CN103909691B - Carbon-fiber needled preformed body with gradiently-changed body density - Google Patents
Carbon-fiber needled preformed body with gradiently-changed body density Download PDFInfo
- Publication number
- CN103909691B CN103909691B CN201410159117.4A CN201410159117A CN103909691B CN 103909691 B CN103909691 B CN 103909691B CN 201410159117 A CN201410159117 A CN 201410159117A CN 103909691 B CN103909691 B CN 103909691B
- Authority
- CN
- China
- Prior art keywords
- layer
- carbon
- carbon fiber
- density
- preformed body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Nonwoven Fabrics (AREA)
Abstract
The invention discloses a carbon-fiber needled preformed body with gradiently-changed body density. The preformed body is formed by continuously needling three layers of carbon-fiber needled preformed bodies in a multi-angle and layer-by-layer crossed manner, wherein the density of the preformed body at a middle layer is larger than the densities of the preformed bodies at an upper layer and a lower layer, and each preformed body is formed by compositing a layer of weftless carbon cloth paved in a 0-degree/90-degree angle with a layer of mesh tire and continuously needling in the layer-by-layer manner. The preformed body has the advantages of short preparation cycle and low production cost in carbon/carbon sedimentation technological process, and a carbon/carbon composite material produced from the preformed body has excellent performances of wear resistance, high temperature resistance, low expansion coefficient, high heat conductivity, good heat shock resistance, light weight and the like. The high-performance carbon-fiber needled preformed body is a novel functional composite structure product and has wide application prospects in the fields of aviation, space flight, civil construction, military and the like due to the specific structure and advanced production process.
Description
Art
The present invention relates to a kind of preparation method of felt body, more particularly to a kind of carbon fiber acupuncture of volume density graded
Precast body.
Background technology
High-performance carbon fibre needling preform, Jing after the carbon/Carbon deposition PROCESS FOR TREATMENT of high-tech, with rub resistance, resistance to height
The performances such as temperature, light weight, are the emerging high-tech new materials of modern development, are the fields such as Aero-Space, traffic, military people
Widely used new material.
The original structure of carbon fiber precast body be made using carbon fiber-free weft fabric and carbon fibre web tire Jing multilayer acupunctures it is close
The precast body of the permanent density of degree.Processing step mainly includes：1. will produce to staple card Cheng Houwei 1-2mm, the surface density of 50-60
For 40-600g/m2Net tire：2. net tire and carbon fiber are combined, and continuous needle is into three-dimensional precast body.
There is prefabricated body surface in the depositing operations such as subsequent high temperature carbonization, graphitization in above-mentioned original carbon fiber needling preform
The problem that face gap is easily closed, is the high density and uniformity for ensureing product, can only be promoted by low temperature, low-flow concentration
Osmosis, causes densification cycle very long, and production cost is very high.
The content of the invention
The present invention is in order to overcome above-mentioned technical deficiency, there is provided a kind of high carbon fiber acupuncture of internal layer density ratio outer layer density
Precast body, the carbon fiber needling preform be conducive in subsequent deposition process reacting gas inside precast body from the inside to the outside
Deposition, can efficiently solve the problem that precast body surface hole is easily closed, and not only ensure that the high density and uniformity of product,
And manufacturing cycle is substantially reduced, so as to considerably reduce production cost.
Carbon fiber needling preform of the present invention, the precast body by three layers of carbon fiber needling preform multi-angle successively
Intersect continuous needle to form, the bilevel density of density ratio of wherein intermediate layer precast body is big, each layer precast body by one layer 0 °/
90 ° of layings are combined without latitude carbon cloth and one layer of net tire, and successively continuous needle is formed.
Above-mentioned carbon fiber needling preform thickness in monolayer is 5-50mm, and carbon fiber needling preform individual layer interlayer density is 16
± 1 layer/cm, levels carbon fiber needling preform bulk density be 0.25-0.5, intermediate layer carbon fiber needling preform volume
Density is 0.5-0.75, and needling density is 40-45 pins/cm3。
The present invention prepares high-performance carbon fibre needling preform using carbon fiber-free weft fabric and carbon fibre web tire, in precast body
Layer density ratio outer layer density is high.It is left that this precast body used in subsequent deposition process saves 20% than old technology production cost
The right side, has not only saved human and material resources, and substantially reduces the production cycle.
Specific embodiment
As shown in figure 1, carbon fiber needling preform of the present invention, the precast body is by three layers of carbon fiber needling preform
Multi-angle is successively intersected continuous needle and is formed, and the bilevel density of density ratio of wherein intermediate layer precast body is big, and each layer is prefabricated
Body is combined without latitude carbon cloth by one layer of 0 °/90 ° laying with one layer of net tire, and successively continuous needle is formed.Precast body thickness in monolayer is
5-50mm, carbon fiber needling preform individual layer interlayer density is 16 ± 1 layers/cm, and levels carbon fiber needling preform volume is close
Spend for 0.25-0.5, intermediate layer carbon fiber needling preform bulk density is 0.5-0.75.
