DE3928389A1 - Permanentmagnet - Google Patents

Permanentmagnet

Info

Publication number
DE3928389A1
DE3928389A1 DE3928389A DE3928389A DE3928389A1 DE 3928389 A1 DE3928389 A1 DE 3928389A1 DE 3928389 A DE3928389 A DE 3928389A DE 3928389 A DE3928389 A DE 3928389A DE 3928389 A1 DE3928389 A1 DE 3928389A1
Authority
DE
Germany
Prior art keywords
permanent magnet
rare earth
magnetic
proportion
alloy powder
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.)
Granted
Application number
DE3928389A
Other languages
German (de)
English (en)
Other versions
DE3928389C2 (enExample
Inventor
Sevi Gaifti
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.)
SCHRAMBERG MAGNETFAB
Original Assignee
SCHRAMBERG MAGNETFAB
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6388032&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE3928389(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by SCHRAMBERG MAGNETFAB filed Critical SCHRAMBERG MAGNETFAB
Priority to DE3928389A priority Critical patent/DE3928389A1/de
Priority to AT90912788T priority patent/ATE99450T1/de
Priority to JP2512098A priority patent/JPH05500134A/ja
Priority to PCT/DE1990/000653 priority patent/WO1991003823A1/de
Priority to EP90912788A priority patent/EP0489784B1/de
Priority to DE90912788T priority patent/DE59004054D1/de
Publication of DE3928389A1 publication Critical patent/DE3928389A1/de
Application granted granted Critical
Publication of DE3928389C2 publication Critical patent/DE3928389C2/de
Granted 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
    • H01F1/032—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
    • H01F1/058—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IVa elements, e.g. Gd2Fe14C
    • 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
    • H01F1/0577—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 sintered

Landscapes

  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Hard Magnetic Materials (AREA)
  • Powder Metallurgy (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
DE3928389A 1989-08-28 1989-08-28 Permanentmagnet Granted DE3928389A1 (de)

Priority Applications (6)

Application Number Priority Date Filing Date Title
DE3928389A DE3928389A1 (de) 1989-08-28 1989-08-28 Permanentmagnet
AT90912788T ATE99450T1 (de) 1989-08-28 1990-08-27 Permanentmagnet.
JP2512098A JPH05500134A (ja) 1989-08-28 1990-08-27 永久磁石
PCT/DE1990/000653 WO1991003823A1 (de) 1989-08-28 1990-08-27 Permanentmagnet
EP90912788A EP0489784B1 (de) 1989-08-28 1990-08-27 Permanentmagnet
DE90912788T DE59004054D1 (de) 1989-08-28 1990-08-27 Permanentmagnet.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3928389A DE3928389A1 (de) 1989-08-28 1989-08-28 Permanentmagnet

Publications (2)

Publication Number Publication Date
DE3928389A1 true DE3928389A1 (de) 1991-03-14
DE3928389C2 DE3928389C2 (enExample) 1993-01-07

Family

ID=6388032

Family Applications (2)

Application Number Title Priority Date Filing Date
DE3928389A Granted DE3928389A1 (de) 1989-08-28 1989-08-28 Permanentmagnet
DE90912788T Expired - Fee Related DE59004054D1 (de) 1989-08-28 1990-08-27 Permanentmagnet.

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE90912788T Expired - Fee Related DE59004054D1 (de) 1989-08-28 1990-08-27 Permanentmagnet.

Country Status (4)

Country Link
EP (1) EP0489784B1 (enExample)
JP (1) JPH05500134A (enExample)
DE (2) DE3928389A1 (enExample)
WO (1) WO1991003823A1 (enExample)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0594309A1 (en) * 1992-10-19 1994-04-27 Inland Steel Company Non-uniaxial permanent magnet material
WO2002013209A3 (en) * 2000-08-03 2002-08-22 Sanei Kasei Co Ltd Nanocomposite permanent magnet

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5147473A (en) * 1989-08-25 1992-09-15 Dowa Mining Co., Ltd. Permanent magnet alloy having improved resistance to oxidation and process for production thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3637521A1 (de) * 1986-11-04 1988-05-11 Schramberg Magnetfab Permanentmagnet und verfahren zu seiner herstellung
EP0106948B1 (en) * 1982-09-27 1989-01-25 Sumitomo Special Metals Co., Ltd. Permanently magnetizable alloys, magnetic materials and permanent magnets comprising febr or (fe,co)br (r=vave earth)
EP0320064A1 (en) * 1987-12-11 1989-06-14 Koninklijke Philips Electronics N.V. Hard magnetic material of a rare earth metal, iron and carbon
EP0101552B1 (en) * 1982-08-21 1989-08-09 Sumitomo Special Metals Co., Ltd. Magnetic materials, permanent magnets and methods of making those

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59132105A (ja) * 1983-01-19 1984-07-30 Sumitomo Special Metals Co Ltd 永久磁石用合金
JP2537189B2 (ja) * 1985-10-25 1996-09-25 株式会社東芝 永久磁石
US4849035A (en) * 1987-08-11 1989-07-18 Crucible Materials Corporation Rare earth, iron carbon permanent magnet alloys and method for producing the same
JPH01169904A (ja) * 1987-12-24 1989-07-05 Taiyo Yuden Co Ltd 永久磁石およびその製造方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0101552B1 (en) * 1982-08-21 1989-08-09 Sumitomo Special Metals Co., Ltd. Magnetic materials, permanent magnets and methods of making those
EP0106948B1 (en) * 1982-09-27 1989-01-25 Sumitomo Special Metals Co., Ltd. Permanently magnetizable alloys, magnetic materials and permanent magnets comprising febr or (fe,co)br (r=vave earth)
DE3637521A1 (de) * 1986-11-04 1988-05-11 Schramberg Magnetfab Permanentmagnet und verfahren zu seiner herstellung
EP0320064A1 (en) * 1987-12-11 1989-06-14 Koninklijke Philips Electronics N.V. Hard magnetic material of a rare earth metal, iron and carbon

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
J. Appl. Phys., 57 (1985), S. 4097-4099 *
J. of the Less-Common Metals, 141, (1988), S. L15-L18 *
J.Appl.Phys., 61 (1987), S. 3574-3576 *
Journal de Physique, Vol. 46(1985), S. C6-305 bis C6-308 *
Journal of Magnetism and Magnetic Materials, Vol. 80(1989), S. 31-36 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0594309A1 (en) * 1992-10-19 1994-04-27 Inland Steel Company Non-uniaxial permanent magnet material
US5403408A (en) * 1992-10-19 1995-04-04 Inland Steel Company Non-uniaxial permanent magnet material
WO2002013209A3 (en) * 2000-08-03 2002-08-22 Sanei Kasei Co Ltd Nanocomposite permanent magnet

Also Published As

Publication number Publication date
JPH05500134A (ja) 1993-01-14
EP0489784A1 (de) 1992-06-17
DE3928389C2 (enExample) 1993-01-07
DE59004054D1 (de) 1994-02-10
WO1991003823A1 (de) 1991-03-21
EP0489784B1 (de) 1993-12-29

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8381 Inventor (new situation)

Free format text: GAIFFI, SEVI, 7234 AICHHALDEN, DE

8363 Opposition against the patent
8331 Complete revocation
8325 Change of the main classification

Ipc: H01F 1/055