CN110112569A - A kind of manufacturing method of magnetoelectric composites - Google Patents
A kind of manufacturing method of magnetoelectric composites Download PDFInfo
- Publication number
- CN110112569A CN110112569A CN201910391117.XA CN201910391117A CN110112569A CN 110112569 A CN110112569 A CN 110112569A CN 201910391117 A CN201910391117 A CN 201910391117A CN 110112569 A CN110112569 A CN 110112569A
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- conductive film
- conductor element
- manufacturing
- magnetoelectric composites
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- 238000007639 printing Methods 0.000 claims abstract description 18
- 238000010146 3D printing Methods 0.000 claims abstract description 6
- 238000005187 foaming Methods 0.000 claims description 28
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- 238000007646 gravure printing Methods 0.000 claims description 2
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- 229920002635 polyurethane Polymers 0.000 claims description 2
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 description 1
- 229910002113 barium titanate Inorganic materials 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/02—Refracting or diffracting devices, e.g. lens, prism
- H01Q15/08—Refracting or diffracting devices, e.g. lens, prism formed of solid dielectric material
Abstract
The present invention provides a kind of manufacturing method of new magnetoelectric composites, stablizes controlled magnetoelectric composites to obtain light-weight, dielectric constant.The following steps are included: 1) make several groups conductor element by way of printing, plane printing or 3D printing on film, such film that conductor element is distributed with thereon is known as electrically conductive film；There are blank between each group conductor element on electrically conductive film；2) electrically conductive film is fixed to the inside for the plate being made of expanded material, such inside is known as raw sheet with the plate of electrically conductive film；3) raw sheet is cut along the blank described in step 1, to obtain granular magnetoelectric composites.The manufacturing method of magnetoelectric composites of the invention have many advantages, such as production is simple, cost is relatively low, it is light-weight, be easy to control dielectric property, obtained magnetoelectric composites can be used for the production of the primary lens of dragon.
Description
Technical field
The present invention relates to dielectric material manufacturing fields, more specifically to the dielectric material that can be used for making antenna
Manufacturing field.
Background technique
The primary lens technologies of dragon are proposed based on geometrical optics approach in nineteen forty-four by RKLuneberg, are used as antenna and scatterer
Application, be mainly used for quick scanning system, satellite communication system, automobile collision avoidance radar, radar reflector.
Theoretically, the dielectric constant of the dielectric material for the primary lens of dragon should be that one is deferred to from 2 to 1 from the centre of sphere to outer diameter
Fixed mathematical law consecutive variations.But medium ideal in this way is not present in nature, so commonly using layering in actual design
The discrete spherical shell of design replaces.
To make the actual performance of the primary lens of dragon close to theoretical performance, the producer of a variety of primary lens of dragon is currently existed
Case, such as:
A kind of production method of hemisphere Luneberg lens antenna of CN201510084764.8；
A kind of production method of the primary lens of open-celled structure form dragon of CN201510065135.0；
Extremely low section cylinder Luneberg lens antenna of the CN201610015855.0 based on novel medium filling mode；
The manufacturing method of CN201610393370.5 Luneberg lens antenna；
A kind of Luneberg lens antenna of CN201520112992.7.
Above technical scheme includes: the method for drilling, by the ratio of material volume shared by hole, controls Jie of material
Electric constant, but this method drill hole density and precision are not easy to control, and structure is complicated, and manufacture difficulty is high, weight is not suitable for greatly batch
Production.
It further include having the method successively to foam, based on intermediate ball, the successively foaming of layer-by-layer package, this is most normal at present
A kind of method of ladder dielectric constant foamed material, but either physical blowing or chemical blowing are obtained, is required tight
Lattice control temperature and pressure, usually produce at high temperature and pressure, since the thermal conductivity of foamed material is very low, will form foaming
Non-uniform phenomenon.The technology is complicated, needs special equipment, yield rate is low, and cost is very high.
