EP1061534A3 - Soft magnetic, deformable composite material and process for producing the same - Google Patents

Soft magnetic, deformable composite material and process for producing the same Download PDF

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Publication number
EP1061534A3
EP1061534A3 EP00119956A EP00119956A EP1061534A3 EP 1061534 A3 EP1061534 A3 EP 1061534A3 EP 00119956 A EP00119956 A EP 00119956A EP 00119956 A EP00119956 A EP 00119956A EP 1061534 A3 EP1061534 A3 EP 1061534A3
Authority
EP
European Patent Office
Prior art keywords
soft magnetic
producing
compound
same
composite material
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.)
Withdrawn
Application number
EP00119956A
Other languages
German (de)
French (fr)
Other versions
EP1061534A2 (en
Inventor
Wilfried Aichele
Hans-Peter Koch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
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
Publication of EP1061534A2 publication Critical patent/EP1061534A2/en
Publication of EP1061534A3 publication Critical patent/EP1061534A3/en
Withdrawn legal-status Critical Current

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
    • H01F1/20—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 in the form of particles, e.g. powder
    • H01F1/22—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 in the form of particles, e.g. powder pressed, sintered, or bound together
    • H01F1/24—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 in the form of particles, e.g. powder pressed, sintered, or bound together the particles being insulated
    • H01F1/26—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 in the form of particles, e.g. powder pressed, sintered, or bound together the particles being insulated by macromolecular organic substances
    • 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
    • H01F1/20—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 in the form of particles, e.g. powder
    • H01F1/22—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 in the form of particles, e.g. powder pressed, sintered, or bound together
    • H01F1/24—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 in the form of particles, e.g. powder pressed, sintered, or bound together the particles being insulated
    • 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
    • H01F41/0246—Manufacturing of magnetic circuits by moulding or by pressing powder

Abstract

Es wird ein weichmagnetischer, formbarer Verbundwerkstoff vorgeschlagen, der ein weichmagnetische Eigenschaften aufweisendes Pulver und mindestens eine Silizium enthaltende Verbindung oder eine Aluminium enthaltene Verbindung oder eine Bor enthaltende Verbindung aufweist, wobei die Körner des Pulvers mit der Siliziumverbindung, der Aluminiumverbindung oder der Borverbindung beschichtet sind. Weiter wird ein Verfahren zur Herstellung eines solchen weichmagnetischen Verbundwerkstoffes vorgeschlagen, wobei nach einem Formpreßschritt des Verbundwerkstoffes der Formpreßling einer thermischen Behandlung unterworfen wird.It becomes a soft magnetic, malleable composite proposed that has a soft magnetic properties Powder and at least one containing silicon Connection or a compound containing aluminum or has a compound containing boron, the grains of the powder with the silicon compound, the aluminum compound or the boron compound are coated. Will continue a method for producing such a soft magnetic Composite proposed, where after a Compression step of the composite molding one is subjected to thermal treatment.

EP00119956A 1997-08-14 1998-08-11 Soft magnetic, deformable composite material and process for producing the same Withdrawn EP1061534A3 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19735271 1997-08-14
DE19735271A DE19735271C2 (en) 1997-08-14 1997-08-14 Soft magnetic, mouldable composite material and process for its production
EP98948761A EP0931322B1 (en) 1997-08-14 1998-08-11 Soft magnetic, deformable composite material and process for producing the same

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP98948761A Division EP0931322B1 (en) 1997-08-14 1998-08-11 Soft magnetic, deformable composite material and process for producing the same

Publications (2)

Publication Number Publication Date
EP1061534A2 EP1061534A2 (en) 2000-12-20
EP1061534A3 true EP1061534A3 (en) 2000-12-27

Family

ID=7838976

Family Applications (2)

Application Number Title Priority Date Filing Date
EP00119956A Withdrawn EP1061534A3 (en) 1997-08-14 1998-08-11 Soft magnetic, deformable composite material and process for producing the same
EP98948761A Expired - Lifetime EP0931322B1 (en) 1997-08-14 1998-08-11 Soft magnetic, deformable composite material and process for producing the same

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP98948761A Expired - Lifetime EP0931322B1 (en) 1997-08-14 1998-08-11 Soft magnetic, deformable composite material and process for producing the same

Country Status (5)

