Carbon fiber is an excellent composite material with high heat resistance, high compressive strength, large elastic mold, and light weight. It generally chooses organic chemical fiber pioneer body to carry out anti-aging solutions, and then carbonizes at a high temperature above 1000 ℃ and a plasticity maintenance atmosphere to become a carbon fiber with a six-membered ring carbon structure
Carbon fiber is an excellent composite material with high heat resistance, high compressive strength, large elastic mold, and light weight. It generally chooses organic chemical fiber pioneer body to carry out anti-aging solutions, and then carbonizes at a high temperature above 1000 ℃ and a plasticity maintenance atmosphere to become a carbon fiber with a six-membered ring carbon structure. Such carbon fiber has a high compressive strength but is not yet a detailed graphite structure. It must be further resolved through 2800℃-3000℃ in a protective atmosphere to improve the orderliness of the structure. The crystal grows into a high-purity graphite fiber. The elastic mold of the fiber is further improved.
Let's talk about the five links in the production of carbon fiber in detail with everyone.
1. Brushed metal. There are three methods for metal wire drawing: wet, dry or molten.
2. Split yarn. The yarn dividing temperature is around 100℃~300℃, and the carbon fiber content is important in this process.
3. Pre-air oxidation. The temperature of pre-air oxidation is 400°C, which allows hydrogen bonds to be generated inside the molecular structure and improves heat resistance.
4. Carbonization. The carbonization temperature should be higher, between 1000℃~2000℃, the purpose is to release other impurities in the fiber.
Quality, make the composition of oxygen atoms higher. It is generally carried out in rare gases.
5. Graphitization. The graphitization temperature should be higher, around 2000℃~3000℃, to further remove impurities in the fiber and make it change into a more stable structure.