CN108564754A - A kind of acoustic magnetic anti-theft label and its bias slice - Google Patents
A kind of acoustic magnetic anti-theft label and its bias slice Download PDFInfo
- Publication number
- CN108564754A CN108564754A CN201810626347.5A CN201810626347A CN108564754A CN 108564754 A CN108564754 A CN 108564754A CN 201810626347 A CN201810626347 A CN 201810626347A CN 108564754 A CN108564754 A CN 108564754A
- Authority
- CN
- China
- Prior art keywords
- bias slice
- magnetic anti
- theft label
- acoustic magnetic
- bias
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 44
- 229910052742 iron Inorganic materials 0.000 claims abstract description 22
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 18
- 239000011572 manganese Substances 0.000 claims abstract description 18
- 229910052723 transition metal Inorganic materials 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 11
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims abstract description 4
- 239000000956 alloy Substances 0.000 claims description 11
- 229910045601 alloy Inorganic materials 0.000 claims description 8
- 238000000137 annealing Methods 0.000 claims description 6
- 238000005097 cold rolling Methods 0.000 claims description 6
- 230000005389 magnetism Effects 0.000 abstract description 9
- 230000006378 damage Effects 0.000 abstract description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 7
- 229910052804 chromium Inorganic materials 0.000 description 7
- 239000011651 chromium Substances 0.000 description 7
- 230000006872 improvement Effects 0.000 description 7
- 238000001514 detection method Methods 0.000 description 6
- 230000005347 demagnetization Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 239000004615 ingredient Substances 0.000 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 238000005452 bending Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005098 hot rolling Methods 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000005300 metallic glass Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- 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
- G08B13/2405—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 characterised by the tag technology used
- G08B13/2422—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 characterised by the tag technology used using acoustic or microwave tags
-
- 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
- G08B13/2434—Tag housing and attachment details
Abstract
The invention discloses a kind of acoustic magnetic anti-theft label and its bias slices, wherein, at least one magnesium-yttrium-transition metal and surplus of the disclosed bias slice for acoustic magnetic anti-theft label by content by the manganese, content summation of 10 14wt% no more than 7wt% are made of the material of iron, the remanent magnetism of the bias slice is more than 12000Gs, and the width of the bias slice is 1.5 3.8mm；Wherein, the magnesium-yttrium-transition metal does not include manganese and iron.By the present invention in that the acoustic magnetic anti-theft label made of narrow and material more preferably bias slice, can effectively avoid the resonant frequency of acoustic magnetic anti-theft label after diagonally reversing from increasing, to substantially increase the ability of label resistance to mechanical destruction.
Description
Technical field
The present invention relates to sound magnetic technical field of burglary prevention, more particularly, to a kind of acoustic magnetic anti-theft label and its bias slice.
Background technology
Sound magnetic burglary-resisting system is widely used as one of eas system with its superior performance.Sound magnetic
The concrete operating principle of burglary-resisting system is：Transmitting antenna emits alternating magnetic field, when acoustic magnetic anti-theft label enters alternating magnetic field (detection
Area), and when acoustic magnetic anti-theft label resonant frequency is consistent with the carrier frequency in alternating magnetic field, because of magnetic-elasticity resonance effects, sound
Resonance plate in magnetic anti-theft label will produce resonance signal under the action of the magnetic field that bias slice provides and be received antenna reception
It arrives, to detect the presence of acoustic magnetic anti-theft label.Sound magnetic burglary-resisting system generally consists of two parts：First, including transmitting antenna
With the detector of reception antenna, launches an alternating magnetic field using transmitting antenna, form one between transmitting antenna and reception antenna
Whether a detection induction zone is searched in particular range using magnetic-elasticity resonance principle with the presence of effective label, when effective label
There is i.e. triggering alarm；Second is that acoustic magnetic anti-theft label, the resonance plate that is mainly resonated by generation magnetic mechanical and bias magnetic field is provided
Bias slice forms, and wherein resonance plate is accurately cut into the work of the bias magnetic field provided by bias slice by amorphousmetal strip
With and generate the size that resonant frequency is 58kHz, magnetic mechanical can be generated in detection zone and resonate and be reflected into reception antenna.