Entitled " AN ARTIFICIAL DIELECTRIC MATERIAL AND A METHOD OF MANUFACTURING
THE SAME ", Publication No. WO2009078807, publication date disclose a kind of artificial for the patent document on June 25th, 2009
Dielectric material and its manufacturing method, this artificial dielectric can be used for manufacturing the primary lens of dragon.Its technical solution mainly will
The conductive fiber of the length of parallel arrangement is put between two panels foamed material up and down, again by such sandwich after being adhesively fixed
The piece of structure is cut into particle, and the short conductive fiber being not in contact with each other is had in resulting particle, these particles are random
It mixes and is fixed together with adhesive and obtain the controlled dielectric material of dielectric constant.Although Wen Zhongyou refer to should will to the greatest extent can
It is avoided that the end of conductive fiber exposes to particle, using effect at this time is best, but is added simultaneously even if the end of conductive fiber
End exposes to particle, the adverse effect of institute application will also be mixed at random much smaller than current conductive fiber prepared by
Product.
However product and manufacturing method described in the publication are actually the presence of very big defect, on the one hand
It is: physics cutter can only be used during since the conductive fiber grown to be cut into short conductive fiber substantially, if using
Laser cutting tool or chemical cutting tool are adopted then since temperature or chemical action can cause foamed material state to change to maximum probability
If physics cutter, conductive fiber must be to hold by certain power of pullling, especially cutting process before being cut off
The wherein a piece of foamed sheet of physical deformation easily occurs as rebasing, then conductive fiber maximum probability can be drawn out and expose at this time
Grain, although then subsequent mix these particles at random, still have between these particles very big probability occur variable grain it
Between conductive fiber the case where being mutually conducted；On the other hand it is: it is small-sized due to particle, by the sandwich structure
When piece is cut into particle, the used skill in using a kitchen knife in cookery is basically through to the cutting method for adding broadwise, the particle obtained at this time is substantially
Cube or close to cube, at this time may the face of exposed conducting fiber at least just have the faces of 2 opposite arrangements on cube,
Although subsequent is randomly to mix these cubic granules, when due to mixing multiple cubic granules, these cubes
Particle can towards total volume the smallest trend distribution, at this time between variable grain plane develop face probability be it is very high, this is just
Cause between variable grain conductive fiber be mutually conducted this occurrence of probability be still relatively high.That is, this
The randomness of its overall dielectric property in a large amount of use of particle made from quadrat method is still too big, and it is raw not to be suitable for high-volume
The occasion of production.
Then the manufacturing method to existing magnetoelectric composites is needed to improve.
Summary of the invention
The present invention provides a kind of manufacturing method of new magnetoelectric composites, with obtain light-weight, dielectric constant stablize by
The magnetoelectric composites of control.
The following technical solution is employed:
A kind of manufacturing method of magnetoelectric composites, comprising the following steps:
Step 1): several groups conductor element is made by way of printing, plane printing or 3D printing on film, in this way
The film that conductor element is distributed with thereon be known as electrically conductive film；There are blank between each group conductor element on electrically conductive film；
The electrically conductive film: being fixed to the inside for the plate being made of expanded material by step 2), and such inside has conductor
The plate of film is known as raw sheet；
Step 3): cutting raw sheet along the blank described in step 1, to obtain granular magnetoelectric composites.
The granular magnetoelectric composites that technical solution production in this way obtains, internal is to include one group to lead
Body unit, and conductor element will not be cut to when cutting to raw sheet, also just it doesn't matter, and conductor element is pulled
The problem of, and any position of conductor element also will not all expose to surface after the completion of cutting, and then fundamentally prevent
A possibility that conductor element is mutually conducted between grain.The random mixing of a large amount of such particle, overall Jie are carried out at this time
The randomness of electrical characteristics just seems smaller.The several of specific shape are made with a large amount of this magnetoelectric composites in people at this time
He Ti, then people are just easily controlled the dielectric property that this solid is showed.
The film is made of the alap material of dielectric constant, such as polyimides, and the thickness of film should use up
That measures is thin.
