CN203994889U - A kind of double sandwich structure deep camber aramid fiber honeycomb core plate - Google Patents
A kind of double sandwich structure deep camber aramid fiber honeycomb core plate Download PDFInfo
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- CN203994889U CN203994889U CN201420453502.5U CN201420453502U CN203994889U CN 203994889 U CN203994889 U CN 203994889U CN 201420453502 U CN201420453502 U CN 201420453502U CN 203994889 U CN203994889 U CN 203994889U
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Abstract
A kind of double sandwich structure deep camber aramid fiber honeycomb core plate, comprise the first aramid fiber cellular board and the second aramid fiber cellular board that are identical arc, between the first aramid fiber cellular board and the second aramid fiber cellular board, be provided with a flexible isolating layer, and the first described aramid fiber cellular board and this flexible isolating layer adopt high-strength epoxy structure glue-line bonding, the second described aramid fiber cellular board and this flexible isolating layer adopt high-strength epoxy structure glue-line bonding.The large specification curved surface aramid fiber honeycomb core plate that the utility model provides a kind of simple in structure, good mechanical performance to be not easy fracture, to solve the easily problem of fracture of existing deep camber aramid fiber cellular board.
Description
Technical field
The utility model belongs to aeronautical material field, refers in particular to a kind of double sandwich structure deep camber aramid fiber honeycomb core plate.
Background technology
Aramid fiber honeycomb core plate is a kind of high-performance aviation composite that aramid fiber honeycomb is that matrix is used aramid paper to strengthen of take, because its high-strength light, anti-flammability are high, high specific strength, the good specific of high specific stiffness be widely used in fields such as Aero-Space, track traffics.But, because the appearance curved surface of aeronautical product product is more, shape face complicated, the at present domestic appearance that also there is no the ripe aramid fiber honeycomb core plate for many curved surfaces aeronautical product product.Therefore, need to develop a kind of deep camber aramid paper honeycomb core plate, to solve the problem of shape face curved surface complexity, difficult forming in aeronautical products.But because aramid fiber honeycomb core plate is in manufacturing crooked process, particularly when by comb core brake forming, the larger aramid fiber cellular node and covering and honeycomb unsticking cracking of must causing of product radius of curvature disconnects, thereby cannot guarantee the strength and stiffness of product, when serious, cause scrapping of whole aviation composite product.
Summary of the invention
For solving the problems of the technologies described above, the purpose of this utility model is to provide a kind of simple in structure, large specification curved surface aramid fiber honeycomb core plate that good mechanical performance is not easy fracture, to solve the easily problem of fracture and unsticking of existing deep camber aramid fiber cellular board.
For achieving the above object, a kind of double sandwich structure deep camber aramid fiber honeycomb core plate of the utility model, comprise the first aramid fiber cellular board and the second aramid fiber cellular board that are identical arc, it is characterized in that: between the first described aramid fiber cellular board and the second aramid fiber cellular board, be provided with a flexible isolating layer, and the first described aramid fiber cellular board and this flexible isolating layer adopt high-strength epoxy structure glue-line bonding, the second described aramid fiber cellular board and this flexible isolating layer adopt high-strength epoxy structure glue-line bonding.
On the basis of such scheme, preferably, described flexible isolating layer is polyurethanes glue-line.
On the basis of such scheme, preferably, the length of run of the first described aramid fiber cellular board is greater than the length of run of the second aramid fiber cellular board.
On the basis of such scheme, preferably, the thickness that the first described aramid fiber cellular board embeds described flexible isolating layer is 2.85mm.
On the basis of such scheme, preferably, the thickness that the second described aramid fiber cellular board embeds described flexible isolating layer is 1.8mm.
On the basis of such scheme, preferably, the end face that the first described aramid fiber cellular board and the second aramid fiber cellular board deviate from described flexible isolating layer is equipped with respectively a carbon fiber skin or glass fibre covering.
Preferred on the basis of such scheme, the thickness of the first described aramid fiber cellular board: the thickness of flexible isolating layer: the thickness of the second aramid fiber cellular board is 2:0.5:2.
The utility model compared with prior art, its beneficial effect is: the utility model has overcome the problem of the easy fracture of traditional deep camber aramid fiber cellular board and unsticking, between the first aramid fiber cellular board and the second aramid fiber cellular board, one deck flexible isolating layer is set, active force while alleviating the first aramid fiber cellular board and the second aramid fiber cellular board brake forming by flexible isolating layer between aramid fiber cellular node, the problem of avoiding aramid fiber cellular node to rupture; Between flexible isolating layer and honeycomb, adopt high-strength epoxy structure glue-line bonding, not only can effectively prevent the de-problem of splitting of the first aramid fiber cellular board and the second aramid fiber cellular board, and can effectively increase the adhesive strength between the first aramid fiber cellular board and flexible isolating layer, the second aramid fiber cellular board and flexible isolating layer, avoid it when brake forming, to rupture.
Accompanying drawing explanation
Fig. 1 is the structural representation of large specification curved surface aramid fiber honeycomb core plate of the present utility model.
Fig. 2 is the sectional view of A-A of the present utility model.