The present inventor has found in the practice of the invention, and following technical problem exists in the prior art：
The existing acoustic magnetic anti-theft label for rectangular-shape in use when, since the shell of acoustic magnetic anti-theft label is
Plastics (PS) shell with certain deformation behavior, thus can often occur because by outer force effect and occur being bent or bending show
As, but the bending of general level or bending can't significantly affect the performance of acoustic magnetic anti-theft label.Therefore it is being bent
It, generally can be with normal use after acoustic magnetic anti-theft label is reverted to straightened condition again or when bending.
But inventor has found in practice process, when acoustic magnetic anti-theft label is torn from base stock, if the speed torn
It spends fast and cannot be torn completely along width direction, then since the primer of label is very viscous and plastic housing of label is easy to become
Shape, label will appear different degrees of diagonal torsion, and (and " twisting fried dough twist, twist a towel " is equally, i.e., the both ends of label are respectively by phase
Anti- torque forces and make axis torsion of the label on its length direction, specifically refer to Fig. 1；Or one end of label is solid
Fixed, the other end is made label be reversed around the axis by torque forces).Inventor find, when to acoustic magnetic anti-theft label into
When row diagonally reverses and bias slice is also diagonally reversed, this torsion can be to the magnetic field performance production of the bias slice of the prior art
Raw bigger influence will appear the obvious demagnetization phenomenon of degree if even if there is some slight distortion bias slices.Its
In, bias slice will appear different degrees of demagnetization phenomenon according to the amplitude diagonally reversed and the number diagonally reversed, torsion
Amplitude is bigger, then the demagnetization of bias slice is more serious, and the number reversed is more, and the demagnetization of bias slice also can be more serious.When
When the bias magnetic field of bias slice is weakened because of demagnetization, then can cause the resonance plate of acoustic magnetic anti-theft label resonant frequency occur compared with
(amplitude of variation is usually that frequency increases 0.5 kHz or more) is widely varied, has exceeded the resonance frequency of acoustic magnetic anti-theft label in this way
The error range (error range of permission is generally in 0.5kHz) that rate allows, leads to the resonant frequency of part acoustic magnetic anti-theft label
The cisco unity malfunction no longer in the detection band limits of sound magnetic burglary-resisting system, such as：If the resonance frequency of acoustic magnetic anti-theft label
The detection window of rate is 57.5kHz-58.5kHz, and resonant frequency is distributed as 57.7kHz-58.3 kHz in actual work, in this way
To acoustic magnetic anti-theft label carry out diagonally reverse after, resonant frequency can rise 0.5kHz so that originally 58.1-58.3kHz this
The resonant frequency of a part of label is no longer to performance failure of alarming in the detection band limits of sound magnetic burglary-resisting system.
Invention content
In view of the above-mentioned problems, the purpose of the present invention is to provide a kind of acoustic magnetic anti-theft label and its bias slice, by using
Narrow and material more preferably acoustic magnetic anti-theft label made of bias slice, can effectively avoid acoustic magnetic anti-theft label after diagonally reversing
Resonant frequency increase, to substantially increase the label resistance to mechanical destruction ability.
To achieve the goals above, one embodiment of the invention provides a kind of bias slice for acoustic magnetic anti-theft label, institute
It states at least one magnesium-yttrium-transition metal of the manganese that bias slice is 10-14wt% by content, content summation no more than 7wt% and surplus is
The material of iron is made, and the remanent magnetism of the bias slice is greater than or equal to 12000Gs, and the width of the bias slice is 1.5-3.8mm；Its
In, the magnesium-yttrium-transition metal does not include manganese and iron.
As the improvement of said program, the width of the bias slice is 1.8-3.2mm.
As the improvement of said program, the length of the bias slice is 25-38mm.
As the improvement of said program, the thickness of the bias slice is 0.065-0.18mm.
As the improvement of said program, the bias slice is no more than by the manganese that content is 10-14wt%, content summation
At least one magnesium-yttrium-transition metal and surplus of 7wt% is the alloy strip of iron, and first cold rolling is then passed through more than 5 minutes and is less than
After 600 DEG C of annealing, is cut and be made.
Another embodiment of the present invention provides a kind of acoustic magnetic anti-theft label, including box body, at least a resonance plate and above-mentioned
Bias slice described in one scheme；Resonant cavity is equipped in the box body, an at least resonance plate is set to described with the bias slice
In resonant cavity, and the bias slice and an at least resonance plate are in layered arrangement.
