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GB2206241B - Method of making a permanent magnet - Google Patents

Method of making a permanent magnet

Info

Publication number
GB2206241B
GB2206241B GB8714269A GB8714269A GB2206241B GB 2206241 B GB2206241 B GB 2206241B GB 8714269 A GB8714269 A GB 8714269A GB 8714269 A GB8714269 A GB 8714269A GB 2206241 B GB2206241 B GB 2206241B
Authority
GB
United Kingdom
Prior art keywords
making
permanent magnet
permanent
magnet
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
GB8714269A
Other versions
GB2206241A (en
GB8714269D0 (en
Inventor
Koji Akioka
Osamu Kobayashi
Tatsuya Shimoda
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.)
Seiko Epson Corp
Original Assignee
Seiko Epson 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 Seiko Epson Corp filed Critical Seiko Epson Corp
Priority to GB8714269A priority Critical patent/GB2206241B/en
Publication of GB8714269D0 publication Critical patent/GB8714269D0/en
Publication of GB2206241A publication Critical patent/GB2206241A/en
Application granted granted Critical
Publication of GB2206241B publication Critical patent/GB2206241B/en
Priority to SG1692A priority patent/SG1692G/en
Priority to HK98693A priority patent/HK98693A/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
    • H01F1/057—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
    • H01F1/0576—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 pressed, e.g. hot working

Landscapes

  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Hard Magnetic Materials (AREA)
GB8714269A 1986-04-30 1987-06-18 Method of making a permanent magnet Expired - Lifetime GB2206241B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB8714269A GB2206241B (en) 1987-06-18 1987-06-18 Method of making a permanent magnet
SG1692A SG1692G (en) 1986-04-30 1992-01-08 Method of making a permanent magnet
HK98693A HK98693A (en) 1987-06-18 1993-09-23 Method of making a permanent magnet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8714269A GB2206241B (en) 1987-06-18 1987-06-18 Method of making a permanent magnet

Publications (3)

Publication Number Publication Date
GB8714269D0 GB8714269D0 (en) 1987-07-22
GB2206241A GB2206241A (en) 1988-12-29
GB2206241B true GB2206241B (en) 1990-08-15

Family

ID=10619129

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8714269A Expired - Lifetime GB2206241B (en) 1986-04-30 1987-06-18 Method of making a permanent magnet

Country Status (2)

Country Link
GB (1) GB2206241B (en)
HK (1) HK98693A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6136099A (en) * 1985-08-13 2000-10-24 Seiko Epson Corporation Rare earth-iron series permanent magnets and method of preparation
US5538565A (en) * 1985-08-13 1996-07-23 Seiko Epson Corporation Rare earth cast alloy permanent magnets and methods of preparation
IE891581A1 (en) * 1988-06-20 1991-01-02 Seiko Epson Corp Permanent magnet and a manufacturing method thereof
JP3033127B2 (en) * 1990-05-16 2000-04-17 大同特殊鋼株式会社 Rare earth magnet alloy with good hot workability
JP3084748B2 (en) * 1991-04-25 2000-09-04 セイコーエプソン株式会社 Manufacturing method of rare earth permanent magnet

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0092423A2 (en) * 1982-04-19 1983-10-26 Matsushita Electric Industrial Co., Ltd. Method for making permanent magnets of Mn-Al-C alloys
EP0092422A2 (en) * 1982-04-19 1983-10-26 Matsushita Electric Industrial Co., Ltd. Permanent Mn-Al-C alloy magnets and method for making same
US4475961A (en) * 1980-01-30 1984-10-09 At&T Bell Laboratories High remanence iron-manganese alloys for magnetically actuated devices

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4475961A (en) * 1980-01-30 1984-10-09 At&T Bell Laboratories High remanence iron-manganese alloys for magnetically actuated devices
EP0092423A2 (en) * 1982-04-19 1983-10-26 Matsushita Electric Industrial Co., Ltd. Method for making permanent magnets of Mn-Al-C alloys
EP0092422A2 (en) * 1982-04-19 1983-10-26 Matsushita Electric Industrial Co., Ltd. Permanent Mn-Al-C alloy magnets and method for making same

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
WO A 80/01857 *

Also Published As

Publication number Publication date
HK98693A (en) 1993-09-30
GB2206241A (en) 1988-12-29
GB8714269D0 (en) 1987-07-22

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Legal Events

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

Effective date: 20070617