CN105082557B - The manufacturing method of grid - Google Patents
The manufacturing method of grid Download PDFInfo
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- CN105082557B CN105082557B CN201410191492.7A CN201410191492A CN105082557B CN 105082557 B CN105082557 B CN 105082557B CN 201410191492 A CN201410191492 A CN 201410191492A CN 105082557 B CN105082557 B CN 105082557B
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Abstract
The invention discloses a kind of manufacturing method of grid, which includes：It is laid with carbon fiber prepreg in the mold for manufacturing grid；Metamaterial microstructure layer is formed above the carbon fiber prepreg；It is molded, and resin material is made to enter in the mold；Resin material in the mold is cured, is demoulded later.The present invention by being added carbon fiber and resin material in a mold, and the resin material in mold is cured, grid can not only be made to have ideal intensity and the characteristic of forming, and grid can be allowed to show better characteristics when in face of electromagnetic wave, in addition, the density for the grid that method through the invention manufactures can be controlled in relatively low range, therefore, the weight that grid will not be dramatically increased ensure that the portability of grid, makes grid easy to process and transports.
Description
Technical field
The present invention relates to grid fields, it particularly relates to the grid and its manufacturing method of a kind of composite material.
Background technology
Currently, as the application field of air-inlet grille is more and more extensive (especially applying on a vehicle) so that market
Requirement for air-inlet grille is also higher and higher.And in most cases, grid is all installed in the air inlet of the vehicles
Place, to realize good air inlet and the heat sinking function of the vehicles.
Currently, the processing method that air-inlet grille mainly uses is the technique of injection molding, and processed using the process
The molding of air-inlet grille generally existing when be easy buckling deformation and the relatively low problem of the product intensity that processes, and as application is led
Requirement of the domain to air-inlet grille is higher and higher, and (such as structure complexity is high, intensity is high, specific modulus is big, fatigue performance is good, heat-resisting
Antioxygenic property is good etc.), the air-inlet grille processed using injection molding process obviously cannot meet market for grid
It is required that.
Therefore, for the problem that grid forming degree is bad in the related technology, intensity is not high, effective solution is not yet proposed at present
Certainly scheme.
Invention content
It is easily deformed for grid in the related technology, the problem that intensity is not high, the present invention proposes a kind of manufacturer of grid
Method can effectively improve the intensity of grid.
The technical proposal of the invention is realized in this way：
According to an aspect of the invention, there is provided a kind of manufacturing method of grid.
The manufacturing method of the grid includes：
It is laid with carbon fiber prepreg in the mold for manufacturing grid；
Metamaterial microstructure layer is formed above the carbon fiber prepreg；
It is molded, and resin material is made to enter in the mold；
Resin material in the mold is cured, is demoulded later.
Wherein, before forming carbon fiber prepreg, releasing agent can be coated in above-mentioned mold.
Also, after forming above-mentioned metamaterial microstructure layer, it is laid with reinforcing fiber above the metamaterial microstructure layer,
Wherein, which can be aramid fiber yarn, aramid fabric, quartz fabric or glass-fiber-fabric, can also be their arbitrary combination.
In addition, before being molded, flow-guiding screen and/or airfelt can be laid in above-mentioned mold.
In addition, when making resin material enter in above-mentioned mold, the resin material can be injected by way of injection molding
In the mold, the intracavitary of above-mentioned mold can also be made to be formed by way of the mold is placed in vacuum bag and is vacuumized
Negative pressure is to suck the resin material in above-mentioned mold.
In addition, when curing to the resin material in above-mentioned mold, it can be scheduled by the way that the mold to be heated to
Solidification temperature, and after keeping the solidification temperature predetermined hold-time, then above-mentioned resin material is cured, wherein this is predetermined
Solidification temperature be 100 DEG C -200 DEG C spend, the predetermined time be 1-20 hours.
Also, it is demoulded again after the mold is cooled above-mentioned.
