JPS5681908A - Rare earth metal intermetallic compound sintered magnet having covered surface - Google Patents

Rare earth metal intermetallic compound sintered magnet having covered surface

Info

Publication number
JPS5681908A
JPS5681908A JP14315680A JP14315680A JPS5681908A JP S5681908 A JPS5681908 A JP S5681908A JP 14315680 A JP14315680 A JP 14315680A JP 14315680 A JP14315680 A JP 14315680A JP S5681908 A JPS5681908 A JP S5681908A
Authority
JP
Japan
Prior art keywords
intermetallic compound
rare earth
earth metal
magnet
sintered 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.)
Pending
Application number
JP14315680A
Other languages
English (en)
Inventor
Itaru Okonogi
Takeshi Kobayashi
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
Suwa Seikosha KK
Takagi Industrial Co Ltd
Original Assignee
Seiko Epson Corp
Suwa Seikosha KK
Takagi Industrial 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 Seiko Epson Corp, Suwa Seikosha KK, Takagi Industrial Co Ltd filed Critical Seiko Epson Corp
Priority to JP14315680A priority Critical patent/JPS5681908A/ja
Publication of JPS5681908A publication Critical patent/JPS5681908A/ja
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0253—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets
    • H01F41/026—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets protecting methods against environmental influences, e.g. oxygen, by surface treatment
    • 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
    • H01F1/0536—Alloys characterised by their composition containing rare earth metals sintered

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Hard Magnetic Materials (AREA)
JP14315680A 1980-10-14 1980-10-14 Rare earth metal intermetallic compound sintered magnet having covered surface Pending JPS5681908A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14315680A JPS5681908A (en) 1980-10-14 1980-10-14 Rare earth metal intermetallic compound sintered magnet having covered surface

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14315680A JPS5681908A (en) 1980-10-14 1980-10-14 Rare earth metal intermetallic compound sintered magnet having covered surface

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP49136771A Division JPS5173296A (ja) 1974-11-28 1974-11-28

Publications (1)

Publication Number Publication Date
JPS5681908A true JPS5681908A (en) 1981-07-04

Family

ID=15332217

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14315680A Pending JPS5681908A (en) 1980-10-14 1980-10-14 Rare earth metal intermetallic compound sintered magnet having covered surface

Country Status (1)

Country Link
JP (1) JPS5681908A (ja)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6063901A (ja) * 1983-09-17 1985-04-12 Sumitomo Special Metals Co Ltd 耐酸化性のすぐれた永久磁石
JPS61130453A (ja) * 1984-11-28 1986-06-18 Sumitomo Special Metals Co Ltd 耐食性のすぐれた永久磁石の製造方法
EP0190461A2 (en) * 1984-12-24 1986-08-13 Sumitomo Special Metals Co., Ltd. Process for producing permanent magnets and permanent magnet
EP0244968A2 (en) * 1986-05-07 1987-11-11 Outokumpu Oy Method for the thermal treatment of sintered metal permanent magnets
JPH01166519A (ja) * 1987-12-23 1989-06-30 Seiko Epson Corp 希土類・鉄系樹脂結合型磁石
US5154978A (en) * 1989-03-22 1992-10-13 Tdk Corporation Highly corrosion-resistant rare-earth-iron magnets
EP0285990B1 (en) * 1987-03-31 1993-09-29 Seiko Epson Corporation A rare-earth permanent magnet
EP1178497A2 (en) * 2000-07-31 2002-02-06 Shin-Etsu Chemical Co., Ltd. Sintered rare earth magnets and methods of preparation therefor
WO2007077602A1 (ja) * 2005-12-28 2007-07-12 Aisin Seiki Kabushiki Kaisha 耐食性希土類磁石
US7438768B2 (en) * 2001-12-28 2008-10-21 Shin-Etsu Chemical Co., Ltd. Rare earth element sintered magnet and method for producing rare earth element sintered magnet
CN102314990A (zh) * 2010-07-08 2012-01-11 赵立文 一种磁石及其制备方法
CN108133820A (zh) * 2017-12-20 2018-06-08 赣州新瑞迪奥磁性材料有限公司 耐高温辐射取向或多极取向的钕铁硼圆环磁体的制备方法

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6063901A (ja) * 1983-09-17 1985-04-12 Sumitomo Special Metals Co Ltd 耐酸化性のすぐれた永久磁石
JPH056322B2 (ja) * 1983-09-17 1993-01-26 Sumitomo Spec Metals
JPS61130453A (ja) * 1984-11-28 1986-06-18 Sumitomo Special Metals Co Ltd 耐食性のすぐれた永久磁石の製造方法
JPH053722B2 (ja) * 1984-11-28 1993-01-18 Sumitomo Spec Metals
EP0190461A2 (en) * 1984-12-24 1986-08-13 Sumitomo Special Metals Co., Ltd. Process for producing permanent magnets and permanent magnet
US4837114A (en) * 1984-12-24 1989-06-06 Sumitomo Special Metals Co., Ltd. Process for producing magnets having improved corrosion resistance
US5316595A (en) * 1984-12-24 1994-05-31 Sumitomo Special Metals Co., Ltd. Process for producing magnets having improved corrosion resistance
EP0244968A2 (en) * 1986-05-07 1987-11-11 Outokumpu Oy Method for the thermal treatment of sintered metal permanent magnets
US4966668A (en) * 1986-05-07 1990-10-30 Outokumpu Oy Method for the treatment of metal objects
EP0285990B1 (en) * 1987-03-31 1993-09-29 Seiko Epson Corporation A rare-earth permanent magnet
JPH01166519A (ja) * 1987-12-23 1989-06-30 Seiko Epson Corp 希土類・鉄系樹脂結合型磁石
US5154978A (en) * 1989-03-22 1992-10-13 Tdk Corporation Highly corrosion-resistant rare-earth-iron magnets
EP1178497A2 (en) * 2000-07-31 2002-02-06 Shin-Etsu Chemical Co., Ltd. Sintered rare earth magnets and methods of preparation therefor
EP1178497A3 (en) * 2000-07-31 2003-02-05 Shin-Etsu Chemical Co., Ltd. Sintered rare earth magnets and methods of preparation therefor
US6623541B2 (en) 2000-07-31 2003-09-23 Shin-Etsu Chemical Co., Ltd. Sintered rare earth magnet and making method
US7438768B2 (en) * 2001-12-28 2008-10-21 Shin-Etsu Chemical Co., Ltd. Rare earth element sintered magnet and method for producing rare earth element sintered magnet
WO2007077602A1 (ja) * 2005-12-28 2007-07-12 Aisin Seiki Kabushiki Kaisha 耐食性希土類磁石
JPWO2007077602A1 (ja) * 2005-12-28 2009-06-04 アイシン精機株式会社 耐食性希土類磁石
CN102314990A (zh) * 2010-07-08 2012-01-11 赵立文 一种磁石及其制备方法
CN108133820A (zh) * 2017-12-20 2018-06-08 赣州新瑞迪奥磁性材料有限公司 耐高温辐射取向或多极取向的钕铁硼圆环磁体的制备方法

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