CN107964638A - A kind of audio magnetic label amorphous soft magnet resonance piece preparation method and its soft label of sound magnetic - Google Patents
A kind of audio magnetic label amorphous soft magnet resonance piece preparation method and its soft label of sound magnetic Download PDFInfo
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- CN107964638A CN107964638A CN201711219062.1A CN201711219062A CN107964638A CN 107964638 A CN107964638 A CN 107964638A CN 201711219062 A CN201711219062 A CN 201711219062A CN 107964638 A CN107964638 A CN 107964638A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C45/00—Amorphous alloys
- C22C45/04—Amorphous alloys with nickel or cobalt as the major constituent
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/03—Making non-ferrous alloys by melting using master alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/11—Making amorphous alloys
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/22—Electrical actuation
- G08B13/24—Electrical actuation by interference with electromagnetic field distribution
- G08B13/2402—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
- G08B13/2428—Tag details
- G08B13/2437—Tag layered structure, processes for making layered tags
- G08B13/244—Tag manufacturing, e.g. continuous manufacturing processes
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/22—Electrical actuation
- G08B13/24—Electrical actuation by interference with electromagnetic field distribution
- G08B13/2402—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
- G08B13/2428—Tag details
- G08B13/2437—Tag layered structure, processes for making layered tags
- G08B13/2442—Tag materials and material properties thereof, e.g. magnetic material details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
- H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
- H01F1/147—Alloys characterised by their composition
- H01F1/153—Amorphous metallic alloys, e.g. glassy metals
- H01F1/15308—Amorphous metallic alloys, e.g. glassy metals based on Fe/Ni
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
- H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
- H01F1/147—Alloys characterised by their composition
- H01F1/153—Amorphous metallic alloys, e.g. glassy metals
- H01F1/15341—Preparation processes therefor
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Power Engineering (AREA)
- Dispersion Chemistry (AREA)
- Automation & Control Theory (AREA)
- Computer Security & Cryptography (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Hard Magnetic Materials (AREA)
Abstract
It is low to solve the preparation process yield rate of existing resonance plate, it is difficult to the problem of stablizing large-scale production the invention discloses a kind of audio magnetic label amorphous soft magnet resonance piece preparation method and its soft label of sound magnetic.Elemental constituent of the present invention by optimizing foundry alloy material is formed, and control prepares the process conditions and annealing of amorphous soft magnet strip, non crystalline structure stabilization, the good amorphous soft magnet strip of thickness evenness can be obtained, show that obtained resonance plate can reach requirement by experiment.
Description
Technical field
The present invention relates to sound magnetic burglary-resisting system technical field, and in particular to a kind of audio magnetic label amorphous soft magnet resonance plate system
Preparation Method and its soft label of sound magnetic.
Background technology
Sound magnetic burglary-resisting system is widely used as one of eas system with its superior performance.Sound magnetic
Burglary-resisting system belongs to single bit radio frequency identifying system, and the modulation system of use is the digital modulation method of amplitude-shift keying (ASK).Antenna
Launch alternating magnetic field, wherein modulated signal is binary coded signal, is made of the single-bit sequence of 0 and 1 two state, pulse
Cycle be 20ms, it is necessary to pulse amplitude it is larger；Carrier signal is 58kHz (or 60kHz, 68kHz) Low Frequency Sine Signals；It is modulated
Signal is exactly the ASK signals that amplitude modulation coefficient is 100%.When audio magnetic label enters the alternating magnetic field (detection zone) of ASK excitations, and mark
When label resonant frequency is consistent with carrier frequency, because magnetostrictive effect, covibration can be produced in label.When shut-off excitation
During alternating magnetic field, according to the piezomagnetism of label, resonance signal can maintain a period of time, and damped oscillation occur；Further, since
Mechanical energy replaces conversion with magnetic field energy, therefore resonance signal is a kind of sound magnetic composite signal.
Sound magnetic burglary-resisting system is generally made of three parts：First, the detector including transmitting antenna and reception antenna, utilizes
Transmitting antenna launches an alternating magnetic field, and a detection induction zone is formed between transmitting antenna and reception antenna, utilizes electromagnetic wave
Whether resonance principle is searched in particular range with the presence of effective label, when i.e. triggering alarm occurs in effective label.Second, sound magnetic
Label, the size that vibration frequency is 58kHz, the bias-field provided by magnetic bias piece are cut into by amorphousmetal strip exactly
And alternating magnetic field collective effect, produce magnetic mechanical in detection zone and resonate and reflex to reception antenna.Third, decoder, it be make it is soft
Label decoding failure, contactless device, label need not contact demagnetization region i.e. decodable code, can be by decoder and laser
Bar code scanner integrator, realizes that disposable commodity of completing are collected money and decoded.
