Novel automobile energy absorption box and preparation method thereof

Abstract

The invention discloses a novel automobile energy absorption box which comprises core bodies and a wrapping layer, wherein each core body is obtained by rolling composite unidirectional carbon fiber prepreg cloth into a cylinder; the composite unidirectional carbon fiber prepreg cloth is formed by stacking and curing 6-12 layers of unidirectional carbon fiber prepreg cloth; the wrapping layer is formed by stacking and curing 6-12 layers of unidirectional carbon fiber prepreg cloth; the wrapping layer wraps and fixes at least two or more core bodies; and the adjacent core bodies are tightly attached to each other. The novel automobile energy absorption box is prepared by carrying out vitrification heat treatment through a three-stage heating method. The novel automobile energy absorption box is prepared through the process routes of cutting, laying, vacuumizing, hot pressing, vitrifying, polishing, slotting and the like, an existing automobile energy absorption box can be partially or completely replaced, and the problems that an automobile energy absorption box is low in specific energy absorption, large in weight, poor in energy absorption capacity, too high in cost and the like are solved.

Description

technical field [0001] The invention belongs to the technical field of auto parts, and in particular relates to a novel automobile energy-absorbing box and a preparation method thereof. Background technique [0002] With the progress of the times, cars have increasingly appeared in people's lives. People have also deeply realized the convenience brought by cars, and more people have begun to choose cars for travel. However, with the popularization of automobiles, people pay more attention to the safety factor, especially the anti-collision safety performance of automobiles. In today's car design, the bumper system installed at the front and rear of the car is usually used to ensure that the structural frame of the car is not seriously damaged under collision, so as to ensure the safety of the passengers in the car and the safety of the car as a whole. In order to absorb the huge energy generated during the impact and reduce the damage loss, an energy-absorbing box will be ...

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Problems solved by technology

[0004] In view of the above-mentioned deficiencies, the present invention provides a new type of automobile energy-absorbing box and its preparation method, which solves the problems of low specific energy absorption, heavy weight, weak energy-absorbing capacity and high cost of existing automobile energy-absorbing boxes

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