Forming method of carbon fiber composite material for vehicle

A composite material and molding method technology, used in applications, household appliances, household components, etc., can solve the problems that the surface quality needs to be further improved, affect the production rhythm of the product, and block the injection port of the mold, so as to save the process of heating and cooling, guaranteeing Consistent production, time-saving effects

Pending Publication Date: 2020-11-17
江苏国新新能源乘用车有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The traditional RTM carbon fiber composite molding process has slow resin curing, and the mold needs to be heated and cooled. At the same time, the injection port of the mold is prone to blockage, which further affects the production cycle of the product.
At the same time, the surface quality of the product needs to be further improved

Method used

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  • Forming method of carbon fiber composite material for vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Example 1: Carbon fiber composite material automobile roof inner panel forming

[0037] First, import the cutting diagram of the inner panel of the top cover into the carbon cloth cutting machine, and operate the cutting machine software to complete the cutting work of the 3-layer carbon fiber cloth. This step only takes 1 minute. According to the layup diagram of the inner panel of the top cover, lay three layers of carbon cloth on the preforming mold in sequence, and spray an appropriate amount of sizing glue between the layers of carbon cloth to initially fix it on the mold. After the preforming press finishes closing the mold, use hand-held electric scissors to cut off the excess scrap around the mold. After 2 minutes of closing the mold, the product preforming work is completed. Preheat Part A epoxy resin to 60°C before mixing. Weigh 1.5kg of molding resin and 0.255kg of curing agent respectively, mix them well, and then evenly paint them on the surface of the car...

Embodiment 2

[0038] Example 2: Carbon fiber composite material automobile side wall inner panel forming

[0039] First, import the cutting diagram of the inner panel of the side wall into the carbon cloth cutting machine, and operate the cutting machine software to complete the cutting work of the 3-layer carbon fiber cloth. According to the layup diagram of the inner panel of the side wall, lay three layers of carbon cloth on the preformed mold in sequence, and spray an appropriate amount of shaping glue between the layers of carbon cloth to initially fix it on the mold. After the preforming press finishes closing the mold, use hand-held electric scissors to cut off the excess scrap around the mold. After 2 minutes of closing the mold, complete the product preforming work and obtain the preform. Preheat Part A epoxy resin to 60°C before mixing. Weigh 2.5kg of resin and 0.425kg of curing agent respectively, stir well, and then evenly paint on the surface of the carbon fiber preform with a...

Embodiment 3

[0040] Example 3: Carbon fiber composite material automobile hatch cover molding

[0041]First, import the cutting diagram of the front hatch cover into the carbon cloth cutting machine, and operate the cutting machine software to complete the cutting work of 4 layers of carbon fiber cloth. According to the layup diagram of the inner panel of the side wall, lay out 4 layers of carbon cloth on the preformed mold in sequence, and spray an appropriate amount of sizing glue between the carbon cloth layers to initially fix it on the mold. After the preforming press finishes closing the mold, use hand-held electric scissors to cut off the excess scrap around the mold. After 2 minutes of closing the mold, the product preforming work is completed and the preform is obtained. Preheat Part A epoxy resin to 60°C before mixing. Weigh 1kg of resin and 0.17kg of curing agent respectively, stir well and then evenly paint on the surface of the carbon fiber preform with a brush. Then move th...

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Abstract

The invention discloses a forming method of a carbon fiber composite material for a vehicle. The forming method mainly comprises the steps of carbon cloth cutting, laying and preforming, resin soakingand compression molding forming, specifically, the carbon cloth cutting step adopts the means that a plurality of laid layer drawings are formed in a decomposition mode in the thickness direction andthen guided into a cutting machine, and the resin soaking step adopts the means of quickly curing epoxy resin and the like. According to the forming method, the production efficiency of carbon fibercomposite material parts for the vehicle can be greatly improved, the cycle time of a single process can be within 5 minutes, the internal porosity of a product can be controlled to be about 0.5%, thesurface quality of the product is improved, the time is saved for coating pretreatment, the production consistency is guaranteed, and the mechanical property of the product can also be improved to acertain extent.

Description

technical field [0001] The invention belongs to the application field of electric vehicles, in particular to a method for forming a carbon fiber composite material for vehicles. Background technique [0002] In the traditional RTM carbon fiber composite molding process, the resin solidifies slowly, and the mold needs to be heated and cooled. At the same time, the injection port of the mold is prone to blockage, which further affects the production cycle of the product. At the same time, the surface quality of the product needs to be further improved. Contents of the invention [0003] The purpose of the present invention is to provide a molding method of carbon fiber composite materials for vehicles, which can greatly improve the production efficiency of carbon fiber composite materials for vehicles, so that the beat of a single process is within 5 minutes, and the internal porosity of the product can be controlled at the same time. About 0.5%, improve the surface quality...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/34B29C70/54B29L31/30
CPCB29C70/342B29C70/545B29L2031/30
Inventor 郭少林丁元章王鹏
Owner 江苏国新新能源乘用车有限公司
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