The resonance plate and the bias slice of offer bias magnetic field that audio magnetic label is mainly resonated by generation magnetic mechanical form.Resonance plate
For non crystalline structure, since non crystalline structure does not have the defects of crystal boundary, dislocation, there is no the pinning to domain wall, domain wall be easily moved and
Rotate, can obtain low coercivity, meet soft magnet performance, the performance that resonates to it is beneficial.Bias slice eliminates to produce bias-field
The frequency-doubled effect of resonance plate, changes the resonant frequency of resonance plate within the specific limits；To its demagnetization with tag decoder.Resonance plate
In preparation, should consider the selection of soft magnetic materials, also to control technique to obtain amorphous microstructure, therefore, it is necessary into
The preparation process of one-step optimization resonance plate.
The content of the invention
It is an object of the invention to provide a kind of audio magnetic label amorphous soft magnet resonance piece preparation method and its soft mark of sound magnetic
Label are low to solve the preparation process yield rate of existing resonance plate, it is difficult to the problem of stablizing large-scale production.
To achieve the above object, the technical scheme is that：
A kind of audio magnetic label amorphous soft magnet resonance piece preparation method, comprises the following steps：
S101, using five kinds of elements of Fe, Co, Ni, Si and B prepare foundry alloy material, each member of the foundry alloy material
Plain proportion is：Fe 25.8-26.8%, Co 10.6-12%, Ni57.6-58%, Si 0.8% and B 3.79%；
S102, under gas pressure by the foundry alloy of molten state be ejected at a high speed rotatably cool down copper roller on, prepare thickness
For 18-28 μm of amorphous soft magnet strip；
S103, the resonant frequency and resonant amplitude for detecting amorphous soft magnet strip, make annealing treatment and cut out to form resonance plate.
Further, the specific steps for preparing foundry alloy material using five kinds of elements of Fe, Co, Ni, Si and B include：
According to each element proportion by Fe, Co, Ni, Si grain that content is 99.99%, the B-Fe containing 19.89wt.%B
Intermediate alloy, which is added to smelting furnace and is stirred, is heated to molten state, when the vacuum degree in vacuum chamber of smelting furnace reaches
The argon gas that purity is 99.999% is filled with afterwards, and the melting of mother alloy ingot is carried out after gas washing.
Further, the mother alloy ingot carries out melt back 3-5 times so that each element in the mother alloy ingot
It is uniformly mixed.Due to being added in the form of simple metal more than element in alloy, easily produce and be mingled with and be segregated, increase melting number,
It can make in alloy constituent element mixing evenly, molten metal flowing property is more preferable when preparing strip, beneficial to obtaining high-quality surface
Strip.
Further, described be ejected into the foundry alloy of molten state using gas pressure is rotatably cooled down on copper roller at a high speed,
The step of preparing the amorphous soft magnet strip that thickness is 18-28 μm specifically includes：
Nitrogen is set to spray P=0.05Mpa, nozzle to copper roll spacing exists from for h=0.1-0.2mm, and the rotating speed of copper roller
1800-1980rpm, preparation prepare the amorphous soft magnet strip that thickness is 18-28 μm.
Since the cooldown rate of single roller fusing quick-quenching method is high, solidified superalloy (metal) can be made to obtain nanometer-size die or obtain
Obtain amorphous microstructure.
Further, the resonant frequency and resonant amplitude of the detection amorphous soft magnet strip, makes annealing treatment and cuts out to be formed
The step of resonance plate, specifically includes：
In 320-360 DEG C of annealing temperature, annealing time for 2-10min have magnetic field or without magnetic field condition under to described non-
Brilliant soft magnetic ribbon is made annealing treatment, and cuts out to form resonance plate；
The magnetic field condition of annealing is respectively：Magnetic field when longitudinally, laterally and vertically three kinds of modes of zone face are placed is strong
Degree is respectively And
Preferably, it is that thickness made from r=1800rpm, h=0.1mm, P=0.05MPa is 25 μm of amorphous in process conditions
Soft magnetic ribbon, after 340 DEG C of vertical zone face magnetic-field annealing 8min processing, obtains best sound magnetic property.
Further, when preparing foundry alloy material, add at least one amorphous and facilitate element, the amorphous facilitates element
Proportion be less than 1%；The amorphous facilitates element to include C, P, Ge, Nb, Ta, Mo, Cr, Mn one of which or a variety of mixing
Thing.