Wherein, the method for printing production conductor element may is that conductive coating with silk screen print method or gravure printing method
It is printed on film.Obtained conductor element is the conductor element of plane at this time.
The method of one of plane printing and making conductor element is: conductive coating being directly printed upon film with printer
On.Obtained conductor element is also the conductor element of plane at this time.
The method of one of 3D printing conductor element is: conductive material being constructed solid figure on film with 3D printer
Shape.Obtained conductor element is the conductor element of solid type at this time.
It should be noted that can there was only single conductor in one group of conductor element, it also may include and multiple be mutually not turned on
Conductor.
The conductor can be linear or cyclic annular or multilateral shape.
In addition, on a piece of electrically conductive film another group of conductor element can be different from the pattern of at least one group conductor element
Pattern.
Furthermore multiple groups conductor element can be all made on two faces with a piece of electrically conductive film.And belong on a face
Each group conductor element between blank preferably with the blank between each group conductor element that belongs on another face at least
70% or more area overlapping.
It is by a kind of method that electrically conductive film is fixed to the inside for the plate being made of expanded material: on two faces of electrically conductive film
All coated with adhesive, a face and first foamed board of electrically conductive film are bonded together, another face of electrically conductive film with second
Foamed board is bonded together.Thus constitute three text as " first foamed board --- electrically conductive film ---, second foamed board "
Structure is controlled, first foamed board and second foamed board can be considered the foamed board of an entirety at this time, then electrically conductive film is equivalent to solid
Surely the inside for the plate being made of expanded material has been arrived.
It is by another method that electrically conductive film is fixed to the inside for the plate being made of expanded material: electrically conductive film is laid in one
The bottom of a mold for being used to make foaming plate, closed die simultaneously inject foamed material in the upper surface of electrically conductive film, then carry out
It foams for the first time, electrically conductive film is that then the plate turns on the plate for being fixed on the foaming after the completion of foaming first time
It places into the mold that another is used to make foaming plate and order is fixed with the one side of electrically conductive film upward, closed die is simultaneously infused
Enter foamed material in the upper surface of electrically conductive film, then carries out foaming for second.Electrically conductive film is in two after the completion of foaming for second
Between piece foamed board, then electrically conductive film is equivalent to the inside fixed to the plate being made of expanded material.
The material of the conductor element can be copper, aluminium, silver, alloy, carbon fiber, barium titanate, silicon carbide, graphene, carbon,
The good conductors such as ferrite or semiconductor.
The thickness of the plate of the step 2) preferably exists: 2mm to 20mm.
The foamed material of the step 2) may is that polyethylene, polyurethane, polyphenyl alkene, polystyrene etc. are all expandable
One of solid polymer or a variety of.
The present invention also provides the manufacturing methods of another magnetoelectric composites, comprising the following steps:
Step a): several groups conductor element is made by way of printing, plane printing or 3D printing on film, in this way
The film that conductor element is distributed with thereon be known as electrically conductive film；There are blank between each group conductor element on electrically conductive film；
2 or 2 or more electrically conductive films: being fixed to the inside for the plate being made of expanded material by step b), such interior
Portion is known as raw sheet with the plate of 2 or 2 or more electrically conductive films；Mutually with foamed material point between these electrically conductive films inside the raw sheet
Every, and the area overlapping of the blank of these electrically conductive films at least 70% or more；
Step c): cutting raw sheet along blank described in step a, to obtain granular magnetoelectric composites.
The granular magnetoelectric composites that technical solution production in this way obtains, internal includes at least 2
Group conductor element, and multi-disc electrically conductive film i.e. while being cut open when cutting to raw sheet, will not equally be cut to
Conductor element, the problem of equally being pulled there is no conductor element, and after the completion of cutting conductor element any position not yet
Surface can be exposed to.For magnetoelectric composites obtained in this way after being mixed at random, the randomness of dielectric property is also to compare
Small, its advantage is that the usage amount of adhesive can be reduced in specific application.
