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Manufacturing method for carbon fiber composite material

A composite material and manufacturing method technology, applied in the field of materials, can solve the problems of long molding cycle of composite materials, high manufacturing cost of composite materials, slow heating and heating speed, etc., to shorten molding cycle, improve impact toughness, and fast heating speed. Effect

Active Publication Date: 2017-12-15
惠州市海龙新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The traditional heating method mainly has the following problems: slow heating rate, resulting in a longer molding cycle of composite materials; low heating efficiency, high energy consumption, resulting in high manufacturing costs of composite materials

Method used

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  • Manufacturing method for carbon fiber composite material
  • Manufacturing method for carbon fiber composite material
  • Manufacturing method for carbon fiber composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] see figure 2 , the nano-ferrite powder is evenly doped in the epoxy resin-type sizing agent Araldite LT3366, and the sizing agent is applied to the uniaxially woven carbon fiber through the powder coating equipment, and the carbon fiber fabric and the sizing agent are made by the electromagnetic induction effect The nano-ferrite in the powder heats up to partially melt the sizing agent and adheres to the fiber fabric. The temperature can be precisely and uniformly controlled by electromagnetic induction to ensure the adhesion effect of the sizing agent and the carbon fiber fabric. The content of the sizing agent in the carbon fiber fabric is 6%.

[0053] see image 3 , cut the fabric according to the requirements, superimpose according to 0° / 45° / 90° / -45°, use the electromagnetic induction effect to preheat the superimposed carbon fiber fabric, move it into the preforming mold, pressurize and shape it, and prepare the preformed body .

[0054] see Figure 4 , after c...

Embodiment 2

[0056] The FeAlSi powder with a particle size of 100nm is uniformly doped into the nylon sizing agent, and the sizing agent is applied to the multi-axial carbon fiber fabric through the powder coating equipment, and the temperature of the nano-FeAlSi in the carbon fiber fabric and the sizing agent powder is raised by the electromagnetic induction effect Adhering to the carbon fiber fabric after being partially melted, the content of the sizing agent in the carbon fiber fabric is 4%.

[0057] Superimpose the cut fabrics according to the designed layering method, preheat the superimposed fabrics by electromagnetic induction effect, put them into the preforming mold, pressurize and shape them, and prepare the preformed body.

[0058] After trimming the preformed body according to the size of the forming mold, the mold is opened and moved into the forming mold, the hydraulic press is used to close the mold and pressurize, and the temperature is raised by electromagnetic heating to ...

Embodiment 3

[0060] The carboxyl iron powder with a particle size of 200nm is evenly doped into the phenolic resin sizing agent, and the sizing agent is applied to the carbon fiber twill fabric and unidirectional fabric through the coating equipment, and the electromagnetic induction effect is used to make the carbon fiber fabric and the sizing agent powder inside the nanometer The carboxyl iron powder is heated and partly melted and adhered to the carbon fiber fabric, and the content of the sizing agent in the carbon fiber fabric is 5%.

[0061] Superimpose the cut fabrics according to the designed layering method, lay carbon fiber twill fabric on the outside as the appearance surface, use the electromagnetic induction effect to preheat the superimposed fabrics, put them into the preforming mold, pressurize and shape them, and prepare the preformed body .

[0062] After trimming the preformed body according to the size of the forming mold, the mold is opened and moved into the forming mol...

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Abstract

The invention discloses a manufacturing method for a carbon fiber composite material. The manufacturing method comprises the steps that a sizing agent is applied on carbon fiber fabrics, wherein electromagnetic-induction nano particles are doped in the sizing agent; the sizing agent and the carbon fiber fabrics are heated in an electromagnetic heating mode and are enabled to adhere to each other; the bonded sizing agent and carbon fiber fabrics are subjected to cutting and laminating operation, are preheated by adopting the electromagnetic heating mode and then are put into a pre-forming mold to be subjected to pressing shaping operation so as to obtain a pre-formed body; the pre-formed body is placed into a forming mold to be subjected to mold closing pressurization operation, and the pre-formed body and the forming mold are heated to a preset injection temperature in the electromagnetic heating mode; resin is injected into the forming mold, and the pre-formed body and the forming mold are heated to a preset curing temperature in the electromagnetic heating mode; and after curing molding cooling, demoulding is carried out to obtain the carbon fiber composite material. The method has the advantages that the rate of temperature increase by heating is high, the product manufacturing efficiency is high, and the energy consumption and the manufacturing cost are low.

Description

technical field [0001] The invention relates to the technical field of materials, in particular to a method for manufacturing carbon fiber composite materials. Background technique [0002] High-performance carbon fiber composites have excellent comprehensive properties such as specific strength, high specific modulus, and corrosion resistance, and have been widely used in aerospace, ships, weapons, and sporting goods. At present, carbon fiber composite materials are gradually developing from high-end markets such as aerospace to wind power, automobiles and other industrial fields. Especially in the field of automobiles, as the requirements for energy saving and environmental protection become higher and higher, the requirements for lightweight automobiles extend from racing cars to ordinary automobiles and large buses. Reducing the weight of automobiles can reduce fuel consumption and exhaust emissions. For new energy vehicles It can effectively improve the driving mileage...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/34B29C70/54B29C35/08B29C45/14
CPCB29C35/0805B29C45/1418B29C70/34B29C70/54B29C2035/0811B29C2045/14245
Inventor 赵金华颜美聪颜志向
Owner 惠州市海龙新材料科技有限公司
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