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Production method of composite material automobile parts

A technology for auto parts and production methods, which is applied in the production field of composite auto parts, can solve the problems of large carbon dioxide exhaust emissions, aggravated environmental pollution, large fuel consumption, etc., and achieves low cost, high surface brightness, and reduced concentration. Effect

Inactive Publication Date: 2012-06-27
CHERY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The fuel consumption and carbon dioxide emissions of a car mainly depend on the weight of the car body. Most of the existing car body parts and parts are made of metal materials. The car body parts made of metal materials have high strength and good performance, but metal materials The density of the car is high, and the assembled car is heavy, so the fuel consumption of the car is large, energy is wasted, and the emission of carbon dioxide exhaust gas was also large, which aggravated the pollution of the environment.

Method used

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  • Production method of composite material automobile parts
  • Production method of composite material automobile parts

Examples

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Effect test

example 1

[0020] Example 1: Preparation method of automobile fender

[0021] 1) Mold pre-treatment: first wipe the mold clean with acetone, then apply release wax twice on the surface of the mold, and dry for 3 minutes after each coating, before proceeding to the next operation.

[0022] 2) Gel coat: Mix and stir the curing agent and gel coat resin, the amount of curing agent is 4% of the total mixture mass, the total amount of gel coat and curing agent is 800g, and stir for 8 minutes. Apply the gel coat evenly on the surface of the mold with a brush and cure for 12 hours.

[0023] 3) Raw material resin: choose epoxy resin as the raw material resin, mix epoxy resin and curing agent according to the ratio of 100:15, and the ratio of epoxy resin to fiber is 2:3, after mixing the three, stir for 20 minutes and set aside .

[0024] 4) Laying fiber cloth: first cut the fiber cloth according to the size of the fender to be processed, then bake it at 50°C for 120 minutes, and lay five layers...

example 2

[0028] Example 2: Preparation method of automobile roof cover

[0029] 1) Mold pre-treatment: Wipe the mold clean with acetone first, then apply release wax on the surface of the mold 4 times, dry for 10 minutes after each coating, and then proceed to the next operation.

[0030] 2) Gel coat: Mix and stir the curing agent and gel coat resin, the amount of curing agent is 3.5% of the total mixture mass, the total amount of gel coat and curing agent is 1000g, and stir for 10 minutes. Spray the gel coat on the surface of the mold by spraying, the spraying air source pressure is 0.8Mpa, the distance between the nozzle and the mold surface is 40cm when spraying, and it is cured for 24 hours.

[0031] 3) Raw material resin: choose epoxy resin as the raw material resin, mix epoxy resin and curing agent according to the ratio of 100:25, and the ratio of epoxy resin to fiber is 1:1, after mixing the three, stir for 25 minutes and set aside .

[0032] 4) Laying fiber cloth: first cut ...

example 3

[0036] Example 3: Preparation method of car door outer panel

[0037] 1) Mold pre-treatment: Wipe the mold clean with acetone first, then apply release wax on the surface of the mold 3 times, dry for 6 minutes after each coating, and then proceed to the next operation. .

[0038] 2) Gel coat: Mix and stir the curing agent and gel coat resin, the amount of curing agent is 3% of the total mixture mass, the total amount of gel coat and curing agent is 80g, and stir for 8 minutes. Apply the gel coat evenly on the surface of the mold with a brush and cure for 12 hours.

[0039] 3) Raw material resin: choose epoxy resin as the raw material resin, mix epoxy resin and curing agent according to the ratio of 100:35, and the ratio of epoxy resin to fiber is 3:2, after mixing the three, stir for 20 minutes and set aside .

[0040] 4) Laying fiber cloth: first cut the fiber cloth according to the size of the fender to be processed, then bake it at 50°C for 120 minutes, and lay 2 layers ...

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Abstract

The invention discloses a production method of composite material automobile parts. The method comprises the following steps: performing pretreatment on a die, coating gel coat on the die, configuring molding resin, baking raw fiber cloth, laying a fiber cloth layer in the die, sequentially laying demolding cloth and a guide mesh on the fiber cloth layer, arranging winding pipes on the periphery of the die, leading in molding resin in a vacuum pouring mode, performing curing molding, and performing surface treatment and other operation on molded products. The composite material product prepared by the method has high surface brightness and is level, compared with the traditional metal parts, the weight of the produced product is reduced by 30 to 60 percent, so that the mass of an automobile body is reduced, and the method has the effects of energy saving and emission deduction. In addition, the method of leading in molding resin in the vacuum pouring mode to be compounded with fiber can reduce the concentration of organic escaping gas in the operating environment and reduce the injury on operators.

Description

technical field [0001] The invention belongs to the field of manufacturing technology of auto parts, and in particular relates to a production method of composite auto parts. Background technique [0002] With the continuous development of industry and the continuous increase of energy consumption, saving energy and reducing environmental pollution have become the key issues that need to be solved urgently for the development of the automobile industry and the sustainable development of society. The fuel consumption and carbon dioxide emissions of a car mainly depend on the weight of the car body. Most of the existing car body parts and parts are made of metal materials. The car body parts made of metal materials have high strength and good performance, but metal materials The density of the car is high, and the assembled car is heavy, so the fuel consumption of the car is large, energy is wasted, and the emission of carbon dioxide waste gas was also large, which aggravated ...

Claims

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Application Information

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IPC IPC(8): B29C70/34
Inventor 李祥伟
Owner CHERY AUTOMOBILE CO LTD
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