GB1330791A - Method of manufacturing a permanent magnet - Google Patents

Method of manufacturing a permanent magnet

Info

Publication number
GB1330791A
GB1330791A GB81271A GB81271A GB1330791A GB 1330791 A GB1330791 A GB 1330791A GB 81271 A GB81271 A GB 81271A GB 81271 A GB81271 A GB 81271A GB 1330791 A GB1330791 A GB 1330791A
Authority
GB
United Kingdom
Prior art keywords
tube
permanent magnet
compound
jan
furnace
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
Application number
GB81271A
Other languages
English (en)
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.)
BBC BROWN BOVERI and CIE
BBC Brown Boveri AG Switzerland
Original Assignee
BBC BROWN BOVERI and CIE
BBC Brown Boveri AG Switzerland
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 BBC BROWN BOVERI and CIE, BBC Brown Boveri AG Switzerland filed Critical BBC BROWN BOVERI and CIE
Publication of GB1330791A publication Critical patent/GB1330791A/en
Expired 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
    • C—CHEMISTRY; METALLURGY
    • C30—CRYSTAL GROWTH
    • C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B29/00—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
    • C30B29/10—Inorganic compounds or compositions
    • C30B29/52—Alloys
    • C—CHEMISTRY; METALLURGY
    • C30—CRYSTAL GROWTH
    • C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B33/00—After-treatment of single crystals or homogeneous polycrystalline material with defined structure

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Power Engineering (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
  • Hard Magnetic Materials (AREA)
GB81271A 1970-01-09 1971-01-07 Method of manufacturing a permanent magnet Expired GB1330791A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH24370A CH519770A (de) 1970-01-09 1970-01-09 Verfahren zur Herstellung eines Dauermagneten

Publications (1)

Publication Number Publication Date
GB1330791A true GB1330791A (en) 1973-09-19

Family

ID=4182551

Family Applications (1)

Application Number Title Priority Date Filing Date
GB81271A Expired GB1330791A (en) 1970-01-09 1971-01-07 Method of manufacturing a permanent magnet

Country Status (4)

Country Link
CH (1) CH519770A (cg-RX-API-DMAC7.html)
DE (1) DE2017234A1 (cg-RX-API-DMAC7.html)
FR (1) FR2076007A1 (cg-RX-API-DMAC7.html)
GB (1) GB1330791A (cg-RX-API-DMAC7.html)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2631781A1 (de) * 1975-07-18 1977-01-20 Fujitsu Ltd Permanentmagnet und verfahren zur herstellung desselben
US6210495B1 (en) 1996-05-06 2001-04-03 Centre National De La Recherche Scientifique Method for preparing a rare earth- and transition metal-based magnetically anisotropic material by solidifying a liquid alloy in a guiding field

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH601481A5 (cg-RX-API-DMAC7.html) * 1975-05-05 1978-07-14 Far Fab Assortiments Reunies
US4208225A (en) * 1975-05-05 1980-06-17 Les Fabriques D'assortiments Reunies Directionally solidified ductile magnetic alloys magnetically hardened by precipitation hardening
CH616777A5 (cg-RX-API-DMAC7.html) * 1975-09-23 1980-04-15 Bbc Brown Boveri & Cie
US4135953A (en) * 1975-09-23 1979-01-23 Bbc Brown, Boveri & Company, Limited Permanent magnet and method of making it
EP0018942B1 (en) * 1979-04-12 1984-07-04 Les Fabriques d'Assortiments Réunies Ductile magnetic alloys, method of making same and magnetic body

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2631781A1 (de) * 1975-07-18 1977-01-20 Fujitsu Ltd Permanentmagnet und verfahren zur herstellung desselben
US6210495B1 (en) 1996-05-06 2001-04-03 Centre National De La Recherche Scientifique Method for preparing a rare earth- and transition metal-based magnetically anisotropic material by solidifying a liquid alloy in a guiding field

Also Published As

Publication number Publication date
DE2017234A1 (de) 1971-07-15
FR2076007A1 (cg-RX-API-DMAC7.html) 1971-10-15
CH519770A (de) 1972-02-29

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees