Carbon fiber composite materials and subway buses:

As a brand-new type of public transportation, "Metro Bus" gets its name due to the same ride and operation mode as the subway. In recent years, most of the subway buses that have emerged in the domestic market have basic features such as "one-step boarding, flat floor, large passage". In addition to the advantages of high speed, convenience, comfort and safety, this kind of urban public transportation pursues low energy consumption and green environmental protection. Features. The extensive use of carbon fiber composite materials in car body materials has a very positive effect on reducing the weight of the car body. Take a carbon fiber composite subway bus recently released in China as an example. It uses 100% domestic carbon fiber composite materials. The weight and weight of the whole vehicle can be reduced by 2600-3000kg. The riding efficiency is increased by at least 50%, and the standing area for the same number of seats is increased. More than 60%, energy consumption is greatly reduced, while achieving economical and efficient operation, it has successfully achieved the goal of energy saving and emission reduction, and promoted the green and low-carbon development of the public transportation industry.

Carbon fiber composite materials and high-speed rail vehicles:

According to industry experts, if carbon fiber composite materials can be "more grounded" in terms of raw material prices and process costs, there is still considerable room for development of this high-performance advanced composite material in the application of high-speed rail. The proportion of high-speed rail applications may reach about 30%. In terms of current applications, carbon fiber composite materials can fully meet the basic requirements for strength, rigidity, and weight reduction of rail vehicle interior parts and non-main load-bearing structural parts. In most cabin parts, such as car body panels, toilets, washrooms, seats, water tanks and other parts, carbon fiber composite materials not only reduce weight, but also show more ideal fatigue and corrosion resistance advantages. With the advancement of carbon fiber material application technology, its application in high-speed rail vehicles is also expanding. Domestic carbon fiber parts manufacturer Zhishang New Materials has begun mass production of carbon fiber high-speed rail driver cockpit components, including carbon fiber driver console panels and cab assembly components, based on five years of carbon fiber high-speed rail parts production.

Carbon fiber composite materials and new energy vehicles:

For traditional fuel vehicles, for every 10% reduction in the body weight of the vehicle, the fuel efficiency of the vehicle can be increased by 6 to 8 percentage points. Experimental data proves that for every 100kg weight reduction of the vehicle, 0.3-0.6 can be saved during a 100km driving distance. L fuel consumption, carbon dioxide emissions will be correspondingly reduced by about 500g. For new energy vehicles, the significance of lightweight is even more significant, because the endurance of new energy vehicles is its current weakness. The use of carbon fiber composite materials to replace traditional metal materials is one of the most effective ways for new energy vehicles to reduce their own weight. Carbon fiber composite materials are not only light in weight and high in strength, but also their good energy absorption effect is also an important application reason. When the car is facing an impact, the carbon fiber composite material can well absorb the huge impact caused by the collision, and has a good cushioning effect, reducing the debris caused by the impact, and effectively improving the safety performance of the car.

Article source: New Material Daily

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