CN110561775A - Preparation method of metamaterial sample piece - Google Patents
Preparation method of metamaterial sample piece Download PDFInfo
- Publication number
- CN110561775A CN110561775A CN201910691698.9A CN201910691698A CN110561775A CN 110561775 A CN110561775 A CN 110561775A CN 201910691698 A CN201910691698 A CN 201910691698A CN 110561775 A CN110561775 A CN 110561775A
- Authority
- CN
- China
- Prior art keywords
- metamaterial
- skin
- honeycomb
- clad plate
- copper
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/34—Electrical apparatus, e.g. sparking plugs or parts thereof
- B29L2031/3456—Antennas, e.g. radomes
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
Abstract
The invention belongs to the field of manufacturing of aviation composite materials, and particularly relates to a preparation method of a metamaterial sample. Firstly, adding a positioning pattern in a margin area of a metamaterial etching copper-clad plate according to a metamaterial design scheme; laying a prepreg and an etched copper-clad plate according to the metamaterial design, compacting at room temperature by laying one etched copper-clad plate layer each time, fixing by adopting adhesion, and curing the metamaterial skin; then, after the metamaterial skin material is prepared, cutting the metamaterial skin according to the cutting line of the metamaterial skin; and finally, aligning the metamaterial skin and the honeycomb, gluing the metamaterial skin and the honeycomb, and obtaining the metamaterial sample piece after the gluing is finished. The method provided by the invention solves the alignment problem of the metamaterial skin, and improves the electromagnetic regulation and control capability of the metamaterial.
Description
Technical Field
The invention belongs to the field of manufacturing of aviation composite materials, and particularly relates to a preparation method of a metamaterial sample.
background
The metamaterial has the characteristic that the resonance frequency of the artificial electric resonator and the magnetic resonator can be controlled by adjusting the shape and the size of the microstructure unit, so that the electromagnetic response of frequency selection required in an ultra-wide frequency band (from GHz to optical frequency band) is obtained. Therefore, the method is applied to the radome, the bandwidth is expanded, the frequency band cut-off is increased, and the like, and the method is one of the main directions of the radome technology development.
In the preparation process of the metamaterial antenna housing, in order to control electromagnetic resonance, a plurality of layers of structural units with metal structural units are arranged in the metamaterial antenna housing, and the space of the metal structural units forms certain arrangement. And generally, an etched copper-clad plate is adopted as a metal structural unit carrier, and the etched copper-clad plate is mixed with a composite material to form control of electromagnetic resonance.
In the preparation process of the metamaterial, the position corresponding relation between etched copper clad laminate layers needs to be controlled, if the copper clad laminate is positioned by the positioning pin, the requirement on the positioning precision of the metamaterial cannot be met, and the effective positioning cannot be formed by the existing positioning method due to the fact that the etched copper clad laminate is small in thickness and low in rigidity.
disclosure of Invention
the purpose of the invention is as follows: in order to solve the positioning problem in the process of preparing a metamaterial flat plate, a metamaterial preparation process method is provided.
the technical scheme is as follows: a metamaterial sample preparation method is characterized in that in the etching process of a metamaterial etching copper-clad plate, positioning patterns are arranged in a margin area of the metamaterial etching copper-clad plate, the positioning patterns are fixed in positions of the etching copper-clad plate according to the same reference, in the metamaterial preparation process, etching copper-clad plate prepreg and the laid etching copper-clad plate are sequentially laid according to the metamaterial structure design, and the laid etching copper-clad plate is fixed by a pressure-sensitive adhesive tape.
and (3) laying the multilayer etched copper clad laminate and the prepreg according to the method, and curing the prepreg after laying.
Preparing the metamaterial skin material according to the method, and then carrying out the cementing of the metamaterial skin material and the honeycomb material.
