CN109618548A - A kind of composite shielding material for special vehicle - Google Patents
A kind of composite shielding material for special vehicle Download PDFInfo
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- CN109618548A CN109618548A CN201811144350.XA CN201811144350A CN109618548A CN 109618548 A CN109618548 A CN 109618548A CN 201811144350 A CN201811144350 A CN 201811144350A CN 109618548 A CN109618548 A CN 109618548A
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- parts
- casting chamber
- demarcation plate
- casting
- jack
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Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0073—Shielding materials
- H05K9/0081—Electromagnetic shielding materials, e.g. EMI, RFI shielding
- H05K9/0088—Electromagnetic shielding materials, e.g. EMI, RFI shielding comprising a plurality of shielding layers; combining different shielding material structure
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
- C08L83/04—Polysiloxanes
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0073—Shielding materials
- H05K9/0081—Electromagnetic shielding materials, e.g. EMI, RFI shielding
- H05K9/009—Electromagnetic shielding materials, e.g. EMI, RFI shielding comprising electro-conductive fibres, e.g. metal fibres, carbon fibres, metallised textile fibres, electro-conductive mesh, woven, non-woven mat, fleece, cross-linked
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
- C04B2111/00258—Electromagnetic wave absorbing or shielding materials
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Electromagnetism (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Ceramic Engineering (AREA)
- Health & Medical Sciences (AREA)
- Polymers & Plastics (AREA)
- Textile Engineering (AREA)
- Inorganic Chemistry (AREA)
- Medicinal Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention proposes a kind of composite shielding materials for special vehicle, including outer framework, the cavity that section is rectangle is equipped in outer framework, what is be parallel to each other at the top of outer framework is equipped with the first jack and the second jack, first demarcation plate and the second demarcation plate are each passed through in the first jack and the second jack insertion cavity, first demarcation plate and the second demarcation plate, which are respectively welded, to be fixed on the first jack and the second jack, cavity is separated into the first casting chamber by the first demarcation plate and the second demarcation plate, second casting chamber and third are poured chamber, first casting chamber and third casting chamber are located at the two sides of the second casting chamber, first casting chamber, second casting chamber and third casting top of chamber are respectively equipped with a plug hole, first screen layer is filled in first casting chamber and third casting chamber, secondary shielding layer is filled in second casting chamber；Outer framework is made of stainless steel, and the first demarcation plate and the second demarcation plate are stereotype, reduce thickness, is alleviated self weight, is improved shield effectiveness.
Description
Technical field
The present invention relates to a kind of shielding material, in particular to a kind of composite shielding material for special vehicle.
Background technique
Transport the special vehicle of electronic system, electrical equipment, therein railway carriage more demanding to the shielding properties of its railway carriage
Door is the important component in compartment, and existing gap between body door and doorframe is the important channel of electromagnetic-wave leakage.At present
It is that shielding is realized by shielding adhesive tape between body door and doorframe, the shield effectiveness SE maximum of this shield door is only 50dB, with
Electronic technology high speed development and extensive use, electronic countermeasure and electronics interference are ubiquitous, powerful for effectively inhibiting
Electronic interferences, protect electronic system and electrical equipment from the requirement of infringement, current shield door has been unable to meet.
Patent " 200920125566.1 " discloses a kind of electromagnetic shielding door for carriage, including door body, doorframe and door lock, doorframe
It is fixedly mounted on compartment skeleton, door body is hinged by hinge assembly with doorframe, and door lock includes lock shaft, lock, outer handle, interior
Hand, inside and outside handle are mounted in door body by lock shaft；Closing piece is fixedly mounted on doorframe, and the doorframe front is surrounded by frame
Slot, the two sides in frame slot are equipped with comb shape reed, and door body is surrounded by frame corresponding with the positive surface frame slot of doorframe, door body and doorframe
Corresponding medial surface is also equipped with comb shape reed simultaneously.