Another embodiment of the present invention provides a kind of acoustic magnetic anti-theft label comprising box body, at least a resonance plate and above-mentioned
Bias slice described in either a program；Resonant cavity is equipped in the box body, an at least resonance plate is set in the resonant cavity；Its
In,
The bias slice is set in the box body and outside the resonant cavity, and is in layer with an at least resonance plate
Shape arranges；Volume in the box body is more than the occupied space of the resonant cavity；
Or, the bias slice is set on the outer surface of the box body, and it is in layered arrangement with an at least resonance plate.
As the improvement of said program, the acoustic magnetic anti-theft label is more than 15 degree of torsion by windup-degree at least once
And after being restored to straightened condition, the elevation amplitude of resonant frequency is less than or equal to 0.3kHz.
As the improvement of said program, the form of torsion is diagonal torsion.
As the improvement of said program, the resonant frequency before the acoustic magnetic anti-theft label torsion is 57.5kHz-58.5
kHz。
Compared with the prior art, the acoustic magnetic anti-theft label and its bias slice provided by the invention have below beneficial to effect
Fruit：
The bias slice of the acoustic magnetic anti-theft label of the present invention is no more than by the manganese that content is 10-14wt%, content summation
At least one magnesium-yttrium-transition metal and surplus other than manganese and iron of 7wt% is made of the material of iron, the bias slice described in this way
Coercivity it is not high not low more moderate (preferably 15-45Oe), and the remanent magnetism of the bias slice is larger, compared with the prior art
The width of the bias slice can be made it is smaller (coercivity is higher, and remanent magnetism is bigger, then bias slice generate magnetic field it is stronger,
Ensureing that magnetic field is stronger in this way, the size of bias slice can be done smaller).And inventor is by deeply grinding
Study carefully, find when the width of the bias slice is in 1.5-3.8mm, even if diagonal torsion occurs in the bias slice, but is reverting to
After straightened condition, the difference unobvious of the bias magnetic field and the preceding bias magnetic field generated of diagonal torsion that generate are not in
Reduction by a relatively large margin.Therefore, even if the bias slice is diagonally reversed by external force, the bias magnetic field generated can't make sound
The resonant frequency of magnetic anti-theft label varies widely, and is effectively avoided after diagonally reversing this makes it possible to make acoustic magnetic anti-theft label
The raising of resonant frequency, the ability that the resistance to mechanical to substantially increase acoustic magnetic anti-theft label is destroyed.
Description of the drawings
In order to illustrate more clearly of technical scheme of the present invention, attached drawing needed in embodiment will be made below
Simply introduce, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the present invention, general for this field
For logical technical staff, without creative efforts, other drawings may also be obtained based on these drawings.
Fig. 1 is status diagram when acoustic magnetic anti-theft label is diagonally bent；
Fig. 2 is the structural schematic diagram of the first acoustic magnetic anti-theft label provided in an embodiment of the present invention；
Fig. 3 is the structural schematic diagram of second of acoustic magnetic anti-theft label provided in an embodiment of the present invention；
Fig. 4 is the structural schematic diagram of the third acoustic magnetic anti-theft label provided in an embodiment of the present invention.
Reference sign：20. box body；21. resonance plate；22. bias slice；23. resonant cavity；24. accommodating chamber；25. every
Plate.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment one：
Fig. 2 is referred to, an embodiment of the present invention provides a kind of acoustic magnetic anti-theft labels comprising box body 20, at least one resonance
Piece 21 and bias slice 22；Resonant cavity 23 is equipped in the box body 20, an at least resonance plate is set to institute with the bias slice 22
It states in resonant cavity 23, and the bias slice 22 and an at least resonance plate 21 are in layered arrangement.
Wherein, the bias slice 22 is no more than at least one of 7wt% by content for the manganese of 10-14wt%, content summation
Magnesium-yttrium-transition metal (magnesium-yttrium-transition metal does not include manganese and iron) and surplus is made of the material of iron, the coercive of the bias slice 22
Power Hc is more than 15Oe (preferably between 15-45Oe), and the remanent magnetism of the bias slice 22 is greater than or equal to 12000Gs, the biasing
The width of piece 22 is 1.5-3.8mm.
