A kind of preparation method of carbon fiber product

A carbon fiber and product technology, applied in the field of preparation of resin-based composite materials, can solve the problems of difficult to exhaust bubbles, difficult to preserve, low production efficiency, etc., and achieve the effects of accelerating resin flow, improving impregnation, and improving work efficiency

Active Publication Date: 2011-12-14
宜兴市中碳科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Carbon fiber products are widely used in aerospace equipment and various daily electrical equipment. At present, the methods for preparing carbon fiber products mainly include molding method and RTM method. High pressure, so that the pre-impregnated carbon fiber fills the mold cavity, and then the pre-impregnated carbon fiber cloth is cured at a predetermined temperature, and then the carbon fiber product is taken out, and the product is obtained after post-processing. It is not easy to preserve, and secondly, the interweaving point of the product obtained by this method is uneven, and the air bubbles are difficult to exhaust during the preparation process, and the resulting product is not beautiful, and this method is not suitable for producing large-scale products
The RTM method is also called the injection molding process method. It is made by injecting resin into a closed mold filled with carbon fiber cloth, and then curing and demoulding. The flow rate and flow direction of the resin in this preparation method cannot be well controlled, and the resulting carbon fiber product is stable. The distribution of resin is not uniform, which cannot meet the requirements of high mechanical properties, and this preparation method needs to make special molds when preparing carbon fiber products of each thickness specification, which has high cost and low production efficiency

Method used

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  • A kind of preparation method of carbon fiber product
  • A kind of preparation method of carbon fiber product
  • A kind of preparation method of carbon fiber product

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Lay a layer of carbon fiber cloth between two pieces of tempered glass (1), and then place the tempered glass (1) sandwiched with carbon fiber cloth in the two elastic expandable elastic plates arranged symmetrically up and down inside the diversion sealing device (2). Between the balloons (8), seal the diversion sealing device (2), then place the diversion sealing device (2) on the shelf at a 45-degree inclination angle, and then turn on the vacuum pump (3), and the diversion sealing device (2) Carry out vacuuming, open the heating device (10) in the diversion sealing device (2), make the temperature reach 80°C, then open the resin tank valve (4), extract resin from the sealed resin tank (5), and adjust the flow direction of the resin device (9) to adjust the flow direction and flow rate of the resin, observe the resin entering between the two pieces of tempered glass (1) in the diversion sealing device (2) through the transparent visible window on the diversion sealing...

Embodiment 2

[0024] Lay a layer of carbon fiber cloth between two pieces of tempered glass (1), and then place the tempered glass (1) sandwiched with carbon fiber cloth in two symmetrically arranged square frames inside the diversion sealing device (2). Between the elastic inflatable balloons (8), seal the diversion sealing device (2), then place the diversion sealing device (2) on a shelf with an inclination angle of 30 degrees, and then turn on the vacuum pump (3), and seal the diversion sealing device (2). (2) Carry out vacuuming, open the heating device (10) in the diversion sealing device (2), make the temperature reach 90°C, then open the resin tank valve (4), and then open the pressurization valve (6) to use compressed gas ( 7) Pressurize the resin tank, extract resin from the sealed resin tank (5), adjust the resin flow to the controller (9), adjust the flow direction and flow rate of the resin, and pass through the transparent visible window on the diversion sealing device (2) Obs...

Embodiment 3

[0026]Lay a layer of carbon fiber cloth between the two pieces of tempered glass (1), and then place the tempered glass (1) sandwiched with carbon fiber cloth in the two circular springs arranged symmetrically up and down inside the diversion sealing device (2). Between the inflatable balloons (8), seal the diversion sealing device (2), then place the diversion sealing device (2) on the shelf at a 60-degree inclination angle, then turn on the vacuum pump (3), to the diversion sealing device ( 2) Carry out vacuuming, open the heating device (10) in the diversion sealing device (2), make the temperature reach 40°C, then open the resin tank valve (4), then open the pressurization valve (6) and use compressed gas (7 ) to pressurize the resin tank, extract resin from the sealed resin tank (5), adjust the resin flow to the controller (9), adjust the flow direction and flow rate of the resin, and observe through the transparent visible window on the diversion sealing device (2) When ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention discloses a method for preparing a carbon fiber product. The method comprises the following steps: laying a carbon fiber cloth between two pieces of tempered glass, then placing the tempered glass in a diversion sealing device, and placing the diversion sealing device at 30 Go to the shelf with an inclination angle of 60 degrees, turn on the vacuum pump, vacuumize the diversion sealing device, and then turn on the resin pump to extract resin from the sealing resin tank, when the resin enters between the two pieces of tempered glass of the diversion sealing device , turn off the resin pump, and then use compressed gas to inflate the elastic expandable balloon inside the diversion sealing device. After the balloon expands, it will press the tempered glass to move so that the distance between the two pieces of tempered glass reaches the required thickness of the carbon fiber product, and then turn off the vacuum pump. Keep the pressure, keep the heat, make the resin solidify, and then demould to get the carbon fiber product. The preparation method of the carbon fiber product provided by the invention has the advantages of simple operation, high production efficiency, environmental protection and energy saving.

Description

technical field [0001] The invention relates to a method for preparing a resin-based composite material, in particular to a method for preparing a carbon fiber product. Background technique [0002] Carbon fiber products are widely used in aerospace equipment and various daily electrical equipment. At present, the methods for preparing carbon fiber products mainly include molding method and RTM method. High pressure, so that the pre-impregnated carbon fiber fills the mold cavity, and then the pre-impregnated carbon fiber cloth is cured at a predetermined temperature, and then the carbon fiber product is taken out, and the product is obtained after post-processing. It is not easy to preserve, and secondly, the interweaving point of the product obtained by this method is not smooth, and the air bubbles are difficult to be exhausted in the preparation process, and the resulting product is not beautiful, and this method is not suitable for producing large-scale products. The RT...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06N3/00
Inventor 景徐荣
Owner 宜兴市中碳科技有限公司
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