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WO1996019001A1 - Materiau magnetique doux - Google Patents

Materiau magnetique doux Download PDF

Info

Publication number
WO1996019001A1
WO1996019001A1 PCT/DE1995/001643 DE9501643W WO9619001A1 WO 1996019001 A1 WO1996019001 A1 WO 1996019001A1 DE 9501643 W DE9501643 W DE 9501643W WO 9619001 A1 WO9619001 A1 WO 9619001A1
Authority
WO
WIPO (PCT)
Prior art keywords
percent
mass
cobalt
soft magnetic
iron
Prior art date
Application number
PCT/DE1995/001643
Other languages
German (de)
English (en)
Inventor
Nestor Rodriguez-Amaya
Walter Fuchs
Gerhard Schneider
Hubert Greif
Klaus Czerwinski
Original Assignee
Robert Bosch Gmbh
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 Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Priority to EP95936962A priority Critical patent/EP0804796A1/fr
Priority to JP8518025A priority patent/JPH11503873A/ja
Publication of WO1996019001A1 publication Critical patent/WO1996019001A1/fr

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
    • 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

Definitions

  • the invention relates to a soft magnetic material according to the preamble of the main claim.
  • Such materials are known in the composition of iron (Fe) cobalt (Co) - filler material (X) with a Co content> 25 percent by mass.
  • Fe iron
  • Co cobalt
  • X filler material
  • Bs high saturation induction
  • Various elements were used as alloy additive X, but the high cobalt contents mentioned were always added in order to achieve the desired high saturation induction, which entail poor formability and poor machinability.
  • the desired small amount can only be achieved with an alloy content of additives of less than 2 to 3 percent by mass
  • iron-chromium alloys do have the to prevent Eddy currents in iron have the desired high specific resistance values, but they are below about 1.7 Tesla (T) in saturation induction. Iron-silicon alloys also have relatively low saturation induction and are also very difficult to machine mechanically.
  • the figure shows the saturation induction and the specific electrical resistance of different material groups in comparison.
  • the soft magnetic material according to the invention with the characterizing features of the main claim has the advantage that a high saturation induction is achieved with a high specific electrical resistance and good mechanical workability.
  • materials have proven to be particularly advantageous which, in addition to iron, contain 5 to 20 percent by mass of cobalt, as well as 1 to 7 percent by weight of aluminum and preferably additionally 0 to 8 percent by weight of manganese.
  • another advantageous material contains 5 to 20 percent by weight cobalt and 1 to 7 percent by weight aluminum and preferably additionally 0 to 4 percent by weight vanadium.
  • the own shares are not explicitly mentioned for the different alloys, they each form the completion to 100 percent by mass.
  • the drawing shows a diagram of the areas of saturation induction Bs (T) and the specific electrical resistance Rspec ( ⁇ ) of different materials in comparison. It can be seen here that magnetic materials with a high cobalt content of 25 to 50 mass percent have a high saturation induction, but a very low specific electrical resistance. On the other hand, alloys with a chromium content of 13 percent by mass have a high specific electrical resistance, which is desirable because of the suppression of eddy currents in the magnet, but with too little induction of saturation. The known alloys of iron and silicon are also not in the desired diagram range with high saturation induction and at the same time high specific electrical resistance, as is characterized by the field Fe- (5-20) Co-X.
  • the magnetic material according to the invention Compared to the known Fe-Co-X materials with Co contents between 25 and 50 mass percent and additional elements of ⁇ 2.5 mass percent vanadium or chromium, the magnetic material according to the invention has the desired high specific electrical resistance> 0.5 ⁇ m with high saturation induction at the same time> 1.9 T. Due to the low Co content of less than 20 percent by mass, the processability of the material is significantly better than that of conventional materials and at the same time the raw material price is significantly lower.

Landscapes

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

Abstract

La présente invention concerne un matériau magnétique doux comportant, outre du fer et du cobalt, au moins un autre élément d'alliage pour l'obtention d'une induction de saturation élevée ainsi que d'une forte résistivité électrique et d'une bonne usinabilité. Ce but est atteint grâce à une adjonction de cobalt ramenée, par rapport aux alliages connus, à 5 - 20 % en masse, avec adjonction simultanée d'un élément d'alliage qui est l'aluminium ainsi que, de préférence, d'autres éléments d'alliage: le manganèse ou le vanadium.
PCT/DE1995/001643 1994-12-14 1995-11-23 Materiau magnetique doux WO1996019001A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP95936962A EP0804796A1 (fr) 1994-12-14 1995-11-23 Materiau magnetique doux
JP8518025A JPH11503873A (ja) 1994-12-14 1995-11-23 軟質磁性材料

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4444482A DE4444482A1 (de) 1994-12-14 1994-12-14 Weichmagnetischer Werkstoff
DEP4444482.6 1994-12-14

Publications (1)

Publication Number Publication Date
WO1996019001A1 true WO1996019001A1 (fr) 1996-06-20

Family

ID=6535765

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1995/001643 WO1996019001A1 (fr) 1994-12-14 1995-11-23 Materiau magnetique doux

Country Status (5)

