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Rib type composite material component and preparation method thereof

A composite material component, rib-shaped technology, applied in household components, other household appliances, household appliances, etc., can solve the problems of poor matching of positive film support blocks, inability to fit closely, etc., to achieve high fit and improve pressure transmission. Sex, high success rate effect

Active Publication Date: 2022-06-28
CHENGDU AIRCRAFT INDUSTRY GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a rib-shaped composite material member in view of the poor matching between the body of the rib-shaped composite material component and the support block of the male membrane in the prior art and the inability to fit closely. There is a high degree of fit between the body and the male film support block, which eliminates the existing gap and ensures the quality of the later bonding

Method used

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  • Rib type composite material component and preparation method thereof
  • Rib type composite material component and preparation method thereof
  • Rib type composite material component and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Preparation of ribbed composite members

[0039] First, a first layer of adhesive release cloth 31 is fully spread on the top surface 21 of the positive film support block 2 .

[0040]Then, a layer of EW100A prepreg material is fully laid on the first adhesive release cloth 31, then a layer of EW100A prepreg material is laid on top of the EW100 prepreg material, and a second layer of EW100A prepreg material is laid The material layer is not fully laid, but the end near the opening area is 20mm shorter than the EW100 prepreg material layer at the bottom. Two layers of EW100 prepreg make up the flexible material layer 32 . The flexible material layer 32 may also be a ZTTH prepreg material or an EW290 prepreg material. The fluidity of the flexible material layer 32 is 15 mm. The thickness of the flexible material layer 32 is 0.15 mm larger than the maximum gap value between the top surface 21 of the male film support block 2 and the supported surface 111 .

[0041] N...

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Abstract

The invention discloses a rib type composite material component and a preparation method thereof. An interlayer is arranged between the top surface of a positive membrane supporting block and a supported surface of a rib type composite material component body; the interlayer comprises first adhesive demolding cloth, a flexible material layer and second adhesive demolding cloth; the first adhesive demolding cloth is glued on the top surface of the male film supporting block; the flexible material layer is laid on the first adhesive demolding cloth; and the second adhesive demolding cloth is glued on the flexible material layer and is glued with the bottom surface of the male film supporting block. The rib type composite material component provided by the invention is cured and formed under high-temperature and high-pressure conditions, and the flexible material layer can flow and is formed along with the shape in the curing process, so that a gap between the rib type composite material component body and the positive membrane supporting block can be effectively eliminated, the relatively high fitting degree between the rib type composite material component body and the positive membrane supporting block is increased, and the pressure transmission property is improved; and the later cementing quality is effectively ensured.

Description

technical field [0001] The invention relates to the technical field of preparation of rib-shaped composite material components, in particular to a rib-shaped composite material component and a preparation method thereof. Background technique [0002] The composite material component secondary bonding molding process is to glue and connect different composite material parts again to form an integral part through the adhesive. This process is stable and reliable, and is one of the most widely used molding technologies for the manufacture of composite parts in the aviation and aerospace fields. [0003] The ribbed composite member body has a special structure, such as figure 1 As shown in the figure, during secondary bonding with other composite components, a positive film support block is usually embedded in the inner cavity of the ribbed composite component body. Due to the support of the positive film support block, the pressure can be transmitted to the film. face, such a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C65/48B29C35/02B29C33/00B29L31/00B29L31/30
CPCB29C65/48B29C66/034B29C66/721B29C66/87B29C35/0227B29C33/00B29L2031/3097B29L2031/003Y02T50/40
Inventor 余青徐恒元范晓龙赵明田静
Owner CHENGDU AIRCRAFT INDUSTRY GROUP
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