WO1998028758A1 - Verfahren zum herstellen von bandkernbändern sowie induktives bauelement mit bandkern - Google Patents
Verfahren zum herstellen von bandkernbändern sowie induktives bauelement mit bandkern Download PDFInfo
- Publication number
- WO1998028758A1 WO1998028758A1 PCT/DE1997/002585 DE9702585W WO9828758A1 WO 1998028758 A1 WO1998028758 A1 WO 1998028758A1 DE 9702585 W DE9702585 W DE 9702585W WO 9828758 A1 WO9828758 A1 WO 9828758A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tape
- amorphous ferromagnetic
- alloy
- heat treatment
- band
- Prior art date
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
- H01F1/15316—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
-
- 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
-
- 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
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/4902—Electromagnet, transformer or inductor
- Y10T29/49071—Electromagnet, transformer or inductor by winding or coiling
Definitions
- the invention relates to an inductive component with a band core, which is wound from an amorphous ferromagnetic alloy, and a manufacturing method for band core bands made from amorphous ferromagnetic material.
- amorphous ferromagnetic alloys In order to achieve good soft magnetic properties, almost magnetostriction-free, amorphous ferromagnetic alloys must also be subjected to heat treatment. Typically, these are annealed in a magnetic field in order to selectively set a flat B-H loop.
- the latter is done on completely wound strip cores, because the amorphous material usually embrittles during tempering and the internal mechanical stresses required for the highest permeabilities, which are caused by the manufacture and also result from the winding of the strip core, can take place.
- the invention is therefore based on the object of further developing this production method for ribbon core tapes made of amorphous ferromagnetic material, so that ribbon cores, in particular for toroidal ribbon cores, and inductive components produced therefrom can be produced with little effort and in which substantially higher permeabilities and thereby can be produced improved magnetic properties can be achieved.
- this object is achieved with a
- the amorphous ferromagnetic tape is subjected to a heat treatment in a magnetic field transverse to the tape direction in the passage, the throughput speed being selected such that the amorphous ferromagnetic tape is heated to a temperature of 250 ° C. for a heat treatment time of 0.5 sec ⁇ t ⁇ 60 sec T ⁇ 450 ° C is heated.
- the tape core tapes are cut to length from the heat-treated amorphous ferromagnetic tape.
- the manufacturing method according to the invention can be carried out with the lowest possible energy.
- ductile, amorphous core tapes with flat B-H loops can be produced, which are very linear up to their saturation range and have a permeability range between approximately 2000 and 15000.
- tape cores, in particular toroidal tape cores can be produced therefrom, which have a winding diameter d ⁇ 10 mm, without the magnetic properties being significantly impaired.
- the continuous heat treatment does not require any protective gas, and exposure to air is particularly advantageous, since the thin oxidation layer that forms on the tape core tapes supports the required electrical tape layer insulation.
- Very good strip core tapes can be achieved at throughput speeds which are set such that the amorphous ferromagnetic tape is heated to a temperature of 300 ° C. ⁇ T ⁇ 400 ° C. for a heat treatment time t ⁇ 30 sec.
- the proportion of iron and / or manganese in the alloy is set such that the amorphous ferromagnetic band has a saturation magnetostriction ⁇ s ⁇ 0.1 ppm, preferably ⁇ ⁇ ⁇ 0.05 ppm, after the heat treatment.
- the band core is accordingly made of a ductile, heat-treated
- Band core tape wound from an amorphous ferromagnetic alloy the amorphous ferromagnetic alloy being a Saturation magnetostriction ⁇ s ⁇ 0.1 ppm and a flat B-H loop, which is as linear as possible up to the saturation range.
- the amorphous ferromagnetic alloy is a cobalt-based alloy which contains molar proportions of iron and / or manganese between 1 and 10 atom% of the alloy.
- the tape core tape is therefore heat-treated before winding, and the tape cores can be easily wound due to the ductility achieved.
- the band cores can have an average diameter d ⁇ 50mm, even an average diameter d ⁇ 10mm.
- inductive components can be produced which have toroidal cores.
- Figure 2 shows the relative elongation at break ⁇ F after the
- FIG. 3 shows anisotropy field strength H A , average permeability level ⁇ and saturation magnetostriction ⁇ s of a band core band according to the invention after continuous heat treatment in the transverse field as a function of the heat treatment temperature T a ,
- FIG. 4 anisotropy field strength H A , average permeability level ⁇ and
- Toroidal tape cores with dimensions 22xl ⁇ x ⁇ mm and 12x8x6mm made of cross-field treated in continuous
- Figure 6 amplitude permeabilities at 50 Hz, measured on toroidal tape cores of dimensions 22x16x6mm and 12x8x ⁇ mm from cross-field treated in the run
- FIG. 7 shows the changes in the saturation magnetostriction ⁇ s of two band core tapes according to the invention after continuous heat treatment in the transverse field as a function of the heat treatment temperature T a .