The preparation method of composite needling preform, mainly includes the following steps that：
1) it is 38-48mm carbon fiber to be cut into into length, and density 30-38g/m2Chopped fiber, spray water makes chopped fiber
3-5% humidity is kept, is put into afterwards in baking oven and is heated to 30 degrees Celsius, be incubated 28-30 hours, take out Jing openers after chopped fiber
Shredding forms separation of material, then the chopped fiber after separation is laid to into net tire.
2) by carbon fiber long array into 0 °/90 ° layings without latitude carbon cloth, it is compound with net tire and successively carry out continuous needle shape
Into single layer composite, thickness in monolayer is controlled in 5-50mm.
3) with step 2) elementary cell of the single layer composite as product that prepare is more by the compound simultaneously Jing of 3-layer composite material
Angle is successively intersected continuous needle and forms composite pricking prefabricated body, and controlling levels carbon fiber needling preform bulk density is
0.25-0.5, intermediate layer carbon fiber needling preform bulk density is 0.5-0.75, and interlayer density is 16 ± 1 layers/cm, is pierced in advance close
Spend for 40-45 pins/cm3Depth of needle is 15-150mm.
The present invention is beneficial to improve the intensity of precast body interlayer structure using carbon fibre web tire.Made by intersection acupuncture prefabricated
Body levels integration, it is ensured that carburizing rate is high in carbon/Carbon deposition technique, even structure.This carbon fiber needling preform with it is close
The constant needling preform of degree is compared, and because of precast body, from outside to inside density increases, and outer layer hole is big compared with internal layer, in subsequent deposition work
Be conducive to reacting gas to deposit from the inside to the outside inside precast body in skill, precast body surface hole can be efficiently solved and easily sealed
The problem closed, 20% or so is saved using this precast body than old technology production cost, has not only saved human and material resources, and
Substantially reduce the production cycle.On the premise of product quality is ensured, price has competitiveness with the like product of foreign countries.
Claims (3)
1. a kind of carbon fiber needling preform, the needling preform is polygonal by three layers of different carbon fiber individual layer precast body of volume density
Degree successively intersects continuous needle and forms, and it is characterized in that：Middle carbon fiber layer precast body is than levels carbon fiber individual layer precast body
Volume density it is big.
2. carbon fiber needling preform according to claim 1, is characterized in that：All individual layer precast bodies by one layer 0 °/
90 ° of layings are combined without latitude carbon cloth and one layer of net tire, and successively continuous needle is formed.
3. carbon fiber needling preform according to claim 1 and 2, is characterized in that：All carbon fiber individual layer precast bodies
Thickness is 5-50mm, and the interlayer density between carbon fiber individual layer precast body is 16 ± 1 layers/cm, and upper and lower layer carbon fiber individual layer is prefabricated
Body bulk density is 0.25-0.5g/cm3, intermediate layer carbon fiber individual layer precast body bulk density is 0.4-0.75g/cm3。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410159117.4A CN103909691B (en) | 2014-04-21 | 2014-04-21 | Carbon-fiber needled preformed body with gradiently-changed body density |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410159117.4A CN103909691B (en) | 2014-04-21 | 2014-04-21 | Carbon-fiber needled preformed body with gradiently-changed body density |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103909691A CN103909691A (en) | 2014-07-09 |
| CN103909691B true CN103909691B (en) | 2017-04-12 |
Family
ID=51035833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410159117.4A Active CN103909691B (en) | 2014-04-21 | 2014-04-21 | Carbon-fiber needled preformed body with gradiently-changed body density |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103909691B (en) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104691338A (en) * | 2014-12-20 | 2015-06-10 | 中南大学 | Producing method of copper wire mesh modified carbon/carbon composite material for pantograph slide plate |
| US11072565B2 (en) * | 2015-02-27 | 2021-07-27 | General Electric Company | Ceramic matrix composite structures with controlled microstructures fabricated using chemical vapor infiltration (CVI) |
| CN104711774A (en) * | 2015-03-31 | 2015-06-17 | 赵晓明 | Full-carbon-fiber weftless cloth containing carbon-fiber filaments in positive and negative 45-degree directions and preparation method thereof |
| CN104999724B (en) * | 2015-07-02 | 2017-04-05 | 河北立格环保科技有限公司 | Oxygen-enriched silk Nomex of a kind of carbon fiber and preparation method and application |
| CN105038116B (en) * | 2015-08-26 | 2017-04-05 | 江南大学 | A kind of deep cross-linked structure carbon fiber reinforced phenol formaldehyde resin base frication material and preparation method thereof |
