Hybrid composite energy absorbing part for automobile and manufacturing method thereof

An energy absorption and composite material technology, which is applied in the field of aramid fiber hybrid reinforced three-dimensional structure energy absorption parts and carbon fiber, which can solve the problems of unsatisfactory, heavy weight, and unsatisfactory energy absorption performance of metal energy absorption parts, so as to reduce damage. , high energy absorption, high modulus effect

Inactive Publication Date: 2014-03-26
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention aims to solve the problems of unsatisfactory energy absorption performance, heavy quality, and failure to meet the requirements of safety, light weight, energy saving and environmental protection of the existing metal energy absorbing parts for vehicles.

Method used

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  • Hybrid composite energy absorbing part for automobile and manufacturing method thereof
  • Hybrid composite energy absorbing part for automobile and manufacturing method thereof
  • Hybrid composite energy absorbing part for automobile and manufacturing method thereof

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Experimental program
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Embodiment

[0028] 1. Raw materials

[0029] Epoxy resin (Mitsubishi Chemical Corporation, 308A3801); aramid fiber; carbon fiber.

[0030] 2. Production method

[0031] 2.1 soak the aramid fiber and carbon fiber into the epoxy resin matrix for later use;

[0032] 2.2 Wrap the aramid fibers, carbon fibers, and aramid fibers prepared in step 2.1 on the mandrel in sequence to form the first aramid fiber layer 4, the carbon fiber layer 5, and the second aramid fiber layer 6 respectively to form a hybrid composite energy Absorbing part 2'; with the axial direction of the tube axis of the mandrel as 0°, the winding angle of the aramid fiber is controlled to be 88°, and the winding angle of the carbon fiber is 17.6°; when winding, the first aramid fiber layer 4 and the carbon fiber layer 5 , The thickness ratio of the second aramid fiber layer 6 is 1:10:2.5; the ratio of the tube wall thickness to the inner tube diameter of the energy absorbing component 2' is 1:22.

[0033] 2.3 The hybrid co...

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Abstract

The invention discloses a hybrid composite energy absorbing part for an automobile and a manufacturing method thereof. The hybrid composite energy absorbing part is round and tubular and comprises a first aramid fiber layer, a carbon fiber layer and a second aramid fiber layer. The manufacturing method of the hybrid composite energy absorbing part for the automobile comprises the steps that aramid fibers, carbon fibers and aramid fibers are wound around a core mold in sequence, and the first aramid fiber layer, the carbon fiber layer and the second aramid fiber layer are formed respectively, wherein base materials are infiltrated in the aramid fibers, the carbon fibers and the aramid fibers respectively; the core mold is removed after the wound energy absorbing part is well solidified. The hybrid composite energy absorbing part for the automobile and the manufacturing method thereof have the advantages that the development requirements for light weight and safety of the automobile are met, the process route is reasonable, the treatment technology and the treatment method are low in cost, high in cost performance and high in safety performance, and the hybrid composite energy absorbing part for the automobile and the manufacturing method thereof conform with the development direction of lower energy consumption and low pollution and comply with the development tendency of energy saving, emission reduction and environmental friendliness.

Description

technical field [0001] The invention relates to an energy absorbing component for automobiles, in particular to a carbon fiber and aramid fiber hybrid reinforced three-dimensional structure energy absorbing component. Background technique [0002] According to official statistics, since the late 1980s, China has ranked first in the world in the number of road traffic accidents, the number of deaths, and the death rate per 10,000 vehicles. In 2009, China's car ownership accounted for about 3% of the world's total, while the number of traffic accident deaths accounted for 16%. It is imminent to improve the safety of transportation vehicles. [0003] There are currently two types of components in vehicles for occupant protection during collisions: highly rigid frames and cushioning high energy absorbing components. High-rigidity materials, such as bumpers and body frames, mainly provide sufficient physical safety space for the occupants in the event of a vehicle collision, so ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R19/18B32B1/08B32B27/02B32B27/12B32B33/00
Inventor 阳玉球马岩张前锦杨佳慧于利超刘夏慧徐芝兰孔徐洁肖冰
Owner DONGHUA UNIV
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