Wherein, wave absorbing agent is added in above-mentioned resin material, also, the wave absorbing agent can be nanometer ferrite, Nanoscale Iron
Powder, nano-cobalt powder, nano-nickel powder, nano lanthanide metal powder or one kind in carbonyl iron dust or their arbitrary combination.
Also, above-mentioned resin material can be thermosetting resin, can also be thermoplastic resin, wherein for thermosetting property
Resin, it can be epoxy resin, polyester resin, phenolic resin, cyanate ester resin, bimaleimide resin, melamine
One kind in formaldehyde resin, furane resins, organic siliconresin or polybutadiene or their arbitrary combination；And thermoplastic resin
Fat can be polyethylene, polypropylene, polyvinyl chloride, polystyrene, polymethyl methacrylate, polyester, polyformaldehyde, polyamide or
One kind in polyphenylene oxide or their arbitrary combination.
In addition, above-mentioned resin material further includes curing agent, also, the curing agent can be aliphatic amine curing agent, virtue
Fragrant race's amine curing agent, amide groups amine curing agent, acid anhydride type curing agent, phenolic curing agent, synthetic resin curing agent or
One kind in latent curing agent or their arbitrary combination.
In addition, above-mentioned carbon fiber prepreg can be unidirectional carbon prepreg, can also be multidirectional carbon fiber prepreg.
The present invention cures by the way that carbon fiber and resin material are added in a mold, and to the resin material in mold,
Grid can not only be made to have ideal intensity and the characteristic of forming, avoid the problem that grid warpage phenotype, and can allow
Grid shows better characteristics when in face of electromagnetic wave, in addition, the density of the grid of method manufacture through the invention can be with
It is controlled in relatively low range, therefore, the weight of grid will not be dramatically increased, ensure that the portability of grid, allows grid convenient for adding
Work and transport.
Description of the drawings
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the present invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the flow chart of the manufacturing method of grid according to the ... of the embodiment of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained belong to what the present invention protected
Range.
According to an embodiment of the invention, a kind of manufacturing method of grid is provided.
As shown in Figure 1, Grilte manufacturing method according to the ... of the embodiment of the present invention includes：
Step S101 is laid with carbon fiber prepreg in the mold for manufacturing grid；
Step S103 forms metamaterial microstructure layer above above-mentioned carbon fiber prepreg；
Step S105, is molded, and resin material is made to enter in above-mentioned mold；
Step S107 cures the resin material in above-mentioned mold, is demoulded later.
Above-mentioned processing through the invention can allow carbon fiber and metamaterial microstructure layer to enter grid, and allow carbon fiber
Peacekeeping metamaterial microstructure layer becomes a part for grid, to improve the mechanical strength of grid, and is effectively improved grid
Electromagnetic performance.Also, since carbon fiber prepreg is laid in grid in advance so that enter mold in follow-up moulding technology
Material be preferably attached on carbon fiber, to which grid can be preferably molded, avoid the warpage of grid.
In one embodiment, before forming carbon fiber prepreg, releasing agent can be coated in above-mentioned mold, to side
Just the completion of knockout course improves the surface smoothness of grid.
It in another embodiment, can be above the metamaterial microstructure after forming above-mentioned metamaterial microstructure layer
It is laid with the intensity that reinforcing fiber carrys out enhanced grid, wherein the reinforcing fiber can be aramid fiber yarn, aramid fabric, quartz fabric or glass
Cloth can also be their arbitrary combination.It should be noted that in the present invention, for above-mentioned reinforcing fiber type not
It limits, can also be unrequited other relevant reinforcing fibers.
In addition, in one embodiment, before being molded, further flow-guiding screen can be laid in above-mentioned mold
And/or airfelt.
In addition, in one embodiment, it is the side by injection molding to allow the mode that resin material enters in above-mentioned mold
Formula injects above-mentioned resin material in the mold；Alternatively, can also be by the way that the mold is placed in vacuum bag and is vacuumized,
So that the intracavitary of the mold is formed the mode of negative pressure, above-mentioned resin material is sucked in the mold；Alternatively, allow in process conditions
In the case of, can combine makes resin enter in mold by the way of above-mentioned injection molding and plastic uptake.