The embodiment of the present invention has the advantages that：
The bias slice 22 of the acoustic magnetic anti-theft label of the embodiment of the present invention is total by the manganese that content is 10-14wt%, content
It is made of the material of iron at least one magnesium-yttrium-transition metal and surplus other than manganese and iron no more than 7wt%.It is described inclined
The coercivity for setting piece 22 is moderate (preferably 15-45Oe), and remanent magnetism is higher (12000 Gs), compared with the prior art, the biasing
The width of piece 22 can be made smaller (being less than 4.5-6mm).And inventor has found to work as the bias slice by further investigation
22 width is in 1.5-3.8mm, even if the bias slice 22 occurs after diagonally reversing after reverting to straightened condition, generation
Bias magnetic field with torsion before generate bias magnetic field difference unobvious, be not in reduction by a relatively large margin.Therefore, institute
Even if state bias slice 22 by external force with 15 degree or more of windup-degree diagonally torsion after, generate bias magnetic field can't make
Large change occurs in the resonant frequency of acoustic magnetic anti-theft label, and (variation of resonant frequency is less than 0.5kHz, such as please refers to following table
2) raising of resonant frequency after diagonally reversing can effectively be avoided by, allowing for acoustic magnetic anti-theft label in this way, to substantially increase
The ability that the resistance to mechanical of acoustic magnetic anti-theft label is destroyed.
It should be noted that windup-degree refers to：When the acoustic magnetic anti-theft label is reversed, force torsion
The angle that position after the torsion at position is turned over relative to the position before torsion.
In addition, the set-up mode that the bias slice 22 is set in the resonant cavity 23 can be：Bias slice 22 is located at described
It is fixed in resonant cavity 23 and with the madial wall of box body 20, in this way when box body 20 twists deformation, bias slice 22 can also be followed
Twist deformation；Or bias slice 22 is simply positioned in resonant cavity 23 and is not fixed, as long as in this way box body 20 do not occur it is big
Torsional deflection, then bias slice 22 can not be by torsional deflection, to avoid the torsional deflection of box body 20 to bias slice 22
Magnetic field performance influence.
For the ease of the understanding to the embodiment of the present invention, embodiment of the present invention is illustrated in greater detail below at this：
In embodiments of the present invention, it is preferable that the bias slice 22 is wavelike structure, is conducive to improve bias slice in this way
The ability of 22 resistance torsional deflection.
In embodiments of the present invention, it is preferable that the width of the bias slice 22 is 1.8-3.2mm, in this way in bias slice 22
Length and in the case that thickness is setting, generated before can making its bias magnetic field that generates of the bias slice 22 and torsion
Bias magnetic field difference smaller, accordingly even when the bias slice 22 is diagonally reversed by external force, the resonant frequency of the resonance plate 21
Amplitude of variation can very little (variation of resonant frequency be less than 0.3 kHz, such as please refer to following table 2), so that it is guaranteed that the sound
The normal work of magnetic anti-theft label.
In foregoing invention embodiment, it is preferable that the length of the bias slice 22 is 25-38mm.Additionally it is preferred that institute
The thickness for stating bias slice 22 is 0.065-0.18mm.Certainly, since the length of bias slice 22 and the value of thickness change, not
More apparent influence can be generated on the magnetic field performance after the torsion of bias slice 22, therefore the length of bias slice 22 may be used also with thickness
To take other numerical value according to actual conditions, it is not specifically limited herein.
In foregoing invention embodiment, specifically, the bias slice 22 is by the manganese that content is 10-14wt%, content summation
At least one magnesium-yttrium-transition metal and surplus no more than 7wt% are the alloy strip of iron, first cold rolling be then passed through more than 5 minutes and
After annealing less than 600 DEG C, is cut and be made.The biasing is made by technique provided in an embodiment of the present invention
Piece 22 can so that the coercivity of the bias slice 22 is 15-45Oe, remanent magnetism 12000-13200Gs, to be conducive to carry
The anti-demagnetization capability of the high bias slice 22.
More specifically, the material of the bias slice 22 (being specially the alloy strip) is preferably：Content is 12.1 wt%'s
Manganese, content are the chromium of 0.05wt%, and surplus is iron；Alternatively, content is the manganese of 12.8wt%, content is the nickel of 1.1wt%, content
For the chromium of 0.05wt%, surplus is iron；Or the manganese that content is 10.5 wt%, content are the molybdenum of 1.1wt%, content is
The chromium of 0.05wt%, content are the titanium of 0.3wt%, and surplus is iron.
