PL330101A1 - Method of making magnetic cores of magnetically soft nanocrystalline alloy and magnetic core obtained thereby especially that for electromagnetic actuators of differential switches of ac class - Google Patents

Method of making magnetic cores of magnetically soft nanocrystalline alloy and magnetic core obtained thereby especially that for electromagnetic actuators of differential switches of ac class

Info

Publication number
PL330101A1
PL330101A1 PL98330101A PL33010198A PL330101A1 PL 330101 A1 PL330101 A1 PL 330101A1 PL 98330101 A PL98330101 A PL 98330101A PL 33010198 A PL33010198 A PL 33010198A PL 330101 A1 PL330101 A1 PL 330101A1
Authority
PL
Poland
Prior art keywords
magnetic core
magnetic
class
degrees
alloy
Prior art date
Application number
PL98330101A
Other versions
PL186806B1 (en
Inventor
Georges Couderchon
Philippe Verin
Christian Caquard
Original Assignee
Mecagis
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 Mecagis filed Critical Mecagis
Publication of PL330101A1 publication Critical patent/PL330101A1/en
Publication of PL186806B1 publication Critical patent/PL186806B1/en

Links

Classifications

    • 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
    • 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
    • H01F1/15333—Amorphous metallic alloys, e.g. glassy metals containing nanocrystallites, e.g. obtained by annealing
    • 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
    • H01F41/0213—Manufacturing of magnetic circuits made from strip(s) or ribbon(s)
    • H01F41/0226—Manufacturing of magnetic circuits made from strip(s) or ribbon(s) from amorphous ribbons
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/14—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection
    • H01H83/144—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection with differential transformer

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Dispersion Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Soft Magnetic Materials (AREA)

Abstract

Production of a nanocrystalline soft magnetic iron-silicon-boron alloy magnetic core involves crystallization heat treatment of the amorphous alloy at 250-450 degrees C in a transverse magnetic field of rectangular waveform. Production of a magnetic core of nanocrystalline soft magnetic alloy, of composition more than 60 at.% Fe, 10-20 at.% Si, 0.1-2 at.% Cu, 5-20 at.% B and 0.1-10 at.% of one or more of Ti, Nb, Zr, Hf, V, Ta, Cr, Mo, W and Mn, the sum of Si + B being less than 30 at.%, involves crystallization heat treatment of the amorphous alloy at 250-450 degrees C in a transverse magnetic field of rectangular waveform. An Independent claim is also included for a magnetic core produced by the above process and exhibiting, for a 50 Hz alternating excitation magnetic field of 10 mA/cm maximum amplitude at 25 degrees C, an impedance magnetic permeability ( mu z) of greater than 200000, a remnant induction/saturation induction (Br/Bm) ratio of less than 0.2 and DELTA Bstat and DELTA Bdyn values of greater than 0.2 T.
PL98330101A 1997-12-04 1998-12-04 Method of making magnetic cores of magnetically soft nanocrystalline alloy and magnetic core obtained thereby especially that for electromagnetic actuators of differential switches of ac class PL186806B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9715273A FR2772181B1 (en) 1997-12-04 1997-12-04 METHOD FOR MANUFACTURING A NANOCRYSTALLINE SOFT MAGNETIC ALLOY MAGNETIC CORE FOR USE IN A CLASS A DIFFERENTIAL CIRCUIT BREAKER AND MAGNETIC CORE OBTAINED

Publications (2)

Publication Number Publication Date
PL330101A1 true PL330101A1 (en) 1999-06-07
PL186806B1 PL186806B1 (en) 2004-02-27

Family

ID=9514143

Family Applications (1)

Application Number Title Priority Date Filing Date
PL98330101A PL186806B1 (en) 1997-12-04 1998-12-04 Method of making magnetic cores of magnetically soft nanocrystalline alloy and magnetic core obtained thereby especially that for electromagnetic actuators of differential switches of ac class

Country Status (5)

Country Link
EP (1) EP0921541B1 (en)
AT (1) ATE266245T1 (en)
DE (1) DE69823621T2 (en)
FR (1) FR2772181B1 (en)
PL (1) PL186806B1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19948897A1 (en) * 1999-10-11 2001-04-19 Vacuumschmelze Gmbh Interface modules for local data networks
DE502006001096D1 (en) * 2005-02-25 2008-08-28 Magnetec Gmbh Residual current circuit breaker and magnetic core for a residual current device
US8699190B2 (en) 2010-11-23 2014-04-15 Vacuumschmelze Gmbh & Co. Kg Soft magnetic metal strip for electromechanical components
CN107419200B (en) * 2017-06-30 2019-11-22 江苏理工学院 A kind of manganese-containing soft magnetic iron-based nanocrystalline-amorphous alloy and preparation method thereof

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4881989A (en) * 1986-12-15 1989-11-21 Hitachi Metals, Ltd. Fe-base soft magnetic alloy and method of producing same
DE3884491T2 (en) * 1987-07-14 1994-02-17 Hitachi Metals Ltd Magnetic core and manufacturing method.
DE3911480A1 (en) * 1989-04-08 1990-10-11 Vacuumschmelze Gmbh USE OF A FINE CRYSTALLINE IRON BASE ALLOY AS A MAGNETIC MATERIAL FOR FAULT CURRENT CIRCUIT BREAKERS
JPH0346205A (en) * 1989-07-01 1991-02-27 Jionkoo Kantee Guufun Yousenkonsuu Method of improving magnetizing properties by ac or pulse currents
DE4210748C1 (en) * 1992-04-01 1993-12-16 Vacuumschmelze Gmbh Current transformers for pulse current sensitive residual current circuit breakers, residual current circuit breakers with such a current transformer, and method for heat treatment of the iron alloy strip for its magnetic core
FR2733376B1 (en) * 1995-04-18 1997-06-06 Schneider Electric Sa CURRENT TRANSFORMER ESPECIALLY FOR FAULT CURRENT TRIGGER SENSITIVE TO PULSED CURRENTS AND TRIGGER EQUIPPED WITH SUCH A TRANSFORMER

Also Published As

Publication number Publication date
EP0921541A1 (en) 1999-06-09
FR2772181A1 (en) 1999-06-11
ATE266245T1 (en) 2004-05-15
DE69823621D1 (en) 2004-06-09
FR2772181B1 (en) 2000-01-14
PL186806B1 (en) 2004-02-27
DE69823621T2 (en) 2005-05-19
EP0921541B1 (en) 2004-05-06

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Legal Events

Date Code Title Description
LAPS Decisions on the lapse of the protection rights

Effective date: 20071204