Aerospace & Defense

Graphite products, with their unique physical and chemical properties such as high-temperature tolerance, chemical stability, good electrical conductivity, and thermal conductivity, play a crucial role in the aerospace and defense fields. Here are some specific applications:

Aerospace Field

  1. Aircraft Engine Components: Aircraft engines generate extremely high temperatures during operation, requiring components with excellent high-temperature and chemical stability. Graphite products can meet these requirements and are commonly used to manufacture key components such as seals, bearings, and turbine blades for aircraft engines. For example, graphite seals can maintain good sealing performance under high-temperature and high-pressure conditions, preventing the leakage of gases and liquids inside the engine and ensuring its normal operation.

  2. Thermal Management and Heat Dissipation Systems: Spacecraft face extreme temperature environments in space and require effective thermal management and heat dissipation systems to ensure the normal operation of equipment. With its high thermal conductivity, graphite is an ideal heat dissipation material in spacecraft thermal management systems and can be used to manufacture heat dissipation devices and thermal protection layers. For instance, graphite heat sinks can rapidly dissipate the heat generated inside the spacecraft, preventing equipment damage due to overheating.

  3. Electronic and Electrical Systems: In the electronic and electrical systems of the aerospace field, the electrical conductivity of graphite plays a significant role. It can be used as battery anode materials, conductive agents, and electromagnetic shielding materials, among others. For example, as a battery anode material, graphite has a relatively high specific capacity and good charge-discharge performance, providing stable power support for aerospace equipment; graphite conductive agents can enhance the electrical conductivity of batteries and improve battery performance; graphite electromagnetic shielding materials can effectively shield electromagnetic interference and protect the normal operation of electronic equipment.

  4. Heat Treatment and Processing Equipment: Graphite materials are also used to manufacture high-temperature furnaces and processing equipment, such as vacuum furnaces. These devices are crucial in processes such as heat treatment, vacuum casting, and electron beam welding of spacecraft components. The high-temperature resistance and chemical stability of graphite enable it to maintain structural stability in high-temperature environments, ensuring the smooth progress of processing.

  5. Rocket Nozzles: Rocket nozzles experience extreme temperature variations during flight, with temperatures reaching over 3,500 degrees Celsius. This places extremely high demands on the heat resistance of materials. Traditional materials such as copper alloys and tungsten alloys are prone to deformation or loss of mechanical strength at high temperatures, while the high melting point (approximately 3,652 degrees Celsius) and good thermal stability of graphite make it an ideal material for manufacturing rocket nozzles.