CN102084438B - 耐腐蚀性磁铁及其制造方法 - Google Patents

耐腐蚀性磁铁及其制造方法 Download PDF

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Publication number
CN102084438B
CN102084438B CN2009801255950A CN200980125595A CN102084438B CN 102084438 B CN102084438 B CN 102084438B CN 2009801255950 A CN2009801255950 A CN 2009801255950A CN 200980125595 A CN200980125595 A CN 200980125595A CN 102084438 B CN102084438 B CN 102084438B
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magnet
chemical conversion
overlay film
conversion overlay
corrosion resistance
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Chinese (zh)
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CN102084438A (zh
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新苗稔展
吉村公志
上山幸嗣
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Hitachi Ltd
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Hitachi Metals Ltd
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    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/24—After-treatment of workpieces or articles
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/02—Making ferrous alloys by powder metallurgy
    • C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
    • C22C33/0278—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5%
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
    • C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
    • C23C22/34—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing fluorides or complex fluorides
    • 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
    • H01F1/0577—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 sintered
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/02—Permanent magnets [PM]
    • H01F7/0205—Magnetic circuits with PM in general
    • H01F7/0221—Mounting means for PM, supporting, coating, encapsulating PM
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/24—After-treatment of workpieces or articles
    • B22F2003/241—Chemical after-treatment on the surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2207/00—Aspects of the compositions, gradients
    • B22F2207/01—Composition gradients
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C2202/00—Physical properties
    • C22C2202/02—Magnetic
    • 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

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Manufacturing & Machinery (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Electromagnetism (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Hard Magnetic Materials (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
  • Powder Metallurgy (AREA)
  • Chemical Treatment Of Metals (AREA)
CN2009801255950A 2008-07-04 2009-06-30 耐腐蚀性磁铁及其制造方法 Active CN102084438B (zh)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP2008176033 2008-07-04
JP2008-176029 2008-07-04
JP2008-176033 2008-07-04
JP2008176029 2008-07-04
PCT/JP2009/061913 WO2010001878A2 (ja) 2008-07-04 2009-06-30 耐食性磁石およびその製造方法

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CN102084438A CN102084438A (zh) 2011-06-01
CN102084438B true CN102084438B (zh) 2012-11-21

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US (2) US8641833B2 (enExample)
EP (1) EP2299455B1 (enExample)
JP (2) JP4586937B2 (enExample)
CN (1) CN102084438B (enExample)
WO (1) WO2010001878A2 (enExample)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102714081B (zh) * 2009-12-28 2015-11-25 日立金属株式会社 耐腐蚀性磁铁及其制造方法
JP5573663B2 (ja) * 2010-12-27 2014-08-20 日立金属株式会社 耐食性磁石の製造方法
EP3088571B1 (en) * 2015-04-28 2021-06-02 The Boeing Company Environmentally friendly aluminum coatings as sacrificial coatings for high strength steel alloys
KR102398932B1 (ko) 2018-08-31 2022-05-16 주식회사 엘지화학 자석 분말의 제조 방법 및 자석 분말
US12230438B2 (en) 2020-11-18 2025-02-18 Nichia Corporation Compound for bonded magnet, bonded magnet, method of producing same, and resin composition for bonded magnets

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1259754A (zh) * 1998-12-17 2000-07-12 住友特殊金属株式会社 稀土金属永磁体及其生产方法
CN1516751A (zh) * 2001-06-15 2004-07-28 �ձ�������ʽ���� 金属表面处理用处理液及表面处理方法
CN1934660A (zh) * 2004-06-30 2007-03-21 信越化学工业株式会社 耐腐蚀的稀土磁体及其制造方法

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1316375C (en) 1982-08-21 1993-04-20 Masato Sagawa Magnetic materials and permanent magnets
JPH0442517A (ja) 1990-06-08 1992-02-13 Shin Etsu Chem Co Ltd 耐食性希土類永久磁石の製造方法
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
US6281774B1 (en) * 1999-09-10 2001-08-28 Sumitomo Special Metals Co., Ltd. Corrosion-resistant permanent magnet and method for producing the same
EP1180771B1 (en) * 2000-08-11 2004-10-27 Neomax Co., Ltd. Rare earth metal-based permanent magnet having corrosion-resistant film and method for producing the same
JP2002198241A (ja) 2000-08-11 2002-07-12 Sumitomo Special Metals Co Ltd 耐食性被膜を有する希土類系永久磁石およびその製造方法
JP4225063B2 (ja) * 2003-01-10 2009-02-18 日立金属株式会社 高耐食性永久磁石およびその製造方法
JP2006161110A (ja) * 2004-12-08 2006-06-22 Nippon Paint Co Ltd 車両のシャシ用金属表面の塗装前処理方法及び粉体塗料の塗装方法
JP2007116088A (ja) * 2005-09-26 2007-05-10 Hitachi Ltd 磁性材料，磁石及び回転機
JP4797906B2 (ja) * 2005-09-26 2011-10-19 株式会社日立製作所 磁性材料，磁石及び回転機
JP4415980B2 (ja) * 2006-08-30 2010-02-17 株式会社日立製作所 高抵抗磁石およびそれを用いたモータ
JP4900121B2 (ja) * 2007-03-29 2012-03-21 日立化成工業株式会社 フッ化物コート膜形成処理液およびフッ化物コート膜形成方法
JP4564993B2 (ja) 2007-03-29 2010-10-20 株式会社日立製作所 希土類磁石及びその製造方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1259754A (zh) * 1998-12-17 2000-07-12 住友特殊金属株式会社 稀土金属永磁体及其生产方法
CN1516751A (zh) * 2001-06-15 2004-07-28 �ձ�������ʽ���� 金属表面处理用处理液及表面处理方法
CN1934660A (zh) * 2004-06-30 2007-03-21 信越化学工业株式会社 耐腐蚀的稀土磁体及其制造方法

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
JP特开2000-199074A 2000.07.18
JP特开2004-221196A 2004.08.05

Also Published As

Publication number Publication date
JP4586937B2 (ja) 2010-11-24
JPWO2010001878A1 (ja) 2011-12-22
US9275795B2 (en) 2016-03-01
US20110186181A1 (en) 2011-08-04
JP5516092B2 (ja) 2014-06-11
JP2010263223A (ja) 2010-11-18
CN102084438A (zh) 2011-06-01
EP2299455A2 (en) 2011-03-23
EP2299455B1 (en) 2018-09-19
US20140083568A1 (en) 2014-03-27
WO2010001878A2 (ja) 2010-01-07
WO2010001878A3 (ja) 2010-02-25
US8641833B2 (en) 2014-02-04
EP2299455A4 (en) 2017-05-17

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Application publication date: 20110601

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Denomination of invention: Corrosion-resistant magnet and manufacturing method therefor

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