An article to understand the application of carbon fiber in the field of rail transit

Relevant data show that by 2025, the mileage of China's high-speed rail will exceed 38,000 kilometers, and there will be more than 2,500 high-speed trains in service. The energy saving, environmental protection, comfort and convenience of trains have become the future development direction of high-speed trains. Because of its excellent performance, carbon fiber has attracted more and more attention and adoption by rail vehicle development enterprises, and has huge development potential. Image source: Internet public information Compared with traditional lightweight materials, carbon fiber composite materials have low density, high strength and high modulus, and are suitable for use as lightweight and environmentally friendly materials for rail transit. Comparative analysis of the performance of carbon fiber composite materials and other lightweight materials Source: 'Application Research of Carbon Fiber Composite Materials for High-speed EMUs' Due to the limited lightweight space for on-board equipment, the application of carbon fiber composite materials in rail transit is mainly concentrated in the body and interior decoration. . Source of weight distribution ratio of subway vehicles: 'Application of Carbon Fiber Reinforced Composites in Rail Vehicles' Application Advantages of Carbon Fiber Composite Materials in Rail Transportation Application Advantages of Carbon Fiber Composite Materials in Rail Transportation Application Source: 'Application of Carbon Fiber Materials in Rail Transportation Industry Analysis of the Application Difficulties of Carbon Fiber Composite Materials in the Field of Rail Transportation Specific application examples of transportation The application of carbon fiber composite materials has gradually developed from very load-bearing structural parts such as car body interiors and in-vehicle equipment to load-bearing components such as car body and frame, from parts such as skirts and shrouds to roofs, drivers The development of large-scale structures such as rooms and vehicle bodies. Application and distribution of carbon fiber composite materials in the field of rail transit Application of carbon fiber composite materials in the field of rail transit Patent analysis of carbon fiber composite materials in the field of rail transit Source: 'Application of carbon fiber composite materials in rail vehicles from the perspective of patent analysis' 2009 Since then, the number of patent applications has increased significantly, which is attributed to the rapid development of the application of carbon fiber composite materials in the field of rail transportation. Comparison of domestic and foreign patents of carbon fiber composite materials on rail vehicles Source: 'Application of carbon fiber composite materials in rail vehicles from the perspective of patent analysis' The development of domestic carbon fiber composite materials in the field of rail transit is relatively late, but the development speed is very fast . Source of patent distribution of carbon fiber composite materials in rail transportation: 'Application of carbon fiber composite materials in rail vehicles from the perspective of patent analysis' The patents of carbon fiber composite materials in rail vehicles are mainly concentrated in the car body, bogie, external equipment, There are four interiors. Among them, there are many patents for the development and application of car body and bogie.