Vacuum bag assembly for carbon fiber composite material and vacuum pumping method thereof

A composite material and vacuum bag technology is applied to the vacuum bag assembly for carbon fiber composite materials and the field of vacuuming, which can solve the problems of troublesome operation, increase processing cost, and can not solve the problems of broken bags, etc. Sealing effect, avoiding the effect of unsmooth air conduction

Inactive Publication Date: 2017-06-13
ANHUI JIALIQI AEROSPACE CARBON FIBER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method will bring operational troubles in the sealing of the sealing film, and also increase the processing cost; in addition, the simple multi-layer sealing film setting scheme cannot solve the bag breaking problem well

Method used

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  • Vacuum bag assembly for carbon fiber composite material and vacuum pumping method thereof
  • Vacuum bag assembly for carbon fiber composite material and vacuum pumping method thereof
  • Vacuum bag assembly for carbon fiber composite material and vacuum pumping method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0040] Such as Figure 1-2 As shown, this embodiment discloses a vacuum bag assembly for carbon fiber composite materials, including a vacuum bag 1 and a vacuum interface 2, the vacuum interface 2 is used to connect the vacuum bag 1 to a vacuum machine. It also includes a first sealing strip 3, a second sealing strip 4, an adhesive tape 5, and an air guiding cloth 6.

[0041] The vacuum bag 1 is a structure with three sides sealed and one side opened, and a vacuum interface 2 is arranged on its surface. One end of the vacuum interface 2 extends into the vacuum bag 1 , and the other end of the vacuum interface 2 extends out of the vacuum bag 1 . A suction nozzle 5 is provided at the end of one end of the vacuum port 2 protruding into the vacuum bag 1 .

[0042] Such as Figure 4 As shown, an air guide groove 15 is opened on the end of the suction nozzle 5 , and the air guide groove 15 communicates with the vacuum interface 2 . The air guide cloth 6 is arranged in the vacuum...

Embodiment 2

[0058] Such as Figure 1-4 As shown, this embodiment discloses a method for vacuuming the above-mentioned carbon fiber composite material with a vacuum bag assembly, including the following steps:

[0059] (1) Put the material to be vacuumed into the vacuum bag 1 through the opening on the vacuum bag 1 .

[0060] (2) The first sealing strip 3 is placed between the two films of the opening, and the films are clamped to seal the opening to form a sealing edge.

[0061] (3) After sealing, trim off the excess, unsealed area of ​​the two films.

[0062] (4) Wrap the sealing edge with one side of the second sealing strip 4 , and glue the other side of the second sealing strip 4 with adhesive tape 5 .

[0063] (5) Connect the vacuum tube body 7 to the vacuum interface 2, install the sealing gasket 8, the pressure ring 9, and the fastening nut 10 in sequence, and tighten the fastening nut 10.

[0064] (6) Connect the vacuum machine to the vacuum tube body 7, press down on the sucti...

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Abstract

The invention discloses a vacuum bag assembly for a carbon fiber composite material. The vacuum bag assembly comprises a vacuum bag which is of a structure that the three edges of the vacuum bag are sealed and one edge of the vacuum bag is opened. The surface of the vacuum bag is provided with a connector. One end of the connector stretches into the vacuum bag, and the other end of the connector extends out of the vacuum bag. A suction nozzle is arranged at the end, stretching into the vacuum bag, of the connector. An air guide groove is formed in the end of the suction nozzle and communicates with the connector. Air guide cloth is also arranged in the vacuum bag and can make contact with the suction nozzle. The end, extending out of the vacuum bag, of the connector communicates with a vacuum tube body. A first sealing strip can be limited between two thin films of the opening position inside the vacuum bag. Adhesive tape is used for wrapping the outer side of a second sealing strip. The invention further discloses a vacuum pumping method of the carbon fiber composite material. The vacuum bag assembly for the carbon fiber composite material and the vacuum pumping method thereof have the advantages of being simple in structure, convenient to use, good in sealing property, convenient to seal, high in vacuum pumping rate and capable of effectively preventing the phenomenon of bag breaking.

Description

technical field [0001] The invention relates to the field of vacuum technology, in particular to a vacuum bag assembly for carbon fiber composite materials and a vacuum pumping method thereof. Background technique [0002] After the carbon fiber composite material is taken out of the freezer and thawed, it is laid on the mold according to the shape and specification requirements of the product to form a certain shape and structure; at this time, the product needs to be heated and shaped under vacuum conditions to improve the carbon fiber composite. The formability of the material. [0003] The traditional carbon fiber composite material vacuuming method is to vacuumize the carbon fiber composite material in a sealed state through a vacuum nozzle. The sealing method is to lay carbon fiber composite material on the mold, and then seal the mold with a sealing film. This kind of sealing adopts the on-site sealing method, which has the disadvantage of long processing time; in a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/34
CPCB29C70/342
Inventor 梁禹鑫路强何小平张代梅
Owner ANHUI JIALIQI AEROSPACE CARBON FIBER CO LTD
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