BRPI0817453A2 - Método para produção de magneto sinterizado à base de metal terra rara com superfície modificada e magneto sinterizado à base de metal terra rara com superfície modificada. - Google Patents

Método para produção de magneto sinterizado à base de metal terra rara com superfície modificada e magneto sinterizado à base de metal terra rara com superfície modificada.

Info

Publication number
BRPI0817453A2
BRPI0817453A2 BRPI0817453-9A BRPI0817453A BRPI0817453A2 BR PI0817453 A2 BRPI0817453 A2 BR PI0817453A2 BR PI0817453 A BRPI0817453 A BR PI0817453A BR PI0817453 A2 BRPI0817453 A2 BR PI0817453A2
Authority
BR
Brazil
Prior art keywords
rare earth
earth metal
sintered magnet
surface modified
metal sintered
Prior art date
Application number
BRPI0817453-9A
Other languages
English (en)
Inventor
Mahoro Fujihara
Koshi Yoshimura
Atsushi Kikugawa
Original Assignee
Hitachi Metals 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 Hitachi Metals Ltd filed Critical Hitachi Metals Ltd
Publication of BRPI0817453A2 publication Critical patent/BRPI0817453A2/pt
Publication of BRPI0817453B1 publication Critical patent/BRPI0817453B1/pt

Links

Classifications

    • 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
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
    • C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
    • C23C8/10—Oxidising
    • C23C8/16—Oxidising using oxygen-containing compounds, e.g. water, carbon dioxide
    • 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
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
    • C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
    • C23C8/10—Oxidising
    • C23C8/12—Oxidising using elemental oxygen or ozone
    • 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
    • H01F1/055—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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Power Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Hard Magnetic Materials (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
  • Powder Metallurgy (AREA)
BRPI0817453-9A 2007-09-27 2008-09-26 Magneto sinterizado à base de metal terra rara com superfície modificada e método para produção de magneto sinterizado à base de metal terra rara com superfície modificada BRPI0817453B1 (pt)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP2007-252624 2007-09-27
JP2007252624 2007-09-27
JP2008-091830 2008-03-31
JP2008091830 2008-03-31
PCT/JP2008/067527 WO2009041639A1 (ja) 2007-09-27 2008-09-26 表面改質された希土類系焼結磁石の製造方法および表面改質された希土類系焼結磁石

Publications (2)

Publication Number Publication Date
BRPI0817453A2 true BRPI0817453A2 (pt) 2015-06-16
BRPI0817453B1 BRPI0817453B1 (pt) 2019-10-08

Family

ID=40511519

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0817453-9A BRPI0817453B1 (pt) 2007-09-27 2008-09-26 Magneto sinterizado à base de metal terra rara com superfície modificada e método para produção de magneto sinterizado à base de metal terra rara com superfície modificada

Country Status (7)

Country Link
US (1) US9175376B2 (pt)
EP (1) EP2197007B1 (pt)
JP (1) JP4636207B2 (pt)
KR (1) KR101482816B1 (pt)
CN (1) CN101809690B (pt)
BR (1) BRPI0817453B1 (pt)
WO (1) WO2009041639A1 (pt)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5609209B2 (ja) * 2009-09-29 2014-10-22 日立金属株式会社 表面改質された希土類系焼結磁石の製造方法
JP5445125B2 (ja) * 2009-12-28 2014-03-19 日立金属株式会社 表面改質されたＲ−Ｆｅ−Ｂ系焼結磁石の製造方法
US20120299676A1 (en) * 2009-12-28 2012-11-29 Hitachi Metals, Ltd. Corrosion-resistant magnet and method for producing the same
US9558885B2 (en) 2010-06-30 2017-01-31 Hitachi Metals, Ltd. Method for producing surface-modified rare earth metal-based sintered magnet
JP5786398B2 (ja) * 2011-03-24 2015-09-30 日立金属株式会社 表面改質されたＲ−Ｆｅ−Ｂ系焼結磁石およびその製造方法
CN103219120B (zh) * 2012-01-18 2016-02-10 株式会社神户制钢所 压粉磁芯的制造方法以及由该制造方法而得的压粉磁芯
JP6037213B2 (ja) * 2012-09-20 2016-12-07 日立金属株式会社 表面改質されたＲ−Ｆｅ−Ｂ系焼結磁石の製造方法
CN103646776B (zh) * 2013-12-03 2015-11-18 江苏大学 基于塑性约束的烧结钕铁硼磁体的机械表面改性方法
CN103762070B (zh) * 2014-02-25 2016-05-04 浙江爱特新能源汽车有限公司 一种表面改性的稀土永磁磁环的制备方法
CN103990794B (zh) * 2014-06-10 2016-04-13 江苏巨鑫磁业有限公司 一种粘结钕铁硼快淬永磁粉残留结晶体氧化方法
JP6759649B2 (ja) * 2016-03-23 2020-09-23 Tdk株式会社 希土類磁石及びモーター
JP7320102B2 (ja) * 2018-09-06 2023-08-02 大同特殊鋼株式会社 希土類焼結磁石及びその製造方法
JP7260304B2 (ja) * 2019-01-11 2023-04-18 トヨタ自動車株式会社 軟磁性部材の製造方法
JPWO2020208721A1 (pt) * 2019-04-09 2020-10-15
CN112746296A (zh) * 2019-12-02 2021-05-04 天津京磁电子元件制造有限公司 钕铁硼磁铁电镀铜的方法
CN111739705A (zh) * 2020-07-17 2020-10-02 福建省长汀金龙稀土有限公司 一种r-t-b磁体材料、r-t-b材料及其制备方法
CN112259359B (zh) * 2020-12-22 2021-03-19 北京中科三环高技术股份有限公司 烧结钕铁硼磁体及其防腐蚀处理方法
CN113555208B (zh) * 2021-06-11 2023-11-10 杭州电子科技大学 一种烧结钕铁硼磁体的表面处理方法及烧结钕铁硼磁体
CN114023553A (zh) * 2021-11-15 2022-02-08 山西大缙华磁性材料有限公司 制作高一致性烧结钕铁硼永磁体的工艺方法
CN114566370A (zh) * 2022-03-02 2022-05-31 浙江大学 低温氧化/氮化处理提高钕铁硼抗蚀性的方法
CN114743783B (zh) * 2022-04-11 2024-05-10 安徽省瀚海新材料股份有限公司 一种降低烧结钕铁硼磁体氧含量的方法
CN115602400B (zh) * 2022-09-27 2023-11-17 宁波佳丰磁材科技有限公司 一种抗氧化钕铁硼磁体及其制备方法

