Why hasn't carbon fiber been fully covered on rail transit?

With the increasing application of carbon fiber composite materials, it is well known that carbon fiber composite materials have very high strength properties, and there are cases where carbon fiber products are used in many industries, where rail transit is relatively common. An industry that has received unanimous praise.

An important reason why carbon fiber composite materials are applied to the rail transit industry is that it has a great relationship with the overall light weight of carbon fiber products produced by this material, which can greatly reduce the weight of rail transit vehicles. The research is divided into two directions, one is lightweight design, and the other is the use of lightweight materials. At present, the lightweight design of aluminum alloy has reached the bottleneck, and further weight reduction will inevitably affect other properties. So far, carbon fiber composite materials have become a new choice for people.

Nowadays, the more popular high-speed trains, in order to ensure safety, the entire body is made of stainless steel, and other parts are mostly made of aluminum alloy, just to meet the performance of weight reduction, but the weight of each model is still very high. It is heavy and requires more energy consumption. After the carbon fiber material products are applied to the high-speed rail, the self-weight of the vehicle will be lower. According to the law of energy conservation, the mass will be lighter, and the energy consumption of the motor vehicle will be reduced. Lower, and the inertia of the vehicle is also lower, the vehicle starts and stops more quickly, including the reduction of the weight, the wear of the axle wheels will be reduced, and the service life will be longer.

In addition to light weight, carbon fiber products have extremely high strength. In the application of rail transit products, better performance cushions can be prepared, which greatly improves the safety of high-speed rail vehicles. A series of performances have a good performance, so that carbon fiber products have a presence in rail transportation.

The performance of carbon fiber materials is so good, but there are many reasons why high-speed rail is still not fully used carbon fiber materials. Nowadays, more components are mainly used. This is because the price of carbon fiber materials is relatively expensive, and carbon fiber materials are relatively expensive. The mechanical properties of the material are very high, but the performance in the actual verification of such a product cannot be analyzed in batches for actual combat applications.

Then, in rail transit, high-speed rail products often require vehicle inspection. Sometimes it is necessary to remove the car paint and then inspect the cracks. If carbon fiber materials are used, the entire maintenance cycle cannot be determined. There may be certain security risks. Therefore, at this stage, the application of carbon fiber products to rail transit high-speed rail products is mainly based on parts and components.