JPS6481301A - Magnetic powder for manufacturing plastic magnet - Google Patents

Magnetic powder for manufacturing plastic magnet

Info

Publication number
JPS6481301A
JPS6481301A JP62237368A JP23736887A JPS6481301A JP S6481301 A JPS6481301 A JP S6481301A JP 62237368 A JP62237368 A JP 62237368A JP 23736887 A JP23736887 A JP 23736887A JP S6481301 A JPS6481301 A JP S6481301A
Authority
JP
Japan
Prior art keywords
magnetic powder
ambience
alloy
magnet
hardened
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
JP62237368A
Other languages
Japanese (ja)
Inventor
Takashi Furuya
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.)
Daido Steel Co Ltd
Original Assignee
Daido Steel Co Ltd
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 Daido Steel Co Ltd filed Critical Daido Steel Co Ltd
Priority to JP62237368A priority Critical patent/JPS6481301A/en
Publication of JPS6481301A publication Critical patent/JPS6481301A/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
    • H01F1/057—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
    • H01F1/0578—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 bonded together

Landscapes

  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Powder Metallurgy (AREA)
  • Hard Magnetic Materials (AREA)

Abstract

PURPOSE:To manufacture a magnet having excellent magnetic characteristic by adjusting the content of oxygen of magnetic powder for manufacturing a magnet obtained by grinding an Nd-Fe-B alloy ribbon fabricated by sudden cooling and hardening to a specified weight % or below. CONSTITUTION:The Nd-Fe-B alloy is composed of Nd of 23-33%(wt.%), B of 0.5-1.3% and remainder essentially consisting of Fe. These alloy elements are melted under the inactive ambience and are then injected onto a single roll under the room temperature, for example, from the ject caster and suddenly cooled and hardened to obtain a ribbon. In this case, the chamber is evacuated to the predetermined degree of vacuum, the ambience is replaced with the Argon ambience and such materials are cooled and hardened speedily. Content of oxygen of magnetic powder can be controlled to 0.15wt.% or less by adjusting a degree of vacuum before replacement of Argon. An alloy ribbon obtained is ground to the predetermined grain size. For instance, in the case of manufacturing plastic magnet, this magnetic powder is annealed at the temperature of 600 deg.C, it is then mixed with synthetic resin for the compression molding or injecting molding.
JP62237368A 1987-09-24 1987-09-24 Magnetic powder for manufacturing plastic magnet Pending JPS6481301A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62237368A JPS6481301A (en) 1987-09-24 1987-09-24 Magnetic powder for manufacturing plastic magnet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62237368A JPS6481301A (en) 1987-09-24 1987-09-24 Magnetic powder for manufacturing plastic magnet

Publications (1)

Publication Number Publication Date
JPS6481301A true JPS6481301A (en) 1989-03-27

Family

ID=17014354

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62237368A Pending JPS6481301A (en) 1987-09-24 1987-09-24 Magnetic powder for manufacturing plastic magnet

Country Status (1)

Country Link
JP (1) JPS6481301A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7208097B2 (en) 2001-05-15 2007-04-24 Neomax Co., Ltd. Iron-based rare earth alloy nanocomposite magnet and method for producing the same
US7217328B2 (en) 2000-11-13 2007-05-15 Neomax Co., Ltd. Compound for rare-earth bonded magnet and bonded magnet using the compound
US7261781B2 (en) 2001-11-22 2007-08-28 Neomax Co., Ltd. Nanocomposite magnet
US7297213B2 (en) 2000-05-24 2007-11-20 Neomax Co., Ltd. Permanent magnet including multiple ferromagnetic phases and method for producing the magnet
US7507302B2 (en) 2001-07-31 2009-03-24 Hitachi Metals, Ltd. Method for producing nanocomposite magnet using atomizing method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60254708A (en) * 1984-05-31 1985-12-16 Daido Steel Co Ltd Manufacture of permanent magnet
JPS6274045A (en) * 1984-04-09 1987-04-04 クル−シブル　マテリアルス　コ−ポレイシヨン Production of rare earth metal permanent magnet
JPS62133040A (en) * 1985-12-05 1987-06-16 Shin Etsu Chem Co Ltd Rare-earth permanent magnet material
JPS63197305A (en) * 1986-05-17 1988-08-16 Tokin Corp Rare-earth permanent magnet and manufacture thereof
JPS63285911A (en) * 1987-05-18 1988-11-22 Seiko Epson Corp Permanent magnet and manufacture thereof
JPS63285909A (en) * 1987-05-18 1988-11-22 Seiko Epson Corp Permanent magnet and manufacture thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6274045A (en) * 1984-04-09 1987-04-04 クル−シブル　マテリアルス　コ−ポレイシヨン Production of rare earth metal permanent magnet
JPS60254708A (en) * 1984-05-31 1985-12-16 Daido Steel Co Ltd Manufacture of permanent magnet
JPS62133040A (en) * 1985-12-05 1987-06-16 Shin Etsu Chem Co Ltd Rare-earth permanent magnet material
JPS63197305A (en) * 1986-05-17 1988-08-16 Tokin Corp Rare-earth permanent magnet and manufacture thereof
JPS63285911A (en) * 1987-05-18 1988-11-22 Seiko Epson Corp Permanent magnet and manufacture thereof
JPS63285909A (en) * 1987-05-18 1988-11-22 Seiko Epson Corp Permanent magnet and manufacture thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7297213B2 (en) 2000-05-24 2007-11-20 Neomax Co., Ltd. Permanent magnet including multiple ferromagnetic phases and method for producing the magnet
US7217328B2 (en) 2000-11-13 2007-05-15 Neomax Co., Ltd. Compound for rare-earth bonded magnet and bonded magnet using the compound
US7208097B2 (en) 2001-05-15 2007-04-24 Neomax Co., Ltd. Iron-based rare earth alloy nanocomposite magnet and method for producing the same
US7507302B2 (en) 2001-07-31 2009-03-24 Hitachi Metals, Ltd. Method for producing nanocomposite magnet using atomizing method
US7261781B2 (en) 2001-11-22 2007-08-28 Neomax Co., Ltd. Nanocomposite magnet

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