Carbon fiber hanging applications, performance and classification

(1) What are Carbon Fiber Tubes Used For?

Carbon fiber tube is a kind of high performance material. It has extremely wide and diverse applications. With its high strength and high stiffness and low density. As well as excellent corrosion resistance and fatigue resistance. They have demonstrated unparalleled advantages in many fields.

In the construction field. Carbon fiber tubes serve as structural supports. In scenes with high structural rigidity requirements. Carbon fiber square tubes play a vital role. For water applications. Carbon fiber floating tube for water sports equipment. Buoys and others provide lightweight and robust buoyancy support. In addition, carbon fiber tubes are ubiquitous in the manufacture of vehicles. From cars and motorcycles, bicycles to drones and robots. They are used for frames and wheels. And key components such as intake and exhaust systems. To reduce weight and improve performance.

In the sports industry. Carbon fiber tubes also occupy a prominent position. For example, carbon fiber rod tubes are commonly used in fishing rods and golf clubs. Provides athletes with better feel and control. Carbon fiber bike tubes, on the other hand, are ideal for high-performance bike frames and forks. It can significantly improve riding comfort and efficiency.

In addition, carbon fiber tubes are also widely used for special purposes. Including carbon fiber rocket tubes used in the aerospace industry. Experimental carbon fiber cigar tubes for storing premium cigars. And their widespread use in the manufacture of kites, remote-controlled aircraft, and other models. These applications not only demonstrate the versatility of carbon fiber tubes. They also highlighted their potential for innovation in different fields.

In addition, the processing and assembly of carbon fiber tubes requires a range of auxiliary materials and tools. Such as carbon fiber tube fittings and inserts and molds. To ensure accurate connection and forming. Meet complex design requirements.

In conclusion, carbon fiber tubes, with their exceptional properties and vast potential for application, are continually driving advancements and progress across related industries.

Dimensions (mm)	Surface	Tensile Modulus (E)	Tensile strength level(σ)	Glass transition temperature (Tg)
Square carbon tube 30 x 30 x 2,5 mm	Carbon PW or plain black	from 110 to 150 GPa	form 1 000 to 2 000 MPa	from 100°C to 220°C
Square carbon tube 51 x 51 x 3 mm	Carbon fiber fabric or fiberglass fabric	from 110 to 150 GPa	form 1 000 to 2 000 MPa	from 100°C to 220°C
Square carbon tube 76 x 76 x 3 mm	Carbon fiber fabric or fiberglass fabric	from 110 to 150 GPa	form 1 000 to 2 000 MPa	from 100°C to 220°C
Square carbon tube 88 x 88 x 4 mm	Carbon fiber fabric or fiberglass fabric	from 110 to 150 GPa	form 1 000 to 2 000 MPa	from 100°C to 220°C
Square carbon tube 101 x 101 x 4 mm	Carbon fiber fabric or fiberglass fabric	from 110 to 150 GPa	form 1 000 to 2 000 MPa	from 100°C to 220°C
Custom sizes	Plain black, matt black, PW carbon, carbon fabric, glass fabric, painted…	from 90 to 450 GPa	from 1 000 to 3 400 MPa	from 100°C to 220°C

(2) Classification of carbon fiber tubes

1. Diversity of shapes and sizes

Square and rectangular carbon fiber tubes:
The design of rectangular and square carbon fiber tubes takes into account structural efficiency and load distribution. Their cross-sectional shape allows for higher bending stiffness and shear strength in specific directions. This is particularly important in applications where lateral or torsional loads need to be resisted. For example, in building structures. Square carbon fiber tubes can be used as support columns or beams. To enhance the overall stability of the structure. In the automobile industry. Rectangular carbon fiber tubes are commonly used to make body frames or suspension systems. To reduce weight. While improving vehicle handling and safety.
In addition, square and rectangular carbon fiber tubes also have good processing properties. It can be processed by cutting, drilling and welding. To meet different assembly needs. At the same time, they are flat in appearance. Easy to integrate and connect with other materials or components.
Round carbon fiber tube:
The circular carbon fiber tube has excellent mechanical properties and flow characteristics because of its uniform cross-section shape. When subjected to pressure or tensile load, the round tube can uniformly transfer stress. Reduce the occurrence of stress concentration. This characteristic makes the circular carbon fiber tube widely used in aerospace. As well as Marine engineering and sports equipment. For example, in aerospace. The circular carbon fiber tube can be used as the fuselage structure of the aircraft or the support of the engine. In Marine engineering, it can be used as a pressure shell for deep-sea submersibles or a support structure for offshore platforms.
In addition, the circular carbon fiber tube also has good hydrodynamic performance. It can reduce fluid resistance and improve flow efficiency. This makes them also promising for a wide range of applications in pipeline systems that transport liquids or gases.

