GB2310432B - Production method production apparatus and heat treatment apparatus for anisotropic magnet powder - Google Patents

Production method production apparatus and heat treatment apparatus for anisotropic magnet powder

Info

Publication number
GB2310432B
GB2310432B GB9603878A GB9603878A GB2310432B GB 2310432 B GB2310432 B GB 2310432B GB 9603878 A GB9603878 A GB 9603878A GB 9603878 A GB9603878 A GB 9603878A GB 2310432 B GB2310432 B GB 2310432B
Authority
GB
United Kingdom
Prior art keywords
heat treatment
magnet powder
anisotropic magnet
production method
production
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 - Lifetime
Application number
GB9603878A
Other versions
GB9603878D0 (en
GB2310432A (en
Inventor
Yoshinobu Honkura
Hironari Mitarai
Takenobu Yoshimatsu
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.)
Aichi Steel Corp
Original Assignee
Aichi Steel 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 Aichi Steel Corp filed Critical Aichi Steel Corp
Priority to GB9603878A priority Critical patent/GB2310432B/en
Priority to DE19607747A priority patent/DE19607747C2/en
Publication of GB9603878D0 publication Critical patent/GB9603878D0/en
Publication of GB2310432A publication Critical patent/GB2310432A/en
Application granted granted Critical
Publication of GB2310432B publication Critical patent/GB2310432B/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01F1/0553—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 obtained by reduction or by hydrogen decrepitation or embrittlement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/02—Making metallic powder or suspensions thereof using physical processes
    • B22F9/023—Hydrogen absorption
    • 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
    • H01F1/0573—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 obtained by reduction or by hydrogen decrepitation or embrittlement
    • 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
    • H01F1/059—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and Va elements, e.g. Sm2Fe17N2
    • H01F1/0593—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and Va elements, e.g. Sm2Fe17N2 of tetragonal ThMn12-structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
    • H01M4/383—Hydrogen absorbing alloys
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Landscapes

  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Hard Magnetic Materials (AREA)
GB9603878A 1996-02-23 1996-02-23 Production method production apparatus and heat treatment apparatus for anisotropic magnet powder Expired - Lifetime GB2310432B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB9603878A GB2310432B (en) 1996-02-23 1996-02-23 Production method production apparatus and heat treatment apparatus for anisotropic magnet powder
DE19607747A DE19607747C2 (en) 1996-02-23 1996-02-29 Manufacturing method, manufacturing device and heat treatment device for anisotropic magnetic powder

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9603878A GB2310432B (en) 1996-02-23 1996-02-23 Production method production apparatus and heat treatment apparatus for anisotropic magnet powder
DE19607747A DE19607747C2 (en) 1996-02-23 1996-02-29 Manufacturing method, manufacturing device and heat treatment device for anisotropic magnetic powder

Publications (3)

Publication Number Publication Date
GB9603878D0 GB9603878D0 (en) 1996-04-24
GB2310432A GB2310432A (en) 1997-08-27
GB2310432B true GB2310432B (en) 1998-05-27

Family

ID=26023353

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9603878A Expired - Lifetime GB2310432B (en) 1996-02-23 1996-02-23 Production method production apparatus and heat treatment apparatus for anisotropic magnet powder

Country Status (2)

Country Link
DE (1) DE19607747C2 (en)
GB (1) GB2310432B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2881409B2 (en) * 1996-10-28 1999-04-12 愛知製鋼株式会社 Method for producing anisotropic magnet powder
JP3120172B2 (en) * 1997-12-22 2000-12-25 愛知製鋼株式会社 Equipment for manufacturing rare earth magnet powder
CN114974775B (en) * 2022-06-09 2024-09-13 钢铁研究总院有限公司 Rare earth cobalt magnetic powder with strong hydrogen absorption capacity and preparation method thereof

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0047353A1 (en) * 1980-09-05 1982-03-17 Ivo Coppa A process and system for drying products and materials, such as wood
GB2094961A (en) * 1981-02-13 1982-09-22 Perlino Antonio Drying apparatus
GB2194029A (en) * 1986-07-01 1988-02-24 Andrews Group Plc Drying grain
GB2258468A (en) * 1991-08-09 1993-02-10 Minch Norton Dev Ltd A method and apparatus for producing malt
EP0545644A1 (en) * 1991-11-28 1993-06-09 Mitsubishi Materials Corporation Method for heat treating metallic materials and apparatus therefor
EP0546799A1 (en) * 1991-12-10 1993-06-16 Mitsubishi Materials Corporation Method for producing rare earth alloy magnet powder
GB2263969A (en) * 1992-02-05 1993-08-11 Toshiba Kk Drying utensils

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5143560A (en) * 1990-04-20 1992-09-01 Hitachi Metals, Inc., Ltd. Method for forming Fe-B-R-T alloy powder by hydrogen decrepitation of die-upset billets
US5127970A (en) * 1991-05-21 1992-07-07 Crucible Materials Corporation Method for producing rare earth magnet particles of improved coercivity
JP2838617B2 (en) * 1991-12-20 1998-12-16 住友特殊金属株式会社 Method for producing alloy powder for rare earth permanent magnet
JP2838616B2 (en) * 1991-12-20 1998-12-16 住友特殊金属株式会社 Method for producing alloy powder for rare earth permanent magnet

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0047353A1 (en) * 1980-09-05 1982-03-17 Ivo Coppa A process and system for drying products and materials, such as wood
GB2094961A (en) * 1981-02-13 1982-09-22 Perlino Antonio Drying apparatus
GB2194029A (en) * 1986-07-01 1988-02-24 Andrews Group Plc Drying grain
GB2258468A (en) * 1991-08-09 1993-02-10 Minch Norton Dev Ltd A method and apparatus for producing malt
EP0545644A1 (en) * 1991-11-28 1993-06-09 Mitsubishi Materials Corporation Method for heat treating metallic materials and apparatus therefor
EP0546799A1 (en) * 1991-12-10 1993-06-16 Mitsubishi Materials Corporation Method for producing rare earth alloy magnet powder
GB2263969A (en) * 1992-02-05 1993-08-11 Toshiba Kk Drying utensils

Also Published As

Publication number Publication date
GB9603878D0 (en) 1996-04-24
DE19607747C2 (en) 1998-03-12
GB2310432A (en) 1997-08-27
DE19607747A1 (en) 1997-09-04

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Expiry date: 20160222