Carbon fiber, as a new type of high-tech material, has higher application cost than traditional metal materials, but it has special significance in improving product performance and accelerating industrial upgrading. The State Council issued the "Notice on Made in China 2025" which clearly proposed high-end CNC machine tools and robots, aerospace equipment, marine engineering equipment and high-tech ships, advanced rail transportation equipment, energy-saving and new energy vehicles, power equipment, agricultural machinery equipment, In key development areas such as medicine and high-performance medical devices, carbon fiber materials have different forms of application in these areas.
1. High-end CNC machine tools and robots
The manufacturing strategy of Made in China 2025 regards precision, high speed, high efficiency, flexible CNC machine tools and basic manufacturing equipment and integrated manufacturing systems as the key tasks of high-end CNC machine tools, requiring the robot industry to accelerate the market to meet the needs of the market , Chemical, light industry and other industrial robots, special robots, and medical robots, home services, education and entertainment and other service robots, increasing demand.
Machine tool parts such as rollers and gears made of carbon fiber have great value space in terms of dynamic balance, starting and stopping speed, reducing energy consumption and service life, and have become an important part of high-end machinery actively exploring and realizing product replacement Way and direction. The application of new materials in these robot industries, such as carbon fiber manipulators and carbon fiber mechanical joints, allows the robot to largely get rid of the disadvantages of excessive weight, and the use of carbon fiber materials with small creep to ensure a large temperature difference environment The stable working state has gained a higher level of application potential in lighter and stronger advantages.
2. Aerospace equipment
Accelerating the development of large aircraft, developing advanced airborne equipment and systems, forming an independent and complete aviation industry chain, developing a new generation of launch vehicles, heavy-duty vehicles, enhancing the ability to enter space, and promoting the transformation of aerospace technology and the application of space technology are China ’s overall strategy for 2025 manufacturing The overall goal proposed for the aerospace equipment industry.
Carbon fiber reinforced resin matrix composites are important materials for the production of weapons and equipment. In fighter planes and helicopters, carbon fiber composite materials are used in the fighter main structure, secondary structural parts and special functional parts of fighter special parts. The use of carbon fiber / epoxy and carbon fiber / double-horse composite materials abroad in the fighter fuselage, main wing, vertical tail, flat tail and skin, etc., has played a significant role in reducing weight and greatly improved fatigue resistance and corrosion resistance. The data shows that the front fuselage section with a composite material structure can reduce the mass by 31.5%, reduce the parts by 61.5%, and reduce the fasteners by 61.3% compared to the metal structure. The vertical stabilizer of the composite material can reduce the mass by 32.24%.
High-modulus carbon fiber is lightweight, rigid, dimensionally stable and thermally conductive, so it has long been used in artificial satellite structures, solar panels and antennas. Today, the deployment of solar panels on artificial satellites are mostly made of high-modulus carbon fiber composite materials, and some key components on the space station and the round-trip transportation system often use high-mode carbon fiber composite materials as the main material.
3. Marine engineering equipment, high-tech ships
The "Notice" calls for the vigorous development of deep-sea exploration, resource development and utilization, marine operations support equipment and its key systems and special equipment. Carbon fiber material has become an indispensable material for deep sea exploration and deep sea oil field gas development. Carbon fiber umbilical tube reinforcement rods, mooring mooring lines, oil production risers, flexible risers and other structural parts are increasingly used on deep sea oil platforms.
The production depth of oil and gas fields is generally more than 3000m and the exploration depth is more than 4000m. The design of oil and gas field structural parts must meet the 25-year maintenance-free standard. The relevant materials for traditional offshore oil and gas fields are steel materials, such as the mooring line that anchors the platform to the seabed and the pipeline cable that connects the wellhead to the platform. The weight of steel ropes and pipes increases the floating size of the platform and increases energy consumption. Steel materials are also extremely corrosive under seawater immersion, with a working life of only two to three years, and periodic maintenance and pipe maintenance costs are extremely high. In contrast, the performance of carbon fiber material has obvious advantages. For example, a 1500m water depth working platform, steel rope weighs about 6000t, and the quality of carbon fiber composite material is only 1,000t. In addition, its high strength, high modulus, excellent fatigue resistance and corrosion resistance make its working life more than 25 years, greatly reducing maintenance costs. In high-tech ships, the application of carbon fiber materials is also gradually developing, such as the development and utilization of carbon fiber ship structural parts such as carbon fiber bow side watertight cover plates, which have a significant impact on the speed and energy consumption of ships.
