FR2389986A1 - - Google Patents

Info

Publication number
FR2389986A1
FR2389986A1 FR7813152A FR7813152A FR2389986A1 FR 2389986 A1 FR2389986 A1 FR 2389986A1 FR 7813152 A FR7813152 A FR 7813152A FR 7813152 A FR7813152 A FR 7813152A FR 2389986 A1 FR2389986 A1 FR 2389986A1
Authority
FR
France
Prior art keywords
outer layer
resulting
inner core
coercivity
magnetic
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.)
Granted
Application number
FR7813152A
Other languages
French (fr)
Other versions
FR2389986B1 (en
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.)
ECHLIN Manufacturing CO
Original Assignee
ECHLIN Manufacturing CO
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 ECHLIN Manufacturing CO filed Critical ECHLIN Manufacturing CO
Publication of FR2389986A1 publication Critical patent/FR2389986A1/fr
Application granted granted Critical
Publication of FR2389986B1 publication Critical patent/FR2389986B1/fr
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F99/00—Subject matter not provided for in other groups of this subclass
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C11/00—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor
    • G11C11/02—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using magnetic elements
    • G11C11/14—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using magnetic elements using thin-film elements
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C11/00—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor
    • G11C11/02—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using magnetic elements
    • G11C11/14—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using magnetic elements using thin-film elements
    • G11C11/155—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using magnetic elements using thin-film elements with cylindrical configuration
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C11/00—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor
    • G11C11/56—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using storage elements with more than two stable states represented by steps, e.g. of voltage, current, phase, frequency
    • G11C11/5607—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using storage elements with more than two stable states represented by steps, e.g. of voltage, current, phase, frequency using magnetic storage elements
    • 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
    • H01F1/0302—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity characterised by unspecified or heterogeneous hardness or specially adapted for magnetic hardness transitions
    • H01F1/0304—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity characterised by unspecified or heterogeneous hardness or specially adapted for magnetic hardness transitions adapted for large Barkhausen jumps or domain wall rotations, e.g. WIEGAND or MATTEUCCI effect
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F13/00—Apparatus or processes for magnetising or demagnetising
    • H01F13/003—Methods and devices for magnetising permanent magnets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0206—Manufacturing of magnetic cores by mechanical means
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/45—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of non-linear magnetic or dielectric devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Hardware Design (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Measuring Magnetic Variables (AREA)
  • Hard Magnetic Materials (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

La présente invention concerne un dispositif magnétique commutable et son procédé de fabrication. Ce dispositif est caractérisé en ce qu'il a une composition chimique pratiquement uniforme comprenant un alliage de vanadium, cobalt et fer en quantités telles qu'il puisse former, à la suite d'un écrouissage cyclique par torsion et d'un traitement subséquent, des portions magnétiques constituant une âme interne et une couche externe, cette ame interne et cette couche externe étant capables de conserver une aimantation résultante après avoir été soumises à un champ magnétique, la coercivité resultante de la couche externe étant notablement supérieure à la coercivité résultante de l'âme interneThe present invention relates to a switchable magnetic device and its manufacturing method. This device is characterized in that it has a substantially uniform chemical composition comprising an alloy of vanadium, cobalt and iron in amounts such that it can form, following cyclic strain hardening by torsion and subsequent treatment, magnetic portions constituting an inner core and an outer layer, this inner core and this outer layer being capable of retaining a resulting magnetization after being subjected to a magnetic field, the resulting coercivity of the outer layer being significantly greater than the resulting coercivity of internal soul

FR7813152A 1977-05-03 1978-05-03 Expired FR2389986B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US79339477A 1977-05-03 1977-05-03

Publications (2)

Publication Number Publication Date
FR2389986A1 true FR2389986A1 (en) 1978-12-01
FR2389986B1 FR2389986B1 (en) 1986-01-03

Family

ID=25159820

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7813152A Expired FR2389986B1 (en) 1977-05-03 1978-05-03

Country Status (18)

