CN108756053A - A kind of prefabricated board and preparation method thereof with electro-magnetic screen layer - Google Patents
A kind of prefabricated board and preparation method thereof with electro-magnetic screen layer Download PDFInfo
- Publication number
- CN108756053A CN108756053A CN201810650529.6A CN201810650529A CN108756053A CN 108756053 A CN108756053 A CN 108756053A CN 201810650529 A CN201810650529 A CN 201810650529A CN 108756053 A CN108756053 A CN 108756053A
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- prefabricated
- electro
- prefabricated board
- screen layer
- magnetic screen
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/26—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups
- E04C2/284—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating
- E04C2/288—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating composed of insulating material and concrete, stone or stone-like material
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B2001/925—Protection against harmful electro-magnetic or radio-active radiations, e.g. X-rays
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Building Environments (AREA)
Abstract
The invention discloses a kind of prefabricated board and preparation method thereof with electro-magnetic screen layer, reinforcing bar cage is set in the prefabricated board, it is additionally provided with electro-magnetic screen layer in the prefabricated plate surface, the electro-magnetic screen layer is located at the one or both sides of reinforcing bar cage, and prefabricated plate surface and/or side apply the electromagnetic screen coating containing metal powder.Electro-magnetic screen layer is used directly for the assembly construction in electromagnetic shielding room by the present invention with concrete prefabricated at prefabricated board, and room is electromagnetically shielded in structure without the later stage；Play the role of better shielding electromagnetic pulse by the way that the double-deck electro-magnetic screen layer is arranged, and electro-magnetic screen layer is connected with liner, and liner is at the side edge surface electro-magnetic screen layer of prefabricated board, so as to which the electro-magnetic screen layer of two pieces of prefabricated boards is linked together, the barrier propterty of electromagnetism is substantially increased, the electromagnetic signal inside and outside building can be effectively shielded.
Description
Technical field
The present invention relates to technical field of buildings, and in particular to a kind of prefabricated board and its making side with electro-magnetic screen layer
Method.
Background technology
With science and technology and electronics industry high speed development, it is various digitlization, high frequency electronic and electrical equipment in work
To the electromagnetic wave of the frequency of a large amount of different wave lengths of space radiation when making, so as to cause new environmental pollution -- Electromagnetic Interference
With radio frequency or radio interference.At the same time, electronic component is also towards miniaturization, lightweight, digitlization and High Density Integration
Change direction to develop, sensitivity is higher and higher, it is easy to be occurred malfunction, image obstacle and sound barrier by outside electromagnetic interference
Hinder.The performance that the electromagnetic interference that electromagnetic radiation generates only influences electronic product is realized, and caused electromagnetism is dirty therefrom
Dye can cause serious harm to the mankind and other organisms, this just needs to shield the electronic electric equipment of these high frequency
It covers.
The construction process in current electromagnetic shielding room mainly first carries out in-site measurement, is set again according to measurement data
Meter, production, then scene is fitted up, is installed, complex procedures, long in time limit, of high cost.
Invention content
It is an object of the present invention to overcome defect existing in the prior art, provide a kind of pre- with electro-magnetic screen layer
Making sheet and preparation method thereof, the prefabricated board is simple in structure, high stability, shield effectiveness are good, and the production method of the prefabricated board is applied
Work is convenient, and process is simple.
To achieve the above object, described the technical scheme is to design a kind of prefabricated board with electro-magnetic screen layer
Reinforcing bar cage is set in prefabricated board, electro-magnetic screen layer is additionally provided in the prefabricated plate surface, and the electro-magnetic screen layer is located at steel reinforcement cage
The one or both sides of frame, and prefabricated plate surface and/or side apply the electromagnetic screen coating containing metal powder.
In daily life, the radio wave of substantially daily-use electrical appliance being electromagnetically shielded is needed, the wavelength of radio wave is 0.3
For millimeter between 3000 meters, preferred technical solution is that electro-magnetic screen layer is to intert knitting forming by longitude and latitude by metal monofilament
Cable be smaller than the grid structure of 0.3mm.
Further preferred technical solution is that the grid of mesh grid is diamond shape or rectangular.The metal electromagnetism of this spline structure
Gauze screen not only contributes to enhancing shielding properties, and can also play the role of reinforcing concrete structure.
