CN217598001U - Carrier reinforced low-density fiber preform - Google Patents
Carrier reinforced low-density fiber preform Download PDFInfo
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- CN217598001U CN217598001U CN202221031909.XU CN202221031909U CN217598001U CN 217598001 U CN217598001 U CN 217598001U CN 202221031909 U CN202221031909 U CN 202221031909U CN 217598001 U CN217598001 U CN 217598001U
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Abstract
The utility model provides a carrier reinforced low-density fiber preform, which comprises a preform body and a carrier, wherein the carrier is arranged under the preform body; the prefabricated body comprises a plurality of layers of fiber net tires, and the fiber net tires are fixed through a first fiber cluster; the fiber net tire of the preform body and the carrier are fixed through a second fiber cluster; the carrier is arranged at the bottom of the preform body, so that stress diffusion of the formed preform out of a mold is reduced, the fiber preform can be prevented from deforming, rolling and folding and the like in the transfer process, and the size, the shape and the density of the preform are kept complete and accurate; the carrier plays a role in reinforcing and shaping the prefabricated body, does not influence the overall performance of the composite material, and can be reserved or removed in subsequent processing procedures, so that the subsequent production is simplified.
Description
Technical Field
The utility model relates to a fibre prefabricated part technical field especially relates to a carrier reinforcement type low density fibre prefabricated part.
Background
The low-density fiber preform is one of important directions in the aerospace market application and research field, and has the advantages of low volume density, light weight and good heat insulation effect. However, most low-density fiber preforms are of full-fiber net tire laying heterotype structures and are easy to deform, and are extremely easy to deform and roll in the processing and application processes of composite materials, particularly in the demoulding transfer and subsequent processing processes, so that the original performance of the composite materials is influenced.
At present, the demoulding and transferring of the low-density fiber preform usually adopts additional measures, such as reserving enough deformation loss allowance in the production process so as to carry out cutting correction after transferring; and arranging a protective forming mould and the like in the transferring process to prevent the low-density fiber prefabricated body from deforming in the transferring process. However, these methods have high raw material loss, complicated subsequent processing, high cost and energy consumption, and are not suitable for mass sustainable production.
Therefore, a carrier-reinforced low-density fiber preform is needed, which can solve the problem that the existing low-density fiber preform is very easy to deform and roll during the stripping transportation and the subsequent processing.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a carrier reinforcement type low density fiber preform to solve the above-mentioned problem that current low density fiber preform is extremely yielding, the book is rolled over in the deciduate is transported and follow-up course of working.
In order to achieve the above purpose, the utility model provides a following scheme:
the utility model provides a carrier reinforced low-density fiber preform, which comprises a preform body and a carrier, wherein the carrier is arranged under the preform body; the prefabricated body comprises a plurality of layers of fiber net tires, and the fiber net tires are fixed through a first fiber cluster; and the fiber net tire at the bottom of the prefabricated body is fixed with the carrier through a second fiber cluster.
Preferably, the bulk density of the preform body is 0.08 to 0.15g/cm 3 The thickness is 10-60 mm.
Preferably, the fiber net tire is a short fiber thin felt, the fiber length of the short fiber thin felt is 30-100 mm, and the square meter gram weight is 20-200 g/m 2 。
Preferably, the fiber material of the short fiber mat is one or more of carbon fiber, quartz fiber, alumina fiber, mullite fiber and silicon carbide fiber.
Preferably, the first fiber cluster has a needling density of 5 to 10 needles/cm 2 。
Preferably, the carrier is single-layer fiber woven cloth, the thickness of the carrier is 0.2-0.5 mm, and the gram weight per square meter is 230-500 g/m 2 。
Preferably, the fiber material of the single-layer fiber woven cloth is one or more of carbon fiber, quartz fiber, alumina fiber, mullite fiber and silicon carbide fiber.
Preferably, the weaving structure of the single-layer fiber weaving cloth is plain weave, twill weave or satin weave.
Preferably, the needling density of the second fiber cluster is 10-15 needles/cm 2 。
Preferably, the preform body has a bottom area smaller than the area of the carrier.
The utility model discloses following beneficial technological effect has been gained for prior art:
the utility model provides a carrier-reinforced low-density fiber preform, which comprises a preform body and a carrier, wherein the carrier is arranged under the preform body; the prefabricated body comprises a plurality of layers of fiber net tires, and the fiber net tires are fixed through a first fiber cluster; the fiber net tire of the preform body and the carrier are fixed through a second fiber cluster; the carrier is arranged at the bottom of the preform body, so that stress diffusion of the formed preform out of a mold is reduced, the fiber preform can be prevented from deforming, rolling and folding and the like in the transfer process, and the size, the shape and the density of the preform are kept complete and accurate; the carrier plays a role in reinforcing and shaping the prefabricated body, does not influence the overall performance of the composite material, and can be reserved or removed in subsequent processing procedures, so that the subsequent production is simplified.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor.
