In the field of rail transit, carbon fiber multi-axial warp knitted fabrics have become key materials for lightweight technology due to their high fiber content (up to 70% or more), high production efficiency (weaving speed of 100-200 cm/min) and excellent mechanical properties (tensile strength of more than 1000 MPa). Through multi-axial layer design, this material can realize the integrated molding of complex components, significantly reducing the assembly cost of traditional metal structures, while increasing production efficiency by more than 30% compared with traditional processes.
The environmental benefits are also outstanding. Carbon fiber components can reduce weight by 40%-60% and reduce train operation energy consumption by about 15%. Taking a light rail vehicle as an example, the body structure made of carbon fiber multi-axial fabrics can reduce weight by 300 kg and reduce carbon emissions by 20% over the entire life cycle. In addition, its fatigue resistance and corrosion resistance extend the service life of components and further reduce maintenance costs.
As rail transit develops towards high-speed and green development, carbon fiber multi-axial warp knitted fabrics will become an ideal choice for large-scale production and promote the sustainable development of the industry.