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Industry dynamic
Production process of carbon fiber
2021-09-13 11:56:05 visits:520
Carbon fiber is an inorganic fiber with carbon content higher than 90% formed by cracking and carbonization of organic fiber at above 1000 ° C. carbon fiber is black. It has light weight and high strength. At the same time, it has many excellent properties such as easy molding, corrosion resistance and high temperature resistance. It has been widely used in military industry, aerospace, sporting goods, automobile industry and many other fields. Carbon fibers are classified according to mechanical properties and tow size, such as high modulus type, medium modulus type and standard modulus type; Large tow and small tow types.
Carbon fiber can be made by carbonizing polyacrylonitrile fiber, asphalt fiber, viscose fiber or phenolic fiber. The most commonly used carbon fibers are polyacrylonitrile carbon fiber and asphalt carbon fiber. High performance carbon fibers are basically produced by polyacrylonitrile fibers. The production of polyacrylonitrile based carbon fiber mainly includes two processes: raw silk production and raw silk carbonization. The production process of raw silk mainly includes polymerization, degassing, metering, spinning, stretching, washing, oiling, drying and receiving. The carbonization process mainly includes wire feeding, pre oxidation, low-temperature carbonization, high-temperature carbonization, surface treatment, sizing and drying, winding and winding.
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