In the case where raw sheet includes 2 or 2 or more electrically conductive films, can be led on a piece of electrically conductive film at least one group
The pattern of body unit is different from the pattern of another group of conductor element；In addition there are also a kind of ways of possibility is: belonging to same lead
The each group conductor element of body film is all identical pattern, but the pattern of each group conductor element of at least a piece of electrically conductive film is different from
The pattern of each group conductor element of another electrically conductive film.
It is by a kind of method that 2 or 2 or more electrically conductive films are fixed to the inside for the plate being made of expanded material: at each
All coated with adhesive on two faces of electrically conductive film, separates the arrangement of N+1 piece foamed board then with N piece electrically conductive film, N >=2,
These electrically conductive films and foamed board are sticked with integrally and as raw sheet.Then this N+1 sheet can be considered the plate of an entirety at this time, should
N piece electrically conductive film is equivalent to the inside fixed to the plate being made of expanded material.
The manufacturing method of magnetoelectric composites of the invention have production is simple, cost is relatively low, it is light-weight, be easy to control Jie
The advantages that electrical characteristics, obtained magnetoelectric composites can be used for the production of the primary lens of dragon.
Detailed description of the invention:
Fig. 1 is the structural schematic diagram of the electrically conductive film of embodiment 1；
Fig. 2 is the structural schematic diagram of the raw sheet of embodiment 1；
Fig. 3 A to Fig. 3 G is the structural schematic diagram of the electrically conductive film of possibility；
Fig. 4 is the structural schematic diagram of the electrically conductive film of embodiment 2；
Fig. 5 is the structural schematic diagram of the electrically conductive film of embodiment 3；
Fig. 6 is the structural schematic diagram of the destination media material of embodiment 4；
Fig. 7 is the structural schematic diagram of the raw sheet of embodiment 4.
Description of symbols: 1 film；11- conductor element；12- conductor lines；2- electrically conductive film；First foamed board of 3-；4-
Second foamed board；5- raw sheet；6- film；61- conductor element；62- circular loop conductor；7- electrically conductive film；The first electrically conductive film of 81-；82-
Second electrically conductive film；First foamed board of 91-；Second foamed board of 92-；93- third piece foamed board.
Specific embodiment
The content of present invention is described further below with reference to embodiment.
Embodiment 1
For the dielectric material of cubic granules shape of the present embodiment to make * wide * high ≈ 2mm*2mm*2mm one long.
Its manufacturing method is as follows:
Step 1): made of polyimides with a thickness of printing several groups by silk screen print method on the film of 0.1mm 1
Conductor element 11 contains conductor lines 12 parallel to each other made of 3 printings in 1 group of conductor element of the present embodiment, such as
Shown in Fig. 1, these conductor lines 12 are formed after being dried by conductive coating, and the target width of every conductor lines 12 is
0.1mm, target length are 1mm.Such film that multiple groups conductor element is distributed with thereon is known as electrically conductive film 2.On electrically conductive film 2
There are blank between each group conductor element, the width D 1 of the blank in the present embodiment between adjacent sets conductor element is 1mm.
Step 2): thin layer adhesive, a face and first for electrically conductive film 2 are all coated on two faces of electrically conductive film 2
Piece foamed board 3 is bonded together, another face of electrically conductive film 2 is bonded together with second foamed board 4, as shown in Figure 2.First
Piece foamed board 3 and second foamed board 4 are all made of foamed material foaming, and the target thickness of first foamed board 3 is 1mm,
The target thickness of second foamed board 4 is 1mm.First foamed board 3 and second foamed board 4 can be considered the two of a piece of foamed board
A layering, electrically conductive film 2 are equivalent to after being bonded together with first foamed board 3 and second foamed board 4 and are in a piece of thickness
Degree is the inside of the plate of 2mm.The sandwich structure that 2, second first foamed board 3, electrically conductive film foamed boards 4 are constituted at this time
Plate is known as raw sheet 5.The theoretic thickness of raw sheet 5 should be 1+0.1+1=2.1mm, but need to impose when being bonded
Certain pressure, this pressure are possible to that the final thickness of raw sheet 5 is enabled to become 2mm.