4. Advanced rail transportation equipment
China's 2025 manufacturing strategy will accelerate the application of new materials, new technologies and new processes, focus on breakthroughs in systematic safety guarantees, energy conservation and environmental protection, digital and intelligent networking technologies, and develop advanced and reliable products and lightweight, modular, and pedigree products As the main way to develop a new generation of green intelligent, high-speed heavy-duty rail transportation equipment system and establish the world's leading modern rail transportation industrial system.
Carbon fiber materials can perfectly interpret the two concepts of "energy saving and environmental protection" and "lightweight". The car body structural parts such as the head cover seat frame and bogie in rail vehicles and the wall panels, roof panels, partition walls, seat frames, driver's platform, etc Carbon fiber composite materials can be used for the interior parts, and the weight is reduced. While achieving a significant weight reduction of the car body, it reduces fuel use and exhaust emissions, and increases vehicle speed. The high strength, high tensile load and minimal deformability of the material itself also ensure the safety of the car body to a certain extent. However, the interior of the car body is a closed space. Under high-speed operation, the internal environment of the car body places higher requirements on the structural materials and interior materials of the car body. In order to further meet the needs of rail transportation equipment for vehicle body safety, Wuxi VIA New Material Technology Co., Ltd. has developed high-temperature resistant and flame-retardant carbon fiber composite materials specifically for the operation of high-speed rail and other rail vehicles. At the same time, it has the advantages of corrosion resistance, radiation resistance, damp heat resistance, etc., while improving the wear resistance, toughness and wave permeability of the composite material. When it encounters high temperature or fire accidents, it can achieve low smoke, low toxicity and low heat release Performance, greatly improving the safety and stability of rail transit vehicles. By promoting the application of carbon fiber in rail vehicles, China's high-speed rail will add more horsepower to the world.
5. Energy-saving and new energy vehicles
The development of electric vehicles and fuel cell vehicles will continue to be supported in the 2025 strategic route made in China. The strategy requires it to use a more complete industrial system and innovation system to promote the integration of independent brand energy-saving and new energy vehicles with the international advanced level.
On the basis of inheriting the active application of carbon fiber in traditional vehicles, new energy vehicles must have greater application intensity, because they have stronger needs in reducing their own weight, solving energy consumption, reducing charging frequency, and extending battery life, especially In terms of reducing pollution and energy consumption, this is also the value and significance of new energy vehicles different from traditional vehicles. Under this circumstance, strict vehicle fuel economy standards and carbon dioxide emission regulations formulated by the government have prompted new energy vehicles to choose carbon fiber composite materials. The weight of electric vehicles is more than 200-300 kg than traditional cars. In order to ensure the better driving range and affordable cost of electric vehicles, the weight of electric vehicles must be reduced by more than 50%. Among all lightweight materials, carbon fiber composites are the only materials that can replace steel components, reduce weight by 50-60%, and provide advanced materials with the same strength.
In addition to appearance coverings, bogies, carriages, interiors, equipment compartments, friction materials, battery boxes, etc. all belong to the application range of carbon fiber composite materials. Among the carbon fiber structural parts provided by Wuxi VIA New Material Technology Co., Ltd. for new energy vehicles, the carbon fiber energy absorption box, anti-collision beam and battery box body are relatively typical applications. For example, a carbon fiber with a volume of about 35L and a wall thickness of 2mm The battery box weighs only 2.7kg, which is about 80% lighter than the battery box made of traditional steel structure. The strength and load capacity are better than the traditional sheet metal parts. A carbon fiber composite material low-speed energy absorption box with a net weight of only 463 grams. The weight of the entire member is 60% -80% lower than that of the original metal material. The energy absorption rate in the face of impact is very high, even compared to steel, aluminum, etc. The material should be more than 4 times higher. The high-strength characteristics of carbon fiber composite materials make it strong in resisting and transmitting impact loads, so it is very suitable for the parts where automobiles are prone to impact.
6. Electric equipment
According to the notification spirit of Made in China 2025, the development of new energy and renewable energy equipment, advanced energy storage devices, power transmission and transformation for smart grids, and user-side equipment will be vigorously promoted. In terms of renewable energy equipment, carbon fiber is widely used as a blade for wind power generation. Its high strength and light weight are ideal materials for wind power generation.