Country Link
US (1) US6537389B1 (en)
EP (2) EP1061534A3 (en)
JP (1) JP2001504283A (en)
DE (2) DE19735271C2 (en)
WO (1) WO1999009565A1 (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19945619A1 (en) * 1999-09-23 2001-04-19 Bosch Gmbh Robert Press compound and method for producing a soft magnetic composite material with the press compound
ATE383594T1 (en) * 2000-03-10 2008-01-15 Hoeganaes Ab METHOD FOR PRODUCING IRON-BASED POWDER AND IRON-BASED POWDER
DE10106172A1 (en) * 2001-02-10 2002-08-29 Bosch Gmbh Robert Process for producing a molded part from a soft magnetic composite material
DE10245088B3 (en) * 2002-09-27 2004-01-08 Vacuumschmelze Gmbh & Co. Kg Powder-metallurgically produced soft magnetic molded part with high maximum permeability, process for its production and its use
US7153594B2 (en) * 2002-12-23 2006-12-26 Höganäs Ab Iron-based powder
DE10331339A1 (en) 2003-07-10 2005-02-03 Siemens Ag Electromagnetic switching device
JP2005133148A (en) * 2003-10-30 2005-05-26 Mitsubishi Materials Corp Method for manufacturing compound soft magnetic material having high strength and high specific resistance
US7494600B2 (en) * 2003-12-29 2009-02-24 Höganäs Ab Composition for producing soft magnetic composites by powder metallurgy
SE0303580D0 (en) * 2003-12-29 2003-12-29 Hoeganaes Ab Composition for producing soft magnetic composites by powder metallurgy
KR100845392B1 (en) 2004-06-23 2008-07-09 회가내스 아베 Lubricants for insulated soft magnetic iron-based powder compositions
SE0401644D0 (en) * 2004-06-23 2004-06-23 Hoeganaes Ab Lubricants for insulated soft magnetic iron-based powder compositions
US7416578B2 (en) * 2004-09-17 2008-08-26 Höganäs Ab Powder metal composition
JP4613622B2 (en) * 2005-01-20 2011-01-19 住友電気工業株式会社 Soft magnetic material and dust core
DE102006032517B4 (en) * 2006-07-12 2015-12-24 Vaccumschmelze Gmbh & Co. Kg Process for the preparation of powder composite cores and powder composite core
JP5332408B2 (en) * 2008-08-29 2013-11-06 Ｔｄｋ株式会社 Powder magnetic core and manufacturing method thereof
US8911663B2 (en) * 2009-03-05 2014-12-16 Quebec Metal Powders, Ltd. Insulated iron-base powder for soft magnetic applications
DE102013212866A1 (en) * 2013-07-02 2015-01-08 Robert Bosch Gmbh Sintered soft magnetic composite material and process for its production

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4696725A (en) * 1985-06-26 1987-09-29 Kabushiki Kaisha Toshiba Magnetic core and preparation thereof
US4919734A (en) * 1984-09-29 1990-04-24 Kabushiki Kaisha Toshiba Compressed magnetic powder core
EP0406580A1 (en) * 1989-06-09 1991-01-09 Matsushita Electric Industrial Co., Ltd. A composite material and a method for producing the same

Family Cites Families (22)

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US2068658A (en) * 1934-06-20 1937-01-26 Associated Electric Lab Inc Inductance coil core
DE667919C (en) * 1934-08-16 1938-11-23 Herbert Burchard Process for the production of mass cores
DE966314C (en) * 1949-08-26 1957-07-25 Standard Elek K Ag Process for the production of mass cores from magnetizable powder particles raised with an insulating material of high softening temperature
US3856582A (en) * 1973-06-22 1974-12-24 Gen Electric Fabrication of matrix bonded transition metal-rare earth alloy magnets
DE2501042B2 (en) * 1974-01-23 1977-12-08 Rilsan Corp, Glen Rock, N.J. (V.StA.) POWDER, THE PARTICLES OF WHICH ARE PRACTICALLY UNIFORM COVERED WITH A NYLON, WHICH CAN BE TRAINED OR. LET FIBERS DRAW OUT
JPS579802A (en) * 1980-06-20 1982-01-19 Dainippon Ink & Chem Inc Metallic magnetic powder and its manufacture
DE3026696A1 (en) * 1980-07-15 1982-02-18 Basf Ag, 6700 Ludwigshafen FERROMAGNETIC, PARTICULARLY IRON METAL PARTICLES WITH A SURFACE COVER, METHOD FOR THE PRODUCTION THEREOF AND THEIR USE FOR THE PRODUCTION OF MAGNETIC RECORDING CARRIERS
US4601765A (en) * 1983-05-05 1986-07-22 General Electric Company Powdered iron core magnetic devices
JPH0611008B2 (en) * 1983-11-16 1994-02-09 株式会社東芝 Dust core
US4731191A (en) * 1985-12-31 1988-03-15 Dow Corning Corporation Method for protecting carbonyl iron powder and compositions therefrom
JPH01164006A (en) * 1987-09-02 1989-06-28 Kao Corp Ferromagnetic metal powder and manufacture thereof
US4869964A (en) * 1987-12-14 1989-09-26 The B. F. Goodrich Company Oxidation resistant compositions for use with rare earth magnets
US5198137A (en) * 1989-06-12 1993-03-30 Hoeganaes Corporation Thermoplastic coated magnetic powder compositions and methods of making same
JPH03241705A (en) * 1989-11-14 1991-10-28 Hitachi Metals Ltd Magnetically anisotropic magnet and manufacture thereof
US5211896A (en) * 1991-06-07 1993-05-18 General Motors Corporation Composite iron material
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EP0574856B1 (en) * 1992-06-15 1996-12-11 Kureha Kagaku Kogyo Kabushiki Kaisha Resin magnetic compound and molded article thereof
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Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4919734A (en) * 1984-09-29 1990-04-24 Kabushiki Kaisha Toshiba Compressed magnetic powder core
EP0434669A2 (en) * 1984-09-29 1991-06-26 Kabushiki Kaisha Toshiba Method of making a coated magnetic powder and a compressed magnetic powder core
US4696725A (en) * 1985-06-26 1987-09-29 Kabushiki Kaisha Toshiba Magnetic core and preparation thereof
EP0406580A1 (en) * 1989-06-09 1991-01-09 Matsushita Electric Industrial Co., Ltd. A composite material and a method for producing the same

Also Published As

Publication number Publication date
EP1061534A2 (en) 2000-12-20
EP0931322A1 (en) 1999-07-28
DE19735271A1 (en) 1999-02-25
DE19735271C2 (en) 2000-05-04
JP2001504283A (en) 2001-03-27
DE59808444D1 (en) 2003-06-26
WO1999009565A1 (en) 1999-02-25
US6537389B1 (en) 2003-03-25
EP0931322B1 (en) 2003-05-21

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