Further, in amorphous soft magnet strip make annealing treatment while apply and each be less than to tension, the tension
Alloy yield strength and it is less than 100Mpa.
Based on same inventive concept, the resonance plate prepared using the above method, present invention also offers a kind of soft mark of sound magnetic
Label, including rubber shell, tabletting, bias slice, an at least above method prepare resonance plate, the resonance plate, the tabletting with
And the bias slice is encapsulated in the rubber shell successively.
Further, the rubber shell includes base and lid, the base and the lid be oppositely arranged it is fluted,
The groove forms an accommodating cavity, and the resonance plate, the tabletting and the bias slice are arranged in the accommodating cavity.
Further, the bottom of the base is provided with the pad for isolating metal face, is provided with the pad viscous
Layer is connect, the lid top is provided with bar shaped code layer.
The method of the present invention has the following advantages that：
The audio magnetic label of the present invention amorphous soft magnet resonance piece preparation method and its soft label of sound magnetic, by optimizing foundry alloy
The elemental constituent of material is formed, and control prepares the process conditions of amorphous soft magnet strip, while by annealing, can be obtained
Stablize to non crystalline structure, the good amorphous soft magnet strip of thickness evenness, show that obtained resonance plate can reach by experiment
Requirement.
Brief description of the drawings
A kind of Fig. 1 audio magnetic labels provided in an embodiment of the present invention amorphous soft magnet resonance piece preparation method FB(flow block).
A kind of Fig. 2 devices that amorphous soft magnet strip is prepared using single roller fusing quick-quenching method provided in an embodiment of the present invention.
A kind of Fig. 3 soft label sectional structure decomposition diagrams of sound magnetic provided in an embodiment of the present invention.
Embodiment
Following embodiments are used to illustrate the present invention, but are not limited to the scope of the present invention.
Embodiment 1
As shown in Figure 1, an embodiment of the present invention provides a kind of audio magnetic label amorphous soft magnet resonance piece preparation method, including
Following steps：
S101, using five kinds of elements of Fe, Co, Ni, Si and B prepare foundry alloy material, each member of the foundry alloy material
Plain proportion is：Fe 25.8-26.8%, Co 10.6-12%, Ni57.6-58%, Si 0.8% and B 3.79%；
S102, rotatably cooled down on copper roller at a high speed using being ejected into the foundry alloy of molten state under gas pressure, is prepared thick
Spend the amorphous soft magnet strip for 18-28 μm；
S103, the resonant frequency and resonant amplitude for detecting amorphous soft magnet strip, make annealing treatment and cut out to form resonance plate.
Wherein, the specific steps for preparing foundry alloy material using five kinds of elements of Fe, Co, Ni, Si and B include：
According to each element proportion by Fe, Co, Ni, Si grain of content 99.99%, in the B-Fe containing 19.89wt.%B
Between alloy be added to smelting furnace and be stirred and be heated to molten state, when the vacuum degree in vacuum chamber of smelting furnace reachesAfterwards
The argon gas that purity is 99.999% is filled with, the melting of mother alloy ingot is carried out after gas washing.
Wherein, the mother alloy ingot carries out melt back 3-5 times so that each element mixing in the mother alloy ingot
Uniformly.Due to being added in the form of simple metal more than element in alloy, easily produce and be mingled with and be segregated, increase melting number, can make
Evenly, molten metal flowing property is more preferable when preparing strip, beneficial to the strip for obtaining high-quality surface for constituent element mixing in alloy.
As shown in Figure 2, there is provided a kind of device 10 that amorphous soft magnet strip is prepared using single roller fusing quick-quenching method, the dress
Put including cooling copper roller 11, quartzy smelting furnace 14 and nitrogen aerating device 15 etc..17 face of nozzle of quartzy smelting furnace 14 is cold
Foundry alloy is thermally formed foundry alloy liquation 18, nitrogen inflation by but 11 surface of copper roller, quartzy smelting furnace 14 by induction coil 16
Device 15 is connected with the quartzy top of smelting furnace 14, and cooling copper roller 11 rotates at a high speed under the drive of rotation axis 12, on cooling copper roller 11
Cooling cycle through hole 13 is provided with, amorphous soft magnet strip 19 is formed on 11 contact surface of nozzle 17 and cooling copper roller.In strip
In preparation process, rotating speed (r), the nitrogen of cooling copper roller spray (P), the size of nozzle, the distance of shape and nozzle to copper roller
(h) an important factor for being all the technique.