Step 3): with machinery knives along the blank described in step 1) middle line to raw sheet 5 carry out through to and broadwise cutting,
Double dot dash line i.e. in Fig. 1, to obtain the magnetoelectric composites of cubic granules shape.Due to that will not be cut when cutting raw sheet 5
To conductor element, therefore particle obtained its internal conductor element is will not to expose to foamed material completely, while also not
Have the problem of conductor element is pulled.
The problem of conductor element is mutually conducted between variable grain can thus be prevented, so that these particles are overall
Dielectric property be easier to accurately control.
It should be noted that the conductor element of the present embodiment is the conductor element of plane, the conductor list of other planes
Member is as shown in Fig. 3 A to Fig. 3 G.Wherein, these conductor elements of Fig. 3 A, Fig. 3 B are further lines emission types.Fig. 3 C, Fig. 3 D this
A little conductor elements are further cyclic annular.These conductor elements of Fig. 3 E to Fig. 3 G are further multilateral shapes.
Embodiment 2
For the dielectric material of cubic granules shape of the present embodiment to make * wide * high ≈ 4mm*4mm*4mm one long.
Its manufacturing method is as follows:
Step 1): made of polyimides with a thickness of printing several groups by silk screen print method on the film of 0.1mm 6
Conductor element 61 contains only circular loop conductor 62 made of 1 printing in 1 group of conductor element 61 of the present embodiment, such as Fig. 4 institute
Show, these circular loop conductors 62 are formed after being dried by conductive coating, and the aimed dia of each circular loop conductor 62 is 2mm, target
Ring width is 0.15mm.Such film that multiple groups conductor element is distributed with thereon is known as electrically conductive film 7.Each group on electrically conductive film 7 is led
There are blank between body unit 61, the width D 2 of the blank in the present embodiment between adjacent sets conductor element is 2mm.
Step 2): electrically conductive film 7 is laid in the bottom for being used to make the mold of foaming plate, this mold is corresponding
Plate thickness is 2mm.The bottom of that of electrically conductive film 7 facing towards mold does not need strictly to distinguish.Closed die simultaneously injects foaming material
Expect then to carry out first time foaming in upper conductor film, electrically conductive film 7 is the plate for being fixed on the foaming after the completion of foaming
On.Then the plate is turned over to place into the mold that another is used to make foaming plate and enable and is fixed with electrically conductive film 7
On one side upward, the corresponding plate thickness of this mold is 4mm, and closed die simultaneously injects foamed material in the upper surface of electrically conductive film 7, then into
Second of foaming of row, electrically conductive film 7 is between two panels foamed board after the completion of foaming for second.Two panels foamed board can be considered one
Two layerings of sheet, electrically conductive film 7 is equivalent to the inside for being in a piece of plate with a thickness of 4mm at this time.First time foaming
Plate, electrically conductive film, the plate of sandwich structure that the plate of second of foaming is constituted at this time are known as raw sheet.First time foaming
Plate with a thickness of 2mm-0.1mm=1.9mm, the plate of second of foaming with a thickness of 4mm-2mm=2mm.
Step 3): the middle line along the blank described in step 1) carries out mold cutting to raw sheet, is formed with several cross on mold
To cutting edge and several longitudinal cutting edges, these lateral cutting edges form the grid cutting region of numerous 4mm*4mm with longitudinal cutting edge, work as mould
Tool is pressed on raw sheet with accurate position and enough pressure, then raw sheet can be divided into the electromagnetism of numerous cubic granules shapes
Composite material, and the circular loop conductor in each particle will not be cut to.
Embodiment 3
As shown in figure 5, the present embodiment difference from example 1 is that: at least one group on a piece of electrically conductive film
The pattern of conductor element is different from the pattern of another group of conductor element.Specifically, on a piece of electrically conductive film, there is several groups conductor list
Member belongs to the first pattern, specially cross；There is several groups conductor element to belong to second of pattern, specially six line stars.