- the amorphous ferromagnetic tapes were cast from a melt by means of rapid solidification and then heat-treated in a 40 cm long cross-field furnace at a throughput speed of 1.6 m / minute at different temperatures.
- the magnetic field of approx. 159-200 A / m applied perpendicular to the strip direction and in the strip plane during the heat treatment was generated by a permanent magnet yoke of approx. 40 cm in length, which is located in the continuous furnace.
- Figure 1 shows the typical temperature profile of the continuous furnace.
- the length of the homogeneous temperature zone was approx. 15 to 20 cm, which means that the above flow rate corresponds to an effective heat treatment time of approx. 7 seconds.
- the throughput speed could be increased to approx. 10 to 20m / minute.
- toroidal tape cores with the dimensions 22 ⁇ 16 ⁇ 6 mm and 12 ⁇ 8 ⁇ 6 mm were wound from the strip, which had been heat-treated at 350 ° C., in order to check to what extent the winding tensions influence the properties of the material.
- the ductility of the heat-treated material was also determined by buckling and tear tests. As can be seen in FIG. 2, embrittlement only sets at a relatively high rate in the heat treatment time selected
- FIG. 5 shows the B-H loops of the toroidal cores wound from the heat-treated band core band.
- the amplitude permeability of the toroidal cores is shown in FIG. 6.
- FIG. 7 shows the course of the change in the magnetostriction after the heat treatment for the two alloys examined.
- the magnetostriction adjustment must be carried out more precisely than with the material that is only heat-treated after the winding of the ring band cores. It is optimal that after the
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
- Soft Magnetic Materials (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10528200A JP2000505953A (ja) | 1996-12-20 | 1997-11-06 | 巻鉄心用帯板の製造方法並びに巻鉄心を備えた誘導性素子 |
EP97948723A EP0885445B1 (de) | 1996-12-20 | 1997-11-06 | Verfahren zum herstellen von bandkernbändern sowie induktives bauelement mit bandkern |
DE59706683T DE59706683D1 (de) | 1996-12-20 | 1997-11-06 | Verfahren zum herstellen von bandkernbändern sowie induktives bauelement mit bandkern |
US09/125,409 US6171408B1 (en) | 1996-12-20 | 1997-11-06 | Process for manufacturing tape wound core strips and inductive component with a tape wound core |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19653428A DE19653428C1 (de) | 1996-12-20 | 1996-12-20 | Verfahren zum Herstellen von Bandkernbändern sowie induktives Bauelement mit Bandkern |
DE19653428.3 | 1996-12-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998028758A1 true WO1998028758A1 (de) | 1998-07-02 |
Family
ID=7815631
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1997/002585 WO1998028758A1 (de) | 1996-12-20 | 1997-11-06 | Verfahren zum herstellen von bandkernbändern sowie induktives bauelement mit bandkern |
Country Status (6)
Country | Link |
---|---|
US (1) | US6171408B1 (de) |
EP (1) | EP0885445B1 (de) |
JP (1) | JP2000505953A (de) |
CN (1) | CN1212073A (de) |
DE (2) | DE19653428C1 (de) |
WO (1) | WO1998028758A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001042726A2 (fr) * | 1999-12-09 | 2001-06-14 | L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Appareil et procede de separation par distillation cryogenique |
JP4755340B2 (ja) * | 1998-09-17 | 2011-08-24 | ヴァキュームシュメルツェ ゲーエムベーハー ウント コンパニー カーゲー | 直流電流公差を有する変流器 |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3596291B2 (ja) * | 1998-07-07 | 2004-12-02 | セイコーエプソン株式会社 | 投写型表示装置 |
EP1129459B1 (de) * | 1998-11-13 | 2004-06-02 | Vacuumschmelze GmbH | Verwendung eines magnetkerns für einen stromwandler, verfahren zur herstellung eines magnetkerns und stromwandler mit einem magnetkern |
DE10134056B8 (de) * | 2001-07-13 | 2014-05-28 | Vacuumschmelze Gmbh & Co. Kg | Verfahren zur Herstellung von nanokristallinen Magnetkernen sowie Vorrichtung zur Durchführung des Verfahrens |
SE523321C2 (sv) * | 2002-06-20 | 2004-04-13 | Covial Device Ab | Sätt och anordning för avkänning och indikering av akustisk emission |
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 |
