WO2008021571A3 - Magnetic composites - Google Patents

Magnetic composites Download PDF

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Publication number
WO2008021571A3
WO2008021571A3 PCT/US2007/018445 US2007018445W WO2008021571A3 WO 2008021571 A3 WO2008021571 A3 WO 2008021571A3 US 2007018445 W US2007018445 W US 2007018445W WO 2008021571 A3 WO2008021571 A3 WO 2008021571A3
Authority
WO
WIPO (PCT)
Prior art keywords
magnetic
composites
magnetic material
portions
magnetic composites
Prior art date
Application number
PCT/US2007/018445
Other languages
French (fr)
Other versions
WO2008021571A2 (en
Inventor
Robert J Thibodeau
Christopher Williams
Daniel Irvin
Original Assignee
Maglev Technologies Llc
Robert J Thibodeau
Christopher Williams
Daniel Irvin
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 Maglev Technologies Llc, Robert J Thibodeau, Christopher Williams, Daniel Irvin filed Critical Maglev Technologies Llc
Publication of WO2008021571A2 publication Critical patent/WO2008021571A2/en
Publication of WO2008021571A3 publication Critical patent/WO2008021571A3/en

Links

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
    • H01F41/0253—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 for manufacturing permanent magnets
    • H01F41/0273—Imparting anisotropy
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/0013—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor using fillers dispersed in the moulding material, e.g. metal particles
    • 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
    • H01F1/032—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 hard-magnetic materials
    • H01F1/04—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 hard-magnetic materials metals or alloys
    • H01F1/06—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 hard-magnetic materials metals or alloys in the form of particles, e.g. powder
    • H01F1/08—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 hard-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together
    • H01F1/083—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 hard-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together in a bonding agent
    • 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
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/02—Details of the magnetic circuit characterised by the magnetic material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16—Making multilayered or multicoloured articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0003—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular electrical or magnetic properties, e.g. piezoelectric
    • B29K2995/0008—Magnetic or paramagnetic
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F13/00—Apparatus or processes for magnetising or demagnetising
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12014—All metal or with adjacent metals having metal particles
    • Y10T428/12021—All metal or with adjacent metals having metal particles having composition or density gradient or differential porosity

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
  • Soft Magnetic Materials (AREA)
  • Hard Magnetic Materials (AREA)

Abstract

The present invention discloses methods and magnetic material composites capable of withstanding one or more loads without the need for a substructure to provide structural support thereto. The magnetic composites are formable from composites such as epoxies, resins, plastics and the like together with rare earth or other magnetic or magnetizable compounds, or magnetic nano-particles to form structural magnetic composites. The magnetic composites have one or more portions with an aggregation of the magnetic material and one or more portions free of or substantially free of the magnetic material. The magnetic composites are suitable for use to form components of electrical motors, generators, pumps, fans, paints, coatings and parts or derivatives thereof.
PCT/US2007/018445 2006-08-18 2007-08-20 Magnetic composites WO2008021571A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US83873706P 2006-08-18 2006-08-18
US60/838,737 2006-08-18

Publications (2)

Publication Number Publication Date
WO2008021571A2 WO2008021571A2 (en) 2008-02-21
WO2008021571A3 true WO2008021571A3 (en) 2008-10-09

Family

ID=38980956

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/018445 WO2008021571A2 (en) 2006-08-18 2007-08-20 Magnetic composites

Country Status (2)

