Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Embedded part, preparation method and composite structure including embedded part

A technology of composite materials and embedded parts, which is applied in the field of composite material embedded parts and composite material structures, and can solve problems such as whitening of composite material parts, affecting the performance of composite materials, and poor resin impregnation

Inactive Publication Date: 2018-08-14
BAMSTONE NEW MATERIAL TECH (WUHAN) CO LTD
View PDF2 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The biggest disadvantage of long-fiber continuous mat is that it is easy to accumulate residual air bubbles in the resin and it is difficult to export, resulting in whitening of the molded composite parts, which affects the performance of the composite material
And the fabric will increase the resin content, which will eventually affect the performance of the composite material and increase the weight and cost of the product
[0005] In addition, in composite materials, when it is necessary to embed metal parts or other embedded parts to make super-hybrid composite materials, it will also cause poor resin impregnation.

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Embedded part, preparation method and composite structure including embedded part
  • Embedded part, preparation method and composite structure including embedded part
  • Embedded part, preparation method and composite structure including embedded part

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] like Figure 1-3 Shown are three typical structures of composite material embedded parts, among which figure 1 It is an embedded part composed of ±45° fiber bundles, including 2 layers of fiber bundles. Each layer of fiber bundles is composed of multiple fiber bundles arranged in the same direction. The fiber bundles are generally fixed by bonding to form a sparse gap. The fiber bundle arrangement direction of the fiber bundle layer is ±45°, and the final embedded part is a mesh or sheet with gaps. The mesh or sheet structure with gaps means that there are gaps between the fiber bundles. , the gap rate is 10%-90%, preferably 30%-70%.

[0030] figure 2 It is an embedded part made of 0° / 90° fiber bundles, including 2 layers of fiber bundles, each layer of fiber bundles is composed of multiple fiber bundles arranged in the same direction, and the fiber bundles are generally fixed by bonding to form a sparse The gap, the arrangement directions of the fiber bundles of th...

Embodiment 2

[0034] A composite structure with a structure such as Figure 4 As shown, from top to bottom are the glass fiber multi-axial cloth layer 01, the embedded part 02, the glass fiber multi-axial cloth layer 01, and the embedded part 02. Its preparation process is as follows:

[0035] On the mold, lay glass fiber multi-axial cloth layer 01, embedded part 02, glass fiber multi-axial cloth layer 01, embedded part 02 in sequence, wherein glass fiber multi-axial cloth layer 01 consists of 10 layers of 3AX(0° / ±45°)1200g / m 2 The multi-axial cloth is formed, and finally the release cloth and the vacuum bag are laid, and the special low-viscosity epoxy resin is poured under the vacuum degree of -0.095MPa, and the test pouring time is 25 minutes.

[0036] Release the mold after the resin is cured, remove the vacuum bag and release cloth, test the thickness of the product to be about 17mm, and the appearance of the product is transparent.

Embodiment 3

[0038] A composite structure with a structure such as Figure 5 As shown, from top to bottom are glass fiber multi-axial cloth layer 01, embedded parts 02, and steel plate layer 03. Its preparation process is as follows:

[0039] On the mold, lay glass fiber multi-axial cloth layer 01, embedded parts 02, and steel plate layer 03 in sequence, of which glass fiber multi-axial cloth layer 01 consists of 2 layers of 3AX (0° / ±45°) 1200g / m 2 The multi-axial cloth is formed, and finally the release cloth and vacuum bag are laid, and the special low-viscosity epoxy resin is poured under the vacuum degree of -0.095MPa, and the test pouring time is 10 minutes. Release the mold after the resin is cured, remove the vacuum bag and release cloth, and test the thickness of the product to be about 4.1mm.

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
Login to View More

PUM

PropertyMeasurementUnit
Linear densityaaaaaaaaaa
Linear densityaaaaaaaaaa
Login to View More

Abstract

The invention discloses a composite embedded part, a preparation method and a composite structure including the embedded part. The embedded part is of a sparse meshed or flaky structure formed by fiber bundles formed by steeping and solidifying resin in one way or in multiple directions; composite and super-hybrid composite parts can be manufactured by embedding the embedded part into a fiber laying layer through a resin introduction technology; the embedded part provides a flowing way for resin flowing in the composite molding process, and the resin steeping effect is improved; the embedded part forms a uniform entirety with a composite after being molded, and the properties of the composite are not reduced. The embedded part is embedded into a fabric and then introduced into the resin, and the embedded part has the advantages that the resin wetting speed is high, bubbles which are not discharged or remain in the resin are extremely easy to discharge, and dry spots are eliminated. Theembedded part also can be applied to the aspects of one-time pouring molding of other pre-molded parts and fabric laying layers used for blocking resin flow guiding, laminated molding of metal and glass fiber super-hybrid composites and the like.

Description

technical field [0001] The invention relates to a composite material embedded part and a composite material structure. Background technique [0002] Introducing resin into pre-set fiber layups is one of the most widely used processes for fiber-reinforced polymer matrix composites (hereinafter referred to as composites), including vacuum assisted resin transfer (VARTM), resin transfer molding (RTM) , Vacuum Assisted Infiltration (VARI), Reaction Injection Molding (RIM) and other specific process methods. In order to improve the impregnation of the resin, so that the resin can completely and quickly fill the fiber layup, using the above process to manufacture composite products, especially when manufacturing thick products, it is necessary to introduce a diversion medium. [0003] Under normal circumstances, a diversion net made of polypropylene (PP) and other materials can be laid outside the reinforced layer of the composite material. After the resin is cured and the compos...

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
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B29C70/36B29C70/18B29B11/16B29C70/86
CPCB29B11/16B29C70/18B29C70/36B29C70/688B29C70/86B29C70/68
Inventor 刘伟
Owner BAMSTONE NEW MATERIAL TECH (WUHAN) CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com