Fig. 1 is a schematic structural diagram of a carrier-reinforced low-density fiber preform provided by the present invention;
in the figure: 1: preform body, 11: fiber web, 2: vector, 3: first fiber bundle, 4: a second fiber cluster.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model aims at providing a carrier reinforcement type low density fiber preform to solve the problem that current low density fiber preform is extremely yielding, is rolled up and rolls over in deciduate transportation and follow-up course of working.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
Example 1:
the present embodiment provides a carrier-reinforced low-density fiber preform, as shown in fig. 1, including a preform body 1 and a carrier 2, where the carrier 2 is disposed directly below the preform body 1; the prefabricated body 1 comprises a plurality of layers of fiber mesh tires 11, and the fiber mesh tires 11 are fixed through a first fiber cluster 3; the fiber net blank 11 at the bottom of the prefabricated body 1 is fixed with the carrier 2 through the second fiber cluster 4.
Specifically, the bulk density of the preform body 1 is 0.08 to 0.15g/cm 3 The thickness is 10-60 mm.
Further, the fiber net blank 11 is a short fiber mat, the fiber length of the short fiber mat is 30-100 mm, and the square meter gram weight is 20-200 g/m 2 。
Further, the fiber material of the short fiber thin felt is one or more of carbon fiber, quartz fiber, alumina fiber, mullite fiber and silicon carbide fiber.
Further, the needling density of the first fiber cluster 3 is 5 to 10 needles/cm 2 。
Further, the carrier 2 is single-layer fiber woven cloth, the thickness of the carrier is 0.2-0.5 mm, and the square meter gram weight of the carrier is 230-500 g/m 2 。
Further, in order to simplify the subsequent production, the single-layer fiber woven fabric is consistent with the fiber net blank 11 in material; the fiber material of the single-layer fiber woven cloth is one or more of carbon fiber, quartz fiber, alumina fiber, mullite fiber and silicon carbide fiber; this allows the carrier 2 to be retained in subsequent processing steps without affecting the overall properties of the composite.
Further, the weaving structure of the single-layer fiber woven cloth is plain weave, twill weave or satin weave.
Further, the needling density of the second fiber cluster 4 is 10 to 15 needles/cm 2 。
Further, the bottom area of the preform body 1 is smaller than the area of the carrier 2, so as to leave a space for a person to handle.
The utility model discloses the principle and the implementation mode of the utility model are explained by applying the concrete examples, and the explanation of the above examples is only used for helping to understand the method and the core idea of the utility model; meanwhile, for those skilled in the art, the idea of the present invention may be changed in the specific embodiments and the application range. In summary, the content of the present description should not be construed as a limitation of the present invention.
Claims (8)
1. A carrier-reinforced low-density fiber preform characterized by: the carrier is arranged right below the preform body; the prefabricated body comprises a plurality of layers of fiber net tires, and the fiber net tires are fixed through a first fiber cluster; and the fiber net tire at the bottom of the prefabricated body is fixed with the carrier through a second fiber cluster.
2. The carrier-reinforced low-density fibrous preform of claim 1, wherein: the bulk density of the preform body is 0.08 to 0.15g/cm 3 The thickness is 10 to 60mm.
3. The carrier-reinforced low-density fibrous preform of claim 1, wherein: the fiber net tire is a short fiber thin felt, the fiber length of the short fiber thin felt is 30 to 100mm, and the gram weight of the short fiber thin felt is 20 to 200g/m 2 。
4. The carrier-reinforced low-density fibrous preform of claim 1, wherein: the needling density of the first fiber cluster is 5 to 10 needles/cm 2 。
5. The carrier-reinforced low-density fibrous preform of claim 1, wherein: the carrier is single-layer fiber woven cloth, the thickness of the carrier is 0.2 to 0.5mm, and the gram weight of the carrier is 230 to 500g/m 2 。
6. The carrier-reinforced low-density fibrous preform of claim 5, wherein: the weaving structure of the single-layer fiber woven cloth is plain weave, twill weave or satin weave.
7. The carrier-reinforced low-density fibrous preform of claim 1, wherein: the needle punching density of the second fiber cluster is 10 to 15 needles/cm 2 。
8. The carrier-reinforced low-density fiber preform as claimed in any one of claims 1 to 7, wherein: the preform body has a bottom area smaller than an area of the carrier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221031909.XU CN217598001U (en) | 2022-04-29 | 2022-04-29 | Carrier reinforced low-density fiber preform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221031909.XU CN217598001U (en) | 2022-04-29 | 2022-04-29 | Carrier reinforced low-density fiber preform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217598001U true CN217598001U (en) | 2022-10-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221031909.XU Active CN217598001U (en) | 2022-04-29 | 2022-04-29 | Carrier reinforced low-density fiber preform |
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| Country | Link |
|---|---|
| CN (1) | CN217598001U (en) |
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2022
- 2022-04-29 CN CN202221031909.XU patent/CN217598001U/en active Active
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