Although above-mentioned shield door plays the effect of shielding, but its material shielding performance for being used to make door body cannot
Meet the needs of modern society, in order to increase shield effectiveness, door body thickness can only be increased, be added significantly to be self-possessed, increase into
This.
Summary of the invention
In view of the above-mentioned problems, reducing thickness the invention proposes a kind of composite shielding material for special vehicle, subtracting
Light self weight, improves shield effectiveness.
Specific technical solution is as follows:
A kind of composite shielding material for special vehicle, including outer framework are equipped with the cavity that section is rectangle in outer framework, outside
What is be parallel to each other at the top of frame is equipped with the first jack and the second jack, and the first demarcation plate and the second demarcation plate are each passed through first
In jack and the second jack insertion cavity, the first demarcation plate and the second demarcation plate, which are respectively welded, to be fixed on the first jack and second and inserts
Kong Shang, the first demarcation plate and the second demarcation plate by cavity be separated into the first casting chamber, second casting chamber and third be poured chamber, first
It is poured chamber and third casting chamber is located at the two sides of the second casting chamber, the first casting chamber, the second casting chamber and third are poured top of chamber
It is respectively equipped with a plug hole, first screen layer is filled in the first casting chamber and third casting chamber, the is filled in the second casting chamber
Two shielded layers；
Outer framework is made of stainless steel, and the first demarcation plate and the second demarcation plate are stereotype.
Further, the constituent of first screen layer is as follows according to parts by weight:
80-100 parts of cement, 10-20 parts of yellow sand, 5-25 parts of cellulose, 10-18 parts of graphite powder, 8-20 parts of silicon carbide, calcium carbonate
15-30 parts, 10-20 parts of metal powder, 6-16 parts of stainless steel fibre, 40-70 parts of water.
Further, first screen layer the preparation method comprises the following steps:
(1) 80-100 parts of cement, 10-20 parts of yellow sand, 40-70 parts of water are mixed evenly according to parts by weight；
(2) 15-30 parts of 5-25 parts of cellulose, 10-18 parts of graphite powder, 8-20 parts of silicon carbide, calcium carbonate stirring 30- are continuously added
60min；
(3) it is eventually adding 10-20 parts of metal powder, 6-16 parts of stirring 40-80min of stainless steel fibre obtain first screen layer mixing
Material；
(4) casting of first screen layer mixture is entered solidification in the second casting chamber can be obtained first screen layer.
Further, the constituent of secondary shielding layer is as follows according to parts by weight:
50-60 parts of epoxy resin, 100-120 parts of silicon rubber, 5-22 parts of silica 1,3-8 parts of zinc oxide, 5-10 parts of lactic acid, third
20-26 parts and metal powder 15-30 parts of ketone.
Further, secondary shielding layer the preparation method comprises the following steps:
(1) according to parts by weight by 50-60 parts of oxygen resin, 100-120 parts of silicon rubber, 5-22 parts of silica 1, zinc oxide 3-8
Part, 5-10 parts of lactic acid are kneaded in 20-26 parts of addition kneading machines of acetone；
(2) it is added after being kneaded after metal powder is mixed evenly and obtains secondary shielding layer mixture；
(3) casting of secondary shielding layer mixture is entered in the first casting chamber or third casting chamber, second can be obtained after solidification
Shielded layer.
Further, metal powder includes: copper powder 8-12%, iron powder 5-15%, silver powder 30-38%, nickel by weight percentage
Powder 5-10%, aluminium powder 3-6%, lead powder surplus.
Further, the thickness of secondary shielding layer is at least twice of first screen layer thickness, the thickness of first screen layer
It is equal with the thickness of third shielded layer.
The invention has the benefit that
The present invention is poured chamber, the second casting chamber and third by stereotype separated place first in stainless steel outer framework and is poured chamber, the
First screen layer is filled in one casting chamber and third casting chamber, is filled secondary shielding layer in the second casting chamber, that is, is reduced thickness,
Self weight is alleviated, and improves shield effectiveness.
