CN104943247A - Building interior material for electromagnetic wave shielding and preparation method of copper-iron alloy - Google Patents
Building interior material for electromagnetic wave shielding and preparation method of copper-iron alloy Download PDFInfo
- Publication number
- CN104943247A CN104943247A CN201510296379.XA CN201510296379A CN104943247A CN 104943247 A CN104943247 A CN 104943247A CN 201510296379 A CN201510296379 A CN 201510296379A CN 104943247 A CN104943247 A CN 104943247A
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- copper
- iron alloy
- iron
- electromagnetic wave
- wave shielding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/14—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by a layer differing constitutionally or physically in different parts, e.g. denser near its faces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05F—STATIC ELECTRICITY; NATURALLY-OCCURRING ELECTRICITY
- H05F1/00—Preventing the formation of electrostatic charges
- H05F1/02—Preventing the formation of electrostatic charges by surface treatment
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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
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The invention provides a building interior material for electromagnetic wave shielding. The building interior material is characterized by comprising a copper-iron alloy net, fire-resistance reinforcing material layers and copper-iron alloy foils, wherein the copper-iron alloy net is positioned at the central layer; there are two fire-resistance reinforcing material layers which are respectively adhered to two sides of the copper-iron alloy net; and there are two layers of copper-iron alloy foils which are respectively adhered to two sides of the fire-resistance reinforcing material layers. According to the invention, the building interior material for electromagnetic wave shielding has a building electromagnetic wave shielding effect. The material not only has a shielding effect on electric wave but also has an obvious effect of shielding magnetic wave. Thus, the high-performance electromagnetic wave shielding effect can be enhanced. In addition, the material also has a dual effect of preventing obvious drop in the electromagnetic wave shielding capability due to defects caused by carelessness during construction.
Description
Technical field
The present invention relates to a kind of electromagnetic wave shielding building interior material, the invention still further relates to the preparation method of this building interior material copper-iron alloy used, belong to building material field.
Background technology
In the past, in order to the effect making building have electromagnetic wave shielding, usually use copper, the conductive metal such as aluminium, and use the thin plate of carbon element material or the shielding material of paper tinsel dress.But these materials only have screening effect to electromagnetic electric wave composition, and do not have obvious effect to magnetic wave.Also have because of construction time storeroom collision or use instrument is improper cause shielding material to occur local defect time, screening effect can be caused obviously to decline.
Summary of the invention
The object of the present invention is to provide a kind of electromagnetic wave shielding building interior material being made shielding by copper-iron alloy, to solve the problem.
The invention provides a kind of electromagnetic wave shielding building interior material, it is characterized in that, comprising: copper-iron alloy net, be positioned at center one deck; The anti-flammability armature bed of material, has two-layer, is pasted on the both sides of described copper-iron alloy net respectively; And copper-iron alloy paper tinsel, have two-layer, be bonded in described anti-flammability armature bed of material both sides respectively.
In addition, electromagnetic wave shielding building interior material of the present invention, can also have such feature: wherein, described copper-iron alloy net is made into by copper-iron alloy line, and the diameter of described copper-iron alloy line is 0.05-0.5mm.
In addition, electromagnetic wave shielding building interior material of the present invention, can also have such feature: wherein, described copper-iron alloy net and described copper-iron alloy paper tinsel all use Copper-iron alloy material to make.
The present invention also provides a kind of preparation method of the copper-iron alloy for above-mentioned electromagnetic wave shielding building interior material, it is characterized in that:
Described copper-iron alloy is in the process of preparation, and first copper raw material and iron material are melted respectively, and then mix, in the steel alloy material prepared, iron is with the fractions distribution of tiny crystal grains in copper matrix, and the mass ratio that iron accounts for alloy is 5% ~ 45%.
Preferably, preparation method of the present invention, in the process that copper raw material and iron material melt respectively, also comprises the step of dehydrogenation, and use oxygen to carry out dehydrogenation, when dehydrogenation, oxygen partial pressure remains on 1.5atm ~ 3atm.
Preferably, preparation method of the present invention, after the step of described deoxidation, also has deoxygenation step, uses Ca, Si, Mn, P, Al, Ti, the monomer such as Li or complex carry out deoxidation.
Preferably, preparation method of the present invention, after described copper-iron alloy has mixed, also comprises the step cooled rapidly, the temperature decrease speed * 2 of reduction of speed degree≤normal temperature cooling at the described temperature cooled rapidly.
Preferably, preparation method of the present invention, after described copper-iron alloy has mixed, also wraps the step of cooling, and the temperature decrease speed of cooling is per second at 50 DEG C-150 DEG C.