Also, in the above-described embodiments, which is thermosetting resin or thermoplastic resin, wherein the thermosetting property
Resin can be epoxy resin, polyester resin, phenolic resin, cyanate ester resin, bimaleimide resin, melamino-formaldehyde
Resin, furane resins, organic siliconresin or polybutadiene can also be their arbitrary combination；And thermoplastic resin can
To be polyethylene, polypropylene, polyvinyl chloride, polystyrene, polymethyl methacrylate, polyester, polyformaldehyde, polyamide or polyphenyl
Can also be their arbitrary combination in ether.
In addition, in order to ensure that manufactured grid has good absorbing property, it can be added in the resin material and inhale wave
Agent, also, for the ingredient of the wave absorbing agent, wave absorbing agent can be composed of one or more of：Nanoscale Iron
Oxysome, nanometer iron powder, nano-cobalt powder, nano-nickel powder, nano lanthanide metal powder or carbonyl iron dust.
In addition, further including curing agent in the resin material, wherein and for the ingredient of the curing agent, it can be
It is composed of one or more of：Aliphatic amine curing agent, aromatic amine curing agent, amide groups amine curing agent,
Acid anhydride type curing agent, phenolic curing agent, synthetic resin curing agent or latent curing agent.
In addition, when curing the resin material in the mold, need above-mentioned mold being heated to scheduled solidification
Temperature (solidification temperature can be spent within the scope of 100 DEG C -200 DEG C), and keep the solidification temperature predetermined hold-time (this is pre-
Fixing time can be in 1-20 hours range), later, wait for above-mentioned to be demoulded after the mold is cooled.
Optionally, above-mentioned carbon fiber prepreg can be unidirectional carbon prepreg, can also be multidirectional carbon fibre initial rinse
Material.
In the grid manufactured by the above method, carbon fiber layer (alternatively referred to as carbon fiber shielding layer) is contained, due to
Carbon fiber can reflect the incident electromagnetic wave of low frequency, and to make, grid has good electromagnetic wave shielding effect and material increases
Pretend use.And for metamaterial microstructure layer (Meta Materials inhale wave layer), may include molded substrate, wave absorbing agent and the micro- knot of Meta Materials
Structure, wherein metamaterial microstructure can be made of metal or other conductive materials, have certain plane or spatial geometric shape,
And it is arranged according to certain rule, since metamaterial microstructure layer can absorb frequency electromagnetic waves, to make grid become one
The composite material of kind high intensity.Wherein, metamaterial microstructure can just process in advance and be attached on film (molded substrate) from
And metamaterial microstructure layer is formed, which can be Pi films.
Manufacturing method proposed by the invention can be used for manufacturing various grids, for example, the grid can be used for being mounted on
At air inlet, and the present invention is not limited thereto, in fact, the solution of the present invention can manufacture the grid for multiple use, lattice
The parameters such as size, the mechanical strength of grid can be adjusted according to actual conditions.
For example, for manufacturing air-inlet grille, grid can be manufactured according to the following steps (it should be noted that following
The step of description only specific example, method described below is equally referred to for the grid of other purposes,
Part processing step therein can be adjusted, and technological parameter disclosed below equally can flexibly change)：
Firstly, it is necessary to install the design that grid three-dimensional digital-to-analogue carries out mold；
Then, assembly mold, and releasing agent is coated in die surface, it is conveniently stripped；
Then, it (can certainly be multidirectional carbon fibre initial rinse unidirectional carbon prepreg to be laid between mold grid
Material), and reach the laying depth of requirement；
Then metamaterial microstructure film is re-layed, reinforcing fiber is then laid with, then spreads flow-guiding screen, airfelt, and
It is molded；
Then entire mold is put into vacuum bag and is vacuumized, to form negative pressure in mold cavity, then will be ready to
Suction wave resin sucked in die cavity through diversion pipe, and wetting fibre；
In addition it is also possible to which above-mentioned ready suction wave resin is injected in the mold by way of injection molding；
Wherein, which includes fiber-reinforced resin, wave absorbing agent, curing agent；
Then, the entire mold of injection suction wave resin is put into oven and is heating and curing, wherein solidification temperature is 140 DEG C
Degree, hardening time are 16 hours；
Finally, 60 DEG C of degree are naturally cooled to after the completion of to be solidified to be demoulded, and metal grizzly bar is sloughed into (wherein, metal
Grizzly bar can be a part for mold, for controlling grid air admission hole size), wherein carbon fiber layer inhales wave layer with composite material
It is bonded together, so as to complete the whole technological forming for firing scattered grid.
