DE69226787T2 - Thermoplastisch überzogene magnetpulverzusammensetzungen und verfahren zu deren herstellung - Google Patents

Thermoplastisch überzogene magnetpulverzusammensetzungen und verfahren zu deren herstellung

Info

Publication number
DE69226787T2
DE69226787T2 DE69226787T DE69226787T DE69226787T2 DE 69226787 T2 DE69226787 T2 DE 69226787T2 DE 69226787 T DE69226787 T DE 69226787T DE 69226787 T DE69226787 T DE 69226787T DE 69226787 T2 DE69226787 T2 DE 69226787T2
Authority
DE
Germany
Prior art keywords
production
magnetic powder
coated magnetic
powder compositions
thermoplastically coated
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 - Fee Related
Application number
DE69226787T
Other languages
English (en)
Other versions
DE69226787D1 (de
Inventor
Howard Rutz
Christopher Oliver
Brooks Quin
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.)
Hoeganaes Corp
Original Assignee
Hoeganaes Corp
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 Hoeganaes Corp filed Critical Hoeganaes Corp
Publication of DE69226787D1 publication Critical patent/DE69226787D1/de
Application granted granted Critical
Publication of DE69226787T2 publication Critical patent/DE69226787T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12Magnets 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
    • H01F1/14Magnets 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
    • H01F1/20Magnets 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F1/00Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/10Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C33/00Making ferrous alloys
    • C22C33/02Making ferrous alloys by powder metallurgy
    • C22C33/0207Using a mixture of prealloyed powders or a master alloy
    • C22C33/0228Using a mixture of prealloyed powders or a master alloy comprising other non-metallic compounds or more than 5% of graphite
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12Magnets 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
    • H01F1/14Magnets 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
    • H01F1/20Magnets 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
    • H01F1/22Magnets 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
    • H01F1/24Magnets 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
    • H01F1/26Magnets 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
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F3/00Cores, Yokes, or armatures
    • H01F3/08Cores, Yokes, or armatures made from powder
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00Apparatus 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
    • H01F41/02Apparatus 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
    • H01F41/0206Manufacturing of magnetic cores by mechanical means
    • H01F41/0246Manufacturing of magnetic circuits by moulding or by pressing powder
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/24Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24942Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
    • Y10T428/24992Density or compression of components
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/25Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • Y10T428/256Heavy metal or aluminum or compound thereof
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/29Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982Particulate matter [e.g., sphere, flake, etc.]
    • Y10T428/2991Coated
    • Y10T428/2998Coated including synthetic resin or polymer
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/31504Composite [nonstructural laminate]
    • Y10T428/31507Of polycarbonate
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/31504Composite [nonstructural laminate]
    • Y10T428/31533Of polythioether
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/31504Composite [nonstructural laminate]
    • Y10T428/31721Of polyimide

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Materials Engineering (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Soft Magnetic Materials (AREA)
  • Powder Metallurgy (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
DE69226787T 1991-05-17 1992-05-15 Thermoplastisch überzogene magnetpulverzusammensetzungen und verfahren zu deren herstellung Expired - Fee Related DE69226787T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/701,776 US5198137A (en) 1989-06-12 1991-05-17 Thermoplastic coated magnetic powder compositions and methods of making same
PCT/US1992/004127 WO1992020522A1 (en) 1991-05-17 1992-05-15 Thermoplastic coated magnetic powder compositions and methods of making same

Publications (2)

Publication Number Publication Date
DE69226787D1 DE69226787D1 (de) 1998-10-01
DE69226787T2 true DE69226787T2 (de) 1999-05-06

Family

ID=24818630

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69226787T Expired - Fee Related DE69226787T2 (de) 1991-05-17 1992-05-15 Thermoplastisch überzogene magnetpulverzusammensetzungen und verfahren zu deren herstellung

Country Status (6)

Country Link
US (1) US5198137A (de)
EP (1) EP0647180B1 (de)
JP (1) JP3307931B2 (de)
DE (1) DE69226787T2 (de)
TW (1) TW368667B (de)
WO (1) WO1992020522A1 (de)

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US5629092A (en) 1994-12-16 1997-05-13 General Motors Corporation Lubricous encapsulated ferromagnetic particles
US5607768A (en) * 1995-05-15 1997-03-04 General Motors Corporation Lubricous polymer-encapsulated ferromagnetic particles and method of making
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EP0845790B1 (de) * 1996-11-28 2002-07-10 Fludicon GmbH Magnetorheologische Flüssigkeiten und mit Polymer beschichtete, magnetische Teilchen
US6039784A (en) * 1997-03-12 2000-03-21 Hoeganaes Corporation Iron-based powder compositions containing green strength enhancing lubricants
US5767426A (en) * 1997-03-14 1998-06-16 Hoeganaes Corp. Ferromagnetic powder compositions formulated with thermoplastic materials and fluoric resins and compacted articles made from the same
DE19735271C2 (de) * 1997-08-14 2000-05-04 Bosch Gmbh Robert Weichmagnetischer, formbarer Verbundwerkstoff und Verfahren zu dessen Herstellung
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US5935722A (en) * 1997-09-03 1999-08-10 Lockheed Martin Energy Research Corporation Laminated composite of magnetic alloy powder and ceramic powder and process for making same
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SE9704494D0 (sv) 1997-12-02 1997-12-02 Hoeganaes Ab Lubricant for metallurgical powder compositions
US5982073A (en) 1997-12-16 1999-11-09 Materials Innovation, Inc. Low core loss, well-bonded soft magnetic parts
US6372348B1 (en) 1998-11-23 2002-04-16 Hoeganaes Corporation Annealable insulated metal-based powder particles
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US6652805B2 (en) 1999-07-02 2003-11-25 Holl Technologies Company Highly filled composites of powdered fillers and polymer matrix
US6391082B1 (en) * 1999-07-02 2002-05-21 Holl Technologies Company Composites of powdered fillers and polymer matrix
US7538237B2 (en) * 1999-07-02 2009-05-26 Kreido Laboratories Process for high shear gas-liquid reactions
US6742774B2 (en) * 1999-07-02 2004-06-01 Holl Technologies Company Process for high shear gas-liquid reactions
CA2282636A1 (en) 1999-09-16 2001-03-16 Philippe Viarouge Power transformers and power inductors for low frequency applications using isotropic composite magnetic materials with high power to weight ratio
US6534564B2 (en) 2000-05-31 2003-03-18 Hoeganaes Corporation Method of making metal-based compacted components and metal-based powder compositions suitable for cold compaction
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Also Published As

Publication number Publication date
JP3307931B2 (ja) 2002-07-29
EP0647180B1 (de) 1998-08-26
DE69226787D1 (de) 1998-10-01
TW368667B (en) 1999-09-01
WO1992020522A1 (en) 1992-11-26
EP0647180A4 (de) 1994-03-11
US5198137A (en) 1993-03-30
EP0647180A1 (de) 1995-04-12
JPH06507928A (ja) 1994-09-08

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