Embodiment 4
As shown in fig. 6, the present embodiment is to make the medium of the cubic granules shape of * wide * high ≈ 4mm*2mm*2mm one long
For material.
Its manufacturing method is as follows:
Step a): made of polyimides with a thickness of printing several groups by silk screen print method on the film of 0.1mm 1
Conductor element, such film that multiple groups conductor element is distributed with thereon are known as electrically conductive film.The present embodiment includes 2 conductors
Film, respectively the first electrically conductive film 81 and the second electrically conductive film 82.The pattern of the conductor element of each group is identical on first electrically conductive film 81,
Pattern is specially cross, as shown in Figure 3A；The pattern of the conductor element of each group is identical on second electrically conductive film 82, and pattern is specific
For six line stars, as shown in Figure 3B.There are blank between each group conductor element on first electrically conductive film 81.On second electrically conductive film 82
Each group conductor element between also there are blank.Suitably set position of each group conductor element on the first electrically conductive film 81 and big
It is small, and position and size of each group conductor element on the second electrically conductive film 82 are suitably set, it can enable to the first electrically conductive film 81
Blank it is Chong Die with the area that the blank of the second electrically conductive film 82 reaches 70% or more, the ratio of certainly such area overlapping is higher
It is better, but also to comprehensively consider in conjunction with the size of each group conductor element.
Step b): very thin one is all coated on two faces of the first electrically conductive film 81 and on two faces of the second electrically conductive film 82
Layer adhesive, a face of the first electrically conductive film 81 and a face of first foamed board 91 is bonded together, by the first conductor
Another face of film 81 is bonded together on one side with second foamed board 92, by the another side and second of second foamed board 92
One face of electrically conductive film 82 is bonded together, another face of the second electrically conductive film 82 and a face of third piece foamed board 93 are glued
It is combined, as shown in Figure 7.The stepped construction of " 3 folder 2 " that constitute in this way is the raw sheet of the present embodiment, the raw sheet it is final
Thickness is set to 4mm.
Step c): with machinery knives along the sky of the blank of the first electrically conductive film 81 or the second electrically conductive film 82 described in step a)
White middle line to raw sheet carry out through to and broadwise cutting, the cardinal principle of cutting is to make every effort to that any group of conductor cannot be cut to
Unit is obtained with the granular magnetoelectric composites of target shape in this way.
What this specification was enumerated is only better embodiment of the invention, all institutes under the working principle and thinking of the invention
The equivalent technologies transformation done, is accordingly to be regarded as protection scope of the present invention.
Claims (16)
1. a kind of manufacturing method of magnetoelectric composites, it is characterized in that: the following steps are included:
Step 1): making several groups conductor element by way of printing, plane printing or 3D printing on film, it is such its
On the film of conductor element be distributed be known as electrically conductive film；There are blank between each group conductor element on electrically conductive film；
Step 2): the electrically conductive film is fixed to the inside for the plate being made of expanded material, such inside is with electrically conductive film
Plate is known as raw sheet；
Step 3): cutting raw sheet along the blank described in step 1, to obtain granular magnetoelectric composites.
2. a kind of manufacturing method of magnetoelectric composites as described in claim 1, it is characterized in that: printing production conductor element
Method is: conductive coating being printed on film with silk screen print method or gravure printing method.
3. a kind of manufacturing method of magnetoelectric composites as described in claim 1, it is characterized in that: in one group of conductor element only
Single conductor.
4. a kind of manufacturing method of magnetoelectric composites as described in claim 1, it is characterized in that: including in one group of conductor element
Multiple conductors being mutually not turned on.
5. a kind of manufacturing method of magnetoelectric composites as described in claim 1, it is characterized in that: with a piece of electrically conductive film up to
The pattern of rare one group of conductor element is different from the pattern of another group of conductor element.
6. a kind of manufacturing method of magnetoelectric composites as described in claim 1, it is characterized in that: with the two of a piece of electrically conductive film
The blank between each group conductor element for having multiple groups conductor element, and belonging on a face is all made on a face and belongs to another
The area of blank at least 70% or more between each group conductor element on face is overlapped.
