EP0260870A3 - Aimant du type métal lié pour polymère comprenant des particules métalliques résistant à la corrosion - Google Patents

Aimant du type métal lié pour polymère comprenant des particules métalliques résistant à la corrosion Download PDF

Info

Publication number
EP0260870A3
EP0260870A3 EP87307965A EP87307965A EP0260870A3 EP 0260870 A3 EP0260870 A3 EP 0260870A3 EP 87307965 A EP87307965 A EP 87307965A EP 87307965 A EP87307965 A EP 87307965A EP 0260870 A3 EP0260870 A3 EP 0260870A3
Authority
EP
European Patent Office
Prior art keywords
corrosion resistant
magnet
metal particles
polymeric
polymeric bonded
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Withdrawn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
EP87307965A
Other languages
German (de)
English (en)
Other versions
EP0260870A2 (fr
Inventor
David M. Hopstock
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.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing Co
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 Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Publication of EP0260870A2 publication Critical patent/EP0260870A2/fr
Publication of EP0260870A3 publication Critical patent/EP0260870A3/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F10/00—Thin magnetic films, e.g. of one-domain structure
    • H01F10/08—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers
    • H01F10/10—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition
    • H01F10/12—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition being metals or alloys
    • 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
    • H01F1/047—Alloys characterised by their composition
    • H01F1/053—Alloys characterised by their composition containing rare earth metals
    • H01F1/055—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
    • H01F1/057—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
    • H01F1/0571—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes
    • H01F1/0572—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes with a protective layer
    • 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
    • H01F1/047—Alloys characterised by their composition
    • H01F1/053—Alloys characterised by their composition containing rare earth metals
    • H01F1/055—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
    • H01F1/0555—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 pressed, sintered or bonded together
    • H01F1/0558—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 pressed, sintered or bonded together bonded together
    • 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
    • H01F1/047—Alloys characterised by their composition
    • H01F1/053—Alloys characterised by their composition containing rare earth metals
    • H01F1/055—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
    • H01F1/057—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
    • H01F1/0571—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes
    • H01F1/0575—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together
    • H01F1/0578—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together bonded together

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Hard Magnetic Materials (AREA)
  • Powder Metallurgy (AREA)
  • Paints Or Removers (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
EP87307965A 1986-09-12 1987-09-09 Aimant du type métal lié pour polymère comprenant des particules métalliques résistant à la corrosion Withdrawn EP0260870A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US90681986A 1986-09-12 1986-09-12
US906819 1986-09-12

Publications (2)

Publication Number Publication Date
EP0260870A2 EP0260870A2 (fr) 1988-03-23
EP0260870A3 true EP0260870A3 (fr) 1989-04-19

Family

ID=25423037

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87307965A Withdrawn EP0260870A3 (fr) 1986-09-12 1987-09-09 Aimant du type métal lié pour polymère comprenant des particules métalliques résistant à la corrosion

Country Status (3)

Country Link
EP (1) EP0260870A3 (fr)
JP (1) JPS6376801A (fr)
KR (1) KR880004508A (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5173206A (en) * 1987-12-14 1992-12-22 The B. F. Goodrich Company Passivated rare earth magnet or magnetic material compositions
US5278377A (en) * 1991-11-27 1994-01-11 Minnesota Mining And Manufacturing Company Electromagnetic radiation susceptor material employing ferromagnetic amorphous alloy particles
US6468678B1 (en) 1994-11-17 2002-10-22 3M Innovative Properties Company Conformable magnetic articles for use with traffic bearing surfaces methods of making same systems including same and methods of use
PT818126E (pt) * 1995-03-29 2000-09-29 Minnesota Mining & Mfg Composito absorvedor de energia electromagnetica
US5764060A (en) * 1996-03-11 1998-06-09 Minnesota Mining And Manufacturing Company Guidance system for a moving person
US6217252B1 (en) 1998-08-11 2001-04-17 3M Innovative Properties Company Wear-resistant transportation surface marking method and materials
JP3882545B2 (ja) * 2000-11-13 2007-02-21 住友金属鉱山株式会社 高耐候性磁石粉及びこれを用いた磁石
US20030123930A1 (en) 2001-12-31 2003-07-03 Jacobs Gregory F. Matrix element magnetic pavement marker and method of making same
DE102015223542A1 (de) * 2015-11-27 2017-06-01 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Verfahren zur Anreicherung eines Elementes an den Korngrenzen eines magnetischen zwei- oder mehrphasigen Systems
WO2018096733A1 (fr) * 2016-11-28 2018-05-31 国立大学法人東北大学 Poudre magnétique de système terre rare-fer-azote et procédé de production d'une telle poudre magnétique
JP6963251B2 (ja) * 2016-11-28 2021-11-05 国立大学法人東北大学 希土類鉄窒素系磁性粉末
JP6865437B2 (ja) * 2017-08-18 2021-04-28 国立大学法人東北大学 皮膜付磁石合金粉の製造方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3932293A (en) * 1972-05-22 1976-01-13 Minnesota Mining And Manufacturing Company Metallic ferromagnetic particles for use in environmentally stable magnetic recording media
EP0043921A1 (fr) * 1980-07-15 1982-01-20 BASF Aktiengesellschaft Particules métalliques ferromagnétiques constituées essentiellement de fer ayant une couche de revêtement superficiel, procédé pour leur préparation ainsi que leur utilisation pour la fabrication des supports d'enregistrement magnétiques
EP0190461A2 (fr) * 1984-12-24 1986-08-13 Sumitomo Special Metals Co., Ltd. Procédé pour la fabrication d'aimants permanents et aimant permanent

