Summary:Carbon fiber has various excellent properties of elemental carbon, such as small specific gravity, excellent heat resistance, small thermal expansion coefficient, large thermal conductivity, good corrosion resistance and electrical conductivity. At t......
Carbon fiber has various excellent properties of elemental carbon, such as small specific gravity, excellent heat resistance, small thermal expansion coefficient, large thermal conductivity, good corrosion resistance and electrical conductivity. At the same time, it has fiber-like flexibility and can be braided and wound. The best performance of carbon fiber is that its specific strength and specific modulus exceed that of ordinary reinforcing fibers. The specific strength and specific modulus of the composite material formed by it and resin are about 3 times higher than that of steel and aluminum alloy. Pipes made of carbon fiber composites have applications in many fields, which can significantly reduce weight, increase payload, and improve performance, and are important structural materials in the aerospace industry.
Because of the advantages of light weight, high rigidity, high strength, stable size and good thermal conductivity, carbon fiber composite materials have been applied to artificial satellite structures, solar panels and antennas for a long time. Nowadays, most of the unfolded solar cells on artificial satellites are made of carbon fiber composite materials.
Carbon fiber tubes also perform well in UAV applications, and can be applied to different parts of the UAV in practical applications, such as arms, racks, etc. Compared with aluminum alloy materials, the application of carbon fiber tubes on UAVs can reduce the weight by about 30%, which can improve the load capacity and endurance of UAVs. The carbon fiber tube has the advantages of high tensile strength, corrosion resistance and good shock resistance, which effectively guarantees the life of the drone.
2. Mechanical equipment
The application of carbon fiber composite materials on the robot end picker The end picker is a tooling fixture used for the transfer process in the stamping production line. The workpiece is transported. Among the many new materials, carbon fiber composite materials have the highest voice.
The specific gravity of carbon fiber composite material is less than 1/4 of that of steel, but the strength is several times that of steel. The robot end picker made of carbon fiber composite material can reduce the shaking and self-burden caused by the handling of automobile parts, and its stability can also be greatly improved.
3. Military industry
Carbon fiber has the characteristics of light weight, high strength, high modulus, corrosion resistance, fatigue resistance, high temperature resistance, thermal conductivity, good heat dissipation and small thermal expansion coefficient. Carbon fiber and its composite materials are widely used in rockets, missiles, military aircraft, individual Protection and other military fields, and the amount is increasing day by day, so that the performance of military equipment has been continuously improved. Carbon fiber and its composite materials have become important strategic materials for the development of modern defense and military weapons and equipment.
In terms of military rockets and missiles, the excellent properties of carbon fiber composite materials have also been well applied and developed, such as "Pegasus", "Delta" launch vehicles, "Trident" II (D5), "Dwarf" missiles, etc. They all use carbon fiber composite materials; the US strategic missile MX intercontinental missile and the Russian strategic missile "Topol" M missile also use advanced composite material launchers.
4. Sporting goods
Most of the traditional sporting goods are made of wood, but the mechanical properties of carbon fiber reinforced composites are much higher than those of wood. Therefore, it has been widely used in sporting goods, and its consumption accounts for almost 40% of the total consumption of carbon fiber in the world. In the field of sporting goods, carbon fiber pipes are mainly used in the following aspects: golf clubs, fishing rods, tennis rackets, badminton rackets, ice hockey sticks, bows and arrows, sailboat masts, etc.
Taking tennis rackets as an example, tennis rackets made of carbon fiber composite materials are light and strong, with high rigidity and small strain, which can reduce the deviation of the ball and the racket when they are in contact; at the same time, CFRP has good damping properties, which can extend the gut and the ball. contact time, so that the tennis ball obtains greater acceleration. For example, the contact time of a wooden racket is 4.33 milliseconds, that of a steel product is 4.09 milliseconds, and that of CFRP is 4.66 milliseconds. The corresponding initial velocities of the ball are 1.38 km/h, 149.6 km/h, and 157.4 km/h, respectively. km/h.
In addition to the above fields, carbon fiber composite materials also appear in various fields such as rail transit, wind power, medical equipment, etc., and are widely used. more friendly.