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69318998T2 (de) 1992-02-15 1998-10-15 Santoku Metal Ind Legierungsblock für einen Dauermagnet, anisotropes Pulver für einen Dauermagnet, Verfahren zur Herstellung eines solchen und Dauermagneten
JP2001160508A (ja) 1999-09-24 2001-06-12 Sumitomo Special Metals Co Ltd Ｒ−Ｆｅ−Ｂ系永久磁石およびその製造方法
JP4190743B2 (ja) 2000-05-31 2008-12-03 信越化学工業株式会社 希土類永久磁石の製造方法
JP4457881B2 (ja) * 2003-12-25 2010-04-28 Ｔｄｋ株式会社 希土類磁石
JP4424030B2 (ja) 2004-03-26 2010-03-03 Ｔｄｋ株式会社 希土類磁石、その製造方法、及び多層体の製造方法
US9005780B2 (en) * 2004-03-26 2015-04-14 Tdk Corporation Rare earth magnet, method for producing same and method for producing multilayer body
JP4457726B2 (ja) 2004-03-29 2010-04-28 Ｔｄｋ株式会社 希土類磁石の製造方法及び希土類磁石
JP4276631B2 (ja) * 2005-02-28 2009-06-10 Ｔｄｋ株式会社 希土類磁石及びその製造方法
KR100866018B1 (ko) * 2004-03-31 2008-10-31 티디케이가부시기가이샤 희토류 자석 및 이의 제조방법
JP4029095B2 (ja) 2004-03-31 2008-01-09 Ｔｄｋ株式会社 希土類磁石及びその製造方法
JP2006049801A (ja) * 2004-06-28 2006-02-16 Aisin Seiki Co Ltd 耐食性磁石及びその製造方法
JP2006156853A (ja) 2004-11-30 2006-06-15 Tdk Corp 希土類磁石
JP2007005619A (ja) * 2005-06-24 2007-01-11 Aisin Seiki Co Ltd 耐食性磁石及びその製造方法
JP4508065B2 (ja) 2005-09-30 2010-07-21 Ｔｄｋ株式会社 希土類磁石
JP2007207936A (ja) * 2006-01-31 2007-08-16 Tdk Corp 希土類磁石
JP2008004907A (ja) * 2006-05-22 2008-01-10 Aisin Seiki Co Ltd 耐食性磁石及びその製造方法
JP5098390B2 (ja) 2007-03-27 2012-12-12 Ｔｄｋ株式会社 希土類磁石

Also Published As

Publication number Publication date
JPWO2009041639A1 (ja) 2011-01-27
EP2197007A4 (en) 2015-07-22
KR20100072261A (ko) 2010-06-30
BRPI0817453B1 (pt) 2019-10-08
JP4636207B2 (ja) 2011-02-23
WO2009041639A1 (ja) 2009-04-02
CN101809690A (zh) 2010-08-18
US20100252145A1 (en) 2010-10-07
KR101482816B1 (ko) 2015-01-14
US9175376B2 (en) 2015-11-03
EP2197007A1 (en) 2010-06-16
CN101809690B (zh) 2012-07-25
EP2197007B1 (en) 2018-03-21

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Legal Events

Date Code Title Description
B06T Formal requirements before examination [chapter 6.20 patent gazette]
B15K Others concerning applications: alteration of classification

Free format text: AS CLASSIFICACOES ANTERIORES ERAM: H01F 41/02 , C23C 8/12 , C23C 8/16 , H01F 1/053 , H01F 1/08

Ipc: C23C 8/12 (1985.01), H01F 41/02 (1968.09), C23C 8/

B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B06F Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 08/10/2019, OBSERVADAS AS CONDICOES LEGAIS. (CO) 10 (DEZ) ANOS CONTADOS A PARTIR DE 08/10/2019, OBSERVADAS AS CONDICOES LEGAIS

B25G Requested change of headquarter approved

Owner name: HITACHI METALS, LTD. (JP)

B25D Requested change of name of applicant approved

Owner name: PROTERIAL, LTD. (JP)

B25A Requested transfer of rights approved

Owner name: HITACHI, LTD. (JP)