Country Link
US (1) US20080044680A1 (en)
WO (1) WO2008021571A2 (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4566255B2 (en) * 2008-08-21 2010-10-20 アルプス電気株式会社 Magnetic sheet manufacturing method, magnetic sheet and magnetic sheet manufacturing apparatus
DE102009027090A1 (en) * 2009-06-23 2010-12-30 Evonik Degussa Gmbh Magnetic particles and polyethylene-containing composite material
US7951464B2 (en) * 2009-09-02 2011-05-31 General Electric Company Composite material with fiber alignment
US20120091832A1 (en) * 2009-09-21 2012-04-19 Soderberg Rod F Matrix material comprising magnetic particles for use in hybrid and electric vehicles
US20110074231A1 (en) * 2009-09-25 2011-03-31 Soderberg Rod F Hybrid and electic vehicles magetic field and electro magnetic field interactice systems
JP2011156664A (en) * 2010-01-29 2011-08-18 Showa Corp Method and apparatus for manufacturing power transmission system molding
EP2561232B1 (en) * 2010-04-19 2015-12-16 Pierburg Pump Technology GmbH Electric motor-vehicle coolant pump
GB201016006D0 (en) 2010-09-23 2010-11-10 Dyson Technology Ltd A reinforced magnet
CN102744403A (en) * 2012-06-19 2012-10-24 同济大学 Preparation method of nanocrystalline magnetic powder cores
DE102013213646A1 (en) * 2013-07-12 2015-01-15 Siemens Aktiengesellschaft Anisotropic rare earth-free matrix-bonded high-performance permanent magnet with nanocrystalline structure and method for its production
DE102013213644A1 (en) * 2013-07-12 2015-01-15 Siemens Aktiengesellschaft Anisotropic rare earth-free plastic-bonded high-performance permanent magnet with nanocrystalline structure and method for its production
EP3084780A1 (en) * 2013-12-20 2016-10-26 Condalign AS A body comprising a particle structure and method for making the same
DE102014111685A1 (en) * 2014-08-15 2016-02-18 Elkamet Kunststofftechnik Gmbh Plastic molding and method of its production
EP3212284B1 (en) * 2014-10-31 2021-07-07 Weinberg Medical Physics, Inc. Method and apparatus for non-contact axial particle rotation and decoupled particle propulsion
DE102015203908A1 (en) * 2015-03-05 2016-09-08 Arburg Gmbh + Co. Kg Rotor for an electric motor and associated motor shaft
JP6308205B2 (en) * 2015-12-28 2018-04-11 マツダ株式会社 Method for manufacturing anisotropic magnet, method for manufacturing anisotropic soft magnetic material, and method for manufacturing rotor of rotating electrical machine
DE102016224245A1 (en) * 2016-12-06 2018-06-07 Robert Bosch Gmbh Hand tool with a spring detent mechanism
US20200072062A1 (en) * 2018-08-31 2020-03-05 General Electric Company System and Method for Airfoil Vibration Control
US11642819B2 (en) * 2020-01-27 2023-05-09 GM Global Technology Operations LLC Composite components and methods of manufacturing composite components using magnetic forces at fiber preform seams

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6134902A (en) * 1984-07-26 1986-02-19 Japan Synthetic Rubber Co Ltd Manufacture of coated magnetic polymer grains
JPH08138923A (en) * 1994-11-04 1996-05-31 Sumitomo Metal Mining Co Ltd Resin-bonded magnet composition and resin-bonded magnet
US6224798B1 (en) * 2000-07-31 2001-05-01 Delphi Technologies, Inc. Method for fabricating powdered metal cores
EP1480235A1 (en) * 2002-04-25 2004-11-24 Matsushita Electric Industrial Co., Ltd. Flexible magnet and method for manufacturing motor using the same
EP1486995A1 (en) * 2003-06-10 2004-12-15 Hutchinson Magnetic encoding device and method for manufacturing thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6134902A (en) * 1984-07-26 1986-02-19 Japan Synthetic Rubber Co Ltd Manufacture of coated magnetic polymer grains
JPH08138923A (en) * 1994-11-04 1996-05-31 Sumitomo Metal Mining Co Ltd Resin-bonded magnet composition and resin-bonded magnet
US6224798B1 (en) * 2000-07-31 2001-05-01 Delphi Technologies, Inc. Method for fabricating powdered metal cores
EP1480235A1 (en) * 2002-04-25 2004-11-24 Matsushita Electric Industrial Co., Ltd. Flexible magnet and method for manufacturing motor using the same
EP1486995A1 (en) * 2003-06-10 2004-12-15 Hutchinson Magnetic encoding device and method for manufacturing thereof

Also Published As

Publication number Publication date
WO2008021571A2 (en) 2008-02-21
US20080044680A1 (en) 2008-02-21

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