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DE60106695D1 - Auf Seltenerden basierender Dauermagnet mit korrosionsfestem Film und zugehöriges Herstellungsverfahren - Google Patents

Auf Seltenerden basierender Dauermagnet mit korrosionsfestem Film und zugehöriges Herstellungsverfahren

Info

Publication number
DE60106695D1
DE60106695D1 DE60106695T DE60106695T DE60106695D1 DE 60106695 D1 DE60106695 D1 DE 60106695D1 DE 60106695 T DE60106695 T DE 60106695T DE 60106695 T DE60106695 T DE 60106695T DE 60106695 D1 DE60106695 D1 DE 60106695D1
Authority
DE
Germany
Prior art keywords
permanent magnet
manufacturing process
rare earth
corrosion resistant
resistant film
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
DE60106695T
Other languages
English (en)
Other versions
DE60106695T2 (de
Inventor
Atsushi Kikugawa
Fumiaki Kikui
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.)
Proterial Ltd
Original Assignee
Neomax 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 Neomax Co Ltd filed Critical Neomax Co Ltd
Publication of DE60106695D1 publication Critical patent/DE60106695D1/de
Application granted granted Critical
Publication of DE60106695T2 publication Critical patent/DE60106695T2/de
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
    • 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
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/90—Magnetic feature
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12465—All metal or with adjacent metals having magnetic properties, or preformed fiber orientation coordinate with shape
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31678—Of metal

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
  • Hard Magnetic Materials (AREA)
DE2001606695 2000-08-11 2001-08-09 Auf einem Seltenerdmetall basierender Permanentmagnet mit einem korrosionsbeständigen Film und Verfahren zu seiner Herstellung Expired - Lifetime DE60106695T2 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2000245410 2000-08-11
JP2000245410 2000-08-11
JP2000315776 2000-10-16
JP2000315776 2000-10-16

Publications (2)

Publication Number Publication Date
DE60106695D1 true DE60106695D1 (de) 2004-12-02
DE60106695T2 DE60106695T2 (de) 2005-03-31

Family

ID=26597918

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2001606695 Expired - Lifetime DE60106695T2 (de) 2000-08-11 2001-08-09 Auf einem Seltenerdmetall basierender Permanentmagnet mit einem korrosionsbeständigen Film und Verfahren zu seiner Herstellung

Country Status (4)

Country Link
US (2) US6884513B2 (de)
EP (1) EP1180771B1 (de)
CN (1) CN1193384C (de)
DE (1) DE60106695T2 (de)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US7208056B2 (en) * 2004-02-10 2007-04-24 Tdk Corporation Rare earth sintered magnet, and method for improving mechanical strength and corrosion resistance thereof
US9005780B2 (en) * 2004-03-26 2015-04-14 Tdk Corporation Rare earth magnet, method for producing same and method for producing multilayer body
KR100841545B1 (ko) * 2004-03-31 2008-06-26 티디케이가부시기가이샤 희토류 자석 및 이의 제조방법
JP3784400B1 (ja) * 2005-05-27 2006-06-07 日本パーカライジング株式会社 金属用化成処理液および処理方法
GB2430682A (en) * 2005-09-30 2007-04-04 Univ Loughborough Insulated magnetic particulate material
CN100357490C (zh) * 2005-10-19 2007-12-26 哈尔滨工业大学 提高轻金属及其复合材料表面耐蚀性的稀土转化膜方法
US7504754B2 (en) * 2005-10-31 2009-03-17 Caterpillar Inc. Rotor having multiple permanent-magnet pieces in a cavity
US7436095B2 (en) * 2005-10-31 2008-10-14 Caterpillar Inc. Rotary electric machine
US7436096B2 (en) * 2005-10-31 2008-10-14 Caterpillar Inc. Rotor having permanent magnets and axialy-extending channels
JP4830024B2 (ja) * 2007-11-02 2011-12-07 旭化成株式会社 磁石用複合磁性材料、及びその製造方法
US7781932B2 (en) 2007-12-31 2010-08-24 General Electric Company Permanent magnet assembly and method of manufacturing same
US8641833B2 (en) * 2008-07-04 2014-02-04 Hitachi Metals, Ltd. Corrosion-resistant magnet and method for producing the same
US20120299676A1 (en) * 2009-12-28 2012-11-29 Hitachi Metals, Ltd. Corrosion-resistant magnet and method for producing the same
CN102114536B (zh) * 2010-01-05 2015-05-20 北京中科三环高技术股份有限公司 提高渗镀氟化物的稀土永磁材料表面的耐蚀性的方法
EP2624266B1 (de) * 2010-09-30 2020-08-26 Hitachi Metals, Ltd. Verfahren zur bildung eines elektrischen kupferplattierungsfilms auf der oberfläche eines seltenerd-permanentmagneten
US10011754B2 (en) * 2013-01-23 2018-07-03 Basf Se Method of improving nitrate salt compositions by means of nitric acid for use as heat transfer medium or heat storage medium
CN103093921B (zh) 2013-01-29 2016-08-24 烟台首钢磁性材料股份有限公司 一种r-t-b-m-c系烧结磁铁及其制造方法及专用装置
CN104480475A (zh) 2014-11-04 2015-04-01 烟台首钢磁性材料股份有限公司 钕铁硼磁体表面硬质铝膜层的制备方法
BR112018072083B1 (pt) * 2016-04-28 2023-04-18 Basf Se Processo para o primeiro arranque de um aparelho

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3176597B2 (ja) * 1998-09-10 2001-06-18 住友特殊金属株式会社 耐食性永久磁石およびその製造方法
JP2001076914A (ja) * 1998-12-17 2001-03-23 Sumitomo Special Metals Co Ltd 希土類系永久磁石およびその製造方法
JP2000199074A (ja) * 1998-12-28 2000-07-18 Nippon Parkerizing Co Ltd 希土類・鉄系焼結永久磁石の沈着型表面処理液および表面処理方法、ならびに該表面処理方法により得られた表面を有する希土類・鉄系焼結永久磁石

Also Published As

Publication number Publication date
US20020036029A1 (en) 2002-03-28
EP1180771A3 (de) 2003-01-15
CN1193384C (zh) 2005-03-16
US20030136471A1 (en) 2003-07-24
US6884513B2 (en) 2005-04-26
DE60106695T2 (de) 2005-03-31
EP1180771B1 (de) 2004-10-27
US6878217B2 (en) 2005-04-12
CN1338761A (zh) 2002-03-06
EP1180771A2 (de) 2002-02-20

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Legal Events

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