Regarding the strength of carbon fiber pipes:
Simply put, the tube rolling process involves hot rolling carbon fiber prepreg onto a tube rolling machine. Composite material manufacturers use the rolling process to produce high-strength carbon fiber pipes. Carbon fiber pipes mainly rely on the tensile stress of carbon fibers to withstand loads. Before being put into use, their strength needs to be tested. Many customers have no concept of the strength of carbon fiber pipes. This article will briefly introduce it.
The production process of carbon fiber tubes varies, resulting in different product strengths. Taking T700 carbon fiber and resin as raw materials and using winding molding technology to produce carbon fiber pipes as an example, testing carbon fiber pipes with a specification of 1.6 * 50 * 500mm, it can be found that the average compressive strength of carbon fiber pipes can reach 230MPa. After exceeding the load, brittle failure will occur, and the strength of the matrix determines the strength of the carbon fiber pipes.
In the tensile strength test of carbon fiber tubes, it was found that carbon tubes can withstand tensile strength of over 800 MPa, with a maximum strain of 0.03. The tensile resistance of carbon tubes is excellent.
Compared with steel pipes, the tensile strength advantage of carbon fiber pipes is very obvious, and their weight can be reduced by about 50%. However, the brittleness of carbon pipes limits their performance and application. Under impact and pressure damage, their stiffness will be severely reduced, and their lack of toughness is the biggest disadvantage of carbon fiber composite materials.
Compared with metal materials, carbon fiber composite materials have anisotropic characteristics, so defects such as delamination, tearing, and burrs are prone to occur during post-processing. So for the connection of carbon fiber pipes, we recommend using structural adhesive or punching holes with steel wire inserts for processing. In addition to ensuring the stability of the connection, it also has a very positive effect on the load-bearing capacity of carbon fiber products.
It is precisely because of the excellent properties of carbon fiber that its application market is constantly expanding. Before customizing carbon fiber pipes and other carbon fiber products, you can consult our staff first. They can provide a quotation according to your requirements to help you quickly determine the customization cost of carbon fiber pipes.
Regarding the hardness of carbon fiber tubes
Carbon fiber precursor is obtained by pre oxidation and carbonization of other fibers, while carbon nanotubes are formed by extruding and winding precursor fibers. The surface of the extruded tube has no texture, which is relatively less commonly used. The wrapped tube can be made into twill or plain weave tubes according to different processes, with a beautiful appearance. Carbon fiber pipes have a wide range of applications, including fishing rods, rackets, golf clubs, sailboat masts, flagpoles, and can also be made into mechanical components, scaffolding, etc.
Carbon fiber, as a new type of artificially synthesized material, is essentially an inorganic polymer fiber with a carbon content higher than 90%. From a microscopic perspective, carbon fiber resembles artificial graphite and has a disordered graphite structure. And carbon fiber, a synthetic material, also fully inherits the mantle of carbon elements. Generally, after high-temperature graphitization treatment at 3000'C, the density can reach 2.0 grams/cm3. In addition, it is very lightweight, with a specific gravity less than aluminum, less than 1/4 of steel, and a specific strength 20 times that of iron. Due to its light weight, high rigidity, heat resistance, and corrosion resistance, it has received widespread attention in both military and civilian applications and is known as the king of new materials,
The hardness of carbon fiber tubes is mainly derived from epoxy resin. Composite materials will wrap the fibers, whether they are carbon fiber, aramid fiber, or glass fiber. For example, the Mohs hardness of glass is 6.5-7, but composite materials made of fiberglass cannot be judged by the Mohs hardness of fiberglass, which is determined by epoxy resin with lower hardness, and the same principle applies to carbon fiber. If you want to improve the hardness of the product, you can choose epoxy resin with higher wear resistance and strength. The highest hardness can increase the Babbitt hardness of the epoxy system from 45 to 65-70.
The above is an interpretation of the knowledge about the hardness of carbon fiber tubes. In terms of improving product performance, carbon fiber tubes can be chosen to replace traditional metal pipes, gaining better performance advantages and enhancing product competitiveness. If you have customization needs for carbon fiber pipes, you can also directly contact our technical team, and we can provide customized services based on drawings.