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EP1047032B1 - Bandelettes de marquage magnétiques et leurs procédé de fabrication - Google Patents

Bandelettes de marquage magnétiques et leurs procédé de fabrication Download PDF

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Publication number
EP1047032B1
EP1047032B1 EP00108525A EP00108525A EP1047032B1 EP 1047032 B1 EP1047032 B1 EP 1047032B1 EP 00108525 A EP00108525 A EP 00108525A EP 00108525 A EP00108525 A EP 00108525A EP 1047032 B1 EP1047032 B1 EP 1047032B1
Authority
EP
European Patent Office
Prior art keywords
tape
amorphous
ferromagnetic
signal
strip
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.)
Expired - Lifetime
Application number
EP00108525A
Other languages
German (de)
English (en)
Other versions
EP1047032A2 (fr
EP1047032A3 (fr
Inventor
Kurt Dr. Emmerich
Giselher Dr. Herzer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vacuumschmelze GmbH and Co KG
Original Assignee
Vacuumschmelze GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Vacuumschmelze GmbH and Co KG filed Critical Vacuumschmelze GmbH and Co KG
Publication of EP1047032A2 publication Critical patent/EP1047032A2/fr
Publication of EP1047032A3 publication Critical patent/EP1047032A3/fr
Application granted granted Critical
Publication of EP1047032B1 publication Critical patent/EP1047032B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • G08B13/2428—Tag details
    • G08B13/2437—Tag layered structure, processes for making layered 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
    • G08B13/2437—Tag layered structure, processes for making layered tags
    • G08B13/244—Tag manufacturing, e.g. continuous manufacturing processes
    • 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
    • H01F1/15316—Amorphous metallic alloys, e.g. glassy metals based on Co
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1052—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
    • Y10T156/1084—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing of continuous or running length bonded web
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1089—Methods of surface bonding and/or assembly therefor of discrete laminae to single face of additional lamina
    • Y10T156/1092—All laminae planar and face to face
    • Y10T156/1097—Lamina is running length web