The beneficial effect of the invention
According to electromagnetic wave shielding building interior material of the present invention, be not only shielding electric wave composition, also have obvious effect for shielding magnetic wave, thus high performance electromagnetic shielding effect can be provided.For not noticing during construction that the defect produced causes the obvious decline of obvious electromagnetic wave shielding ability, also has dual prevention effect.
Simultaneously compared with the electromagnetic shielding material of routine, the present invention is more frivolous, and quality is soft, is convenient to form various shape temporarily, to adapt to complicated execution conditions.
Accompanying drawing explanation
Fig. 1 is the structural representation of the electromagnetic wave shielding building interior material being made shielding by copper-iron alloy;
Fig. 2 is that the shield effectiveness of the electromagnetic shielding material that Copper-iron alloy material of the present invention is commonly used with existing cable compares.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described.
Fig. 1 is the structural representation of the electromagnetic wave shielding building interior material being made shielding by copper-iron alloy.As shown in Figure 1, electromagnetic wave shielding building interior material comprises copper-iron alloy paper tinsel 1, the anti-flammability armature bed of material 2, and copper-iron alloy net 3.Copper-iron alloy net 3 is positioned at center one deck, and both sides use the bonding of the anti-flammability armature bed of material 2 to clamp, then at the anti-flammability armature bed of material 2 both sides bonded copper ferroalloy paper tinsel 1.Wherein, what play shielding action is two-layer copper-iron alloy paper tinsel 1 and copper-iron alloy net 3.Copper-iron alloy paper tinsel 1 and copper-iron alloy net 3 comprise copper matrix, and be present in the tiny crystals grain sheet divided for main composition with iron in copper matrix.Iron accounts for the 5-45% of global copper ferroalloy weight.In present embodiment, in copper-iron alloy net 3, the diameter of copper iron wire is 0.05-0.5mm.In present embodiment, the thickness of copper-iron alloy paper tinsel 1 is 0.05mm-0.5mm.The thickness of wire rod and Alloy Foil can change in other embodiments according to actual needs, is not limited to the data provided in present embodiment.The anti-flammability armature bed of material can adopt the anti-flammability reinforcement materials such as silicate conventional in construction material.
Electromagnetic wave shielding of the present invention building interior material, take iron as the tiny crystals grain sheet of principal component due to what there is independent dispersion in copper matrix, thus can cover electric wave composition and magnetic wave composition.And because having three layers of shielding material contexture, even if so construction time careless surface occur that a part of defectiveness also can prevent the reduction of electromagnetic shielding ability.
The preparation method of copper-iron alloy:
Step one, high-quality copper sheet to be dissolved in electric stove.The copper generally purity being greater than 99.9% is referred to as high-quality copper.Broken copper sheet is put in electrical equipment stove and stir, more than temperature increase to fusing point (810.24k), after dissolving, carry out dehydrogenation and deoxidation operation.
(1) in order to dehydrogenation, during dissolving, oxygen partial pressure keeps being transferred to a high position, the scope of oxygen partial pressure: 1.5atm ~ 3atm.Keep temperature to adjust to more than fusing point 50 DEG C ~ 100 DEG C afterwards, the oxygen element dissolved on copper is increased, and the separating hydrogen gas of phase rule, then carries out deoxidization technique.
(2) deoxidier strong with combination with oxygen power is used during deoxidation.Deoxidier can use such as: the monomers such as Ca, Si, Mn, P, Al, Ti, Li or complex, or with the complexing agent of other various metals.Period, in order to prevent hydrogen and oxygen from returning original state, pour into a large amount of inert gases at melting furnace noodle soup.While use deoxidier, use the dregs of the material that oxidation occurs except the set of dregs auxiliary agent, and be separated from molten soup.The low-melting compound of the mineral of Ca, Mg system is adopted except dregs auxiliary agent.
(3), during high-quality dissolved ferric iron, in order to prevent causing fusing point to change because stove material element is mixed into or occurs mixing change, ex ante analysis is answered to manufacture the impurity oil content of metal and select the stove material that impurity element amount is few.
The operation that step 2, high-quality iron dissolve on electric stove, step 2 and step one are carried out respectively simultaneously.
Get the iron plate that high-test metal is pulverized, refer to stir the iron that purity is greater than 99.9% in electric stove, more than temperature increase to the fusing point (1261.84k) of iron, after fusing, situation is as follows:
Use during deoxidation, the compound deoxidier strong with combination with oxygen power.(such as: Ca, Si, Mn, P, AL, Ti, monomer or the complex such as Li, or with polymetallic complexing agent) period, in order to prevent hydrogen and oxygen from returning original state, pour into a large amount of inert gases at stove noodle soup.When also having use deoxidier, use except dregs auxiliary agent, gather the dregs that oxide occurs, and be separated from soup.The low-melting compound of the mineral of Ca, Mg system is adopted except dregs auxiliary agent.