Country Link
EP (1) EP0804796A1 (fr)
JP (1) JPH11503873A (fr)
KR (1) KR980700669A (fr)
DE (1) DE4444482A1 (fr)
WO (1) WO1996019001A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001086665A1 (fr) * 2000-05-12 2001-11-15 Imphy Ugine Precision Alliage fer-cobalt, notamment pour noyau mobile d'actionneur électromagnétique et son procédé de fabrication
WO2002031844A3 (fr) * 2000-10-10 2002-11-21 Crs Holdings Inc Alliages magnetiques tendres de co-mn-fe
US8887376B2 (en) 2005-07-20 2014-11-18 Vacuumschmelze Gmbh & Co. Kg Method for production of a soft-magnetic core having CoFe or CoFeV laminations and generator or motor comprising such a core
US9057115B2 (en) 2007-07-27 2015-06-16 Vacuumschmelze Gmbh & Co. Kg Soft magnetic iron-cobalt-based alloy and process for manufacturing it
US11114226B2 (en) 2015-05-04 2021-09-07 Carpenter Technology Corporation Ultra-low cobalt iron-cobalt magnetic alloys

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19928764B4 (de) * 1999-06-23 2005-03-17 Vacuumschmelze Gmbh Eisen-Kobalt-Legierung mit geringer Koerzitivfeldstärke und Verfahren zur Herstellung von Halbzeug aus einer Eisen-Kobalt-Legierung
DE10134056B8 (de) 2001-07-13 2014-05-28 Vacuumschmelze Gmbh & Co. Kg Verfahren zur Herstellung von nanokristallinen Magnetkernen sowie Vorrichtung zur Durchführung des Verfahrens
FR2896080B1 (fr) * 2006-01-12 2008-04-04 Valeo Sys Controle Moteur Sas Actionneur electromagnetique a aimants permanents disposes en v selon un agencement electromagnetiquement optimise
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

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61253348A (ja) * 1985-05-04 1986-11-11 Daido Steel Co Ltd 軟質磁性材料
DE4030791A1 (de) * 1990-01-26 1991-08-01 Alps Electric Co Ltd Legierung mit hoher saettigungsflussdichte
JPH06346201A (ja) * 1993-06-14 1994-12-20 Daido Steel Co Ltd 高飽和磁束密度・高電気抵抗磁性合金

Family Cites Families (3)

* Cited by examiner, † Cited by third party
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
JPH0380490A (ja) * 1989-08-22 1991-04-05 Victor Co Of Japan Ltd 磁気記録再生装置
JP3623970B2 (ja) * 1992-06-17 2005-02-23 三井化学株式会社 Ｆｅ基軟磁性合金および製造方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61253348A (ja) * 1985-05-04 1986-11-11 Daido Steel Co Ltd 軟質磁性材料
DE4030791A1 (de) * 1990-01-26 1991-08-01 Alps Electric Co Ltd Legierung mit hoher saettigungsflussdichte
JPH06346201A (ja) * 1993-06-14 1994-12-20 Daido Steel Co Ltd 高飽和磁束密度・高電気抵抗磁性合金

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 011, no. 106 (C - 414) 3 April 1987 (1987-04-03) *
PATENT ABSTRACTS OF JAPAN vol. 940, no. 012 *

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001086665A1 (fr) * 2000-05-12 2001-11-15 Imphy Ugine Precision Alliage fer-cobalt, notamment pour noyau mobile d'actionneur électromagnétique et son procédé de fabrication
FR2808806A1 (fr) * 2000-05-12 2001-11-16 Imphy Ugine Precision Alliage fer-cobalt, notamment pour noyau mobile d'actionneur electromagnetique, et son procede de fabrication
US7128790B2 (en) 2000-05-12 2006-10-31 Imphy Ugine Precision Iron-cobalt alloy, in particular for electromagnetic actuator mobile core and method for making same
KR100711188B1 (ko) * 2000-05-12 2007-04-24 임피 위진느 프레씨지옹 철-코발트 합금 및 이로 제조된 제품 및 그 제조방법
US7819990B2 (en) 2000-05-12 2010-10-26 Imphy Ugine Precision Iron-cobalt alloy, in particular for the moving core of electromagnetic actuators
WO2002031844A3 (fr) * 2000-10-10 2002-11-21 Crs Holdings Inc Alliages magnetiques tendres de co-mn-fe
US8887376B2 (en) 2005-07-20 2014-11-18 Vacuumschmelze Gmbh & Co. Kg Method for production of a soft-magnetic core having CoFe or CoFeV laminations and generator or motor comprising such a core
US9057115B2 (en) 2007-07-27 2015-06-16 Vacuumschmelze Gmbh & Co. Kg Soft magnetic iron-cobalt-based alloy and process for manufacturing it
US11114226B2 (en) 2015-05-04 2021-09-07 Carpenter Technology Corporation Ultra-low cobalt iron-cobalt magnetic alloys

Also Published As

Publication number Publication date
EP0804796A1 (fr) 1997-11-05
DE4444482A1 (de) 1996-06-27
JPH11503873A (ja) 1999-03-30
KR980700669A (ko) 1998-03-30

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