Definitions

  • the invention relates to a magnetic marking strip for Generation of a signal within an interrogation zone in which a periodically changing magnetic field with a predetermined one Basic frequency is present, which is from the marking strip generated signal recorded by a scanner and if a harmonic is found in it higher order of the fundamental frequency produces an advertisement which consists of a signal strip made of ferromagnetic Material with a low coercive force exists the ferromagnetic material is applied, its coercive field strength is significantly larger than that of the material of the Signal strip.
  • Such magnetic marker strips are for example from DE 30 26 482 A1 and from EP 0 121 649 B1 known.
  • the signal strips described there are typical made of crystalline, highly permeable nickel-iron alloys high nickel content.
  • EP 0 121 649 B1 proposes alloy selections with the lowest possible saturation magnetostriction ⁇ S , which makes the signal independent of the internal and external voltage states of the signal strip.
  • EP 0 121 649 B1 states that that the alloy selections taught there already in State of manufacture, d. H. so immediately after pouring in Rapid solidification technology, have a B-H loop that is rectangular.
  • B-H loop the form of the magnetic hysteresis (B-H loop) of the ferromagnetic material of great importance. magnetized to insert a metallic object into a magnetic field remains after switching off the magnetic Field a certain magnetization. The lag magnetization of ferromagnetic materials The field strength is a measurable quantity that can be measured with a Curve display can be recorded, generally as a B-H loop referred to as.
  • Magnetic marker strips currently available use signal strips made of amorphous, ferromagnetic alloys in typical widths between 0.7 mm and 2.5 mm in lengths between 30 mm and 90 mm. To deactivate this signal strip applied ferromagnetic material, the Coercive field strength is significantly greater than that of the material of the signal strip. These have higher coercive alloys coercive field strengths between 15 A / cm and 100 A / cm on. These higher coercive stripes tend to be between 3 and 15 mm long and are for reasons of attachability 2 to 4 mm wider than the signal strips. These deactivation elements are used in the manufacturing process cut to length from a feed roll. You will be in usually then attached over adhesive films that also the continuous signal strip of the magnetic marking strip fix.
  • the deactivation elements as single, narrow Strip fixed on a broadband of the signal strip and the finished magnetic marker is then cut to length.
  • the advantage of this method is that it reduces costs Use of broadband for the signal strip using a single cutting process per magnetic Marking strips included instead of the multiple process steps Attachment in the conventional, described above Production of magnetic marker strips with signal strips made of amorphous, ferromagnetic alloys.
  • a broadband was produced from an amorphous, ferromagnetic alloy with the composition Co 58 Fe 5.5 Ni 13 Si 14.5 B 9 using rapid solidification technology in a bandwidth of 54 mm and an average thickness of 25 ⁇ m.
  • the saturation magnetostriction ⁇ S was -0.5 ppm.
  • the cast strip saturation induction B S was 0.7 Tesla.
  • the tape produced also had a rectangular bra loop, with a remanence ratio (synonymous with the "rectangularity”) of approximately 85%.
  • a signal strip was then made from this cast broadband with a width of 2 mm transverse to the longitudinal axis of the cast Broadband cut to length and its harmonics measured.
  • the signal strip with an alternating magnetic field with an amplitude of 1 A / cm and a frequency of 1 kHz stimulated.
  • the signal strip was parallel to the magnetic field oriented towards the earth, which is a DC field magnetization of about 0.2 A / cm.
  • the through the alternating field caused induction change was in an air-compensated, the pick-up coil surrounding the middle of the signal strip 100 turns measured based on the voltage induced there.
  • the induced voltage was then measured using a spectral analyzer broken down into their frequency components, d. H. it was carried out a harmonic analysis.
  • Embodiments of the invention Harmonious answer Composition (at%) J s (T)