Reinforcing bar cage is equipped in prefabricated component, reinforcing bar is primarily subjected to tensile stress in prefabricated component, in order to avoid prefabricated component entirety
The reduction to meet with stresses, technical solution still more preferably are that the surface distance of the metallic shield net and prefabricated board is 1-
5cm。
Preferred technical solution is that the electro-magnetic screen layer is thin metal layer, and the thin metal layer thickness is 0.03-
0.1mm。
In order to keep electromagnetic screen coating coating uniform, effectiveness is good, and preferred technical solution is the metal powder
Grain size at least one of aluminium powder, iron powder and copper powder, the metal powder is 2-20um, and the metal powder is applied in electromagnetic shielding
Percent by volume in material is 20%-30%, and the electromagnetic screen coating surface pastes tearable coating protection film.Electromagnetic shielding applies
Material is formulated by synthetic resin, conductive filler, solvent, it, which is coated on substrate surface, forms one layer of cured film, to generate
Conductive shield effect.Electromagnetic screen coating has room temperature curing, strong adhesive force, at low cost, simple and practical and widely applicable excellent
Point.It is applied in order to avoid destroying electromagnetic shielding between two pieces of prefabricated boards when the casting concrete of junction or when on-site hoisting prefabricated board
The bed of material, electromagnetic screen coating layer paste tearable coating protection film outside.
In order to reach better effectiveness, technical solution still more preferably is that the electro-magnetic screen layer is
Bilayer is respectively provided at the both sides of reinforcing bar cage.
In order to make between prefabricated board electromagnetic shielding without leak source, technical solution still more preferably is, the prefabricated board
Electromagnetic sealing liner is also inlaid on the outside of the electro-magnetic screen layer of side, the electromagnetic sealing liner is that conductive fabric pads.Conductive fabric serves as a contrast
Pad is to superscribe blown rubber core by conductive fabric to constitute, generally rectangular cross-section, carries gum, and installation is very convenient, screen when low-and high-frequency
It is all higher to cover efficiency.
The present invention provides a kind of making side of the prefabricated board with electro-magnetic screen layer to solve existing technical problem
Method includes the following steps：
S1：Metallic shield net is cut into one block of gold more than prefabricated board size surface area by the preprocessing of metallic shield net
Belong to gauze screen, the surrounding of the metallic shield net cut, which is fixed on frame, is made metallic shield screen frame, and the frame is perpendicular to gold
Belong to the surface of gauze screen, the area of the metallic shield net in the frame is greater than or equal to the surface area of prefabricated board；
S2：Prefabricated preparation binds the reinforcing bar of prefabricated board to form reinforcing bar cage using the prior art, making prefabricated panel,
The side of prefabricated frame and plastic presser plate, the prefabricated frame is equipped with through-hole, and the through-hole is externally provided with cover board, the thickness of the plastic presser plate
Degree is 1-5cm, and plastic presser plate Outside Dimensions are equal with prefabricated board surface size, and two surfaces of plastic presser plate are smooth, and wherein
The both ends on one surface are equipped with hoisting ring；
S3：The cast of prefabricated board pours into a mould concrete to apart from prefabricated plate surface 1-5cm in prefabricated panel and prefabricated frame
Place, the concrete surface of the plastic presser plate device for hoisting that S2 steps are made to cast, opens the cover board outside prefabricated frame through-hole, pressure roller
Plastic presser plate is flattened, any excess concrete is overflowed out of prefabricated frame through-hole, and after having lifted plastic presser plate, metallic shield screen frame is placed
In concrete surface, the frame of screen frame is made to be bonded with prefabricated frame inner wall, the design thickness of cast concrete to the prefabricated board；
S4：Prefabricated board shapes, and the prefabricated board that S3 steps make is conserved, and after waiting for prefabricated board maintenance, removes pre-
Electromagnetic screen coating, room temperature naturally dry coating are brushed in bottom plate and prefabricated frame processed, the surface of prefabricated board and side spraying；Then
Tearable coating protection film is pasted again on the surface of coating, conserves prefabricated board, it is spare.