Illustratively, when the material of the bias slice 22 (being specially the alloy strip) is three of the above, accordingly, institute
Stating the ingredient of bias slice 22 and processing technology has following three kinds：
(1) it will be cast after alloy material (content is the manganese of 12.1wt%, and content is the chromium of 0.05wt%, and surplus is iron) melting
Ingot, is hot-forged and hot rolling is to 5mm, becomes alloy strip, removes surface oxide layer, then it is 0.5mm, 850 DEG C of monophase fields to be cold rolled to thickness
Fast softening processing, prevents excessive oxidation, is then 0.065-0.18mm with roller mill direct cold rolling to thickness, is more than 5 minutes
And after the annealing less than 600 DEG C, slitting is coiled at the difference of 1.5-3.8mm wide, then coiling is cut into high-speed shearing machine
The bias slice 22 of 5-38mm long.
(2) by alloy material, (content is the manganese of 12.8wt%, and content is the nickel of 1.1wt%, and content is 0.05 wt%'s
Chromium, surplus are iron) ingot casting after melting, it is hot-forged and 5mm is arrived in hot rolling, become alloy strip, removing surface is cold rolled to thickness and is again
0.5mm, 850 DEG C of monophase field fast softening processing, is then 0.065-0.18mm with roller mill direct cold rolling to thickness, is more than 5
Minute and the annealing less than 600 DEG C after, slitting is coiled at the difference of 1.5-3.8 mm wide, then by coiling high speed shear
Machine is cut into the bias slice 22 of 5-38mm long.
(3) by alloy material, (content is the manganese of 10.5wt%, and content is the molybdenum of 1.1wt%, and content is 0.05wt%'s
Chromium, content are the titanium of 0.3wt%, and surplus is iron) ingot casting after melting, it is hot-forged and 5mm is arrived in hot rolling, become alloy strip, removing surface
It is 0.5mm to be cold rolled to thickness again, then 850 DEG C of monophase field fast softening processing are to thickness with roller mill direct cold rolling
0.065-0.18mm, more than 5 minutes and after the annealing less than 600 DEG C, slitting is coiled at the difference of 1.5-3.8mm wide,
Coiling is cut into the bias slice 22 of 5-38mm long with high-speed shearing machine again.
Wherein, the canonical parameter of the magnetic property of the bias slice 22 obtained by above-mentioned three kinds of ingredients and processing technology is asked
Referring to the following table 1：
Table 1：The canonical parameter table of the magnetic property for the bias slice 22 that three kinds of ingredients and processing technology obtain
| Ingredient and technique | Hc(Oe) | Br(Gs) |
| 1 | 32 | 12800 |
| 2 | 22 | 13200 |
| 3 | 43 | 12000 |
By that can be obtained in table 1：Ingredient provided in an embodiment of the present invention can be processed strong by above-mentioned three kinds of processing technologys
The stupid higher bias slice 22 of the moderate remanent magnetism of power, is conducive to the anti-demagnetization capability for improving the bias slice 22.
In foregoing invention embodiment, illustratively, the acoustic magnetic anti-theft label is more than by windup-degree at least once
After 15 degree diagonal is reversed and be restored to straightened condition, the elevation amplitude of resonant frequency, which is less than or equal to 0.3kHz, (such as asks
With reference to following table 2).
In foregoing invention embodiment, specifically, the resonant frequency before the acoustic magnetic anti-theft label torsion is 57.5
KHz-58.5kHz.