In terms of advanced energy storage devices, flywheel energy storage is a new type of green energy storage technology that converts electrical energy to a high-speed flywheel. When needed, it is converted to the required electrical energy by a generator. When not needed, the flywheel still does High-speed operation will not generate any chemical material waste during use and maintenance. Can charge and discharge countless times, the service life is very long. Carbon fiber materials with light weight and high strength are of great significance to energy storage flywheels. At present, there are many developments and utilizations of carbon fiber energy storage flywheels at home and abroad.
In terms of power transmission and transformation for the smart grid and user-end equipment, the State Grid is promoting the application of a substation inspection robot for intelligent work in the country. The robot uses an independent charging method, which can run for 5-6 hours on a full charge. Each charge requires at least two rounds of comprehensive inspections on the device, and each round of inspections requires at least 2 hours. The electric energy should be used as much as possible for testing operation. In order to ensure that the robot can withstand high-intensity work for a longer time, this inspection robot uses a retractable carbon fiber sleeve robot arm, which is composed of 7 different types of arm tubes from wide to narrow, and the wall thickness ranges from It ranges from 0.5mm to 2mm, and the total weight is only 3KG, which greatly reduces the energy consumption of the robot during inspection, thereby extending the working time and improving the working efficiency. In addition, the carbon fiber material has good corrosion resistance and fatigue resistance, and it can maintain a small creep under a large temperature difference. Therefore, this inspection robot can be fully applied to high altitude, extreme heat, extreme cold, strong wind, Distribution stations in harsh environments such as dust and rain.
7. Agricultural machinery and equipment
The Made in China 2025 strategy requires the focus on the development of advanced agricultural machinery and equipment used in major production processes such as bulk food and strategic economic crop breeding, cultivation, planting, management, harvesting, transportation, storage, etc. Agricultural machinery equipment information collection, intelligent decision-making and precision operation capabilities.
As a major agricultural country, how to concentrate and effectively detect the growth of crops and spray pesticides is one of the problems that high-end agricultural equipment is actively solving. It has the advantages of saving pesticide use, high operating precision, and good control effects. The agricultural plant protection machine can be operated by remote control. This method helps spray workers avoid direct contact with pesticides, improves the safety of spray operations, and reduces resource costs to a large extent in a more precise manner. The drone used for agricultural monitoring can timely and accurately grasp the growth of crops and provide reliable information for agricultural measures.
Carbon fiber composite materials such as carbon fiber paddles, carbon fiber casings, and carbon fiber wall tubes have become mainstream materials for the manufacture of unmanned plant protection machines. Carbon fiber material with a specific gravity of only one-quarter of steel has good flexibility and high specific strength, but its tensile strength is more than 10 times that of ordinary steel. It has excellent creep resistance and shock resistance, and has good durability and resistance. Corrosion has a certain tolerance to acid, alkali, salt and atmospheric environment corrosion, which can effectively extend the service life of the drone.
8. High-performance medical devices
As the focus of national economy and people's livelihood, the medical device industry has become one of the key points of China's manufacturing 2025 strategy. It emphasizes that it is necessary to improve the innovation capability and industrialization level of medical devices, focusing on the development of high-performance diagnostic equipment and medical products such as imaging equipment and medical robots.
With the increasing number of cancer patients worldwide, the demand for radioactive medical equipment has risen rapidly. With the development of technology, radioactive diagnostic and therapeutic equipment has gradually moved closer to the direction of small radiation dose and digitalization of imaging analysis. The use of the equipment requires that the relevant accessories have good X-ray transmission performance. Under the premise of satisfying the use, the harm of radioactive materials to patients and medical personnel is reduced as much as possible. At the same time, the strength and durability of these accessories also need To meet the high-frequency requirements of the equipment, it must meet the standard parameters of high-standard medical equipment in terms of quality, hygiene, reliability and accuracy. Carbon fiber composite materials have excellent performance that meets the above requirements. Therefore, carbon fiber radioactive headrests, bed panels, radiotherapy positioning racks, breast machine support plates, DR flat panel detectors and other carbon fiber medical devices and diagnostic equipment have been more and more clinically obtained. The more applications.