DE102005045911B4 (de) * | 2005-09-26 | 2012-04-12 | Vacuumschmelze Gmbh & Co. Kg | Magnetkern, Magnetanodnung und Verfahren zur Herstellung des Magnetkerns |
WO2008051623A2 (en) * | 2006-02-21 | 2008-05-02 | Carnegie Mellon University | Soft magnetic alloy and uses thereof |
DE502007000329D1 (de) | 2006-10-30 | 2009-02-05 | Vacuumschmelze Gmbh & Co Kg | Weichmagnetische Legierung auf Eisen-Kobalt-Basis sowie Verfahren zu deren Herstellung |
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 |
US10580571B2 (en) | 2012-04-16 | 2020-03-03 | Vacuumschmelze Gmbh & Co. Kg | Method and device for producing soft magnetic strip material for strip ring cores |
DE102015218423A1 (de) * | 2014-09-25 | 2016-03-31 | Continental Teves Ag & Co. Ohg | Verfahren zum Herstellen eines magnetischen Kernelements mit einer Haltefolie |
CN105861908B (zh) * | 2016-06-26 | 2017-10-17 | 中国计量大学 | 一种永磁材料的制备方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3215263A1 (de) * | 1981-04-24 | 1982-11-18 | Hitachi Metals, Ltd., Tokyo | Verfahren zur waermebehandlung eines amorphen materials |
US4769091A (en) * | 1985-08-20 | 1988-09-06 | Hitachi Metals Ltd. | Magnetic core |
EP0737986A1 (de) * | 1995-04-12 | 1996-10-16 | Sensormatic Electronics Corporation | Magnetfeld-Glühung eines amorphes Materials für Anwendung in eines ferromagnetisches Etikett |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS599157A (ja) * | 1982-07-08 | 1984-01-18 | Sony Corp | 非晶質磁性合金の熱処理方法 |
US4668309A (en) * | 1986-06-09 | 1987-05-26 | Allied Corporation | Rapid magnetic annealing of amorphous metal in molten tin |
US5256211A (en) * | 1991-12-19 | 1993-10-26 | Allied Signal | Rapid annealing method using shorted secondary technique |
US5568125A (en) * | 1994-06-30 | 1996-10-22 | Sensormatic Electronics Corporation | Two-stage annealing process for amorphous ribbon used in an EAS marker |
DE19533362A1 (de) * | 1995-09-09 | 1997-03-13 | Vacuumschmelze Gmbh | Längsgestreckter Körper als Sicherungsetikett für elektromagnetische Diebstahlsicherungssysteme |
-
1996
- 1996-12-20 DE DE19653428A patent/DE19653428C1/de not_active Expired - Fee Related
-
1997
- 1997-11-06 WO PCT/DE1997/002585 patent/WO1998028758A1/de active IP Right Grant
- 1997-11-06 CN CN97192424A patent/CN1212073A/zh active Pending
- 1997-11-06 EP EP97948723A patent/EP0885445B1/de not_active Expired - Lifetime
- 1997-11-06 US US09/125,409 patent/US6171408B1/en not_active Expired - Lifetime
- 1997-11-06 JP JP10528200A patent/JP2000505953A/ja active Pending
- 1997-11-06 DE DE59706683T patent/DE59706683D1/de not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3215263A1 (de) * | 1981-04-24 | 1982-11-18 | Hitachi Metals, Ltd., Tokyo | Verfahren zur waermebehandlung eines amorphen materials |
US4769091A (en) * | 1985-08-20 | 1988-09-06 | Hitachi Metals Ltd. | Magnetic core |
EP0737986A1 (de) * | 1995-04-12 | 1996-10-16 | Sensormatic Electronics Corporation | Magnetfeld-Glühung eines amorphes Materials für Anwendung in eines ferromagnetisches Etikett |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4755340B2 (ja) * | 1998-09-17 | 2011-08-24 | ヴァキュームシュメルツェ ゲーエムベーハー ウント コンパニー カーゲー | 直流電流公差を有する変流器 |
WO2001042726A2 (fr) * | 1999-12-09 | 2001-06-14 | L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Appareil et procede de separation par distillation cryogenique |
FR2802293A1 (fr) * | 1999-12-09 | 2001-06-15 | Air Liquide | Appareil et procede de separation par distillation cryogenique |
WO2001042726A3 (fr) * | 1999-12-09 | 2002-02-14 | Air Liquide | Appareil et procede de separation par distillation cryogenique |
US6427485B1 (en) | 1999-12-09 | 2002-08-06 | L'ari Liquide, Societe Anonyme A Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procedes Georges Claude | Device and method for separating substances by cryogenic distillation |
Also Published As
Publication number | Publication date |
---|---|
US6171408B1 (en) | 2001-01-09 |
EP0885445A1 (de) | 1998-12-23 |
EP0885445B1 (de) | 2002-03-20 |
DE19653428C1 (de) | 1998-03-26 |
CN1212073A (zh) | 1999-03-24 |
JP2000505953A (ja) | 2000-05-16 |
DE59706683D1 (de) | 2002-04-25 |
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