Detailed description of the invention
Fig. 1 is cross-sectional view of the present invention.
Appended drawing reference
Outer framework 1, the first jack 2, the second jack 3, the first demarcation plate 4, the second demarcation plate 5, first casting chamber 6, second are poured
Chamber 7, third are poured chamber 8, first screen layer 9, secondary shielding layer 10.
Specific embodiment
Clear to be more clear technical solution of the present invention, the present invention is described further with reference to the accompanying drawing,
The technical characteristic of any pair of technical solution of the present invention carries out the scheme that equivalencing is obtained with conventional reasoning and each falls within guarantor of the present invention
Protect range.
Embodiment one
A kind of composite shielding material for special vehicle as shown in the figure, including outer framework 1, being equipped with section in outer framework is rectangle
Cavity, what is be parallel to each other at the top of outer framework is equipped with the first jack 2 and the second jack 3, the first demarcation plate 4 and the second demarcation plate
5 are each passed through in the first jack and the second jack insertion cavity, and the first demarcation plate and the second demarcation plate, which are respectively welded, is fixed on the
On one jack and the second jack, cavity is separated into the first casting chamber 6, second and is poured chamber 7 by the first demarcation plate and the second demarcation plate
It is poured chamber 8 with third, the first casting chamber and third casting chamber are located at the two sides of the second casting chamber, the first casting chamber, the second casting
Chamber and third casting top of chamber are respectively equipped with a plug hole, fill first screen layer 9 in the first casting chamber and third casting chamber,
Secondary shielding layer 10 is filled in second casting chamber；
Outer framework is made of stainless steel, and the first demarcation plate and the second demarcation plate are stereotype.
First screen layer the preparation method comprises the following steps:
(1) 90 parts of cement, 15 parts of yellow sand, 60 parts of water are mixed evenly according to parts by weight；
(2) 22 parts of 15 parts of cellulose, 14 parts of graphite powder, 12 parts of silicon carbide, calcium carbonate stirring 50min are continuously added；
(3) it is eventually adding 15 parts of metal powder, 12 parts of stirring 60min of stainless steel fibre obtain first screen layer mixture；
(4) casting of first screen layer mixture is entered solidification in the second casting chamber can be obtained first screen layer.
Secondary shielding layer the preparation method comprises the following steps:
(1) according to parts by weight by 55 parts of oxygen resin, 110 parts of silicon rubber, 20 parts of silica, 6 parts of zinc oxide, 8 parts of lactic acid, third
It is kneaded in 23 parts of addition kneading machines of ketone；
(2) it is added after being kneaded after metal powder is mixed evenly and obtains secondary shielding layer mixture；
(3) casting of secondary shielding layer mixture is entered in the first casting chamber or third casting chamber, second can be obtained after solidification
Shielded layer.
Further, metal powder includes: copper powder 10%, iron powder 10%, silver powder 35%, nickel powder 8%, aluminium by weight percentage
Powder 4%, lead powder surplus.
Further, twice with a thickness of first screen layer thickness of secondary shielding layer, the thickness of first screen layer and
The thickness of three shielded layers is equal.
Embodiment two
With a kind of composite shielding material for special vehicle described in embodiment one, the difference is that:
First screen layer the preparation method comprises the following steps:
(1) 80 parts of cement, 10 parts of yellow sand, 40 parts of water are mixed evenly according to parts by weight；
(2) 15 parts of 5 parts of cellulose, 10 parts of graphite powder, 8 parts of silicon carbide, calcium carbonate stirring 30min are continuously added；
(3) it is eventually adding 10 parts of metal powder, 6 parts of stirring 40min of stainless steel fibre obtain first screen layer mixture；
(4) casting of first screen layer mixture is entered solidification in the second casting chamber can be obtained first screen layer.