| CN105332166B (en) * | 2015-11-23 | 2017-09-26 | 江南大学 | A kind of two layers of variable density carbon fiber needling preform |
| US10371222B2 (en) * | 2015-12-28 | 2019-08-06 | Goodrich Corporation | Needled brake disks and methods |
| US10457016B2 (en) | 2016-02-23 | 2019-10-29 | Honeywell International Inc. | Differential needling of a carbon fiber preform |
| CN105801146B (en) * | 2016-04-15 | 2018-12-21 | 航天材料及工艺研究所 | Low density porous carbon bonding composites of gradient of continuous densityization and preparation method thereof |
| CN107287882B (en) * | 2017-05-05 | 2019-03-26 | 航天材料及工艺研究所 | Lightening fire resistant thermally protective materials and preparation method thereof |
| CN109228546B (en) * | 2018-08-22 | 2020-07-10 | 青岛高泰新材料有限公司 | Preparation method of high-density multi-angle woven carbon fiber carbon cylinder |
| CN110735998B (en) * | 2019-09-11 | 2020-10-16 | 蓝箭航天空间科技股份有限公司 | Carrier rocket power pipeline system heat insulation structure and carrier rocket |
| CN113308796A (en) * | 2021-04-25 | 2021-08-27 | 上海大学绍兴研究院 | Structure-reinforced needling preform for carbon/carbon composite material, carbon/carbon composite material and preparation method of carbon/carbon composite material |
| CN113502606A (en) * | 2021-06-30 | 2021-10-15 | 浙江星辉新材料科技有限公司 | Carbon brake disc preform and preparation method thereof |
| WO2023124122A1 (en) * | 2021-12-30 | 2023-07-06 | 隆基绿能科技股份有限公司 | Carbon fiber preform and production method therefor, and high-temperature-resistant carbon-carbon composite |
| CN115611645B (en) * | 2022-10-28 | 2023-05-12 | 航天材料及工艺研究所 | Carbon-ceramic hybrid matrix gradient structure composite material and preparation method thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100078839A1 (en) * | 2005-06-23 | 2010-04-01 | Honeywell International Inc. | Pitch densification of carbon fiber preforms |
| CN101503844A (en) * | 2009-03-02 | 2009-08-12 | 宜兴市飞舟高新科技材料有限公司 | Pre-oxidized fiber filament / pre-oxidized fiber net tire composite pricking prefabricated body and method for manufacturing the same |
| CN101550017B (en) * | 2009-05-12 | 2011-12-14 | 湖南金博复合材料科技有限公司 | High temperature furnace-grade curing carbon fiber thermal insulating material and production technology thereof |
| CN102002819A (en) * | 2010-11-17 | 2011-04-06 | 大连创达技术交易市场有限公司 | Carbon fiber composite needling preform and preparation method thereof |
-
2014
- 2014-04-21 CN CN201410159117.4A patent/CN103909691B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN103909691A (en) | 2014-07-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103909691B (en) | Carbon-fiber needled preformed body with gradiently-changed body density | |
| CN201873841U (en) | Composite-fiber needled prefabricating body | |
| CN101503844A (en) | Pre-oxidized fiber filament / pre-oxidized fiber net tire composite pricking prefabricated body and method for manufacturing the same | |
| CN107059242B (en) | A kind of production method of high thermal conductivity pitch based carbon fiber composite preform | |
| CN102731131B (en) | High-performance fiber heat-insulating material prefabricating bodies and preparation method thereof | |
| CN102729539A (en) | Carbon fibre puncture preform and preparation method for same | |
| CN109955551A (en) | A kind of preparation method of the compound oxidization fiber precast body of carbon fiber | |
| CN102002819A (en) | Carbon fiber composite needling preform and preparation method thereof | |
| CN101503843A (en) | Pre-oxidized fiber filament / pre-oxidized fiber net tire composite pricking prefabricated body and method for manufacturing the same | |
| CN103171212B (en) | Toughened lamination composite material and preparation method thereof | |
| IL200999A0 (en) | Composite ballistic fabric structures | |
| CN105332166B (en) | A kind of two layers of variable density carbon fiber needling preform | |
| CN106393727A (en) | Three-dimensional preform | |
| CN105291448B (en) | The preparation facilities and method of a kind of three-dimensional hollow composite | |
| RU2010150685A (en) | METHOD FOR PRODUCING FRICTION DETAILS BASED ON CARBON-CARBON COMPOSITE MATERIAL | |
| CN102166840A (en) | Z direction continuous carbon fiber prefabricated body | |
| CN110485047B (en) | Quasi-three-dimensional preform for aircraft brake disc and preparation method thereof | |
| CN1255600C (en) | Non-woven needle-punched fabric and quasi three-dimensional prefab | |
| CN107142611A (en) | A kind of aeroge composite fibre Nomex and preparation method thereof | |
| CN107417944A (en) | The preparation method of coarse hair side fibrofelt prepreg, composite and composite | |
| CN113215724A (en) | Method for preparing carbon fiber cured hard felt by integral needling forming | |
| CN102423575B (en) | Reciprocally-laid non-interwoven base cloth polyphenylene sulfide (PPS) fiber needled filtering material and production method thereof | |
| CN201873842U (en) | PANOF (Polyacrylonitrile Oxidized Fiber) acupuncture preform | |
| CN103879076B (en) | Knitted fabric needled felt aggregate and preparation method thereof | |
| CN202192817U (en) | Dedicated reinforcing compound felt for pultrusion sectional material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |