EP0848397B1 - Procédé de fabrication d'un composant magnétique en alliage magnétique doux à base de fer ayant une structure nanocristalline - Google Patents
Procédé de fabrication d'un composant magnétique en alliage magnétique doux à base de fer ayant une structure nanocristalline Download PDFInfo
- Publication number
- EP0848397B1 EP0848397B1 EP97402667A EP97402667A EP0848397B1 EP 0848397 B1 EP0848397 B1 EP 0848397B1 EP 97402667 A EP97402667 A EP 97402667A EP 97402667 A EP97402667 A EP 97402667A EP 0848397 B1 EP0848397 B1 EP 0848397B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- temperature
- magnetic
- crystallization
- heat treatment
- annealing
- 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
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 13
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 10
- 239000000956 alloy Substances 0.000 title claims abstract description 10
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 9
- 238000000137 annealing Methods 0.000 claims abstract description 36
- 238000002425 crystallisation Methods 0.000 claims abstract description 31
- 238000010438 heat treatment Methods 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 9
- 239000000203 mixture Substances 0.000 claims abstract description 9
- 229910001004 magnetic alloy Inorganic materials 0.000 claims abstract description 8
- 229910052758 niobium Inorganic materials 0.000 claims abstract description 8
- 230000008569 process Effects 0.000 claims abstract description 8
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 6
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 5
- 239000002159 nanocrystal Substances 0.000 claims abstract description 5
- 229910052715 tantalum Inorganic materials 0.000 claims abstract description 5
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 5
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 5
- 239000012535 impurity Substances 0.000 claims abstract description 4
- 238000004804 winding Methods 0.000 claims abstract description 4
- 230000008025 crystallization Effects 0.000 claims description 28
- 239000010955 niobium Substances 0.000 claims description 10
- 239000010949 copper Substances 0.000 claims description 7
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims description 7
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 5
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 5
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 5
- 229910052735 hafnium Inorganic materials 0.000 claims description 5
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 claims description 5
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 5
- 239000011733 molybdenum Substances 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- 239000010936 titanium Substances 0.000 claims description 4
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 4
- 239000010937 tungsten Substances 0.000 claims description 4
- 229910000808 amorphous metal alloy Inorganic materials 0.000 claims description 2
- 238000001953 recrystallisation Methods 0.000 claims description 2
- 238000003723 Smelting Methods 0.000 claims 1
- 230000000295 complement effect Effects 0.000 claims 1
- 229910052710 silicon Inorganic materials 0.000 abstract description 5
- 229910052796 boron Inorganic materials 0.000 abstract description 4
- 229910052802 copper Inorganic materials 0.000 abstract description 3
- -1 high-frequency Inorganic materials 0.000 abstract 1
- 230000035699 permeability Effects 0.000 description 15
- 238000011282 treatment Methods 0.000 description 11
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000006698 induction Effects 0.000 description 4
- 238000010791 quenching Methods 0.000 description 4
- 230000000171 quenching effect Effects 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- YFXPPSKYMBTNAV-UHFFFAOYSA-N bensultap Chemical compound C=1C=CC=CC=1S(=O)(=O)SCC(N(C)C)CSS(=O)(=O)C1=CC=CC=C1 YFXPPSKYMBTNAV-UHFFFAOYSA-N 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
- 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
- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S977/00—Nanotechnology
- Y10S977/70—Nanostructure
- Y10S977/832—Nanostructure having specified property, e.g. lattice-constant, thermal expansion coefficient
- Y10S977/833—Thermal property of nanomaterial, e.g. thermally conducting/insulating or exhibiting peltier or seebeck effect
Definitions
- the present invention relates to the manufacture of magnetic components in soft magnetic alloy based on iron having a nanocrystalline structure.
- Nanocrystalline magnetic materials are well known and have been described, in particular, in European patent applications EP 0 271 657 and EP 0 299 498. These are iron-based alloys, containing more than 60 at% (atoms%) of iron, copper, silicon, boron, and possibly at least one element taken among niobium, tungsten, tantalum, zirconium, hafnium, titanium and molybdenum, cast in the form of amorphous ribbons and then subjected to a treatment which causes extremely fine crystallization (the crystals have less 100 nanometers in diameter). These materials have magnetic properties particularly suitable for the manufacture of soft magnetic cores for electrotechnical devices such as earth leakage circuit breakers.
- hysteresis (Br / Bm ⁇ 0.5), i.e. a coated hysteresis cycle (Br / Bm ⁇ 0.3); Br / Bm being the ratio of remanent magnetic induction to magnetic induction Max.
- Round hysteresis cycles are obtained when treatment thermal consists of a simple annealing at a temperature between 500 ° C and 600 ° C.
- the lying hysteresis cycles are obtained when the treatment thermal includes at least one annealing under magnetic field, this annealing can be the annealing intended to cause the formation of nanocrystals.
- Nanocrystalline ribbons, or more precisely, magnetic components produced with these ribbons have a drawback which limits their use. This drawback is insufficient stability of the magnetic properties when the temperature rises above room temperature. This stability insufficient results in unreliability of circuit breaker operation differentials fitted with such magnetic cores.
- the object of the present invention is to remedy this drawback by providing a means for manufacturing magnetic cores from material nanocrystalline having magnetic properties whose temperature stability is significantly improved.
- the thermal relaxation treatment can be a maintenance for a time between 0.1 and 10 hours, at a temperature between 250 ° C and 480 ° C.
- the relaxation heat treatment can also consist of a progressive heating from room temperature to a temperature greater than 450 ° C, at a heating rate between 30 ° C / hour and 300 ° C / hour between 250 ° C and 450 ° C.
- At least one annealing constituting the heat treatment can be carried out under magnetic field.
- This process applies more particularly to soft magnetic alloys with iron base having a nanocrystalline structure, the chemical composition of which is such that Si ⁇ 14%.
- the alloy may have low levels of impurities provided by raw materials or resulting from production.
- the amorphous ribbon is obtained in a manner known per se by solidification very fast liquid alloy, poured, for example, on a cooled wheel.
- the magnetic core blanks are also manufactured known in itself, by winding the ribbon on a mandrel, cutting it and fixing its end by a welding point, in order to obtain small toroids of rectangular section.
- the blanks are first subjected to a so-called "relaxation" annealing, at a temperature below the temperature of onset of crystallization of the amorphous strip, and preferably between 250 ° C and 480 ° C, then an annealing of crystallization which may or may not be carried out under magnetic field, and possibly be followed by annealing at lowest temperature under magnetic field.
- This annealing of relaxation had for advantage of significantly reducing the sensitivity of magnetic properties nuclei at temperature.
- the inventors have also found that the annealing of relaxation prior to crystallization annealing had the added benefit of reduce the dispersion of the magnetic properties of the nuclei observed on mass production.
- the crystallization annealing is intended to precipitate in the matrix amorphous nanocrystals of size less than 100 nanometers, preferably between 10 and 20 nanometers. This very fine crystallization makes it possible to obtain the desired magnetic properties.
- the crystallization annealing consists of a maintaining at a temperature higher than the temperature at the start of crystallization and lower than the onset temperature of the secondary phases which deteriorate the magnetic properties.
- the annealing temperature of crystallization is between 500 ° C and 600 ° C, but it can be optimized for each ribbon, for example, by determining by tests the temperature which leads to maximum magnetic permeability.
- the annealing temperature of crystallization can then be chosen equal to this temperature, or, better, be chosen to be about 30 ° C higher.
- crystallization annealing can be carried out under a transverse magnetic field.
- the crystallization treatment can also be supplemented by annealing at a temperature below the crystallization start temperature, for example towards 400 ° C, carried out under transverse magnetic field.
- the heat treatment of the blanks magnetic component include a relaxation annealing, a crystallization possibly carried out under magnetic field, and, possibly, an additional annealing carried out under magnetic field.
- the relaxation annealing which precedes the crystallization annealing, and which can be performed both on the amorphous tape itself and on the component blank magnetic, can consist in maintaining a constant temperature during a time which preferably should be between 0.1 and 10 hours.
- This annealing can also consist of a gradual rise in temperature, which precedes, by example, crystallization annealing, and which must be done at a rate of rise in temperature between 30 ° C / h and 300 ° C / h, at least between 250 ° C and 450 ° C; preferably the rate of temperature rise should be around 100 ° C / h.
- the series of blanks of magnetic cores A2 and B2 have, for comparison, been treated in accordance with the prior art by a single crystallization annealing for 3 hours at 530 ° C.
- the maximum magnetic permeability at 50 Hz was measured at different temperatures between - 25 ° C and + 100 ° C, and it was expressed as a% of the maximum magnetic permeability at 50 Hz at 20 ° C.
- the first example relates to toroidal magnetic cores produced from ribbons 20 ⁇ m thick and 10 mm wide obtained by direct quenching on a cooled wheel, of an alloy of composition (in at%) Fe 73.5 Si 13.5 B 9 Cu 1 Nb 3 . After quenching on a wheel, it was checked by X-ray that the ribbon was completely amorphous. The ribbon was then separated into three sections, one, A, remained as it was, the other two, B and C, were subjected to relaxation annealing, for one, B, 1 hour at 400 ° C, for the other, C, 1 hour at 450 ° C.
- the second example relates to toroidal magnetic cores produced from ribbons 20 ⁇ m thick and 10 mm wide obtained by direct quenching on a cooled wheel, of an alloy of composition (in at%) Fe 73 Si 15 B 8 Cu 1 Nb 3 .
- ribbons 20 ⁇ m thick and 10 mm wide obtained by direct quenching on a cooled wheel, of an alloy of composition (in at%) Fe 73 Si 15 B 8 Cu 1 Nb 3 .
- the ribbon two batches of 300 toroids with an internal diameter of 11 mm and an external diameter of 15 mm were produced using automatic winding machines. The batches were then treated in ovens with neutral atmosphere. A control batch A was only subjected to a 1 hour crystallization annealing at 530 ° C.
- the second batch was treated in accordance with the invention: a relaxation annealing of 1 hour at 400 ° C. was first carried out, then a crystallization annealing of 1 hour at 530 ° C.
- the toroids were put in a box
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Electromagnetism (AREA)
- Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Crystallography & Structural Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Soft Magnetic Materials (AREA)
- Thin Magnetic Films (AREA)
- Hard Magnetic Materials (AREA)
- Manufacturing Of Steel Electrode Plates (AREA)
- Powder Metallurgy (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9615197 | 1996-12-11 | ||
| FR9615197A FR2756966B1 (fr) | 1996-12-11 | 1996-12-11 | Procede de fabrication d'un composant magnetique en alliage magnetique doux a base de fer ayant une structure nanocristalline |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0848397A1 EP0848397A1 (fr) | 1998-06-17 |
| EP0848397B1 true EP0848397B1 (fr) | 2002-09-18 |
Family
ID=9498537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP97402667A Expired - Lifetime EP0848397B1 (fr) | 1996-12-11 | 1997-11-07 | Procédé de fabrication d'un composant magnétique en alliage magnétique doux à base de fer ayant une structure nanocristalline |
Country Status (17)
| Country | Link |
|---|---|
| US (1) | US5911840A (cs) |
| EP (1) | EP0848397B1 (cs) |
| JP (1) | JPH10195528A (cs) |
| KR (1) | KR19980064039A (cs) |
| CN (1) | CN1134034C (cs) |
| AT (1) | ATE224582T1 (cs) |
| AU (1) | AU731520B2 (cs) |
| CZ (1) | CZ293837B6 (cs) |
| DE (1) | DE69715575T2 (cs) |
| ES (1) | ES2184047T3 (cs) |
| FR (1) | FR2756966B1 (cs) |
| HU (1) | HU216168B (cs) |
| PL (1) | PL184208B1 (cs) |
| SK (1) | SK284008B6 (cs) |
| TR (1) | TR199701599A3 (cs) |
| TW (1) | TW561193B (cs) |
| ZA (1) | ZA9710780B (cs) |
Families Citing this family (39)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6645314B1 (en) * | 2000-10-02 | 2003-11-11 | Vacuumschmelze Gmbh | Amorphous alloys for magneto-acoustic markers in electronic article surveillance having reduced, low or zero co-content and method of annealing the same |
| DE10134056B8 (de) * | 2001-07-13 | 2014-05-28 | Vacuumschmelze Gmbh & Co. Kg | Verfahren zur Herstellung von nanokristallinen Magnetkernen sowie Vorrichtung zur Durchführung des Verfahrens |
| EP1601622A4 (en) | 2003-02-14 | 2007-03-21 | Nanosteel Co | IMPROVED PROPERTIES OF AMORPHES / PARTIAL CRYSTALLINE COATINGS |
| DE102004024337A1 (de) * | 2004-05-17 | 2005-12-22 | Vacuumschmelze Gmbh & Co. Kg | Verfahren zur Herstellung nanokristalliner Stromwandlerkerne, nach diesem Verfahren hergestellte Magnetkerne sowie Stromwandler mit denselben |
| CN1297994C (zh) * | 2004-11-26 | 2007-01-31 | 中国兵器工业第五二研究所 | 无须磁场处理获取特殊矩形比纳米晶软磁材料的方法 |
| KR100647150B1 (ko) * | 2004-12-22 | 2006-11-23 | (주) 아모센스 | 자성코어를 갖는 누전차단기 |
| CN1332593C (zh) * | 2005-01-19 | 2007-08-15 | 华南理工大学 | 纳米晶软磁合金粉聚合物复合电磁屏蔽磁体的制备方法 |
| EP1724792A1 (fr) * | 2005-05-20 | 2006-11-22 | Imphy Alloys | Procédé de fabrication d'une bande en matériau nanocristallin et dispositif de fabrication d'un tore enroulé à partir de cette bande |
| DE102005034486A1 (de) | 2005-07-20 | 2007-02-01 | Vacuumschmelze Gmbh & Co. Kg | Verfahren zur Herstellung eines weichmagnetischen Kerns für Generatoren sowie Generator mit einem derartigen Kern |
| US20070151630A1 (en) * | 2005-12-29 | 2007-07-05 | General Electric Company | Method for making soft magnetic material having ultra-fine grain structure |
| US7909945B2 (en) | 2006-10-30 | 2011-03-22 | Vacuumschmelze Gmbh & Co. Kg | Soft magnetic iron-cobalt-based alloy and method for its production |
| US8012270B2 (en) | 2007-07-27 | 2011-09-06 | Vacuumschmelze Gmbh & Co. Kg | Soft magnetic iron/cobalt/chromium-based alloy and process for manufacturing it |
| US9057115B2 (en) | 2007-07-27 | 2015-06-16 | Vacuumschmelze Gmbh & Co. Kg | Soft magnetic iron-cobalt-based alloy and process for manufacturing it |
| WO2009038105A1 (ja) * | 2007-09-18 | 2009-03-26 | Japan Science And Technology Agency | 金属ガラス及びそれを用いた磁気記録媒体並びにその製造方法 |
| CN101853726A (zh) * | 2010-05-17 | 2010-10-06 | 南京新康达磁业有限公司 | 一种软磁材料及制备方法 |
| CN101935742B (zh) * | 2010-09-21 | 2013-01-02 | 中国矿业大学 | 一种制备优异软磁性能纳米晶合金的退火方法 |
| US8699190B2 (en) | 2010-11-23 | 2014-04-15 | Vacuumschmelze Gmbh & Co. Kg | Soft magnetic metal strip for electromechanical components |
| CN102129907B (zh) * | 2010-12-30 | 2012-05-30 | 上海世路特种金属材料有限公司 | 一种具有高初始磁导率和低剩磁的纳米晶软磁合金铁心及其制备方法 |
| CN102254675B (zh) * | 2011-07-14 | 2013-09-11 | 江西大有科技有限公司 | 软磁合金铁芯热处理工艺 |
| CN102543347B (zh) * | 2011-12-31 | 2015-10-14 | 中国科学院宁波材料技术与工程研究所 | 一种铁基纳米晶软磁合金及其制备方法 |
| CN102856031A (zh) * | 2012-09-10 | 2013-01-02 | 任静儿 | 一种磁性粉末合金材料 |
| CN102867604A (zh) * | 2012-09-10 | 2013-01-09 | 任静儿 | 一种软磁合金 |
| CN102867605A (zh) * | 2012-09-10 | 2013-01-09 | 任静儿 | 一种磁性合金 |
| CN102912257A (zh) * | 2012-10-19 | 2013-02-06 | 张家港市清大星源微晶有限公司 | 微晶材料 |
| CN102875024A (zh) * | 2012-10-19 | 2013-01-16 | 张家港市清大星源微晶有限公司 | 高导磁率的微晶材料 |
| DE102013103268B4 (de) * | 2013-04-02 | 2016-06-02 | Vacuumschmelze Gmbh & Co. Kg | Abschirmfolie und Verfahren zum Herstellen einer Abschirmfolie |
| CN103390492B (zh) * | 2013-07-31 | 2016-08-31 | 河北申科电子股份有限公司 | 一种开合式互感器用的超微晶切割铁芯的生产工艺 |
| CN104200982A (zh) * | 2014-03-28 | 2014-12-10 | 北京冶科磁性材料有限公司 | 高频静电除尘电源变压器用纳米晶磁芯的制备方法 |
| WO2016104000A1 (ja) | 2014-12-22 | 2016-06-30 | 日立金属株式会社 | Ｆｅ基軟磁性合金薄帯およびそれを用いた磁心 |
| CN104485192B (zh) * | 2014-12-24 | 2016-09-07 | 江苏奥玛德新材料科技有限公司 | 一种铁基非晶纳米晶软磁合金及其制备方法 |
| US11230754B2 (en) * | 2015-01-07 | 2022-01-25 | Metglas, Inc. | Nanocrystalline magnetic alloy and method of heat-treatment thereof |
| US11264156B2 (en) | 2015-01-07 | 2022-03-01 | Metglas, Inc. | Magnetic core based on a nanocrystalline magnetic alloy |
| DE102015211487B4 (de) | 2015-06-22 | 2018-09-20 | Vacuumschmelze Gmbh & Co. Kg | Verfahren zur herstellung eines nanokristallinen magnetkerns |
| TWI609972B (zh) * | 2015-11-05 | 2018-01-01 | 中國鋼鐵股份有限公司 | 鐵基非晶合金試片的製備方法及其應用 |
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| CN106555047A (zh) * | 2016-11-23 | 2017-04-05 | 宜春学院 | 铁基纳米晶合金软磁薄带的热处理方法 |
| CN109837452B (zh) * | 2019-01-23 | 2021-09-21 | 信维通信（江苏）有限公司 | 一种高Bs纳米晶材料及其制备方法 |
| CN113990650B (zh) * | 2021-10-19 | 2023-03-31 | 河北申科磁性材料有限公司 | 一种高磁导率开口互感器磁芯及其加工工艺和开口互感器 |
| CN115029541A (zh) * | 2022-06-20 | 2022-09-09 | 浙江晶精新材料科技有限公司 | 一种基于真空及覆铜纳米晶带材复合热处理方法 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4116728B1 (en) * | 1976-09-02 | 1994-05-03 | Gen Electric | Treatment of amorphous magnetic alloys to produce a wide range of magnetic properties |