2.special shape carbon fiber tube

Oval carbon fiber tube:
The elliptic carbon fiber tube combines the advantages of circular and rectangular tubes to provide both better fluid dynamics and higher flexural stiffness in specific directions. This tube performs well in applications where both fluid flow and structural stability need to be considered. For example, in the aerodynamic design of high-speed trains or aircraft, the oval carbon fiber tube can be used as a support structure for the deflector or fairing; In ship design, it can be used as a support rod for propellers or rudder blades.
Triangular, hexagonal and octagonal carbon fiber tubes:
These special-shaped carbon fiber tubes have attracted much attention for their unique structure and mechanical properties. Triangular carbon fiber tube has excellent stability. Maintaining structural integrity under lateral force; Hexagonal and octagonal carbon fiber tubes are known for their higher torsional resistance and structural stiffness. They are often used in applications that require complex loads and deformations. For example, the supporting parts of bridge structures. Towers for wind turbines and skeletons for high-end sports equipment.

3.physical characteristics and performance optimization

Wall thickness design:
The wall thickness of carbon fiber tube has an important influence on its mechanical properties. Thick-walled carbon fiber tubes can withstand larger loads and higher pressures due to their larger material volume and higher compressive strength. They are commonly used in applications requiring high load capacity and structural stability, such as support structures for heavy machinery and equipment, and load-bearing columns for large buildings. In contrast, thin-walled carbon fiber tubes are more lightweight and flexible, suitable for applications with strict weight restrictions, such as aerospace spacecraft, high-performance racing cars, and portable electronic devices.
In the design of wall thickness, it is necessary to consider the mechanical properties of materials, manufacturing process and use requirements and other factors to achieve the best performance.
Bend and thread design:
Bending carbon fiber tube adopts advanced manufacturing process. Achieve accurate bending deformation of the tube body. To accommodate complex installation requirements or optimize performance. In the manufacturing process. The bending Angle and radius of curvature need to be precisely controlled. To ensure that the bending pipe can still maintain good mechanical properties and stability. In the meantime. Bending carbon fiber tubes also requires the necessary post-processing (such as grinding, polishing, etc.). To improve its surface quality and aesthetics.
Threaded carbon fiber tubes simplify the connection process with other components through the internal thread design. This kind of pipe needs to process a certain specification of thread shape on the pipe wall during manufacturing. And ensure that its accuracy and quality meet the relevant standards. Threaded carbon fiber tubes are not only easy to install and remove. It also improves the reliability and tightness of the connection. Performs well in situations requiring frequent replacement or maintenance.

4. manufacturing process and technological innovation

With the progress of science and technology and the continuous innovation of manufacturing process. The manufacturing process of carbon fiber tube is becoming more and more refined and intelligent. From the selection of raw materials to the laying of fibers. As well as curing molding and post-treatment processing and other links have adopted advanced technical means and equipment. For example, in the selection of raw materials. Manufacturers will be based on different application requirements. Select different types of carbon fiber bundles and resin substrates; During optical fiber laying. Precision control with automated equipment. Ensure that the optical fiber routing direction and density meet requirements. During the curing process. On temperature and pressure. Precise control of time and other parameters to obtain the best product performance and quality stability; Finally, in the post-treatment processing stage, advanced grinding, polishing and coating processes are used to improve the surface quality and beauty of the product.

In addition, with 3D printing technology and nanotechnology. And the continuous development and application of emerging technologies such as intelligent manufacturing. It also brings new opportunities and challenges to the manufacturing process of carbon fiber tubes. The application of these emerging technologies will further promote the innovation and development of carbon fiber tube manufacturing technology. Improve the product performance and quality level, broaden its application field and market prospects.

(3) Carbon Fiber Tube Properties

Carbon Fiber Tube (carbon fiber tube) has a series of excellent properties, these properties make it widely used in many fields. The following are the main performance characteristics of Carbon Fiber Tube:

1. High intensity

High tensile strength: the tensile strength of carbon fiber is 6-12 times that of steel, which can reach more than 3000MPa, and even the tensile strength of some high-level carbon fiber tubes (such as T300 level) can reach about 3500MPa. This high strength characteristic makes carbon fiber tubes perform well under high loads.

High pressure resistance: carbon fiber tubes can withstand considerable pressure without damage, such as some products can withstand 75KG of people standing without breaking.

2.Lightweight

Low density: The density of carbon fiber is much lower than that of steel, only about 1/4 of steel, which makes carbon fiber tubes have extremely low weight, helping to achieve the lightweight design of the product.