In the above-described embodiments, in terms of comprehensive, the bias slice 22 provided in an embodiment of the present invention and the sound magnetic are antitheft
Label has：Size narrows, and can effectively avoid the raising of resonant frequency after diagonally reversing, and the ability that resistance to mechanical is destroyed obtains
To the advantages of raising.Wherein, in order to prove the acoustic magnetic anti-theft label provided in an embodiment of the present invention after diagonally being reversed
Its resonant frequency elevation amplitude Δ f unobvious (using Δ f≤0.5KHz as judgment criteria), provide following test data hereby
Table：
Table 2：By the variation test table of the resonant frequency of the acoustic magnetic anti-theft label diagonally reversed
Table 2 is referred to, (material composition is preferably the manganese that content is 12wt% to the bias slice 22 in the table, and content is
The chromium and surplus of 0.05wt% is iron) thickness be 0.085mm, length be 28-35mm (length scale of bias slice 22 with it is thick
Influence of the degree size to the magnetic field stability of the bias slice of label is little, this is common sense for those in the field), remanent magnetism is about
For 12800Gs, the diagonal torsion that windup-degree is more than 15 degree is carried out to it.As shown in Table 2, the width of the bias slice 22 compares
When narrow, acoustic magnetic anti-theft label elevation amplitude of its resonant frequency after diagonally reversing is substantially reduced.Wherein, it is in width
When 1.8-3.2mm, acoustic magnetic anti-theft label elevation amplitude of its resonant frequency after repeatedly diagonal torsion is less than
0.5kHz。
Embodiment two：
An embodiment of the present invention provides another acoustic magnetic anti-theft labels, refer to Fig. 3, the sound magnetic with embodiment one
The distinctive points of anti-theft tag essentially consist in：The bias slice 22 is set in the box body 20 and outside the resonant cavity 23, and
It is in layered arrangement with an at least resonance plate 21；Volume in the box body 20 is more than the occupied space of the resonant cavity 23.
Have at least two parts, such as Fig. 3 that is, the space in the box body 20 is divided into, one piece of partition board 25 is equipped in box body 20 with by box
The inner space of body 20 is divided into resonant cavity 23 and accommodating chamber 24, and bias slice 22 is set in accommodating chamber 24, can make so described
The overall structure of box body 20 is more firm and rigidity is more preferable so that and the acoustic magnetic anti-theft label is not easy torsional deflection occur, to
The energy that can more effectively avoid the resistance to mechanical diagonally reversed the influence to the resonant frequency of label, and greatly improve label from destroying
Power.It should be noted that the set-up mode that the bias slice 22 is set in the accommodating chamber 24 can be：Bias slice 22 is located at institute
It states in accommodating chamber 24 and is fixed with the madial wall of box body 20；Or bias slice 22 is simply positioned in accommodating chamber 24 and is not fixed.
Embodiment three：
An embodiment of the present invention provides another acoustic magnetic anti-theft labels, refer to Fig. 4, the sound magnetic with embodiment one
The distinctive points of anti-theft tag essentially consist in：The bias slice 22 is set on the outer surface of the box body 20 (such as set on the box
Bottom outside body 20), and be in layered arrangement with an at least resonance plate 21.In this way when bias slice 22 is damaged due to torsional deflection
It bad when, can be in order to the replacement of bias slice 22.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those skilled in the art in technical scope disclosed by the invention, all answer by the change or replacement that can be readily occurred in
It is included within the scope of the present invention.Therefore, protection scope of the present invention should be with the scope of the claims
It is accurate.
Claims (10)
1. a kind of bias slice for acoustic magnetic anti-theft label, which is characterized in that the bias slice is 10-14wt%'s by content
Manganese, content summation are no more than at least one magnesium-yttrium-transition metal of 7wt% and surplus is made of the material of iron, and the bias slice remains
Magnetic is greater than or equal to 12000Gs, and the width of the bias slice is 1.5-3.8mm；Wherein, the magnesium-yttrium-transition metal include manganese with
Iron.
2. the bias slice according to claim 1 for acoustic magnetic anti-theft label, which is characterized in that the width of the bias slice
For 1.8-3.2mm.
3. the bias slice according to claim 1 for acoustic magnetic anti-theft label, which is characterized in that the length of the bias slice
For 25-38mm.
4. the bias slice according to claim 1 for acoustic magnetic anti-theft label, which is characterized in that the thickness of the bias slice
For 0.065-0.18mm.
5. the bias slice according to claim 1 for acoustic magnetic anti-theft label, which is characterized in that the bias slice is by content
Manganese, the alloy strip that content summation is no more than at least one magnesium-yttrium-transition metal of 7wt% and surplus is iron for 10-14wt%,
After first cold rolling is then passed through the annealing more than 5 minutes and less than 600 DEG C, is cut and be made.