It is more docile close in order to make metal electromagnetic shielding net be combined with concrete when prefabricated component makes, fold is not played,
And metal electromagnetic shielding net is set to carry out all standing, exhaustive to the surface of prefabricated component, preferred technical solution is the S1 steps
Seal ring thickness in rapid is 1-3mm, is highly 1-2cm, and the material of the frame is plastics or thin metal.
The advantages of the present invention are：The present invention by electro-magnetic screen layer with it is concrete prefabricated at prefabricated board, can
To be directly used in the assembly construction in electromagnetic shielding room, room is electromagnetically shielded in structure without the later stage；By the way that the double-deck electromagnetic shielding is arranged
Layer plays the role of shielding electromagnetic pulse, and electro-magnetic screen layer is connected with liner, and pads the side edge surface positioned at prefabricated board
At electro-magnetic screen layer, so as to which the electro-magnetic screen layer of two pieces of prefabricated boards to be linked together, the protective of electromagnetism is substantially increased
Can, it can effectively shield the electromagnetic signal inside and outside building.Simultaneously as metallic shield net is not only light but also soft, it is laid immediately on mixed
It is provided by the invention that there is electromagnetism the problem of fold, prefabricated component edge can not cover it is possible that curling on solidifying soil layer
In the production method of the prefabricated board of shielded layer, first metallic shield net is fixed with frame, frame can stretch metallic shield net taut
Tightly, make the making of prefabricated board more convenient.
Description of the drawings
Fig. 1 is the cross-sectional view of present invention electromagnetic shielding prefabricated board；
Fig. 2 is the structural schematic diagram of present invention electromagnetic shielding prefabricated board metallic shield screen frame.
In figure：1, electromagnetic screen coating；2, electro-magnetic screen layer；3, reinforcing bar；4, electromagnetic sealing pads；5, frame.
Specific implementation mode
With reference to the accompanying drawings and examples, the specific implementation mode of the present invention is further described.Following embodiment is only
For clearly illustrating technical scheme of the present invention, and not intended to limit the protection scope of the present invention.
Embodiment 1
As shown in Figure 1, the present invention is a kind of prefabricated board with electro-magnetic screen layer, 3 cage of reinforcing bar is set in the prefabricated board,
Electro-magnetic screen layer 2 is additionally provided in the prefabricated plate surface, the electro-magnetic screen layer 2 is located at the one or both sides of 3 cage of reinforcing bar, and
Prefabricated plate surface applies the electromagnetic screen coating 1 containing metal powder.
The electro-magnetic screen layer 2 is to intert the cable of knitting forming by longitude and latitude by metal monofilament to be smaller than 0.3mm's
Grid structure.The grid of mesh grid is rectangular.
2 outside of side electro-magnetic screen layer of the prefabricated board is also inlaid with electromagnetic sealing liner 4, the electromagnetic sealing liner
4 pad for conductive fabric.
When assembled in situ is constructed, after the completion of the reinforcing bar 3 between two prefabricated boards welds, seam crossing poured in place concrete,
Cast-in-place concrete surface pastes electromagnetic shielding and metal mesh or coats electromagnetic screen coating or bury metal strip, make two pieces of prefabricated boards it
Between electro-magnetic screen layer 2 connect, be electromagnetically shielded without leak source.
Design feature according to the present invention can also do the precast beam with electro-magnetic screen layer, pre- water making pipe, prefabricated ladder
Deng.Premises is comprehensive, and gross area is electromagnetically shielded, and later stage building is in use, as pre- in not being laid with electromagnetic shielding at door and window
The position of product can be used fabric of the suspension with electro-magnetic screen function as door curtain or curtain, can carry out no leak source and cover entirely
The electromagnetic shielding of lid.
