JPS5633806A - Preparation of rare-earth magnet - Google Patents

Preparation of rare-earth magnet

Info

Publication number
JPS5633806A
JPS5633806A JP10987579A JP10987579A JPS5633806A JP S5633806 A JPS5633806 A JP S5633806A JP 10987579 A JP10987579 A JP 10987579A JP 10987579 A JP10987579 A JP 10987579A JP S5633806 A JPS5633806 A JP S5633806A
Authority
JP
Japan
Prior art keywords
rare
earth magnet
quenching
heat treatment
preparation
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.)
Pending
Application number
JP10987579A
Other languages
Japanese (ja)
Inventor
Katsuhiko Yahagi
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 Instruments Inc
Original Assignee
Seiko Instruments Inc
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 Instruments Inc filed Critical Seiko Instruments Inc
Priority to JP10987579A priority Critical patent/JPS5633806A/en
Publication of JPS5633806A publication Critical patent/JPS5633806A/en
Pending 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
    • H01F1/0555—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 pressed, sintered or bonded together
    • H01F1/0557—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 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)

Abstract

PURPOSE:To improve a rare-earth magnet in its coercive force by quenching it after aging heat treatment. CONSTITUTION:Powder of intermetallic compounds consisting of rare-earth and other metallic elements is compression molded, sintered and solution-treated, age- heat-treated next and then quenched. When the aging heat treatment is applied twice or more, the quenching may be carried out after the second aging heat treatment. For the method of quenching, for example, a method to quench into oil at 100-400 deg.C is suitable. By so doing, the coercive force of a rare-earth magnet can be increased more.
JP10987579A 1979-08-29 1979-08-29 Preparation of rare-earth magnet Pending JPS5633806A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10987579A JPS5633806A (en) 1979-08-29 1979-08-29 Preparation of rare-earth magnet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10987579A JPS5633806A (en) 1979-08-29 1979-08-29 Preparation of rare-earth magnet

Publications (1)

Publication Number Publication Date
JPS5633806A true JPS5633806A (en) 1981-04-04

Family

ID=14521386

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10987579A Pending JPS5633806A (en) 1979-08-29 1979-08-29 Preparation of rare-earth magnet

Country Status (1)

Country Link
JP (1) JPS5633806A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS621204A (en) * 1985-03-13 1987-01-07 Hitachi Metals Ltd Manufacture of permanent magnet
EP0660338A1 (en) * 1993-12-27 1995-06-28 The Foundation: The Research Institute Of Electric And Magnetic Alloys Permanent magnet material of high coercive force Pr-Co alloy and permanent magnet material of thin film and method of manufacturing the same

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4920020A (en) * 1972-04-14 1974-02-22

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4920020A (en) * 1972-04-14 1974-02-22

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS621204A (en) * 1985-03-13 1987-01-07 Hitachi Metals Ltd Manufacture of permanent magnet
EP0660338A1 (en) * 1993-12-27 1995-06-28 The Foundation: The Research Institute Of Electric And Magnetic Alloys Permanent magnet material of high coercive force Pr-Co alloy and permanent magnet material of thin film and method of manufacturing the same

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