7. the manufacturing method of a kind of magnetoelectric composites as described in claim 3 or 4, it is characterized in that: the conductor is linear
Either cyclic annular or multilateral shape.
8. a kind of manufacturing method of magnetoelectric composites as described in claim 1, it is characterized in that: being fixed to electrically conductive film by sending out
The method of the inside of plate made of foam material is: all coated with adhesive on two faces of electrically conductive film, a face of electrically conductive film with
First foamed board is bonded together, another face of electrically conductive film is bonded together with second foamed board.
9. a kind of manufacturing method of magnetoelectric composites as described in claim 1, it is characterized in that: being fixed to electrically conductive film by sending out
The method of the inside of plate made of foam material is: electrically conductive film is laid in the bottom for being used to make the mold of foaming plate,
Closed die simultaneously injects foamed material in the upper surface of electrically conductive film, then carries out first time foaming, leads after the completion of foaming first time
Body film is fixed on the plate of the foaming, and then the plate turns over places into another and be used to make foaming plate
In mold and enable and be fixed with the one side of electrically conductive film upward, closed die simultaneously injects foamed material in the upper surface of electrically conductive film, then into
Second of foaming of row.
10. a kind of manufacturing method of magnetoelectric composites as described in claim 1, it is characterized in that: the material of the conductor element
Material is good conductor or semiconductor.
11. a kind of manufacturing method of magnetoelectric composites as described in claim 1, it is characterized in that: the plate of the step 2)
Thickness exists: 2mm to 20mm.
12. a kind of manufacturing method of magnetoelectric composites as described in claim 1, it is characterized in that: the foaming of the step 2)
Material is: one of polyethylene, polyurethane, polyphenyl alkene, polystyrene are a variety of.
13. a kind of manufacturing method of magnetoelectric composites, it is characterized in that: the following steps are included:
Step a): making several groups conductor element by way of printing, plane printing or 3D printing on film, it is such its
On the film of conductor element be distributed be known as electrically conductive film；There are blank between each group conductor element on electrically conductive film；
Step b): 2 or 2 or more electrically conductive films are fixed to the inside for the plate being made of expanded material, such internal band
There is the plate of 2 or 2 or more electrically conductive films to be known as raw sheet；Separated between these electrically conductive films with foamed material mutually inside the raw sheet,
And the area of the blank of these electrically conductive films at least 70% or more is overlapped；
Step c): cutting raw sheet along blank described in step a, to obtain granular magnetoelectric composites.
14. a kind of manufacturing method of magnetoelectric composites as claimed in claim 13, it is characterized in that: with a piece of electrically conductive film up to
The pattern of rare one group of conductor element is different from the pattern of another group of conductor element.
15. a kind of manufacturing method of magnetoelectric composites as claimed in claim 13, it is characterized in that: belonging to same electrically conductive film
Each group conductor element is all identical pattern, and the pattern of each group conductor element of at least a piece of electrically conductive film, which is different from another, leads
The pattern of each group conductor element of body film.
16. a kind of manufacturing method of magnetoelectric composites as claimed in claim 13, it is characterized in that: the two of each electrically conductive film
All coated with adhesive on a face, separates the arrangement of N+1 piece foamed board, N >=2, by these conductors then with N piece electrically conductive film
Film and foamed board are sticked with integrally and as raw sheet.
Priority Applications (2)
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| CN201910391117.XA CN110112569A (en) | 2019-05-13 | 2019-05-13 | A kind of manufacturing method of magnetoelectric composites |
| PCT/CN2019/097822 WO2020228137A1 (en) | 2019-05-13 | 2019-07-26 | Fabrication method for electromagnetic composite material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910391117.XA CN110112569A (en) | 2019-05-13 | 2019-05-13 | A kind of manufacturing method of magnetoelectric composites |
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| WO (1) | WO2020228137A1 (en) |
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