Embodiment 2
As shown in Fig. 2, a kind of production method of the prefabricated board with electro-magnetic screen layer, includes the following steps：
S1：Metallic shield net is cut into one block of gold more than prefabricated board size surface area by the preprocessing of metallic shield net
Belong to gauze screen, the surrounding of the metallic shield net cut, which is fixed on frame 5, is made metallic shield screen frame, the frame 5 perpendicular to
The surface of metallic shield net, the area of the metallic shield net in the frame 5 are greater than or equal to the surface area of prefabricated board；
S2：Prefabricated preparation binds the reinforcing bar of prefabricated board to form reinforcing bar cage using the prior art, making prefabricated panel,
The side of prefabricated frame and plastic presser plate, the prefabricated frame is equipped with through-hole, and the through-hole is externally provided with cover board, the thickness of the plastic presser plate
Degree is 1-5cm, and plastic presser plate Outside Dimensions are equal with prefabricated board surface size, and two surfaces of plastic presser plate are smooth, and wherein
The both ends on one surface are equipped with hoisting ring；
S3：The cast of prefabricated board pours into a mould concrete to apart from prefabricated plate surface 1-5cm in prefabricated panel and prefabricated frame
Place, the concrete surface of the plastic presser plate device for hoisting that S2 steps are made to cast, opens the cover board outside prefabricated frame through-hole, pressure roller
Plastic presser plate is flattened, any excess concrete is overflowed out of prefabricated frame through-hole, and after having lifted plastic presser plate, metallic shield screen frame is placed
In concrete surface, the frame 5 of screen frame is made to be bonded with prefabricated frame inner wall, the design thickness of cast concrete to the prefabricated board；
S4：Prefabricated board shapes, and the prefabricated board that S3 steps make is conserved, and after waiting for prefabricated board maintenance, removes pre-
Electromagnetic screen coating, room temperature naturally dry coating are brushed in bottom plate and prefabricated frame processed, the surface of prefabricated board and side spraying；Then
Tearable coating protection film is pasted again on the surface of coating, conserves prefabricated board, it is spare.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvements and modifications can also be made, these improvements and modifications
Also it should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of prefabricated board with electro-magnetic screen layer, reinforcing bar cage is set in the prefabricated board, which is characterized in that the prefabricated board
Be additionally provided with electro-magnetic screen layer in surface, the electro-magnetic screen layer is located at the one or both sides of reinforcing bar cage, and prefabricated plate surface and/
Or side applies the electromagnetic screen coating containing metal powder.
2. the prefabricated board according to claim 1 with electro-magnetic screen layer, which is characterized in that the electro-magnetic screen layer is served as reasons
The cable that metal monofilament interts knitting forming by longitude and latitude is smaller than the grid structure of 0.3mm.
3. the prefabricated board according to claim 2 with electro-magnetic screen layer, which is characterized in that the grid of mesh grid is water chestnut
Shape is rectangular.
4. the prefabricated board according to claim 3 with electro-magnetic screen layer, which is characterized in that the metallic shield net with it is pre-
The surface distance of making sheet is 1-5cm.
5. the prefabricated board according to claim 1 with electro-magnetic screen layer, which is characterized in that the electro-magnetic screen layer is thin
Metal layer, the thin metal layer thickness are 0.03-0.1mm.
6. the prefabricated board according to claim 1 with electro-magnetic screen layer, which is characterized in that the metal powder be aluminium powder,
The grain size of at least one of iron powder and copper powder, the metal powder is 2-20um, and the metal powder is in electromagnetic screen coating
Percent by volume is 20%-30%, and the electromagnetic screen coating surface pastes tearable coating protection film.
7. according to the prefabricated board any one of described in claim 2-6 with electro-magnetic screen layer, which is characterized in that the electromagnetic shielding
Layer is bilayer, is respectively provided at the both sides of reinforcing bar cage.
8. the prefabricated board with electro-magnetic screen layer any one of according to claim 7, which is characterized in that the prefabricated board
Electromagnetic sealing liner is also inlaid on the outside of the electro-magnetic screen layer of side, the electromagnetic sealing liner is that conductive fabric pads.