In conclusion by means of the above-mentioned technical proposal of the present invention, by the way that carbon fiber and resin material are added in a mold,
And the resin material in mold is cured, grid can not only be made to have ideal intensity and the characteristic of forming, and
Grid can be allowed to show better characteristics when in face of electromagnetic wave, in addition, the grid that method through the invention manufactures is close
Degree can be controlled in relatively low range, therefore, will not dramatically increase the weight of grid, ensure that the portability of grid, allow grid
Easy to process and transport.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (13)
1. a kind of manufacturing method of grid, which is characterized in that including：
It is laid with carbon fiber prepreg in the mold for manufacturing grid；
Metamaterial microstructure layer is formed above the carbon fiber prepreg, wherein the metamaterial microstructure layer includes：Molding
Base material, wave absorbing agent and metamaterial microstructure；
It is molded, and resin material is made to enter in the mold；
Resin material in the mold is cured, is demoulded later.
2. manufacturing method according to claim 1, which is characterized in that after forming the metamaterial microstructure layer, institute
Manufacturing method is stated to further comprise：
It is laid with reinforcing fiber above the metamaterial microstructure layer.
3. manufacturing method according to claim 2, which is characterized in that the reinforcing fiber includes aramid fiber yarn, aramid fabric, stone
One kind in English cloth or glass-fiber-fabric or their arbitrary combination.
4. manufacturing method according to claim 1, which is characterized in that before being molded, the manufacturing method is into one
Step includes：
It is laid with flow-guiding screen and/or airfelt in the mould.
5. manufacturing method according to claim 1, which is characterized in that it includes following so that resin material is entered in the mold
At least one：
The resin material is injected in the mold by way of injection molding；
The mold is placed in vacuum bag and is vacuumized, the intracavitary of the mold is made to form negative pressure and by the resin material
It sucks in the mold.
6. manufacturing method according to claim 1, which is characterized in that carry out solidification packet to the resin material in the mold
It includes：
The mold is heated to scheduled solidification temperature, and after keeping the solidification temperature predetermined hold-time.
7. manufacturing method according to claim 1, which is characterized in that demoulded after the mold is cooled described in waiting for.
8. manufacturing method according to claim 1, which is characterized in that be added with wave absorbing agent in the resin material.
9. manufacturing method according to claim 1, which is characterized in that the resin material is thermosetting resin or thermoplasticity
Resin.
10. manufacturing method according to claim 9, which is characterized in that the thermosetting resin includes epoxy resin, polyester
Resin, phenolic resin, cyanate ester resin, bimaleimide resin, melamine resin, furane resins, organosilicon tree
One kind in fat or polybutadiene or their arbitrary combination.
11. manufacturing method according to claim 9, which is characterized in that the resin material further comprises curing agent,
The curing agent includes aliphatic amine curing agent, aromatic amine curing agent, amide groups amine curing agent, anhydride solidification
Agent, phenolic curing agent, synthetic resin curing agent or one kind in latent curing agent or their arbitrary combination.
12. manufacturing method according to claim 9, which is characterized in that the thermoplastic resin includes polyethylene, poly- third
One kind in alkene, polyvinyl chloride, polystyrene, polymethyl methacrylate, polyester, polyformaldehyde, polyamide or polyphenylene oxide or it
Arbitrary combination.