The specific embodiment
By describe in detail the utility model technology contents, structural feature, reached object and effect, below hereby exemplify embodiment and coordinate accompanying drawing to be explained in detail.
Refer to Fig. 1, and in conjunction with consulting shown in Fig. 2, the utility model provides a kind of double sandwich structure deep camber aramid fiber honeycomb core plate, the first curved aramid fiber cellular board 10 and the second curved aramid fiber cellular board 20, and the arc radius of the first aramid fiber cellular board 10 is greater than the arc radius of the second aramid fiber cellular board 20, and be provided with flexible isolating layer 30 between the first aramid fiber cellular board 10 and the second aramid fiber cellular board 20, and the employing high-strength epoxy structure glue-line that the first aramid fiber cellular board 10 is connected with this flexible isolating layer 30 is bonding, and the first aramid fiber cellular board 1 is contacted in one end embedding flexible isolating layer 30 with flexible isolating layer 30, the second aramid fiber cellular board 20 adopts high-strength epoxy structure glue-line bonding with flexible isolating layer 30, and the second aramid fiber cellular board 20 is contacted in one end embedding flexible isolating layer 30 with flexible isolating layer 30, and flexible isolating layer is preferably polyurethanes glue-line.
During making, user can pass through gluing traditionally, superimposed, suppression process is made and produced respectively the first aramid fiber cellular board 10 and the second aramid fiber cellular board 20, and make the first aramid fiber cellular board 10 and the second aramid fiber cellular board 20 according to the required comb core thickness of project organization, through thermocompression forming, obtain untreated aramid fiber honeycomb core.By high-temperature seal adhesive be melted into liquid after, coolingly make it be jelly shape, in the first aramid fiber cellular board 10 and the second aramid fiber cellular board 20 one end that contacts with flexible isolating layer 30, coat respectively high-strength epoxy structure glue, then the first aramid fiber cellular board 10 and the second aramid fiber cellular board 20 are pressed into respectively to the rubber both ends of the surface that are jelly shape, after cooling, jelly shape glue becomes flexible isolating layer 30 admittedly; Its integral body stretches and is fixed on the mould of specific curvature along L direction afterwards, uses high temperature resistant nylon line to be fixed on mould through aramid fiber honeycomb core checkerwork cell simultaneously, and the radius of curvature of mould is identical with designing requirement curvature honeycomb core radius; And the aramid paper honeycomb fixing solidify is processed together with mould impregnation, until aramid fiber cellular densities reaches desired density, then send into drying room and solidify; The aramid fiber comb core being cured takes off from mould, cuts out and removes nylon wire, makes the deep camber aramid paper honeycomb core plate that can be used for many curved surface interlayers structural composite material; Wherein, in manufacturing process, in order to prevent the blocked up mechanical property that affects aramid fiber cellular board of rubber layer, generally the thickness of the first aramid fiber cellular board 10 and the second aramid fiber cellular board 20 is arranged to equal state, and to make the thickness of flexible isolating layer 30 be 1/4th of the first aramid fiber cellular board 10 thickness.
As the preferred version of this case, the length of run of the first aramid fiber cellular board 10 is greater than the length of run of the second aramid fiber cellular board 20.
Further, the thickness that the first aramid fiber cellular board 10 embeds flexible isolating layer 30 is 2.85mm, the thickness that the second aramid fiber cellular board 20 embeds described flexible isolating layer 30 is 1.8mm, and the end face that the first aramid fiber cellular board 10 and the second aramid fiber cellular board 20 deviate from described flexible isolating layer 30 is equipped with respectively a carbon fiber skin or glass fibre covering 50,40.
The utility model has the advantage of: the utility model arranges one deck flexible isolating layer 30 between the first aramid fiber cellular board 10 and the second aramid fiber cellular board 20, active force during by flexible isolating layer 30 buffering the first aramid fiber cellular board 10 and the second aramid fiber cellular board 20 brake forming between aramid fiber cellular node, the problem of avoiding aramid fiber cellular node to rupture, and the first aramid fiber cellular board 10 and the second aramid fiber cellular board 20 are embedded in flexible isolating layer 30 with flexible isolating layer 30 contact-segment, simultaneously, at the first aramid fiber cellular board 10 and the second aramid fiber cellular board 20, scribbling respectively high-strength epoxy structure glue-line with flexible isolating layer 30 bonding end coheres, not only can effectively prevent the first aramid fiber cellular board 10 and flexible isolating layer 30, the de-problem of splitting between the second aramid fiber cellular board 20 and flexible isolating layer, and can effectively strengthen the cellular node intensity of the first aramid fiber cellular board 10 and the second aramid fiber cellular board 20, avoid it when brake forming, to rupture, thereby the mechanical property of aviation composite product and the integrality of structure have been guaranteed, and in order to ensure and reduce the impact of flexible isolating layer 30 on aramid fiber cellular board mechanical property, the thickness of the first aramid fiber cellular board 10 of the present utility model: the thickness of flexible isolating layer 30: the thickness of the second aramid fiber cellular board 20 is 2:0.5:2, experimental data shows that, under above-mentioned thickness proportion, it can be kept at the mechanical property of existing aramid fiber cellular board 98%.
