≤2mm. It plays an important role in many fields such as machinery manufacturing, automobile industry, aerospace, etc. The following will elaborate on its characteristics and applications.

Features of thin-walled precision tubes

1. High-precision dimensions

One of the notable features of thin-walled precision tubes is its high-precision dimensions. Through advanced production processes, its outer diameter and wall thickness tolerances can be controlled within a very small range. For example, the outer diameter tolerance can be controlled within ±0.05mm, and the wall thickness tolerance can reach ±0.02mm, which makes it perform well in the manufacture of equipment with extremely high dimensional accuracy requirements, ensuring the precise installation and matching of parts and reducing equipment failures and performance degradation caused by dimensional deviations.

2. Good surface quality

The surface is extremely smooth, and the roughness can generally reach Ra0.2 - Ra1.6μm. This smooth surface can not only enhance the corrosion resistance of the pipe, reduce the adhesion and erosion of corrosive media on the surface, but also reduce the friction resistance of the fluid when it flows in the pipe. In the system of conveying liquid or gas, the smooth inner wall helps to improve the conveying efficiency and reduce energy loss.

3. High strength and high toughness

Thin-walled precision tubes have high strength and good toughness after special heat treatment and processing technology. Its yield strength can generally reach 300-600MPa, the tensile strength can reach 400-800MPa, and the elongation is not less than 15%. This makes it less likely to deform and rupture when subjected to greater pressure and external force, and can ensure safety and reliability during use.

4. Good material uniformity

During the production process, strict quality control ensures the uniformity of the material of thin-walled precision tubes. The chemical composition and organizational structure of each part are consistent, and the performance is stable. This makes the mechanical and physical properties of the pipes in different parts similar, and there will not be too large differences in local performance, thereby improving the overall performance and life.

Application of thin-walled precision tubes

1. Mechanical manufacturing field

In mechanical manufacturing, thin-walled precision tubes are often used to manufacture various precision parts, such as hydraulic cylinders and cylinder barrels. Its high-precision dimensions and good surface quality can ensure the precise fit between the piston and the cylinder barrel, reduce leakage, and improve the working efficiency and stability of hydraulic cylinders and cylinders. At the same time, its high strength and high toughness can also meet the various forces that the equipment is subjected to during long-term operation.

In addition, in machine tool manufacturing, thin-walled precision tubes can be used as raw materials for guide rails, screw rods and other components, providing high-precision moving parts for machine tools, ensuring processing accuracy and product quality.

2. Automobile industry

Thin-walled precision tubes are widely used in the fuel injection system of automobile engines. Its high-precision inner diameter size can ensure the accuracy and stability of fuel injection, so that the fuel can be fully burned in the engine, improve fuel efficiency, and reduce exhaust emissions.

The braking system of a car is also inseparable from thin-walled precision tubes. As a brake oil pipe, it needs to withstand high pressure and ensure the smooth flow of brake fluid. The high strength and good corrosion resistance of thin-walled precision tubes meet this demand and ensure the reliability and safety of the car's braking system.

3. Aerospace field

The performance requirements of parts in the aerospace field are extremely stringent. Thin-walled precision tubes have been used in this field with their unique advantages.

In the hydraulic system of an aircraft, thin-walled precision tubes are used to transport high-pressure hydraulic oil to provide power support for the aircraft's flight control, landing gear retraction and other systems. Its high strength and lightweight characteristics can not only meet the pressure requirements of the system, but also reduce the overall weight of the aircraft, improve fuel economy and flight performance.

In the manufacture of spacecraft, thin-walled precision tubes are used to manufacture various structural parts and piping systems to adapt to the extreme conditions of the space environment.

4. Medical device field

In the manufacture of medical devices, thin-walled precision tubes are also widely used. For example, in some high-precision testing equipment and treatment instruments, parts made of thin-walled precision tubes are needed to ensure the accuracy and stability of the equipment.

For example, some transmission parts and supporting structures in equipment such as X-ray machines and CT scanners can ensure the precise operation of the equipment and provide reliable protection for medical diagnosis and treatment. At the same time, its good corrosion resistance also meets the requirements of medical equipment for hygiene and reliability.

5. Building decoration field

Thin-walled precision tubes also show unique charm in the field of building decoration. Its smooth surface and exquisite appearance make it an ideal material for some modern building decoration.

In the railings, handrails, decorative frames and other parts of the building, thin-walled precision tubes can not only provide sufficient strength and stability, but also present beautiful metal texture through different surface treatment processes such as chrome plating and galvanizing, thereby improving the overall beauty and quality of the building.

Summary

Thin-walled precision tubes play an irreplaceable role in many fields with their high-precision dimensions, good surface quality, high strength and high toughness, and good material uniformity. With the continuous advancement of science and technology, their application prospects will be broader.