3. Corrosion resistance

Excellent corrosion resistance: Due to the chemical stability of carbon fiber, carbon fiber tubes can resist corrosion for a long time without worrying about rust. In contrast, aluminum alloy pipes may gradually corrode after a period of use and have a shorter service life.

4. Stability and durability

Dimensional stability: Carbon fiber tubes have excellent dimensional stability and are able to maintain their shape and size under various environmental conditions.

Long life: Due to its high strength and corrosion resistance, carbon fiber tubes usually have a long service life.

5. Other physical properties

Low coefficient of thermal expansion: The coefficient of thermal expansion of carbon fiber tube is low. That means when the temperature changes. Its size changes less.

Good electrical and thermal conductivity: although not as good as metal. However, carbon fiber tubes still have certain electrical and thermal conductivity.

Self-lubricity: In some applications. Carbon fiber tube may exhibit some self-lubricity. Helps reduce friction and wear.

Energy absorption and shock resistance: Carbon fiber tubes can absorb a large amount of energy. And maintain structural integrity under impact. This makes them very useful in applications where impact loads are required.

6. Customizability

Diverse surface treatment: carbon fiber tubes can be different surface treatment according to needs, such as plain, twill, forging, gloss, matte, etc., to meet different aesthetic and functional needs.

Size customization: Carbon fiber tubes can be customized according to the specific needs of customers, including different lengths, diameters and wall thicknesses.

7. Economy

Cost-effective: Although the initial cost of carbon fiber tubes may be high, their excellent performance and long life make them cost-effective overall.

To sum up, Carbon Fiber Tube has been widely used in aerospace, automobile industry, sports equipment, building structure and high-tech equipment and other fields due to its excellent performance such as high strength, light weight, corrosion resistance, stability and durability, customizable and cost-effective. These properties make carbon fiber tube become one of the indispensable important materials in modern engineering design.

(4) Carbon Fiber Tube Characteristics

Carbon Fiber Tube (carbon fiber tube) has a series of unique properties, which make it widely used in multiple fields. Here are the key features of Carbon Fiber Tube:

1. High strength and light weight

High strength: Carbon fiber tubes have extremely high tensile strength. Far more than traditional metal materials such as steel. For example. The tensile strength of the T300 carbon fiber tube can reach about 3500mpa. Makes it perform well under high loads.

Lightweight: Despite high strength. But carbon fiber tubes have a very low density. It is only about 1/4 of steel, so it has excellent lightweight characteristics. This feature makes carbon fiber tubes very popular in applications where weight loss is required. Examples include aerospace and automotive manufacturing.

2. Corrosion resistance

Carbon fiber tubes have excellent corrosion resistance and can be used in a variety of harsh environments for a long time without damage. This feature makes carbon fiber tubes especially suitable for applications such as Marine engineering and chemical equipment that need to resist corrosion.

3. Stability and durability

Dimensional stability: Carbon fiber tubes are precisely controlled during the manufacturing process and are able to maintain a high degree of dimensional stability, maintaining their shape and size even under extreme conditions.

Long life: Due to its high strength and corrosion resistance, carbon fiber tubes typically have a long service life, which significantly reduces maintenance costs and replacement frequency.

4. Customizable

Carbon fiber tubes can be customized according to the specific needs of customers, including different lengths, diameters, wall thicknesses and surface treatments. This high degree of flexibility allows carbon fiber tubes to adapt to a variety of complex application scenarios and individual aesthetic needs.

5. Excellent physical properties

Low coefficient of thermal expansion: Carbon fiber tubes have a low coefficient of thermal expansion, which can maintain dimensional stability when the temperature changes.

Good electrical and thermal conductivity: although not as significant as metals, it still has practical value in some specific applications.

Energy absorption and impact resistance: Carbon fiber tubes can absorb a large amount of energy and maintain structural integrity under impact, with good impact resistance.

6. Surface treatment variety

Carbon fiber tubes can be provided with a variety of surface treatment options, such as plain, twill, forging, gloss, matte, etc., to meet different aesthetic and functional needs.

7. Wide range of applications

Due to its excellent performance characteristics. Carbon fiber tubes have been widely used in the aerospace and automotive industries. As well as sports equipment and building structures. And high-tech equipment and many other areas. For example, in aerospace. Carbon fiber tubes are used as aircraft fuselage structures or support parts for engines. In the automobile industry. It is used to make body frames or suspension systems. To reduce weight and improve performance.

In summary, carbon fiber tubes have high strength and light weight. Corrosion-resistant and durable. Customizable and wide range of applications. It has become one of the indispensable materials in modern engineering design.