Extruded graphite is primarily used in high-temperature applications due to its thermal stability, corrosion resistance, and resistance to thermal shock. It finds applications in various industries including automotive, aerospace, semiconductor, and chemical industries.
High-Temperature Applications: Extruded graphite maintains its dimensions and stability even at temperatures up to 5000°F, making it ideal for high-temperature applications. This property is crucial in industries where components are exposed to extreme heat, such as in furnaces, where graphite is used for insulation and as a heating element.
Corrosion Resistance: The material's excellent corrosion resistance makes it suitable for use in harsh chemical environments. In the chemical and petrochemical industries, extruded graphite is used in reactors and heat exchangers where it can withstand aggressive substances without degradation.
Thermal Shock Resistance: Extruded graphite's resistance to thermal shock allows it to be used in applications where rapid temperature changes occur, such as in the aerospace industry. For example, it is used in the leading edges of the Space Shuttle orbiter to protect against the intense heat generated during re-entry into the Earth's atmosphere.
Automotive and Recreational Applications: In the automotive sector, extruded graphite is used in brakes, clutch facings, and mechanical seals due to its durability and resistance to wear. It is also used in recreational products like kite frames, tent frames, and fishing rods, showcasing its versatility and strength.
Electrical Applications: Extruded graphite is also used in the production of lithium-ion batteries, which are essential for powering small electronic devices, laptops, tools, and electric cars. Its low specific resistance and high purity make it an excellent conductor of electricity, enhancing the efficiency of these batteries.
Industrial Processes: In industrial processes, extruded graphite is used as electrodes in electric discharge machining (EDM) and in the production of aluminum where it serves as roughing electrodes. Its precise machining capabilities and high strength make it ideal for these applications.
Overall, extruded graphite's unique properties make it indispensable in numerous high-tech and industrial applications, demonstrating its versatility and importance across various sectors.
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