Method and special equipment for preparing carbon fiber product

A carbon fiber and product technology, which is applied in the field of resin-based composite material preparation, can solve the problems of difficult air bubbles, low production efficiency, and difficult storage, etc., and achieve the effects of accelerating resin flow, improving work efficiency, and improving impregnation

Active Publication Date: 2009-09-30
宜兴市中碳科技有限公司
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  • 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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  • Method and special equipment for preparing carbon fiber product
  • Method and special equipment for preparing 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 ...

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Abstract

The invention discloses a method and special equipment for preparing a carbon fiber product. The carbon fiber product is prepared according to the following steps: a piece of carbon cloth is spread flat between two pieces of toughened glass; the toughened glass is arranged in a flow guide sealing device; the flow guide sealing device is arranged on a stand with an angle of inclination of 30-60 degrees; a vacuum pump is started to vacuumize the flow guide sealing device; a resin pump is started to pump resin from a sealed resin can and the resin pump is stopped when the resin enters between the two pieces of toughened glass in the flow guide sealing device; an elastic inflatable balloon in the flow guide sealing device is inflated by compressed air, and the inflated elastic inflatable balloon presses the toughened glass to make the same movement until the distance between the two pieces of toughened glass reaches the thickness of the required carbon fiber product; the vacuum pump is stopped; the resin is solidified after being processed through pressure maintaining and temperature preservation; and the resin is demolded. The method for preparing the carbon fiber product is easy to operate, has high carbon fiber product production efficiency and is energy-saving and environmental-friendly.

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 and special equipment for preparing the 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 metho...

Claims

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Application Information

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Patent Type & Authority Applications(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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