The gluing method comprises the following steps: etching and positioning a boundary line at the edge of the metamaterial skin material, then processing the metamaterial skin material according to the positioning boundary line, and finally preparing the C interlayer metamaterial.
the method comprises the following concrete steps:
step one, adding a positioning pattern in a margin area of a metamaterial etching copper-clad plate according to a metamaterial design scheme. The positioning patterns can be mutually overlapped when the metamaterial etching copper-clad plate is positioned;
Laying the prepreg and the etched copper-clad plate according to the metamaterial design, compacting at room temperature once when one etched copper-clad plate is laid, fixing by adopting adhesive, and curing the metamaterial skin;
After the metamaterial skin material is prepared, cutting the metamaterial skin according to the cutting line of the metamaterial skin;
And step four, performing glue joint on the metamaterial skin and the honeycomb by taking the edge of the baffle as a reference, and obtaining the metamaterial sample piece after the glue joint is completed.
The beneficial technical effects are as follows: the metamaterial preparation process method solves the alignment problem of etching copper clad laminate layers in the metamaterial skin in the metamaterial preparation process, also solves the alignment problem of the metamaterial skin in the metamaterial preparation process, improves the electromagnetic regulation and control capability of the metamaterial, and has great practical application value. The invention has certain application value in the technical field of aeronautical manufacturing and has certain economic benefit.
Drawings
Figure 1 is a schematic view of the structure of a metal screen,
figure 2 is a schematic structural view of a metamaterial skin,
figure 3 is a schematic diagram of bonding a metamaterial skin to a honeycomb,
In the figure, 1 is an alignment pattern, 2 is an etching copper-clad plate effective area boundary line, 3 is an etching copper-clad plate alignment pattern, 4 is a metamaterial lower skin, 5 is a first honeycomb, 6 is a metamaterial middle skin, 7 is a second honeycomb, 8 is a metamaterial upper skin, 9 is a mold pressing plate, 10 is a mold baffle, and 11 is a metamaterial skin cutting line.
Detailed Description
The invention provides a metamaterial preparation process method; the method uses the positioning pattern to position the in-layer etched copper-clad plate, and then uses a mechanical mode to position the interlayer metamaterial skin material.
the invention provides a preparation process method of a metamaterial flat plate, which is characterized in that in the process of designing the metamaterial flat plate, process positioning measures are designed outside an effective area of an etched copper-clad plate metal structure unit, and the etched copper-clad plate interlayer is positioned to form a space structure electromagnetic regulation function in the process of manufacturing a metamaterial.
According to the method, the position of the first layer of etched copper-clad plate is determined, then the subsequent etched copper-clad plate and the first layer of etched copper-clad plate are positioned, and a space structure is formed between layers for positioning, so that the problem that the electromagnetic regulation of the metamaterial is poor due to the position deviation between the etched copper-clad plates is solved, the electromagnetic regulation capability of the metamaterial is improved, and the electromagnetic performance of the metamaterial is improved.
The invention aims at the problem that the electromagnetic resonance regulation and control of the multilayer etched copper-clad plate in the composite material are achieved by periodically arranging metal structural units, and the electromagnetic resonance regulation and control of the periodic arrangement of different metal structural units are different. Due to the electromagnetic regulation and control characteristic of the metamaterial, a multi-layer etching copper-clad plate is required to be used as an electromagnetic regulation and control unit, and in the preparation process of the metamaterial containing a millimeter-scale metal structure unit, each layer of etching copper-clad plate is required to be positioned, so that the etching copper-clad plate is positioned by a multi-standard relative positioning method.
Therefore, through analysis, the multi-standard relative positioning method is adopted to position the multi-layer etched copper-clad plate for the metamaterial, so that the positioning precision of the layered metamaterial during positioning is improved, and the application requirement of the metamaterial is met.
For a C interlayer metamaterial composed of three layers of metamaterial skins and two layers of honeycombs, each layer of skin is a metamaterial flat plate composed of three layers of etched copper-clad plates and three layers of prepregs, and the preparation process is as follows:
1. Arranging an alignment pattern outside an effective etching copper clad laminate area in the metamaterial skin layer, and etching all copper clad laminates outside the alignment pattern during etching so as to facilitate the alignment of the etching copper clad laminate;
2. Laying a prepreg and an etched copper-clad plate according to the metamaterial design, vacuumizing and compacting once at room temperature when one etched copper-clad plate is laid, fixing the etched copper-clad plate by using a pressure-sensitive adhesive tape, and curing a metamaterial skin after the three etched copper-clad plates and the three prepreg are laid;
3. After the metamaterial skin material is prepared, removing the allowance outside the metamaterial skin material cutting line;
4. And aligning the metamaterial skin with the mold baffle by taking the inner edge of the mold baffle as a reference, positioning the metamaterial skin, and then gluing to complete the preparation of the metamaterial sample.