  • After longitudinal field treatment after cross- field treatment Co 58 Fe 5.5 Ni 13 Si 14.5 B 9 0.70 ⁇ 1 NO NO YES Co 52 Fe 5.5 Ni 18 Si 15.5 B 9 00:59 ⁇ 1 NO NO YES Co 43.3 Fe 6.7 Ni 28 Si 13 B 9 00:58 ⁇ 1 NO NO YES Co 67.3 Fe 3.7 Mo 1.5 Si 16.5 B 11 00:55 ⁇ 1 very low NO YES Co 71.8 Fe 1 Mn 4 Mo 1 Si 13.2 B 9 0.82 ⁇ 1 NO NO YES Co 58.5 Fe 5.5 Mn 1 Ni 15 Si 4 B 16.5 0.90 ⁇ 1 NO NO YES Co 74.5 Fe 1.5 Mn 4 Si 11 B 9 1:00 ⁇ 1 NO NO YES Co 31 Fe 6.5 Ni 40.5 Si 13 B 9 00:41 ⁇ 1 very low NO YES
  • the object of the present invention is therefore amorphous, Provide ferromagnetic alloys, which over the in the method for magnetic marking strips taught in DE 30 26 482 A1 are processable.
  • a magnetic marking strip of the type mentioned at the outset which is characterized in that the signal strip is cut to length from a strip of an amorphous, ductile, almost magnetostriction-free alloy transverse to the longitudinal axis of the strip, the flat bra parallel to its longitudinal axis Loop has.
  • a flat BH loop is understood to be a hysteresis loop with a ratio of remanence to saturation magnetization B S of ⁇ 20% or B r / B s ⁇ 10%.
  • the throughput speed in the throughflow heat treatment is preferred chosen so that the amorphous, ferromagnetic Band for a heat treatment time 2s ⁇ t ⁇ 60s on one Temperature 280 ° C ⁇ T ⁇ 380 ° C is heated.
  • the alloy and the magnetic field heat treatment should preferably be matched to one another.
  • the essential tuning parameter is the Curie temperature T C of the alloy. It has been shown that the magnetic field treatments only lead to signal strips with good harmonic signals if the temperatures T selected there are below the Curie temperature T C or do not significantly exceed them.
  • Alloys with a relatively low metalloid content generally have such Curie temperatures. This can also improve the ductility of the alloys after the heat treatment. On the other hand, however, the lowering of the metalloid content again results in an increase in the saturation induction B S , which means a weakening of the harmonic signals for a given geometry of the signal strips. It was thus found that signal strips with a length of less than 10 cm improved the harmonic signals when the saturation induction B S was reduced. Saturation induction B S ⁇ 0.7 Tesla has been shown to be particularly suitable.
  • the preferred alloys have been found to be those whose composition is selected such that the saturation induction B S 0 0.7 Tesla and at the same time the Curie temperature T C 200 200 ° C. These conflicting requirements can be achieved, inter alia, by having a nickel content of at least 10 atom% in the alloys.
  • EP 0 121 649 B1 shows that with an increased nickel content the iron content of the alloy must be> 10 atom%, so that a harmonic signal is not caused by mechanical stress, z. B. by bending or twisting the signal strip, can be affected.
  • the lower limits for the heat treatment from the above result in explanations and heat treatment temperatures. From the Requirement that the signal strip respond to the heat treatment, d. H. a high proportion of the suggestion described has harmonics. The corresponding Upper limits result from the requirement that the signal strip still sufficiently ductile after the heat treatment have to be.
  • Table II and Table III summarize several typical test results for the limitation of suitable heat treatments. A distinction is made between heat treatment on the tape winding and heat treatment in the run. Examples of cross-field heat treatments on the coil. With the brittle tape, it was not possible to measure the harmonic response, since no tape strip could be cut off due to the brittleness.
  • alloy heat treatment ductility harmonious answer Co 67.3 Fe 3.7 Mo 1.5 Si 16.5 B 11 10s 230 ° C without train ductile bad 10s 230 ° C with train ductile bad 10s 3 50 ° C without train ductile bad 10s 350 ° C with train ductile GOOD 10s 350 ° C with train ductile GOOD without magnetic field 60s 420 ° C BRITTLE Co 43.3 Fe 6.7 Ni 28 Si 13 B 9 10s 230 ° C without train ductile bad 10s 230 ° C with train ductile bad 10s 350 ° C without train ductile moderate 10s 350 ° C with train ductile GOOD 10s 350 ° C with train ductile GOOD without magnetic field 60s 420 ° C BRITTLE Co 74.5 Fe 1.5 Mn 4 Si 11
  • a band of an amorphous, ferromagnetic alloy of the composition Co 58 Fe 5.5 Ni 13 Si 14.5 B 9 was cast using rapid solidification in a bandwidth of 54 mm and an average thickness of 25 ⁇ m.
  • the cast tape was subjected to a heat treatment.
