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What Are The Applications Of Carbon Fiber Composite Materials?


The brittleness of ordinary carbon-graphite products is the biggest weakness of carbon materials. Over the years, extensive and in-depth research has been carried out to improve the flexibility and mechanical strength of carbon products. Carbon fiber and its composite materials, which have been developed since the early 1960s, have received more and more attention in engineering applications due to their high specific strength, specific stiffness and other excellent properties.
 
Carbon fiber is made of natural fibers or man-made fibers that are processed and carbonized under certain conditions. If used to make composite materials, the carbon fiber also undergoes a series of surface treatments. Due to the high carbon content of polyacrylonitrile synthetic fiber, it is widely used as a raw material in industry. The raw material yarn is first used to make the fiber tow into a roll or pull it into a non-weft cloth by using a general textile machine. In order to improve the strength and elastic modulus of carbon fiber, it is often pre-oxidized before carbonization. Pre-oxidation can accelerate the polyacrylonitrile molecules to form the aromatic structure of the ring chain, so that the molecules are firmly bonded together. Then carbonization is carried out in a non-oxidizing air paper at a high temperature of 1000-1100°C. If a graphitized fiber is finally desired, it needs to be further subjected to a graphitization treatment at 2500-3000°C.
 
Carbon fiber, like ordinary carbon-graphite products, has excellent heat resistance and corrosion resistance, but the thermal conductivity maintains the characteristics of raw fiber and is relatively low. Therefore, carbon fiber is often woven into carbon cloth or carbon felt as a heat shielding material for induction furnaces and resistance furnaces. Graphitized fibers have higher thermal conductivity, and can be used as a heating element at 2500 °C in a vacuum or inert gas furnace. The graphitized fiber is woven into graphite yarn and impregnated with PTFE. It is used for the city material seal of chemical pump conveying corrosive medium. It not only has good sealing performance, but also has a long service life.
 
Carbon fiber composite materials include various products such as carbon fiber/resin, carbon fiber/metal, carbon fiber/carbon, etc. Among them, carbon fiber reinforced resin composite materials are the most widely used. The specific strength of glass fiber is similar to that of carbon fiber, but the specific stiffness is much lower. Obviously, carbon fiber/resin composite materials have better performance than glass fiber reinforced plastics. At present, carbon fiber composite materials have been widely used in industry, and their scope of use has gradually expanded in the automotive industry and atomic energy industry. Utilizing the high specific strength, high specific stiffness and excellent corrosion resistance of this material, it will undoubtedly have good application prospects as high-speed rotating parts of chemical machinery such as centrifuge drums, pump impellers or pressure vessels.

 

The brittleness of ordinary carbon-graphite products is the biggest weakness of carbon materials. Over the years, extensive and in-depth research has been carried out to improve the flexibility and mechanical strength of carbon products. Carbon fiber and its composite materials, which have been developed since the early 1960s, have received more and more attention in engineering applications due to their high specific strength, specific stiffness and other excellent properties.
 
Carbon fiber is made of natural fibers or man-made fibers that are processed and carbonized under certain conditions. If used to make composite materials, the carbon fiber also undergoes a series of surface treatments. Due to the high carbon content of polyacrylonitrile synthetic fiber, it is widely used as a raw material in industry. The raw material yarn is first used to make the fiber tow into a roll or pull it into a non-weft cloth by using a general textile machine. In order to improve the strength and elastic modulus of carbon fiber, it is often pre-oxidized before carbonization. Pre-oxidation can accelerate the polyacrylonitrile molecules to form the aromatic structure of the ring chain, so that the molecules are firmly bonded together. Then carbonization is carried out in a non-oxidizing air paper at a high temperature of 1000-1100°C. If a graphitized fiber is finally desired, it needs to be further subjected to a graphitization treatment at 2500-3000°C.
 
Carbon fiber, like ordinary carbon-graphite products, has excellent heat resistance and corrosion resistance, but the thermal conductivity maintains the characteristics of raw fiber and is relatively low. Therefore, carbon fiber is often woven into carbon cloth or carbon felt as a heat shielding material for induction furnaces and resistance furnaces. Graphitized fibers have higher thermal conductivity, and can be used as a heating element at 2500 °C in a vacuum or inert gas furnace. The graphitized fiber is woven into graphite yarn and impregnated with PTFE. It is used for the city material seal of chemical pump conveying corrosive medium. It not only has good sealing performance, but also has a long service life.
 
Carbon fiber composite materials include various products such as carbon fiber/resin, carbon fiber/metal, carbon fiber/carbon, etc. Among them, carbon fiber reinforced resin composite materials are the most widely used. The specific strength of glass fiber is similar to that of carbon fiber, but the specific stiffness is much lower. Obviously, carbon fiber/resin composite materials have better performance than glass fiber reinforced plastics. At present, carbon fiber composite materials have been widely used in industry, and their scope of use has gradually expanded in the automotive industry and atomic energy industry. Utilizing the high specific strength, high specific stiffness and excellent corrosion resistance of this material, it will undoubtedly have good application prospects as high-speed rotating parts of chemical machinery such as centrifuge drums, pump impellers or pressure vessels.

 

Cnc-Drilling-Carbon-Fiber-Service-In-China

ISO 9001 certified. BE-CU Prototype Offering CNC machining carbon fiber and other manufacturing services for carbon fiber marterial. Various capabilities include notching, labeling, drilling carbon fiber, grinding, laser cutting carbon fiber, finishing, plating, marking, CNC milling carbon fiber and turning carbon fiber.We stock high quality 3k carbon fiber sheet in a variety of thickness, types and finish. Its a great material used in applications where light weight and strength are needed such as drones. Unlike other workshops, we have no min order and are often filling orders with a single part. We also don’t make you pay for the full sheet and you only get charged for what is used. With a large selection of material, you should find everything you need to make your project come to life. We are also able to handle larger production runs and provide a competitive pricing. If we don’t have the material or finish you require, we are more the willing to look at bringing it in for you.

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