Claims (8)
1. A metamaterial sample preparation method is characterized by comprising the following steps:
adding a positioning pattern in a margin area of a metamaterial etching copper-clad plate according to a metamaterial design scheme;
Laying the prepreg and the etched copper-clad plate according to the metamaterial design, compacting at room temperature by laying one layer of etched copper-clad plate, fixing by adopting adhesive, and curing the metamaterial skin;
After the metamaterial skin material is prepared, cutting the metamaterial skin according to the cutting line of the metamaterial skin;
And step four, aligning the metamaterial skin and the honeycomb, gluing the metamaterial skin and the honeycomb, and obtaining the metamaterial sample piece after the gluing is finished.
2. the method for preparing a metamaterial sample piece as claimed in claim 1, wherein the positioning patterns can be overlapped with each other when positioning the metamaterial etched copper clad laminate.
3. the method for preparing the metamaterial sample piece as claimed in claim 1, wherein the cutting lines in the third step are based on the drawn lines on the edges of the metal screen of the metamaterial skin.
4. The method for preparing the metamaterial sample piece as claimed in claim 1, wherein in the fourth step, the metamaterial skin and the honeycomb are in a multilayer laying structure, and the honeycomb is arranged between every two layers of the metamaterial skin.
5. The method for preparing the metamaterial sample piece as claimed in claim 1 or 4, wherein the metamaterial skin and the honeycomb adhesive are bonded in an adhesive film manner.
6. The method as claimed in claim 5, wherein the adhesive film is FN305 adhesive.
7. the method of claim 1, wherein the metamaterial skin is aligned with the honeycomb by providing a mold.
8. the method of claim 7, wherein the mold comprises at least a baffle and a platen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910691698.9A CN110561775A (en) | 2019-07-26 | 2019-07-26 | Preparation method of metamaterial sample piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910691698.9A CN110561775A (en) | 2019-07-26 | 2019-07-26 | Preparation method of metamaterial sample piece |
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| Publication Number | Publication Date |
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| CN110561775A true CN110561775A (en) | 2019-12-13 |
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Family Applications (1)
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| CN201910691698.9A Pending CN110561775A (en) | 2019-07-26 | 2019-07-26 | Preparation method of metamaterial sample piece |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114683573A (en) * | 2020-12-25 | 2022-07-01 | 上海飞机制造有限公司 | Prepreg paving and fixing device and prepreg paving and fixing method |
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| US8879158B2 (en) * | 2010-07-15 | 2014-11-04 | Electronics And Telecommunications Research Institute | Meta material and method of manufacturing the same |
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2019
- 2019-07-26 CN CN201910691698.9A patent/CN110561775A/en active Pending
Patent Citations (5)
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| US8879158B2 (en) * | 2010-07-15 | 2014-11-04 | Electronics And Telecommunications Research Institute | Meta material and method of manufacturing the same |
| CN103295914A (en) * | 2012-02-29 | 2013-09-11 | 深圳光启创新技术有限公司 | Metamaterial based on ceramic substrates and preparation method thereof |
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| CN107221749A (en) * | 2017-03-31 | 2017-09-29 | 中国航空工业集团公司济南特种结构研究所 | Grapefruit satellite Stealthy reflector Antenna cover based on frequency-selective surfaces and preparation method thereof |
| CN109866496A (en) * | 2017-12-04 | 2019-06-11 | 中国航空工业集团公司济南特种结构研究所 | A kind of frequency selects the preparation method of radome exemplar |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114683573A (en) * | 2020-12-25 | 2022-07-01 | 上海飞机制造有限公司 | Prepreg paving and fixing device and prepreg paving and fixing method |
| CN114683573B (en) * | 2020-12-25 | 2023-08-04 | 上海飞机制造有限公司 | Device and method for laying and fixing prepreg |
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Application publication date: 20191213 |