6. a kind of acoustic magnetic anti-theft label, which is characterized in that including box body, an at least resonance plate and any one of such as claim 1 to 5
The bias slice；Resonant cavity is equipped in the box body, an at least resonance plate is set to the resonant cavity with the bias slice
It is interior, and the bias slice and an at least resonance plate are in layered arrangement.
7. a kind of acoustic magnetic anti-theft label, which is characterized in that including box body, an at least resonance plate and any one of such as claim 1 to 5
The bias slice；Resonant cavity is equipped in the box body, an at least resonance plate is set in the resonant cavity；Wherein,
The bias slice is set in the box body and outside the resonant cavity, and is arranged in stratiform with an at least resonance plate
Row；Volume in the box body is more than the occupied space of the resonant cavity；
Or, the bias slice is set on the outer surface of the box body, and it is in layered arrangement with an at least resonance plate.
8. acoustic magnetic anti-theft label according to claim 7, which is characterized in that the acoustic magnetic anti-theft label is by least once
After windup-degree is more than 15 degree of torsion and is restored to straightened condition, the elevation amplitude of resonant frequency is less than or equal to
0.3kHz。
9. acoustic magnetic anti-theft label according to claim 8, which is characterized in that the form of torsion is diagonal torsion.
10. acoustic magnetic anti-theft label according to any one of claims 7 to 9, which is characterized in that the acoustic magnetic anti-theft label pair
Resonant frequency before the torsion of angle is 57.5kHz-58.5kHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810626347.5A CN108564754A (en) | 2018-06-15 | 2018-06-15 | A kind of acoustic magnetic anti-theft label and its bias slice |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810626347.5A CN108564754A (en) | 2018-06-15 | 2018-06-15 | A kind of acoustic magnetic anti-theft label and its bias slice |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108564754A true CN108564754A (en) | 2018-09-21 |
Family
ID=63553551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810626347.5A Pending CN108564754A (en) | 2018-06-15 | 2018-06-15 | A kind of acoustic magnetic anti-theft label and its bias slice |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108564754A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109697817A (en) * | 2019-01-16 | 2019-04-30 | 广州齐达材料科技有限公司 | Sound Magnetic Sensor |
| CN110599725A (en) * | 2019-09-27 | 2019-12-20 | 宁波讯强电子科技有限公司 | Acoustic-magnetic anti-theft label |
| WO2023186160A1 (en) * | 2022-04-02 | 2023-10-05 | Ningbo Signatronic Technologies , Ltd. | Acousto-magnetic (am) anti-theft marker and use thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1885446A (en) * | 2006-06-16 | 2006-12-27 | 李霖 | Soft magnetic material offset piece manufacturing method and anti-theft acoustic magnetic label using the same |
| CN101308595A (en) * | 2008-06-26 | 2008-11-19 | 李霖 | Magnetoacoustic antitheft alarming piece capable of taking nail by magnetic unlocking method and application thereof |
| CN102169615A (en) * | 2011-02-22 | 2011-08-31 | 厦门振泰成科技有限公司 | Method for making electromagnetic label |
| CN102262808A (en) * | 2011-07-15 | 2011-11-30 | 宁波讯强电子科技有限公司 | Acousto-magnetic anti-theft label, and volume label made of same and preparation method thereof |
| CN102298815A (en) * | 2011-05-20 | 2011-12-28 | 宁波讯强电子科技有限公司 | High coercive force offset sheet, manufacturing method thereof and acoustic magnetic anti-theft label manufactured by utilizing same |
| CN202838578U (en) * | 2012-05-17 | 2013-03-27 | 宁波讯强电子科技有限公司 | Narrow-type acoustic magnetic anti-theft label with a plurality of resonance pieces |
| CN103729961A (en) * | 2014-01-22 | 2014-04-16 | 常州市美思科特电子有限公司 | Acoustic-magnetic anti-theft label |
| CN208433081U (en) * | 2018-06-15 | 2019-01-25 | 宁波讯强电子科技有限公司 | A kind of acoustic magnetic anti-theft label and its bias slice |
-
2018