  • a constant magnetic field was again applied during the heat treatment, but this time it was oriented parallel to the winding axis of the tape roll, that is to say transversely to the casting direction of the tape.
  • the strength of the magnetic field was again chosen so that the tape was ferromagnetically saturated in the direction of the applied magnetic field, for which a higher field strength of 2000 A / cm was necessary due to the demagnetization factor parallel to the winding axis of the tape roll.
  • the strip was completely ductile after said heat treatment, d. H. it was easy to process mechanically, d. H. So climbing, punching or similar processes without too break.
  • FIG. 5 shows a preferred embodiment for the manufacture of the display elements according to the invention.
  • a manufacturing device for generating of individual magnetic marking elements is suitable, the then in a separate process on or in the packaging the goods are attached.
  • the deactivation elements attached to a carrier film the by heating the connection with the deactivation elements reached.
  • the carrier film is removed from a roll 3 the heating zone 1 and there to a temperature of approx. Heated to 150 ° C.
  • This carrier film is between the pressure rollers 4 associated with 3 a material for deactivation.
  • Each element for deactivation consists of a magnetic one semi-hard alloy.
  • the band thickness of these deactivation elements is 51 ⁇ m and the band width is 8 mm.
  • the distance between the deactivation elements applied to the carrier film is set to 4 mm.
  • This composite is then heated again in the heating zone 2 to the temperature of 150 ° C., in order then to be connected between the pressure rollers 5 with a signal strip optimally heat-treated for use in this application.
  • the magnetic marker was first magnetized State of the deactivation elements with a magnetic Alternating field with an amplitude of 1A / cm and a frequency excited by 1 kHz.
  • the display element was parallel to Earth's magnetic field is oriented, which is a direct field magnetization of about 0.2 A / cm.
  • the change in induction caused by the alternating field was in an air-compensated area surrounding the center of the display element Pick-up coil with 100 turns based on the induced there Voltage detected.
  • the induced voltage was here using a spectral analyzer into their frequency components disassembled, d. H. a harmonic analysis was carried out.
  • the one for the transversely deflected signal strips was one very high proportion of harmonics, as found in harmonic security systems to recognize the magnetic marking element used to get.
  • the deactivation elements were now magnetized by applying a magnetic field of 250A / cm and the display element thereafter of the same magnetic harmonic Subjected to analysis.
  • the magnetic marking elements were accordingly by magnetizing the deactivation elements unrecognizable for a harmonious goods security system made.
  • the magnetic manufactured according to this embodiment The marking element thus perfectly fulfills the requirements preferred to one in the source tagging of goods used deactivatable magnetic marker.
  • a double-sided adhesive is used in the first step Carrier film from a decoiler 2 on a Transport rollers 1 running endless conveyor belt with the pressure rollers 3 attached.
  • the magnetic marking element Before the magnetic marking element from the cutting device 6 is separated from the supplied components the magnetic marking element fixed by a gripper arm, in that in the functional surface of the gripper arm, for example Permanent magnet is attached. This permanent magnet then pulls that magnetic marking element. After the magnetic Mar-. Kierelement is now completely separated, it is from the The gripper arm is pressed onto the packaging material passing by.
  • the adhesive strength of the carrier film is now significantly stronger than the magnetic fixation of the magnetic marking element the gripper arm so that the magnetic marker on the Packaging material is fixed.
  • the packaging material is applied after the magnetic Marking element coated with a laminate 10 on both sides and in subsequent steps, which are not shown here, processed into a goods packaging.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Automation & Control Theory (AREA)
  • Computer Security & Cryptography (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Burglar Alarm Systems (AREA)

