Carbon fiber needle punched preform is a kind of C/C composite material preform. The forming process of the acupuncture preform is to use the fiber mesh as the raw material for acupuncture, and use a special needle with barbed barbs for acupuncture to form a quasi-three-dimensional network structure reinforcement with a certain strength in the plane and between the layers. . Acupuncture preforms overcome the weak interlayer strength of 2D preforms, and at the same time overcome the weaknesses of complex processes and high costs of 3D woven preforms. Preform forming technology.
Mainly used in：
Aerospace