9. a kind of production method of prefabricated board with electro-magnetic screen layer according to claim 4 or 6, which is characterized in that
Include the following steps：
S1：Metallic shield net is cut into one piece of metal screen more than prefabricated board size surface area by the preprocessing of metallic shield net
Net is covered, the surrounding of the metallic shield net cut, which is fixed on frame, is made metallic shield screen frame, and the frame is perpendicular to metal screen
The surface of net is covered, the area of the metallic shield net in the frame is greater than or equal to the surface area of prefabricated board；
S2：Prefabricated preparation binds the reinforcing bar of prefabricated board to form reinforcing bar cage using the prior art, makes prefabricated panel, prefabricated
The side of frame and plastic presser plate, the prefabricated frame is equipped with through-hole, and the through-hole is externally provided with cover board, and the thickness of the plastic presser plate is
1-5cm, plastic presser plate Outside Dimensions are equal with prefabricated board surface size, and two surfaces of plastic presser plate are smooth, and one of them
The both ends on surface are equipped with hoisting ring；
S3：The cast of prefabricated board pours into a mould concrete extremely at prefabricated plate surface 1-5cm in prefabricated panel and prefabricated frame, will
The plastic presser plate device for hoisting that S2 steps make opens the cover board outside prefabricated frame through-hole to the concrete surface of cast, and pressure roller flattens
Plastic presser plate, any excess concrete is overflowed out of prefabricated frame through-hole, after having lifted plastic presser plate, metallic shield screen frame is placed on mixed
Solidifying soil surface, makes the frame of screen frame be bonded with prefabricated frame inner wall, the design thickness of cast concrete to the prefabricated board；
S4：Prefabricated board shapes, and the prefabricated board that S3 steps make is conserved, and after waiting for prefabricated board maintenance, removes prefabricated bottom
Electromagnetic screen coating, room temperature naturally dry coating are brushed in plate and prefabricated frame, the surface of prefabricated board and side spraying；Then it is applying
The surface of material pastes tearable coating protection film again, conserves prefabricated board, spare.
10. a kind of production method of prefabricated board with electro-magnetic screen layer according to claim 9, which is characterized in that institute
The seal ring thickness stated in S1 steps is 1-3mm, is highly 1-2cm, and the material of the frame is plastics or thin metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810650529.6A CN108756053B (en) | 2018-06-22 | 2018-06-22 | Prefabricated slab with electromagnetic shielding layer and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810650529.6A CN108756053B (en) | 2018-06-22 | 2018-06-22 | Prefabricated slab with electromagnetic shielding layer and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108756053A true CN108756053A (en) | 2018-11-06 |
| CN108756053B CN108756053B (en) | 2021-08-27 |
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ID=63976307
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810650529.6A Active CN108756053B (en) | 2018-06-22 | 2018-06-22 | Prefabricated slab with electromagnetic shielding layer and manufacturing method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN108756053B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111506116A (en) * | 2020-05-29 | 2020-08-07 | 中国南方电网有限责任公司超高压输电公司昆明局 | Unmanned aerial vehicle safety control method based on strong magnetic field interference of converter station |
| CN112252580A (en) * | 2020-09-21 | 2021-01-22 | 江苏东尚住宅工业有限公司 | Pre-buried prefabricated plate that has magnet |
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| CN204948618U (en) * | 2015-05-13 | 2016-01-06 | 东莞市万丰纳米材料有限公司 | electromagnetic shielding film |
| CN106930466A (en) * | 2017-03-20 | 2017-07-07 | 肖文华 | One kind electromagnetic shielding wallboard and its manufacture method |
| CN207484812U (en) * | 2017-11-01 | 2018-06-12 | 佛山市美之居装饰材料有限公司 | A kind of electromagnetic shielding wallboard |
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| WO2007118916B1 (en) * | 2006-04-18 | 2007-12-13 | Gonzalez Pedro Puig | Device for partitioning and closures of vertical type |
| CN204948618U (en) * | 2015-05-13 | 2016-01-06 | 东莞市万丰纳米材料有限公司 | electromagnetic shielding film |
| CN106930466A (en) * | 2017-03-20 | 2017-07-07 | 肖文华 | One kind electromagnetic shielding wallboard and its manufacture method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111506116A (en) * | 2020-05-29 | 2020-08-07 | 中国南方电网有限责任公司超高压输电公司昆明局 | Unmanned aerial vehicle safety control method based on strong magnetic field interference of converter station |
| CN111506116B (en) * | 2020-05-29 | 2021-08-17 | 中国南方电网有限责任公司超高压输电公司昆明局 | Unmanned aerial vehicle safety control method based on strong magnetic field interference of converter station |
| CN112252580A (en) * | 2020-09-21 | 2021-01-22 | 江苏东尚住宅工业有限公司 | Pre-buried prefabricated plate that has magnet |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108756053B (en) | 2021-08-27 |
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