Wherein, it is described that the foundry alloy of molten state is ejected into high speed rotatably on cooling copper roller using under gas pressure, system
The step of standby thickness is 18-28 μm of amorphous soft magnet strip specifically includes：
Nitrogen is set to spray P=0.05Mpa, nozzle to copper roll spacing exists from for h=0.1-0.2mm, and the rotating speed of copper roller
1800-1980rpm, preparation prepare the amorphous soft magnet strip that thickness is 18-28 μm.
Since the cooldown rate of single roller fusing quick-quenching method is high, solidified superalloy (metal) can be made to obtain nanometer-size die or obtain
Obtain amorphous microstructure.
Wherein, the resonant frequency and resonant amplitude of the detection amorphous soft magnet strip, makes annealing treatment and cuts out to form resonance
The step of piece, specifically includes：
In 320-360 DEG C of annealing temperature, annealing time for 2-10min have magnetic field or without magnetic field condition under to described non-
Brilliant soft magnetic ribbon is made annealing treatment, and cuts out to form resonance plate；
The magnetic field condition of annealing is respectively：Magnetic field when longitudinally, laterally and vertically three kinds of modes of zone face are placed is strong
Degree is respectively And
Preferably, it is that thickness made from r=1800rpm, h=0.1mm, P=0.05MPa is 25 μm of amorphous in process conditions
Soft magnetic ribbon, after 340 DEG C of vertical zone face magnetic-field annealing 8min processing, obtains best sound magnetic property.
Wherein, when preparing foundry alloy material, add at least one amorphous and facilitate element, the amorphous facilitates the ratio of element
1% is less than again；The amorphous facilitates element to include C, P, Ge, Nb, Ta, Mo, Cr, Mn one of which or a variety of mixtures.
Wherein, in amorphous soft magnet strip make annealing treatment while apply and each be less than alloy to tension, the tension
Yield strength and it is less than 100Mpa.
Embodiment 2
Based on same inventive concept, the resonance plate prepared using the above method, as shown in figure 3, present invention also offers one
The kind soft label 20 of sound magnetic, the soft label 20 of sound magnetic include rubber shell, 24 bias slice 25 of tabletting, an at least above method and prepare
Resonance plate, the resonance plate 23, the tabletting 24 and the bias slice 25 are encapsulated in the rubber shell successively.
Wherein, the rubber shell includes base 21 and lid 22, and the base 21 and the lid 22 are relatively set with
Groove, the groove form an accommodating cavity, and the resonance plate 23, tabletting 24 and bias slice 25 are arranged in the accommodating cavity.
Wherein, the bottom of the base 21 is provided with the pad 26 for isolating metal face, is provided with the pad 26
Adhesive linkage 27,22 top of lid are provided with bar shaped code layer 28.
Optionally, rubber shell thickness is 0.3mm；Tabletting is big density polyethylene polyester (thickness 0.127mm)；Pad
It is two-sided silicon cylinder-packing pad.
The audio magnetic label of the present invention amorphous soft magnet resonance piece preparation method and its soft label of sound magnetic, by optimizing foundry alloy
The elemental constituent of material is formed, and control prepares the process conditions of amorphous soft magnet strip, while by annealing, can be obtained
Stablize to non crystalline structure, the good amorphous soft magnet strip of thickness evenness, show that obtained resonance plate can reach by experiment
Requirement.
Although above with general explanation and specific embodiment, the present invention is described in detail, at this
On the basis of invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Therefore,
These modifications or improvements without departing from theon the basis of the spirit of the present invention, belong to the scope of protection of present invention.
Claims (10)
1. a kind of audio magnetic label amorphous soft magnet resonance piece preparation method, it is characterised in that the described method comprises the following steps：
S101, using five kinds of elements of Fe, Co, Ni, Si and B prepare foundry alloy material, each element ratio of the foundry alloy material
Weight is：Fe 25.8-26.8%, Co 10.6-12%, Ni 57.6-58%, Si 0.8% and B 3.79%；
The foundry alloy material of molten state, be ejected on high-speed rotating cooling copper roller by S102 under gas pressure, prepares thickness
For 18-28 μm of amorphous soft magnet strip；
S103, the resonant frequency and resonant amplitude for detecting amorphous soft magnet strip, make annealing treatment and cut out to form resonance plate.
2. audio magnetic label according to claim 1 amorphous soft magnet resonance piece preparation method, it is characterised in that the use
The specific steps that five kinds of elements of Fe, Co, Ni, Si and B prepare foundry alloy material include：
According to each element proportion by 99.99% Fe, Co, Ni, Si grain, the B-Fe intermediate alloys containing 19.89wt.%B add
Enter to smelting furnace to be stirred and be heated to molten state, when the vacuum degree in vacuum chamber of smelting furnace reachesPurity is filled with after Pa
For 99.999% argon gas, the melting of mother alloy ingot is carried out after gas washing.
