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Engine hood made from composite material

A technology of engine hatches and composite materials, applied in the direction of upper structure, upper structure sub-assembly, layered products, etc., can solve the problems of restricting the large-scale application of ordinary mass-produced cars and the high cost of carbon fiber materials, and achieve weight reduction, The effect of reducing fuel consumption and reducing emissions

Inactive Publication Date: 2017-11-07
CHERY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the process of realizing the present invention, the inventors found that the existing technology has at least the following problems: the cost of carbon fiber materials is high, reaching more than ten times that of ordinary steel, so it greatly limits its large-scale application in ordinary mass-produced automobiles

Method used

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  • Engine hood made from composite material
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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] see Figure 1-2 ,

[0023] The carbon fiber is made of Dalian Xingke 3K twill fabric, (the layering method is one layer of carbon fiber plus one layer of glass fiber, the outermost layer 1 or two are carbon fiber layers, there are eight layers of carbon fiber layers, seven layers of glass fibers, and the sequence of carbon fiber layers is 0 / 90 / 0 / 90 / 0 / 45 / -45 / 0), the resin is Momentive R135 epoxy resin, the curing agent is Momentive H1366, and the car carbon fiber hood outer panel and glass fiber are made by vacuum hot pressing The inner panel (7 layers in total) is glued with polyurethane adhesive to obtain the hair cover 1;

Embodiment 2

[0025] The carbon fiber is selected from Dalian Xingke 3K twill fabric, (the layering method is 0 / 45 / 90 / 45 / 0 / -45 / 90 / 0), the resin is selected from Momentive R135 epoxy resin, the curing agent is Momentive H1366, and vacuum is used The hot pressing method makes the automobile carbon fiber hair cover outer plate and the glass fiber inner plate (7 layers), and adopts polyurethane adhesive glue to obtain the hair cover 2;

Embodiment 3

[0027] The carbon fiber is selected from Dalian Xingke 3K twill fabric, (the layering method is one layer of carbon fiber plus one layer of glass fiber, the outermost layer 1 or two are carbon fiber layers, there are eight layers of carbon fiber layers, seven layers of glass fibers, and the sequence of carbon fiber layers 0 / 45 / 90 / 45 / 0 / -45 / 90 / 0), the resin is Momentive R1564 epoxy resin, the curing agent is Momentive H3458, and the car carbon fiber hair cover outer panel and glass are made by vacuum hot pressing Fiber inner panel (7 layers), glued with polyurethane adhesive to obtain hair cover 3;

[0028] The obtained hair caps are compared with metal hair caps as shown in the table below:

[0029] serial number

Mass(Kg)

Rigidity(N / mm)

hair cover 1

7.8

303

hair cover 2

7.5

331

hair cover 3

8.2

279

metal hair cap

22.4

233

[0030] Glass fiber is an inorganic non-metallic material with excellent performan...

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Abstract

The invention discloses an engine hood made from a composite material. The engine hood is equipped with an engine hood main body, wherein an outer layer 1 of the engine hood main body is made from a carbon fiber composite material; an inner layer 2 is made from a glass fiber material; the inner layer 2 is connected with the outer layer 1. The engine hood made from the composite material can meet the requirements of reducing the weight of the engine hood, reducing the fuel consumption and reducing pollutant emission and meanwhile can guarantee crash safety and controllable cost.

Description

technical field [0001] The invention relates to the field of composite material auto parts, in particular to a composite material engine compartment cover. Background technique [0002] Carbon fiber composite materials have the advantages of light weight, high strength and high rigidity. Sub-panels, bottom panels and side panels, etc. [0003] The density of carbon fiber reinforced resin matrix composite material is 1.5-2.0g / cubic centimeter, which is only 1 / 4-1 / 5 of the ordinary carbon steel commonly used in the automobile industry, and is about 1 / 3 lighter than the commonly used aluminum alloy, but The mechanical properties of carbon fiber composite materials are superior to those of metal materials, their tensile strength is 3-4 times higher than that of steel, and their stiffness is 2-3 times higher than that of steel. The use of carbon fiber materials can reduce the weight of the body while reducing the power demand, and then use a smaller drive engine and suspension ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B9/00B32B9/04B32B17/06B32B17/12B32B7/12
CPCB32B5/26B32B7/12B32B2250/20B32B2262/101B32B2262/106B32B2605/08B62D25/10
Inventor 洪丽唐少俊秦玉林李中兵
Owner CHERY AUTOMOBILE CO LTD
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