- 2018-06-15 CN CN201810626347.5A patent/CN108564754A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1885446A (en) * | 2006-06-16 | 2006-12-27 | 李霖 | Soft magnetic material offset piece manufacturing method and anti-theft acoustic magnetic label using the same |
| CN101308595A (en) * | 2008-06-26 | 2008-11-19 | 李霖 | Magnetoacoustic antitheft alarming piece capable of taking nail by magnetic unlocking method and application thereof |
| US20090322528A1 (en) * | 2008-06-26 | 2009-12-31 | Lin Li | Acousto-Magnetic Anti-Theft Alarming Unit with Magnetic Detacher |
| CN102169615A (en) * | 2011-02-22 | 2011-08-31 | 厦门振泰成科技有限公司 | Method for making electromagnetic label |
| CN102298815A (en) * | 2011-05-20 | 2011-12-28 | 宁波讯强电子科技有限公司 | High coercive force offset sheet, manufacturing method thereof and acoustic magnetic anti-theft label manufactured by utilizing same |
| CN102262808A (en) * | 2011-07-15 | 2011-11-30 | 宁波讯强电子科技有限公司 | Acousto-magnetic anti-theft label, and volume label made of same and preparation method thereof |
| CN202838578U (en) * | 2012-05-17 | 2013-03-27 | 宁波讯强电子科技有限公司 | Narrow-type acoustic magnetic anti-theft label with a plurality of resonance pieces |
| CN103729961A (en) * | 2014-01-22 | 2014-04-16 | 常州市美思科特电子有限公司 | Acoustic-magnetic anti-theft label |
| CN208433081U (en) * | 2018-06-15 | 2019-01-25 | 宁波讯强电子科技有限公司 | A kind of acoustic magnetic anti-theft label and its bias slice |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109697817A (en) * | 2019-01-16 | 2019-04-30 | 广州齐达材料科技有限公司 | Sound Magnetic Sensor |
| CN110599725A (en) * | 2019-09-27 | 2019-12-20 | 宁波讯强电子科技有限公司 | Acoustic-magnetic anti-theft label |
| WO2023186160A1 (en) * | 2022-04-02 | 2023-10-05 | Ningbo Signatronic Technologies , Ltd. | Acousto-magnetic (am) anti-theft marker and use thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108564754A (en) | A kind of acoustic magnetic anti-theft label and its bias slice | |
| US4553136A (en) | Amorphous antipilferage marker | |
| CN208433081U (en) | A kind of acoustic magnetic anti-theft label and its bias slice | |
| EP1107205B1 (en) | Resonant tag | |
| JPH04220800A (en) | Theft detecting apparatus and flat wire target and manufacture thereof | |
| CN102298815B (en) | High coercive force offset sheet, manufacturing method thereof and acoustic magnetic anti-theft label manufactured by utilizing same | |
| EP0435885B1 (en) | Metallic glass alloys for mechanically resonant target surveillance systems | |
| CN109689925A (en) | The manufacturing method of sputtering target cutting element, the processing method of sputtering target and sputtering target product | |
| EP3735119A1 (en) | Electromagnetic wave absorbing body, article with electromagnetic wave absorbing body, and electromagnetic wave absorbing body manufacturing method | |
| JP4159697B2 (en) | Electronic theft prevention or sensor technology elements | |
| CN112403637A (en) | Tungsten carbide coating knife and preparation process thereof | |
| US5891270A (en) | Heat-treatment of glassy metal alloy for article surveillance system markers | |
| CN210377740U (en) | Acoustic-magnetic anti-theft label | |
| CN108642396A (en) | A kind of bias slice of high stability, its manufacturing method and with its manufactured acoustic magnetic anti-theft label | |
| US8128765B2 (en) | Large grain cavities from pure niobium ingot | |
| CN101882492A (en) | Semi-hard magnetic material as well as preparation method and application thereof | |
| BRPI0621258A2 (en) | cold rolled micro carbon alloy low carbon steel strip | |
| JP2013181246A (en) | Hard pure titanium plate having excellent impact resistance and method for producing the same | |
| JP2005288674A (en) | Cutter for slitter device, and slitter device using the cutter | |
| CN210547013U (en) | Silicon steel acid rolling's bundle roller | |
| CN116665389A (en) | Acoustic-magnetic anti-theft label | |
| Nourbakhsh et al. | Structure and properties of quenched and aged Cu–2Be after deformation to large strains | |
| Elliot | Learning from the history of American macroprudential policy | |
| CN113034829A (en) | Acousto-magnetic anti-theft label and resonance sheet thereof | |
| JP5669409B2 (en) | Metal strip edge processing method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |