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Method for preparing glass fiber reinforced plastic through vacuum flow guide

A technology of vacuum infusion and FRP, which is applied in the field of preparing FRP by vacuum infusion, which can solve the problems of complex mechanical properties, difficult control of product quality, poor labor hygiene conditions, etc., and achieve a friendly working environment, light weight, and wide application fields. wide range of effects

Active Publication Date: 2018-01-09
徐卫国
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, FRP products, such as boat hulls, are mostly formed by hand lay-up, but hand lay-up molding has low productivity, high labor intensity, poor labor hygiene conditions, difficult product quality control, low performance stability, and low product mechanical properties.
Especially for large hulls with complex structures, high mechanical performance requirements, and large body shapes, it is difficult to implement the traditional hand lay-up process;

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] Below in conjunction with specific embodiment, further illustrate the present invention.

[0026] A method for preparing FRP by vacuum infusion, characterized in that the method comprises the following steps:

[0027] Step 1, first lay the fiber cloth inside the mold, and lay the diversion net on the fiber cloth;

[0028] Step 2, setting a glue injection port on the diversion net, and the glue injection port is connected with a glue injection pipe;

[0029] Step 3, setting winding tubes on the diversion net, and connecting the winding tubes to the vacuum pump;

[0030] Step 4, start the vacuum pump to vacuumize, so that the vacuum degree of the sealed space inside the mold reaches -0.08-0.1MPa, and open the injection pipe to pour the matrix resin into the mold;

[0031] Step 5, after pouring, continue to maintain vacuum pressure for 30-120 minutes, and after the fixing is completed, demould to obtain FRP;

[0032] The fiber cloth has 5-20 layers.

[0033] The single...

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PUM

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Abstract

The invention discloses a method for preparing glass fiber reinforced plastic through vacuum flow guide. The method comprises the following steps: laying a fiber cloth in a die, starting a vacuum pumpand vacuumizing to enable the vacuum degree of a sealed space in the die to achieve 0.08-0.1MPa, pouring matrix resin into the die, and curing to form the glass fiber reinforced plastic. The processis simple, green and pollution-free; and the composite material has the advantages of being high in mechanical property, wide in application prospect and the like, and is wide in application field.

Description

technical field [0001] The invention relates to a method for preparing glass fiber reinforced plastics by vacuum diversion. Background technique [0002] With the development of society and economy, people's purchasing power is on the rise, and the requirements for the material and performance of the product are getting higher and higher. Therefore, the requirements for the product molding process are getting higher and higher, especially the molding process. environmental protection and cost. At present, FRP products, such as boat hulls, are mostly formed by hand lay-up, but hand lay-up has low productivity, high labor intensity, poor labor hygiene conditions, difficult product quality control, low performance stability, and low product mechanical properties. Especially for large hulls with complex structures, high mechanical performance requirements, and large body shapes, it is difficult to implement the traditional hand lay-up process; [0003] Vacuum infusion process ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/36B29C70/34B29C70/54
Inventor 徐卫国
Owner 徐卫国
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