FR2772181B1 - METHOD FOR MANUFACTURING A NANOCRYSTALLINE SOFT MAGNETIC ALLOY MAGNETIC CORE FOR USE IN A CLASS A DIFFERENTIAL CIRCUIT BREAKER AND MAGNETIC CORE OBTAINED - Google Patents
METHOD FOR MANUFACTURING A NANOCRYSTALLINE SOFT MAGNETIC ALLOY MAGNETIC CORE FOR USE IN A CLASS A DIFFERENTIAL CIRCUIT BREAKER AND MAGNETIC CORE OBTAINEDInfo
- Publication number
- FR2772181B1 FR2772181B1 FR9715273A FR9715273A FR2772181B1 FR 2772181 B1 FR2772181 B1 FR 2772181B1 FR 9715273 A FR9715273 A FR 9715273A FR 9715273 A FR9715273 A FR 9715273A FR 2772181 B1 FR2772181 B1 FR 2772181B1
- Authority
- FR
- France
- Prior art keywords
- magnetic core
- magnetic
- nanocrystalline soft
- alloy
- degrees
- 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 - Fee Related
Links
- 238000004519 manufacturing process Methods 0.000 title abstract 3
- 229910001004 magnetic alloy Inorganic materials 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- 229910000808 amorphous metal alloy Inorganic materials 0.000 abstract 2
- 238000002425 crystallisation Methods 0.000 abstract 2
- 230000008025 crystallization Effects 0.000 abstract 2
- 238000010438 heat treatment Methods 0.000 abstract 2
- 230000006698 induction Effects 0.000 abstract 2
- 229910000521 B alloy Inorganic materials 0.000 abstract 1
- NFCWKPUNMWPHLM-UHFFFAOYSA-N [Si].[B].[Fe] Chemical compound [Si].[B].[Fe] NFCWKPUNMWPHLM-UHFFFAOYSA-N 0.000 abstract 1
- 229910052796 boron Inorganic materials 0.000 abstract 1
- 229910052804 chromium Inorganic materials 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 230000005284 excitation Effects 0.000 abstract 1
- 230000001747 exhibiting effect Effects 0.000 abstract 1
- 229910052735 hafnium Inorganic materials 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 229910052748 manganese Inorganic materials 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 229910052750 molybdenum Inorganic materials 0.000 abstract 1
- 229910052758 niobium Inorganic materials 0.000 abstract 1
- 230000035699 permeability Effects 0.000 abstract 1
- 229910052715 tantalum Inorganic materials 0.000 abstract 1
- 229910052719 titanium Inorganic materials 0.000 abstract 1
- 229910052721 tungsten Inorganic materials 0.000 abstract 1
- 229910052720 vanadium Inorganic materials 0.000 abstract 1
- 229910052726 zirconium Inorganic materials 0.000 abstract 1
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.
Priority Applications (5)
| 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 |
| DE69823621T DE69823621T2 (en) | 1997-12-04 | 1998-11-13 | Manufacturing process for a nanocrystalline soft magnetic core for use in a differential circuit breaker |
| AT98402804T ATE266245T1 (en) | 1997-12-04 | 1998-11-13 | PRODUCTION PROCESS FOR A NANOCRYSTALLINE SOFT MAGNETIC CORE FOR USE IN A DIFFERENTIAL PROTECTION SWITCH |
| EP98402804A EP0921541B1 (en) | 1997-12-04 | 1998-11-13 | Fabrication process of a soft nanocrystalline magnetic core for use in a differential circuit breaker |
| 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 |
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 |
|---|---|
| FR2772181A1 FR2772181A1 (en) | 1999-06-11 |
| FR2772181B1 true FR2772181B1 (en) | 2000-01-14 |
Family
ID=9514143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR9715273A Expired - Fee Related 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 |
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)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19948897A1 (en) * | 1999-10-11 | 2001-04-19 | Vacuumschmelze Gmbh | Interface modules for local data networks |
| ES2308610T3 (en) * | 2005-02-25 | 2008-12-01 | Magnetec Gmbh | RESIDUAL DIFFERENTIAL SWITCH AND MAGNETIC NUCLEO FOR A RESIDUAL DIFFERENTIAL SWITCH. |
| 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 soft magnetic iron-based nanocrystalline and amorphous alloy and preparation method thereof containing manganese |
Family Cites Families (6)
| 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 |
-
1997
- 1997-12-04 FR FR9715273A patent/FR2772181B1/en not_active Expired - Fee Related
-
1998
- 1998-11-13 DE DE69823621T patent/DE69823621T2/en not_active Expired - Lifetime
- 1998-11-13 AT AT98402804T patent/ATE266245T1/en not_active IP Right Cessation
- 1998-11-13 EP EP98402804A patent/EP0921541B1/en not_active Expired - Lifetime
- 1998-12-04 PL PL98330101A patent/PL186806B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| PL330101A1 (en) | 1999-06-07 |
| PL186806B1 (en) | 2004-02-27 |
| DE69823621T2 (en) | 2005-05-19 |
| FR2772181A1 (en) | 1999-06-11 |
| ATE266245T1 (en) | 2004-05-15 |
| DE69823621D1 (en) | 2004-06-09 |
| EP0921541B1 (en) | 2004-05-06 |
| EP0921541A1 (en) | 1999-06-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |
Effective date: 20081020 |