Claims (12)

  1. Bandelette de marquage magnétique pour générer un signal à l'intérieur d'une zone d'interrogation qui présente un champ magnétique, changeant périodiquement, avec une fréquence de base prédéfinie, le signal généré par la bandelette de marquage étant reçu par un scanneur et une indication étant générée par la constatation d'une harmonique qui lui est intrinsèque d'un ordre de fréquence de base supérieur, cette indication comportant une bandelette de signal composée en matériau ferromagnétique avec une faible coercitivité sur laquelle est déposé le matériau ferromagnétique dont la coercitivité est essentiellement supérieure à celle du matériau de la bandelette de signal, la bandelette de signal étant configurée relativement longue par rapport à sa largeur et rayonne, dans un premier état non magnétisé suite au champ magnétique, des signaux contenus dans la zone d'interrogation et ne rayonne, dans un second état dans ce champ magnétique, aucun signal contenu dans l'harmonique, et dont le matériau ferromagnétique présentant la coercitivité la plus grande est configuré sous la forme de plusieurs éléments de désactivation espacés l'un de l'autre sur la bandelette de signal, la largeur des éléments de désactivation étant essentiellement identique à la largeur de la bandelette de signal et les éléments de désactivation dans un premier état non magnétisé entraínant les bandelettes de signal dans le premier état et, dans un second état magnétisé, entraínant les bandelettes de signal dans le second état,
    caractérisé en ce que
    la bandelette de signal est mise à longueur par une bande en alliage amorphe, ductile, presque sans magnétostriction transversalement à l'axe longitudinal de la bande, et
    la bande présente parallèlement à son axe longitudinal une boucle B-H plane.
  2. Bandelette de marquage selon la revendication 1,
    caractérisée en ce que
    l'alliage présente une composition qui est composée essentiellement par la formule : CoaFebNicXdBeSif dans laquelle X est au moins un des éléments Cr, Mo, Nb, Ta, a à f sont indiqués en % d'atomes et les conditions suivantes sont données : 25≤a≤80   0≤d≤5 2≤b≤10   8≤e≤20 0≤c≤45   0≤f≤18,    où 15 ≤ (e+f) ≤ 30 et a + b + c + d + e + f = 100 et
    le cas échéant, jusqu'à 2 % d'atomes du B et Si présents sont remplacés ensemble par au moins un des éléments C, P, Al, Ge et
    le cas échéant, jusqu'à 5 % d'atomes du Fe présent est remplacé par Mn.
  3. Bandelette de marquage selon la revendication 2,
    caractérisée par
    les conditions suivantes : 19 ≤ (e+f) ≤ 23 et 20≤ c ≤ 45.
  4. Bandelette de marquage selon la revendication 2,
    caractérisée par
    les conditions suivantes : 23 ≤ (e+f) ≤ 26 et 10 ≤ c ≤ 20.
  5. Bandelette de marquage selon la revendication 2,
    caractérisée par
    les conditions suivantes : 26 ≤ (e+f) ≤ 30 et c ≤ 10.
  6. Bandelette de marquage selon l'une quelconque des revendications 1 à 5,
    caractérisée en ce que
    la bandelette de signal présente une aimantation à saturation BS ≤ 0,7 T.
  7. Bandelette de marquage selon l'une quelconque des revendications 1 à 6,
    caractérisée en ce que
    l'alliage présente une magnétostriction à saturation |λS| ≤ 1 ppm.
  8. Procédé de fabrication d'une bandelette de marquage selon l'une quelconque des revendications 1 à 7,
    caractérisé par
    les étapes suivantes :
    on coule une bande ferromagnétique amorphe à partir d'une coulée au moyen d'un durcissement rapide ;
    la bande ferromagnétique amorphe est soumise par défilement à un traitement thermique ;
    on dépose sur la bande ferromagnétique amorphe, parallèlement à son axe longitudinal, au moins deux bandelettes relativement minces d'un matériau ferromagnétique ayant une coercitivité nettement supérieure ;
    on lie les bandelettes avec la bande ;
    on met à longueur la bande ferromagnétique amorphe et les bandelettes reliées à celle-ci transversalement à l'axe longitudinal de la bande ferromagnétique amorphe.
  9. Procédé selon la revendication 8,
    caractérisé en ce que
    la bande ferromagnétique amorphe est soumise sous contrainte de tension à un traitement thermique par défilement.
  10. Procédé selon la revendication 8,
    caractérisé en ce que
    la bande ferromagnétique amorphe est soumise à un traitement thermique dans un champ magnétique transversalement à l'axe longitudinal de la bande ferromagnétique amorphe.
  11. Procédé de fabrication d'une bandelette de marquage selon l'une quelconque des revendications 1 à 7,
    caractérisé par
    les étapes suivantes :
    on coule une bande ferromagnétique amorphe à partir d'une coulée au moyen d'un durcissement rapide ;
    la bande ferromagnétique amorphe est enroulée en une bobine en ruban ;
    la bobine en ruban est soumise à un traitement thermique dans champ magnétique parallèlement à l'axe d'enroulement de la bobine en ruban ;
    avant que la bobine en ruban soit soumise au traitement thermique, on dépose au moins deux bandelettes relativement minces d'un matériau ferromagnétique ayant une coercitivité nettement supérieure sur la bande ferromagnétique amorphe parallèlement à son axe longitudinal ;
    les bandelettes sont reliées à la bande ;
    la bande ferromagnétique amorphe et les bandelettes reliées avec celle-ci sont mises à longueur transversalement à l'axe longitudinal de la bande ferromagnétique amorphe.
  12. Procédé selon l'une quelconque des revendications 8 à 11,
    caractérisé en ce que
    la bande ferromagnétique amorphe et les bandelettes sont reliées entre elles par collage.
EP00108525A 1999-04-23 2000-04-19 Bandelettes de marquage magnétiques et leurs procédé de fabrication Expired - Lifetime EP1047032B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19918589A DE19918589A1 (de) 1999-04-23 1999-04-23 Magnetischer Markierstreifen und Verfahren zur Herstellung eines magnetischen Markierstreifens
DE19918589 1999-04-23