13. manufacturing method according to claim 1, which is characterized in that the carbon fiber prepreg is that unidirectional carbon is pre-
Leaching material or multidirectional carbon fiber prepreg.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410191492.7A CN105082557B (en) | 2014-05-07 | 2014-05-07 | The manufacturing method of grid |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410191492.7A CN105082557B (en) | 2014-05-07 | 2014-05-07 | The manufacturing method of grid |
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| CN105082557B true CN105082557B (en) | 2018-11-06 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105954328B (en) * | 2016-04-19 | 2018-08-28 | 浙江大学 | A kind of unidirectional automated manufacturing device of carbon fiber sensor sensing member |
| CN108242588B (en) * | 2016-12-23 | 2021-07-06 | 深圳光启高等理工研究院 | Anti-salt fog antenna and preparation method thereof |
| CN106853694A (en) * | 2017-02-21 | 2017-06-16 | 江苏恒神股份有限公司 | The preparation method of the SQRTM moulding process carbon fiber grilles based on water-soluble core |
| CN108943887B (en) * | 2017-09-22 | 2020-08-04 | 中国航空工业集团公司基础技术研究院 | Composite material with multi-element combined microstructure surface and preparation method thereof |
| CN109457685A (en) * | 2018-09-28 | 2019-03-12 | 李宏福 | A kind of thermoplastic molding grating, preparation method, application and its intermediary material |
| CN112297479A (en) * | 2020-11-25 | 2021-02-02 | 袁铭 | Manufacturing process of grating plate for water treatment |
| CN117261809A (en) * | 2023-11-10 | 2023-12-22 | 江苏平安汽车部件有限公司 | High-strength vehicle front face mask grille assembly and manufacturing method |
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| CN101456394A (en) * | 2007-12-13 | 2009-06-17 | 现代自动车株式会社 | Method of manufacturing radiator grill for vehicle |
| CN101649105A (en) * | 2009-09-22 | 2010-02-17 | 中格复合材料（南通）有限公司 | Phenolic glass reinforced plastic grille |
| CN101885215A (en) * | 2009-05-12 | 2010-11-17 | 上海复合材料科技有限公司 | Forming method of composite material leaf grille for controlling speed of aviation aircraft |
| CN102476456A (en) * | 2011-06-29 | 2012-05-30 | 深圳光启高等理工研究院 | Dielectric substrate preparation method and metamaterial |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP6067290B2 (en) * | 2011-09-13 | 2017-01-25 | 旭化成株式会社 | Metamaterial transfer laminate and method for producing metamaterial transferred substrate |
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Patent Citations (4)
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|---|---|---|---|---|
| CN101456394A (en) * | 2007-12-13 | 2009-06-17 | 现代自动车株式会社 | Method of manufacturing radiator grill for vehicle |
| CN101885215A (en) * | 2009-05-12 | 2010-11-17 | 上海复合材料科技有限公司 | Forming method of composite material leaf grille for controlling speed of aviation aircraft |
| CN101649105A (en) * | 2009-09-22 | 2010-02-17 | 中格复合材料（南通）有限公司 | Phenolic glass reinforced plastic grille |
| CN102476456A (en) * | 2011-06-29 | 2012-05-30 | 深圳光启高等理工研究院 | Dielectric substrate preparation method and metamaterial |
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| CN105082557A (en) | 2015-11-25 |
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Effective date of registration: 20200422 Address after: 518000 4th floor, software building, No.9, Gaoxin middle 1st Road, Nanshan District, Shenzhen City, Guangdong Province Patentee after: KUANG-CHI CUTTING EDGE TECHNOLOGY Ltd. Address before: 518034. A, 18B, CIC international business center, 1061 Mei Xiang Road, Shenzhen, Guangdong, Futian District Patentee before: KUANG-CHI INNOVATIVE TECHNOLOGY Ltd. |
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