In sum, be only the preferred embodiment of the utility model, with this, do not limit protection domain of the present utility model, all equivalences of doing according to the utility model the scope of the claims and description change and modify, within being all the scope that the utility model patent contains.
Claims (7)
1. a double sandwich structure deep camber aramid fiber honeycomb core plate, comprise the first aramid fiber cellular board and the second aramid fiber cellular board that are identical arc, it is characterized in that: between the first described aramid fiber cellular board and the second aramid fiber cellular board, be provided with a flexible isolating layer, and the first described aramid fiber cellular board and this flexible isolating layer adopt high-strength epoxy structure glue-line bonding, the second described aramid fiber cellular board and this flexible isolating layer adopt high-strength epoxy structure glue-line bonding.
2. a kind of double sandwich structure deep camber aramid fiber honeycomb core plate as claimed in claim 1, is characterized in that: described flexible isolating layer is polyurethanes glue-line.
3. a kind of double sandwich structure deep camber aramid fiber honeycomb core plate as claimed in claim 1, is characterized in that: the length of run of the first described aramid fiber cellular board is greater than the length of run of the second aramid fiber cellular board.
4. a kind of double sandwich structure deep camber aramid fiber honeycomb core plate as claimed in claim 1, is characterized in that: the thickness that the first described aramid fiber cellular board embeds described flexible isolating layer is 2.85mm.
5. a kind of double sandwich structure deep camber aramid fiber honeycomb core plate as claimed in claim 4, is characterized in that: the thickness that the second described aramid fiber cellular board embeds described flexible isolating layer is 1.8mm.
6. a kind of double sandwich structure deep camber aramid fiber honeycomb core plate as claimed in claim 3, is characterized in that: the end face that the first described aramid fiber cellular board and the second aramid fiber cellular board deviate from described flexible isolating layer is equipped with respectively a carbon fiber skin or glass fibre covering.
7. a kind of double sandwich structure deep camber aramid fiber honeycomb core plate as claimed in claim 1, is characterized in that: the thickness of the first described aramid fiber cellular board: the thickness of flexible isolating layer: the thickness of the second aramid fiber cellular board is 2:0.5:2.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105599416A (en) * | 2015-09-02 | 2016-05-25 | 哈尔滨飞机工业集团有限责任公司 | Large curvature metal panel sandwich part forming dent prevention method |
| CN106393915A (en) * | 2016-08-31 | 2017-02-15 | 西安立远新材料科技开发有限公司 | Anti-collision board and manufacturing method thereof |
| CN108773120A (en) * | 2018-06-07 | 2018-11-09 | 超美斯新材料股份有限公司 | High intensity aramid fiber paper sandwich composite construction and its manufacturing method |
| CN109049912A (en) * | 2018-09-26 | 2018-12-21 | 澳科利高新技术（无锡）有限公司 | Honeycomb composite roll and its processing method |
| CN111391417A (en) * | 2020-03-16 | 2020-07-10 | 哈尔滨工业大学 | Novel honeycomb structure and honeycomb energy-absorbing piece |
-
2014
- 2014-08-13 CN CN201420453502.5U patent/CN203994889U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105599416A (en) * | 2015-09-02 | 2016-05-25 | 哈尔滨飞机工业集团有限责任公司 | Large curvature metal panel sandwich part forming dent prevention method |
| CN105599416B (en) * | 2015-09-02 | 2018-03-02 | 哈尔滨飞机工业集团有限责任公司 | A kind of big curvature metal decking interlayer part shaping indenture prevention method |
| CN106393915A (en) * | 2016-08-31 | 2017-02-15 | 西安立远新材料科技开发有限公司 | Anti-collision board and manufacturing method thereof |
| CN108773120A (en) * | 2018-06-07 | 2018-11-09 | 超美斯新材料股份有限公司 | High intensity aramid fiber paper sandwich composite construction and its manufacturing method |
| CN108773120B (en) * | 2018-06-07 | 2021-01-19 | 超美斯新材料股份有限公司 | High-strength aramid fiber paper sandwich composite structure and manufacturing method thereof |
| CN109049912A (en) * | 2018-09-26 | 2018-12-21 | 澳科利高新技术（无锡）有限公司 | Honeycomb composite roll and its processing method |
| CN111391417A (en) * | 2020-03-16 | 2020-07-10 | 哈尔滨工业大学 | Novel honeycomb structure and honeycomb energy-absorbing piece |
| CN111391417B (en) * | 2020-03-16 | 2022-10-11 | 哈尔滨工业大学 | Honeycomb structure and honeycomb energy absorption piece |
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Effective date of registration: 20161118 Address after: Taoyuan road in Xiuzhou District of Jiaxing City, Zhejiang Province, No. 522 310000 Patentee after: Jiaxing Yagang Composite Materials Co Ltd Address before: No. 393, Zi Lu, Xiuzhou District, Zhejiang, Jiaxing Patentee before: Ya Kong (Jiaxing) composite material Co., Ltd. |