Country Link
JP (1) JPS53137641A (en)
AU (1) AU520310B2 (en)
BE (1) BE866645A (en)
BR (1) BR7802730A (en)
CA (1) CA1113577A (en)
CH (1) CH628460A5 (en)
DE (1) DE2819305A1 (en)
FR (1) FR2389986B1 (en)
GB (2) GB1604204A (en)
IL (1) IL54601A (en)
IN (1) IN150051B (en)
IT (1) IT1095711B (en)
MX (1) MX148825A (en)
NL (1) NL188057C (en)
NZ (1) NZ187126A (en)
SE (1) SE429075B (en)
SU (1) SU1041048A3 (en)
ZA (1) ZA782533B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0025596A1 (en) * 1979-09-17 1981-03-25 The Echlin Manufacturing Company Pulse generator using read head with Wiegand wire
EP0184637A2 (en) * 1984-11-09 1986-06-18 Vacuumschmelze GmbH Process for the manufacture of a magnetic switch element which will demagnetize fast also in a slowly changing magnetic field
EP0248159A1 (en) * 1986-06-05 1987-12-09 Siemens Aktiengesellschaft Current limit sensor for protected electrical devices

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS567221A (en) * 1979-06-27 1981-01-24 Matsushita Electric Ind Co Ltd Magnetic recording and reproducing device
DE3152008C1 (en) * 1981-12-31 1983-07-07 Fried. Krupp Gmbh, 4300 Essen Elongated magnetic switching core
DE3203133C2 (en) * 1982-01-30 1991-06-27 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Method of manufacturing a magnetic wire
DE4124776A1 (en) * 1991-07-26 1993-01-28 Schaeffler Waelzlager Kg Mfr. of pulse source with alternating magnetisable and non-magnetisable fields - involves deformation process subjecting source made of austenitic steel having face-centred cubic lattice
JP4524461B2 (en) * 2003-10-24 2010-08-18 ヒロセ電機株式会社 Sensor self-diagnosis method and apparatus using jump element
DE102017002939B3 (en) 2017-03-24 2018-07-19 Sew-Eurodrive Gmbh & Co Kg Device, in particular machine, for producing Wiegand wire from a wire, in particular pulse wire, and method for operating the device
WO2023074693A1 (en) 2021-11-01 2023-05-04 住友電気工業株式会社 Magnetic wire, composite magnetic wire, method for producing magnetic wire, and method for producing composite magnetic wire
DE102021129789A1 (en) 2021-11-16 2023-05-17 Fraba B.V. Arrangement and method for manufacturing a magnetically bistable impulse wire from a wire

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3820090A (en) * 1970-01-26 1974-06-25 Vlinsky M Bistable magnetic device
US3892118A (en) * 1970-01-26 1975-07-01 Velinsky Milton Method of manufacturing bistable magnetic device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3820090A (en) * 1970-01-26 1974-06-25 Vlinsky M Bistable magnetic device
US3892118A (en) * 1970-01-26 1975-07-01 Velinsky Milton Method of manufacturing bistable magnetic device

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
EXBK/64 *
EXBK/68 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0025596A1 (en) * 1979-09-17 1981-03-25 The Echlin Manufacturing Company Pulse generator using read head with Wiegand wire
EP0184637A2 (en) * 1984-11-09 1986-06-18 Vacuumschmelze GmbH Process for the manufacture of a magnetic switch element which will demagnetize fast also in a slowly changing magnetic field
EP0184637A3 (en) * 1984-11-09 1988-03-23 Vacuumschmelze Gmbh Process for the manufacture of a magnetic switch element which will demagnetize fast also in a slowly changing magnetic field
EP0248159A1 (en) * 1986-06-05 1987-12-09 Siemens Aktiengesellschaft Current limit sensor for protected electrical devices

Also Published As

Publication number Publication date
DE2819305C2 (en) 1989-11-09
AU520310B2 (en) 1982-01-28
MX148825A (en) 1983-06-24
BR7802730A (en) 1978-12-19
AU3560278A (en) 1979-11-08
SE7805023L (en) 1978-11-04
SE429075B (en) 1983-08-08
JPS6128196B2 (en) 1986-06-28
NZ187126A (en) 1982-03-30
CA1113577A (en) 1981-12-01
NL188057C (en) 1992-03-16
NL7804760A (en) 1978-11-07
NL188057B (en) 1991-10-16
IL54601A (en) 1980-07-31
BE866645A (en) 1978-09-01
FR2389986B1 (en) 1986-01-03
SU1041048A3 (en) 1983-09-07
GB1604204A (en) 1981-12-02
IL54601A0 (en) 1978-07-31
DE2819305A1 (en) 1978-11-23
JPS53137641A (en) 1978-12-01
IT1095711B (en) 1985-08-17
GB1604205A (en) 1981-12-02
ZA782533B (en) 1979-04-25
IT7822914A0 (en) 1978-05-02
IN150051B (en) 1982-07-10
CH628460A5 (en) 1982-02-26

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Legal Events

Date Code Title Description
ST Notification of lapse