3. audio magnetic label according to claim 2 amorphous soft magnet resonance piece preparation method, it is characterised in that female conjunction
Golden ingot casting carries out melt back 3-5 times so that each element is uniformly mixed in the mother alloy ingot.
4. audio magnetic label according to claim 1 amorphous soft magnet resonance piece preparation method, it is characterised in that the utilization
The foundry alloy of molten state is ejected on high-speed rotating cooling copper roller by gas pressure, and it is soft to prepare the amorphous that thickness is 18-28 μm
The step of magnetic strip, specifically includes：
Set nitrogen to spray P=0.05Mpa, nozzle to copper roll spacing from for h=0.1-0.2mm, and copper roller rotating speed in 1800-
1980rpm, preparation prepare the amorphous soft magnet strip that thickness is 18-28 μm.
5. audio magnetic label according to claim 1 amorphous soft magnet resonance piece preparation method, it is characterised in that the detection
The resonant frequency and resonant amplitude of amorphous soft magnet strip, make annealing treatment and cut out the step of forming resonance plate and specifically include：
In 320-360 DEG C of annealing temperature, annealing time for 2-10min have magnetic field or without magnetic field condition under it is soft to the amorphous
Magnetic strip is made annealing treatment, and cuts out to form resonance plate；
The magnetic field condition of annealing is respectively：Magnetic field intensity point when longitudinally, laterally and vertically three kinds of modes of zone face are placed
It is notOe、Oe andOe。
6. audio magnetic label according to claim 1 amorphous soft magnet resonance piece preparation method, it is characterised in that female preparing
During alloy material, add at least one amorphous and facilitate element, the amorphous facilitates the proportion of element to be less than 1%；The amorphous promotees
Include C, P, Ge, Nb, Ta, Mo, Cr, Mn one of which or a variety of mixtures into element.
7. audio magnetic label according to claim 1 amorphous soft magnet resonance piece preparation method, it is characterised in that soft in amorphous
Magnetic strip make annealing treatment while apply each to tension, and the tension is less than alloy yield strength and is less than 100Mpa.
8. a kind of soft label of sound magnetic, it is characterised in that the soft label of sound magnetic includes rubber shell, tabletting, bias slice, at least one
Such as claim 1-7 any one of them resonance plates, the resonance plate, the tabletting and the bias slice are encapsulated in institute successively
State in rubber shell.
9. the soft label of sound magnetic according to claim 8, it is characterised in that the rubber shell includes base and lid, institute
State base and lid is oppositely arranged fluted, one accommodating cavity of the groove formation, the resonance plate, tabletting and bias slice setting
In the accommodating cavity.
10. a kind of soft label of sound magnetic according to claim 8, it is characterised in that the bottom of the base, which is provided with, to be used for
The pad in isolating metal face, is provided with adhesive linkage on the pad, the lid top is provided with bar shaped code layer.
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| CN201711219062.1A CN107964638A (en) | 2017-11-28 | 2017-11-28 | A kind of audio magnetic label amorphous soft magnet resonance piece preparation method and its soft label of sound magnetic |
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| CN201711219062.1A CN107964638A (en) | 2017-11-28 | 2017-11-28 | A kind of audio magnetic label amorphous soft magnet resonance piece preparation method and its soft label of sound magnetic |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114202872A (en) * | 2021-11-10 | 2022-03-18 | 宁波讯强电子科技有限公司 | Narrow arched resonance sheet, manufacturing method thereof and narrow acoustic-magnetic anti-theft tag |
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|---|---|---|---|---|
| CN1228871A (en) * | 1996-06-27 | 1999-09-15 | 联合讯号公司 | Metallic glass alloys for mechanically resonant marker surveillance systems |
| CN1323360A (en) * | 1998-08-13 | 2001-11-21 | 真空融化股份有限公司 | Method for annealing an amorphous alloy and method for manufacturing a marker |
| CN1340181A (en) * | 1999-02-10 | 2002-03-13 | 真空融化股份有限公司 | Magneto-acoustic marker for electronic article surveillance having reduced size and high signal amplitude |
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| CN104878324A (en) * | 2015-06-01 | 2015-09-02 | 大连理工大学 | Soft-magnetic high-entropy block amorphous alloy FeCoNiMB and preparation method thereof |
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| CN114202872A (en) * | 2021-11-10 | 2022-03-18 | 宁波讯强电子科技有限公司 | Narrow arched resonance sheet, manufacturing method thereof and narrow acoustic-magnetic anti-theft tag |
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