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3932293A (en) * 1972-05-22 1976-01-13 Minnesota Mining And Manufacturing Company Metallic ferromagnetic particles for use in environmentally stable magnetic recording media
EP0043921A1 (fr) * 1980-07-15 1982-01-20 BASF Aktiengesellschaft Particules métalliques ferromagnétiques constituées essentiellement de fer ayant une couche de revêtement superficiel, procédé pour leur préparation ainsi que leur utilisation pour la fabrication des supports d'enregistrement magnétiques
EP0190461A2 (fr) * 1984-12-24 1986-08-13 Sumitomo Special Metals Co., Ltd. Procédé pour la fabrication d'aimants permanents et aimant permanent

Also Published As

Publication number Publication date
JPS6376801A (ja) 1988-04-07
KR880004508A (ko) 1988-06-04
EP0260870A2 (fr) 1988-03-23

Similar Documents

Publication Publication Date Title
EP0260870A3 (fr) Aimant du type métal lié pour polymère comprenant des particules métalliques résistant à la corrosion
EP0179039A3 (en) Polymer coated particles having immobilized metal ions on the surfaces thereof
DE3783413D1 (de) Verfahren zur herstellung eines seltenerd-eisen-bor-dauermagneten mit hilfe eines abgeschreckten legierungspuders.
JPS57210934A (en) Highly magnetic rare earth-transition metal magnet
AU529576B2 (en) Iron alloy powder for electromagnetic applications
EP0259194A3 (fr) Formation d'un film de ferrite
CA2051545A1 (fr) Aimant permanent a grande resistance a la corrosion, procede de fabrication de cet aimant et procede de fabrication d'un aimant lie a grande resistance a la corrosion
EP0111331A3 (en) Dye-coated metal powders and plastic magnets impregnated with a dye-coated metallic magnet powder
EP0612974A3 (fr) Indicateur magnétique d'angle.
AU562978B2 (en) Chromate layer on mechanically zn plated iron materials
AU1173083A (en) Coated valve metal anode
ES8706725A1 (es) Un procedimiento para la preparacion de nuevos derivados glicopepticos
GB2112232B (en) Switching apparatus for changing the absolute value and the permanent magnetization direction of ferromagnetic bodies, e.g. of permanent magnets
EP0344838A3 (fr) Matériaux composites convenant au blindage magnétique et électronique, ainsi qu'aux aimants permanents
AU571485B2 (en) Metal oxide coated ion exchange resin particles
ES8700678A1 (es) Procedimiento para la preparacion de agente aglutinante del tipo de resina fenolica
AU8805382A (en) Electromagnetic valve assembly
MY116290A (en) Magnetic-abrasive powder, and method of producing the same.
EP0244968A3 (en) Method for the thermal treatment of sintered metal permanent magnets
ES535314A0 (es) Procedimiento para fosfatar una superficie metalica basada en hierro o zinc
DE68907303D1 (de) Magnetisches pulvermetall mit kohlenstoff.
JPS5797354A (en) Magnet rotor
EP0399148A3 (fr) Procédé de production de poudres polycondensées à base d'oxyde de métal
JPS6415301A (en) Rare earth metal-iron group alloy powder for resin combination type permanent magnet having excellent corrosion resistance
JPS5739102A (en) Production of permanent magnet

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE FR GB IT NL

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE FR GB IT NL

17P Request for examination filed

Effective date: 19890927

17Q First examination report despatched

Effective date: 19910822

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19920103

RIN1 Information on inventor provided before grant (corrected)

Inventor name: HOPSTOCK,DAVID M.