Further, during the fusing of high-quality iron, in order to prevent causing fusing point to change because stove material element is mixed into or occurs mixing change, equipment analysis can be shifted to an earlier date and manufacture the impurity oil content of metal and select suitable stove material.
The hybrid technique of the molten soup of step 3, high-quality copper and high-quality iron
In order to mix high-quality copper in respective stove and high-quality iron, according to blending ratio needed for ingot bar, under preventing air to be involved in situation, be injected in the electric stove of mixing.In the copper-iron alloy that the present invention uses, iron accounts for the 5-45% of global copper ferroalloy weight.
The solution be injected into for benchmark heats up, promotes crystallization with the melt temperature of high-quality iron.Put into the solubility of iron in copper, from double equilibrium diagram, be about 2%, so become supersaturation composition state, become grow up to intermetallic compound, concentration and copper liquid phase seemingly, so produce little shape in the liquid of copper.This shape has the granular flat that also has, and as dispersion concentration is high, become grume, viscosity rises.Copper exists: 1 ~ 99%; Iron: 1 ~ 99%; Other trace element: less than 1%.
The technique of step 4, injection mold
By in step 3, the situation that viscosity rises regards as the benchmark that reaction terminates, and injects the opportunity of mould.
When solution in casting mould solidifies, in order to the setting-time control, usually use nature cooling, force to cool rapidly, the methods such as heating and temperature control cooling.The size of crystal grain is regulated by cooling velocity.The fireballing words that temperature declines, crystal grain, mangcorn are just little; The slow-footed words that temperature declines, crystal grain, mangcorn are just large.Thus be made and be applicable to exhibition and stretch the grain size number of material and encourage gumminess crystalline substance specifically, adopt the mode alloy cooled rapidly to cool, the shield effectiveness of the alloy material obtained is better.Cooling refers to Leng but Su Du≤normal temperature cooling velocity/2 rapidly.Note soup temperature with the solution temperature 1261.84k of high-quality iron for benchmark.Metal pattern alloy is adopted to cool rapidly.
The said speed cooling rapidly and heat cooling of the present invention, be compared with normal temperature cooling velocity under and the relative velocity obtained.
Cool rapidly: the temperature decrease speed * 2 of reduction of speed degree≤normal temperature cooling at the temperature cooled rapidly
Heating cooling: temperature decrease speed/2 of reduction of speed degree≤normal temperature cooling at the temperature of heating cooling
Namely, suppose to be cooled to normal temperature from 1500 DEG C, it is 50 seconds that normal temperature cools the time used, then the cool time cooled rapidly should be less than 25 seconds, and the time of heating cooling should more than 100 seconds.
The hammer welding process of ingot bar
On the ingot bar manufactured after inside and outside homogeneous heating, be in and partly dissolve forging welding state, thus make crystal grain produce directionality, the purposes of applicable stretching property of exhibition material.In addition as one of object, be the bubble of inside is extruded bond with pressure.
Heating furnace between 700 ~ 800 DEG C bonds with forging device pressure after inner homogeneous heating.
Operation is stretched in the exhibition of ingot bar
The ingot bar manufactured is between 700-800 degree or after normal temperature exhibition is stretched, make secondary, the example of three products is as follows:
Ingot bar is cast between 700-800 degree, is made pole material, square bar.
Between heat after the calendering of (700-800 degree) roller, then normal temperature calendering bracing wire is carried out repeatedly, extracts the fine rule of footpath 0.5-0.05mm out, fine rule is compiled into net further, form copper-iron alloy net.
Same, copper-iron alloy paper tinsel also can adopt metal forming manufacturing process to manufacture.In order to be beneficial to extension, after steel and alloy injects mould, can control cooling rate, scope is per second at 50 DEG C-150 DEG C.
Fig. 2 is that the shield effectiveness of the electromagnetic shielding material that Copper-iron alloy material of the present invention is commonly used with existing cable compares.As shown in Figure 2, in figure, copper-iron alloy-20 refers to the copper-iron alloy of Cu90%-Fe10%, and Al is aluminium, and Cu is copper, and SUS is stainless steel, and letter numeral 20 below represents that the thickness of material is 20 μm.Visible, the copper-iron alloy-20 of same thickness is good to the effect of the shield effectiveness of electric field material more various than other.
Claims (8)
1. an electromagnetic wave shielding building interior material, is characterized in that, comprising:
Copper-iron alloy net, is positioned at center one deck;
The anti-flammability armature bed of material, has two-layer, is pasted on the both sides of described copper-iron alloy net respectively; And
Copper-iron alloy paper tinsel, has two-layer, is bonded in described anti-flammability armature bed of material both sides respectively.
2. electromagnetic wave shielding as claimed in claim 1 building interior material, is characterized in that:
Wherein, described copper-iron alloy net is made into by copper-iron alloy line, and the diameter of described copper-iron alloy line is 0.05-0.5mm.