Secondary shielding layer the preparation method comprises the following steps:
(1) according to parts by weight by 50 parts of oxygen resin, 100 parts of silicon rubber, 5 parts of silica 1,3 parts of zinc oxide, 5 parts of lactic acid, third
It is kneaded in 20 parts of addition kneading machines of ketone；
(2) it is added after being kneaded after metal powder is mixed evenly and obtains secondary shielding layer mixture；
(3) casting of secondary shielding layer mixture is entered in the first casting chamber or third casting chamber, second can be obtained after solidification
Shielded layer.
Metal powder include: by weight percentage copper powder 8%, iron powder 5%, silver powder 30%, nickel powder 5%, aluminium powder 3%, more than lead powder
Amount.
Embodiment three
With a kind of composite shielding material for special vehicle described in embodiment one, the difference is that:
First screen layer the preparation method comprises the following steps:
(1) 100 parts of cement, 20 parts of yellow sand, 70 parts of water are mixed evenly according to parts by weight；
(2) 30 parts of 25 parts of cellulose, 18 parts of graphite powder, 0 part of silicon carbide, calcium carbonate stirring 60min are continuously added；
(3) it is eventually adding 20 parts of metal powder, 16 parts of stirring 80min of stainless steel fibre obtain first screen layer mixture；
(4) casting of first screen layer mixture is entered solidification in the second casting chamber can be obtained first screen layer.
Secondary shielding layer the preparation method comprises the following steps:
(1) according to parts by weight by 60 parts of oxygen resin, 120 parts of silicon rubber, 22 parts of silica, 8 parts of zinc oxide, 10 parts of lactic acid,
It is kneaded in 26 parts of addition kneading machines of acetone；
(2) it is added after being kneaded after metal powder is mixed evenly and obtains secondary shielding layer mixture；
(3) casting of secondary shielding layer mixture is entered in the first casting chamber or third casting chamber, second can be obtained after solidification
Shielded layer.
Metal powder includes: copper powder 12%, iron powder 15%, silver powder 38%, nickel powder 10%, aluminium powder 6%, lead by weight percentage
Powder surplus.
Claims (7)
1. a kind of composite shielding material for special vehicle, it is characterized in that, including outer framework, being equipped with section in outer framework is square
The cavity of shape, what is be parallel to each other at the top of outer framework is equipped with the first jack and the second jack, the first demarcation plate and the second demarcation plate
It is each passed through in the first jack and the second jack insertion cavity, the first demarcation plate and the second demarcation plate are respectively welded and are fixed on first
On jack and the second jack, cavity is separated into the first casting chamber, the second casting chamber and the by the first demarcation plate and the second demarcation plate
Three casting chambers, the first casting chamber and third casting chamber are located at the two sides of the second casting chamber, the first casting chamber, the second casting chamber and the
Three casting top of chamber are respectively equipped with a plug hole, fill first screen layer in the first casting chamber and third casting chamber, second pours
Secondary shielding layer is filled in note chamber；
Outer framework is made of stainless steel, and the first demarcation plate and the second demarcation plate are stereotype.
2. a kind of composite shielding material for special vehicle as described in claim 1, it is characterized in that, the group of first screen layer
It is as follows according to parts by weight at ingredient:
80-100 parts of cement, 10-20 parts of yellow sand, 5-25 parts of cellulose, 10-18 parts of graphite powder, 8-20 parts of silicon carbide, calcium carbonate
15-30 parts, 10-20 parts of metal powder, 6-16 parts of stainless steel fibre, 40-70 parts of water.
3. a kind of composite shielding material for special vehicle as claimed in claim 2, it is characterized in that, the system of first screen layer
Preparation Method are as follows:
(1) 80-100 parts of cement, 10-20 parts of yellow sand, 40-70 parts of water are mixed evenly according to parts by weight；
(2) 15-30 parts of 5-25 parts of cellulose, 10-18 parts of graphite powder, 8-20 parts of silicon carbide, calcium carbonate stirring 30- are continuously added
60min；
(3) it is eventually adding 10-20 parts of metal powder, 6-16 parts of stirring 40-80min of stainless steel fibre obtain first screen layer mixing
Material；
(4) casting of first screen layer mixture is entered solidification in the second casting chamber can be obtained first screen layer.
