Automobile anticollision structure part and preparation method thereof

A technology for structural parts and anti-collision, applied in the direction of bumpers, etc., can solve the problems that pure carbon fiber materials cannot be welded and connected, unfavorable for the lightweight design of the whole vehicle, and the separation and separation of anti-collision structural parts, etc., to achieve a wide range of use and light weight , The effect of reducing the cost of the vehicle

Active Publication Date: 2015-03-11
CHERY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current anti-collision structural parts of automobiles are basically made of high-strength metal materials or alloy materials. Poor corrosion, seriously affecting service life
At present, there are also proposals to directly use carbon fiber materials as automotive anti-collision structural parts, but the current application of carbon fiber materials to replace metal materials in automotive anti-collision structural parts has the following technical problems: the strength and elongation of carbon fiber materials as anti-collision structural parts Low, poor...

Method used

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  • Automobile anticollision structure part and preparation method thereof
  • Automobile anticollision structure part and preparation method thereof
  • Automobile anticollision structure part and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0039] The preparation of the automobile anti-collision beam comprises the following steps:

[0040] (1) Put the 3K T700 unidirectional fabric carbon fiber into the mold that has been cleaned and treated with a release agent according to the layup sequence of [0 / 45 / -45 / 90], where the fiber orientation parallel to the direction of force is determined as 0 degree ply orientation, close the mold, and keep warm at 65°C for 30 minutes;

[0041] (2) Use as attached image 3 The shown RTM equipment heat-compresses the thermosetting resin and the carbon fiber material layer to make the resin fiber composite material component. image 3 As shown, the RTM equipment includes a glue storage tank, a resin tank, a curing agent tank, a mixing gate and a transmission pipeline, and the described glue storage tank, resin tank and curing agent tank are connected to the mixing gate through a transmission pipeline , the glue outlet of the mixed pouring port is facing the pouring port of the unid...

example 2

[0045] Adjust the unidirectional fabric lay-up scheme in the above-mentioned embodiment one to [0 / 45 / -45 / 90] 2s , with all other steps unchanged, the weight of the obtained automobile anti-collision beam is about 15.9% lower than that of the all-aluminum anti-collision beam.

example 3

[0047] Adjust the unidirectional fabric lay-up scheme in the above-mentioned embodiment one to [0 / 45 / -45 / 90 / 45 / -45 / 0] s , with all other steps unchanged, the weight of the obtained automobile anti-collision beam is about 17.1% lower than that of the all-aluminum anti-collision beam.

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Abstract

The invention provides an automobile anticollision structure part and a preparation method thereof. The preparation method comprises the following steps: paving and superposing a carbon fiber material and performing thermocompression combination on the carbon fiber material and a resin material so as to form a resin-fiber composite material component; then fixedly connecting the resin-fiber composite material component with a metal material component so as to obtain the automobile anticollision structure part which not only comprises the carbon fibre material, but also comprises a metal base layer, not only preserves the advantages such as high strength and high tenacity of the metal anticollision component and meets the welding connection requirements of the anticollision structure part and body structure part, but also fully utilizes the advantages such as low density, light weight, excellent specific modulus and specific strength, high corrosion resistance and high modality of the carbon fiber material. The obtained automobile anticollision structure part has the unique advantages of light weight, high strength, corrosion resistance, excellent energy absorption capability and no possibility of falling from an automobile body when collided at a middle-low speed, is more beneficial to NVH control in an automobile running process, can be used for promoting extensive application of the carbon fiber material in automobile parts and has wide market prospect.

Description

technical field [0001] The invention belongs to the field of automobile parts manufacturing, and in particular relates to the design and preparation of automobile anti-collision structural parts, in particular to the automobile anti-collision structural parts containing carbon fiber materials and a preparation method thereof. Background technique [0002] Lightweight has become the trend of the world's automobile development. Automobile lightweight is to reduce the curb weight of the automobile as much as possible under the premise of ensuring the strength and safety performance of the automobile, so as to improve the power performance of the automobile, reduce fuel consumption, and reduce exhaust pollution. Carbon fiber composites are an option for lightweighting vehicles. With the reduction of carbon fiber cost and the improvement of processing technology, the application of carbon fiber composite materials in automobiles has gradually shifted from racing cars and luxury ...

Claims

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Application Information

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IPC IPC(8): B60R19/03
CPCB60R19/03
Inventor 宣善勇张道理张静方舟唐少俊
Owner CHERY AUTOMOBILE CO LTD
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