3. electromagnetic wave shielding as claimed in claim 1 building interior material, is characterized in that:
Wherein, described copper-iron alloy net and described copper-iron alloy paper tinsel all use Copper-iron alloy material to make.
4., for the preparation method of the electromagnetic wave shielding described in claim 1-3 with the copper-iron alloy of building interior material, it is characterized in that:
Described copper-iron alloy is in the process of preparation, and first copper raw material and iron material are melted respectively, and then mix, in the steel alloy material prepared, iron is with the fractions distribution of tiny crystal grains in copper matrix, and the mass ratio that iron accounts for alloy is 5% ~ 45%.
5. preparation method as claimed in claim 4, is characterized in that:
Wherein, in the process that copper raw material and iron material melt respectively, also comprise the step of dehydrogenation, use oxygen to carry out dehydrogenation, when dehydrogenation, oxygen partial pressure remains on 1.5atm ~ 3atm.
6. preparation method as claimed in claim 5, is characterized in that:
After the step of described deoxidation, also there is deoxygenation step, use Ca, Si, Mn, P, Al, Ti, the monomer such as Li or complex carry out deoxidation.
7. preparation method as claimed in claim 4, is characterized in that:
Wherein, after described copper-iron alloy has mixed, also comprise the step cooled rapidly, the temperature decrease speed * 2 of reduction of speed degree≤normal temperature cooling at the described temperature cooled rapidly.
8. preparation method as claimed in claim 4, is characterized in that:
Wherein, after described copper-iron alloy has mixed, also wrap the step of cooling, the temperature decrease speed of cooling is per second at 50 DEG C-150 DEG C.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510296379.XA CN104943247A (en) | 2015-06-02 | 2015-06-02 | Building interior material for electromagnetic wave shielding and preparation method of copper-iron alloy |
| PCT/CN2015/089091 WO2016192228A1 (en) | 2015-06-02 | 2015-09-07 | Building interior material for electromagnetic wave shielding and preparation method for copper-iron alloy thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510296379.XA CN104943247A (en) | 2015-06-02 | 2015-06-02 | Building interior material for electromagnetic wave shielding and preparation method of copper-iron alloy |
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| CN104943247A true CN104943247A (en) | 2015-09-30 |
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| CN201510296379.XA Pending CN104943247A (en) | 2015-06-02 | 2015-06-02 | Building interior material for electromagnetic wave shielding and preparation method of copper-iron alloy |
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| WO (1) | WO2016192228A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104988350A (en) * | 2015-07-30 | 2015-10-21 | 张连仲 | High-ductility copper and iron alloy, preparation method thereof, and copper and iron alloy wire |
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| JP2007049104A (en) * | 2005-08-08 | 2007-02-22 | Dotetsu Gokin Kk | Electromagnetic shielding method and electromagnetic shielding member |
| CN102148063A (en) * | 2010-02-08 | 2011-08-10 | 滕艺科技有限公司 | Formed article structure of in-mold decoration craft |
| JP2012207275A (en) * | 2011-03-30 | 2012-10-25 | Kobe Steel Ltd | Copper alloy for electromagnetic shielding material |
| JP2012207286A (en) * | 2011-03-30 | 2012-10-25 | Kobe Steel Ltd | Copper alloy plate material for electromagnetic shielding material |
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| CN101808498A (en) * | 2010-03-23 | 2010-08-18 | 青岛华轩复合新材料科技有限公司 | Composite plate with electromagnetic shielding and antistatic effects and production process |
| CN201682736U (en) * | 2010-03-23 | 2010-12-22 | 青岛华轩复合新材料科技有限公司 | Composite plate with electromagnetic shielding and antistatic efficacies |
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2015
- 2015-06-02 CN CN201510296379.XA patent/CN104943247A/en active Pending
- 2015-09-07 WO PCT/CN2015/089091 patent/WO2016192228A1/en active Application Filing
Patent Citations (4)
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| JP2007049104A (en) * | 2005-08-08 | 2007-02-22 | Dotetsu Gokin Kk | Electromagnetic shielding method and electromagnetic shielding member |
| CN102148063A (en) * | 2010-02-08 | 2011-08-10 | 滕艺科技有限公司 | Formed article structure of in-mold decoration craft |
| JP2012207275A (en) * | 2011-03-30 | 2012-10-25 | Kobe Steel Ltd | Copper alloy for electromagnetic shielding material |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104988350A (en) * | 2015-07-30 | 2015-10-21 | 张连仲 | High-ductility copper and iron alloy, preparation method thereof, and copper and iron alloy wire |
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| WO2016192228A1 (en) | 2016-12-08 |
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Application publication date: 20150930 |