4. a kind of composite shielding material for special vehicle as described in claim 1, it is characterized in that, the group of secondary shielding layer
It is as follows according to parts by weight at ingredient:
50-60 parts of epoxy resin, 100-120 parts of silicon rubber, 5-22 parts of silica 1,3-8 parts of zinc oxide, 5-10 parts of lactic acid, third
20-26 parts and metal powder 15-30 parts of ketone.
5. a kind of composite shielding material for special vehicle as claimed in claim 4, it is characterized in that, the system of secondary shielding layer
Preparation Method are as follows:
(1) according to parts by weight by 50-60 parts of oxygen resin, 100-120 parts of silicon rubber, 5-22 parts of silica 1, zinc oxide 3-8
Part, 5-10 parts of lactic acid are kneaded in 20-26 parts of addition kneading machines of acetone；
(2) it is added after being kneaded after metal powder is mixed evenly and obtains secondary shielding layer mixture；
(3) casting of secondary shielding layer mixture is entered in the first casting chamber or third casting chamber, second can be obtained after solidification
Shielded layer.
6. a kind of composite shielding material for special vehicle as described in claim 2 and 4, it is characterized in that, metal powder is pressed
Weight percent meter includes: copper powder 8-12%, iron powder 5-15%, silver powder 30-38%, nickel powder 5-10%, aluminium powder 3-6%, lead powder surplus.
7. a kind of composite shielding material for special vehicle as described in claim 1, it is characterized in that, the thickness of secondary shielding layer
Degree is at least twice of first screen layer thickness, and the thickness of first screen layer is equal with the thickness of third shielded layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811144350.XA CN109618548B (en) | 2018-09-29 | 2018-09-29 | Composite shielding material for special vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811144350.XA CN109618548B (en) | 2018-09-29 | 2018-09-29 | Composite shielding material for special vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109618548A true CN109618548A (en) | 2019-04-12 |
| CN109618548B CN109618548B (en) | 2020-09-15 |
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| CN201811144350.XA Active CN109618548B (en) | 2018-09-29 | 2018-09-29 | Composite shielding material for special vehicle |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104647823A (en) * | 2013-11-25 | 2015-05-27 | 中国兵器工业第五二研究所 | Shock-resistant energy-absorbing material and preparation method thereof |
| CN205755265U (en) * | 2016-07-01 | 2016-11-30 | 中国工程物理研究院流体物理研究所 | Shield and screening arrangement |
| CN106193958A (en) * | 2016-08-01 | 2016-12-07 | 陆坤 | A kind of preparation method of aluminum alloy sound insulation door |
| CN106930466A (en) * | 2017-03-20 | 2017-07-07 | 肖文华 | One kind electromagnetic shielding wallboard and its manufacture method |
| KR101875500B1 (en) * | 2016-07-20 | 2018-07-06 | 한상녀 | Inner filler used for improve heat resistance of fire door |
-
2018
- 2018-09-29 CN CN201811144350.XA patent/CN109618548B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104647823A (en) * | 2013-11-25 | 2015-05-27 | 中国兵器工业第五二研究所 | Shock-resistant energy-absorbing material and preparation method thereof |
| CN205755265U (en) * | 2016-07-01 | 2016-11-30 | 中国工程物理研究院流体物理研究所 | Shield and screening arrangement |
| KR101875500B1 (en) * | 2016-07-20 | 2018-07-06 | 한상녀 | Inner filler used for improve heat resistance of fire door |
| CN106193958A (en) * | 2016-08-01 | 2016-12-07 | 陆坤 | A kind of preparation method of aluminum alloy sound insulation door |
| 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 | Publication date |
|---|---|
| CN109618548B (en) | 2020-09-15 |
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