| JPS6047407A (ja) * | 1983-08-25 | 1985-03-14 | Matsushita Electric Works Ltd | 磁心製造方法 |
| TW226034B (cs) * | 1991-03-06 | 1994-07-01 | Allied Signal Inc | |
| US5252144A (en) * | 1991-11-04 | 1993-10-12 | Allied Signal Inc. | Heat treatment process and soft magnetic alloys produced thereby |
| EP0637038B1 (en) * | 1993-07-30 | 1998-03-11 | Hitachi Metals, Ltd. | Magnetic core for pulse transformer and pulse transformer made thereof |
| US5611871A (en) * | 1994-07-20 | 1997-03-18 | Hitachi Metals, Ltd. | Method of producing nanocrystalline alloy having high permeability |
-
1996
- 1996-12-11 FR FR9615197A patent/FR2756966B1/fr not_active Expired - Fee Related
-
1997
- 1997-11-07 EP EP97402667A patent/EP0848397B1/fr not_active Expired - Lifetime
- 1997-11-07 AT AT97402667T patent/ATE224582T1/de not_active IP Right Cessation
- 1997-11-07 DE DE69715575T patent/DE69715575T2/de not_active Expired - Fee Related
- 1997-11-07 ES ES97402667T patent/ES2184047T3/es not_active Expired - Lifetime
- 1997-11-13 TW TW086116891A patent/TW561193B/zh not_active IP Right Cessation
- 1997-11-14 AU AU45199/97A patent/AU731520B2/en not_active Ceased
- 1997-11-28 SK SK1618-97A patent/SK284008B6/sk unknown
- 1997-12-01 ZA ZA9710780A patent/ZA9710780B/xx unknown
- 1997-12-09 CZ CZ19973983A patent/CZ293837B6/cs not_active IP Right Cessation
- 1997-12-10 HU HUP9702383A patent/HU216168B/hu not_active IP Right Cessation
- 1997-12-10 CN CNB971253668A patent/CN1134034C/zh not_active Expired - Fee Related
- 1997-12-11 JP JP9362223A patent/JPH10195528A/ja not_active Withdrawn
- 1997-12-11 TR TR97/01599A patent/TR199701599A3/tr unknown
- 1997-12-11 KR KR1019970067847A patent/KR19980064039A/ko not_active Ceased
- 1997-12-11 US US08/989,083 patent/US5911840A/en not_active Expired - Fee Related
- 1997-12-11 PL PL97323663A patent/PL184208B1/pl not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| HUP9702383A2 (hu) | 1998-07-28 |
| TW561193B (en) | 2003-11-11 |
| ZA9710780B (en) | 1998-06-12 |
| US5911840A (en) | 1999-06-15 |
| DE69715575T2 (de) | 2003-05-22 |
| AU731520B2 (en) | 2001-03-29 |
| EP0848397A1 (fr) | 1998-06-17 |
| HU216168B (hu) | 1999-04-28 |
| ES2184047T3 (es) | 2003-04-01 |
| HUP9702383A3 (en) | 1998-08-28 |
| CN1185012A (zh) | 1998-06-17 |
| TR199701599A2 (xx) | 2000-07-21 |
| PL184208B1 (pl) | 2002-09-30 |
| ATE224582T1 (de) | 2002-10-15 |
| KR19980064039A (ko) | 1998-10-07 |
| AU4519997A (en) | 1998-06-18 |
| SK284008B6 (sk) | 2004-07-07 |
| CZ293837B6 (cs) | 2004-08-18 |
| CZ398397A3 (cs) | 1998-07-15 |
| FR2756966A1 (fr) | 1998-06-12 |
| TR199701599A3 (tr) | 2000-07-21 |
| SK161897A3 (en) | 1998-12-02 |
| JPH10195528A (ja) | 1998-07-28 |
| HK1010938A1 (en) | 1999-07-02 |
| FR2756966B1 (fr) | 1998-12-31 |
| CN1134034C (zh) | 2004-01-07 |
| DE69715575D1 (de) | 2002-10-24 |
| PL323663A1 (en) | 1998-06-22 |
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