An energy absorption box for an automobile anti-collision beam formed from a composite material consists of a box body made of long fiber-reinforced thermoplastic composite material and front and rear mounting plates made of continuous fiber-reinforced thermoplastic composite material. The box body is an approximate cube composed of a plurality of closely arranged hollow hexagonal prisms. The front and rear mounting plates are fixed to the front and rear ends of the box body respectively, and the axial direction of each hollow hexagonal prism is perpendicular to the rear mounting plate. The present invention also provides a preparation method of the energy absorption box. The beneficial effects of the present invention are as follows: 1. On the premise of ensuring the performance of the energy absorption box, the whole energy absorption box replaces metal materials with non-metallic composite materials, achieving a remarkable lightweight effect; 2. All thermoplastic resin-based composite materials are adopted, enabling 100% recycling of waste and defective products; 3. All hot pressing, extrusion and welding processes can be automatically molded with high molding efficiency.
Area Code: CN
Application Number: CN201910571170.8