Publications (3)

Publication Number Publication Date
EP1047032A2 EP1047032A2 (fr) 2000-10-25
EP1047032A3 EP1047032A3 (fr) 2001-03-21
EP1047032B1 true EP1047032B1 (fr) 2004-01-02

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Application Number Title Priority Date Filing Date
EP00108525A Expired - Lifetime EP1047032B1 (fr) 1999-04-23 2000-04-19 Bandelettes de marquage magnétiques et leurs procédé de fabrication

Country Status (3)

Country Link
US (1) US6313746B1 (fr)
EP (1) EP1047032B1 (fr)
DE (2) DE19918589A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4128721B2 (ja) * 2000-03-17 2008-07-30 株式会社東芝 情報記録物品
IT1319295B1 (it) * 2000-04-28 2003-10-10 Giancarlo Zanetti Banda magnetica con strato adesivo.
DE60123756T2 (de) * 2000-07-17 2007-08-23 NHK Spring Co., Ltd., Yokohama Magnetischer markierer und seine herstellung
JP4238221B2 (ja) * 2003-01-23 2009-03-18 バクームシュメルツェ ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニ コマンディートゲゼルシャフト アンテナコア
US20050237197A1 (en) * 2004-04-23 2005-10-27 Liebermann Howard H Detection of articles having substantially rectangular cross-sections
EP1791758A4 (fr) * 2004-09-01 2008-11-05 Mxt Inc Applicateur pour marqueur magnetique et procede associe
DE102009043462A1 (de) 2009-09-30 2011-03-31 Vacuumschmelze Gmbh & Co. Kg Magnetischer Streifen, Sensor aufweisend einen magnetischen Streifen und Verfahren zur Herstellung eines magnetischen Streifens
CN109887739B (zh) * 2019-03-29 2021-03-02 中变集团上海变压器有限公司 一种变压器铁芯制造方法

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3586593A (en) * 1965-10-22 1971-06-22 Ernest A Dahl Jr Magnetically actuatable business machine card
US3870867A (en) * 1970-11-24 1975-03-11 Monarch Marking Systems Inc Web of record members
US3746606A (en) * 1971-06-17 1973-07-17 Ncr Off-line process for laminating magnetic tape to tab stock
US3820104A (en) * 1972-12-15 1974-06-25 Stop Loss Inc Method and system for detecting an object within a magnetic field interrogation zone
US4222517A (en) * 1978-09-18 1980-09-16 Samuel Cornelious Evans Magnetic marker
US4484184A (en) * 1979-04-23 1984-11-20 Allied Corporation Amorphous antipilferage marker
US4298862A (en) 1979-04-23 1981-11-03 Allied Chemical Corporation Amorphous antipilferage marker
DE3026482A1 (de) * 1980-07-12 1982-02-04 Evans, Samuel Cornelious, Smyrna, Ga. Magnetischer markierstreifen
US4510490A (en) * 1982-04-29 1985-04-09 Allied Corporation Coded surveillance system having magnetomechanical marker
US4553136A (en) * 1983-02-04 1985-11-12 Allied Corporation Amorphous antipilferage marker
DE3717043A1 (de) 1987-05-21 1988-12-15 Vacuumschmelze Gmbh Amorphe legierung fuer streifenfoermige sensorelemente
US5015993A (en) * 1989-06-29 1991-05-14 Pitney Bowes Inc. Ferromagnetic alloys with high nickel content and high permeability
US5580664A (en) * 1992-12-23 1996-12-03 Minnesota Mining And Manufacturing Company Dual status thin-film eas marker having multiple magnetic layers
US5565847A (en) * 1994-11-23 1996-10-15 International Business Machines Corporation Magnetic tag using acoustic or magnetic interrogation
US6187112B1 (en) * 1995-04-13 2001-02-13 Ryusuke Hasegawa Metallic glass alloys for mechanically resonant marker surveillance systems
DE19533362A1 (de) * 1995-09-09 1997-03-13 Vacuumschmelze Gmbh Längsgestreckter Körper als Sicherungsetikett für elektromagnetische Diebstahlsicherungssysteme

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DE19918589A1 (de) 2000-10-26
DE50004900D1 (de) 2004-02-05
US6313746B1 (en) 2001-11-06
EP1047032A2 (fr) 2000-10-25
EP1047032A3 (fr) 2001-03-21

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