Dry preparation process of fibre reinforced composite tetrahedral lattice batten board

A composite material and fiber-reinforced technology, which is applied in the field of dry preparation technology of fiber-reinforced composite tetrahedral lattice sandwich panels, can solve the problems of no dry method preparation process of fiber-reinforced composite tetrahedral lattice sandwich panels , to achieve the effect of high specific stiffness and high specific strength

Inactive Publication Date: 2010-04-14
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is currently no dry method for the preparation of fiber-reinforced composite tetrahedral lattice sandwich panels.

Method used

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  • Dry preparation process of fibre reinforced composite tetrahedral lattice batten board
  • Dry preparation process of fibre reinforced composite tetrahedral lattice batten board
  • Dry preparation process of fibre reinforced composite tetrahedral lattice batten board

Examples

Experimental program
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Effect test

specific Embodiment approach 1

[0014] Specific implementation mode one: as Figure 1~2 As shown, the dry preparation process steps of the fiber-reinforced composite tetrahedral lattice sandwich panel in this embodiment are as follows:

[0015] Step 1, mold treatment: clean the surface of the mold with acetone solution, and then treat the outer surface of the mold with a release agent;

[0016] Step 2. Fix the mold: Fix the mold with a fixture;

[0017] Step 3, laying dry fiber cloth: lay 1 to 20 layers of dry fiber cloth on the upper and lower surfaces of the mold, and keep the same number of layers of dry fiber cloth laid on the upper and lower surfaces of the mold;

[0018] Step 4, wear long fiber bundles: between the three through holes formed by the second circular through holes 1-2-1 corresponding to the first circular through holes 1-1-1 of the dry fiber cloth mould. Sew the long fiber bundle back and forth until the three through holes can no longer pass through the long fiber bundle until the dry ...

specific Embodiment approach 2

[0024] Specific embodiment two: 3-18 layers of dry fiber cloth are laid on the upper and lower surfaces of the mold in step three of this embodiment. With such settings, fiber reinforced composite lattice sandwich panels of different thicknesses can be produced according to different needs of products. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0025] Specific embodiment three: 5-15 layers of dry fiber cloth are laid on the upper and lower surfaces of the mold in step three of this embodiment. With such settings, fiber reinforced composite lattice sandwich panels of different thicknesses can be produced according to different needs of products. Others are the same as in the second embodiment.

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PUM

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Abstract

The invention relates to a dry preparation process of a fibre reinforced composite tetrahedral lattice batten board, in particular to the dry preparation process of the batten board, solving that any dry preparation process of fibre reinforced composite tetrahedral lattice batten boards is not invented currently. The steps of the process comprise: first, treating a mould, second, fixing the mould, third, laying dried fibre cloth on an upper surface and a lower surface of the mould, fourth, inserting a long fibre bundle to and fro among a pair of first round through holes and a corresponding second round through hole of the mould covered by the dried fibre cloth, and getting a preformed fibre body when the dried fibre cloth laying on the upper and the lower surfaces of the mould are stitched together by the long fibre bundle through the first round through holes and the corresponding second through hole, fifth, transferring the mould by resin, sixth, solidifying the product, and seventh, removing the mould. Compared with traditional metal lattice batten boards, the fibre reinforced composite tetrahedral lattice batten board produced through employing the dry preparation process has better specific strength and specific stiffness.

Description

technical field [0001] The invention relates to a preparation process of a fiber-reinforced composite material sandwich panel. Background technique [0002] Compared with metal materials, fiber reinforced composite materials have higher specific strength and specific stiffness. Most of the materials used in the existing research on the lattice sandwich panel structure are metal materials, and their preparation methods are based on the wire weaving process based on the mesh lamination spot welding method, investment casting process and microcontact printing. Technology-based electroplating welding process. The existing metal material lattice sandwich panel is difficult to form, while the composite material lattice sandwich panel has higher specific strength and specific stiffness compared with the traditional metal lattice sandwich panel, and is easier to form and has stronger reliability. design. However, there is currently no dry preparation process for fiber-reinforced ...

Claims

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Application Information

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IPC IPC(8): B29C70/34B29C70/54
Inventor 张国旗吴林志王兵马力王言言何晓
Owner HARBIN INST OF TECH
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