BRPI0600224A - ìmã permanente de terra rara com funcionalidade graduada - Google Patents

ìmã permanente de terra rara com funcionalidade graduada

Info

Publication number
BRPI0600224A
BRPI0600224A BRPI0600224-2A BRPI0600224A BRPI0600224A BR PI0600224 A BRPI0600224 A BR PI0600224A BR PI0600224 A BRPI0600224 A BR PI0600224A BR PI0600224 A BRPI0600224 A BR PI0600224A
Authority
BR
Brazil
Prior art keywords
magnet body
functionality
granulation
rare earth
concentration
Prior art date
Application number
BRPI0600224-2A
Other languages
English (en)
Inventor
Hajime Nakamura
Koichi Hirota
Masanobu Shimao
Takehisa Minowa
Original Assignee
Shinetsu Chemical Co
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 Shinetsu Chemical Co filed Critical Shinetsu Chemical Co
Publication of BRPI0600224A publication Critical patent/BRPI0600224A/pt
Publication of BRPI0600224B1 publication Critical patent/BRPI0600224B1/pt

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
    • H01F1/0577—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
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B11/00—Buckles; Similar fasteners for interconnecting straps or the like, e.g. for safety belts
    • A44B11/25—Buckles; Similar fasteners for interconnecting straps or the like, e.g. for safety belts with two or more separable parts
    • A44B11/26—Buckles; Similar fasteners for interconnecting straps or the like, e.g. for safety belts with two or more separable parts with push-button fastenings
    • A44B11/266—Buckles; Similar fasteners for interconnecting straps or the like, e.g. for safety belts with two or more separable parts with push-button fastenings with at least one push-button acting parallel to the main plane of the buckle and perpendicularly to the direction of the fastening action
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B11/00—Buckles; Similar fasteners for interconnecting straps or the like, e.g. for safety belts
    • A44B11/02—Buckles; Similar fasteners for interconnecting straps or the like, e.g. for safety belts frictionally engaging surface of straps
    • A44B11/06—Buckles; Similar fasteners for interconnecting straps or the like, e.g. for safety belts frictionally engaging surface of straps with clamping devices
    • 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
    • H01F41/0293—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 diffusion of rare earth elements, e.g. Tb, Dy or Ho, into permanent magnets
    • 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
    • H01F1/058—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IVa elements, e.g. Gd2Fe14C
    • 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
    • H01F41/0266—Moulding; Pressing

Landscapes

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

Abstract

"ìMã PERMANENTE DE TERRA COM FUNCIONALIDADE GRADUADA". Um ímã permanente de terra rara com funcionalidade graduada está na forma de um corpo de imã sinterizado tendo uma composição R¬ 1¬~ a~R¬ 2¬~ b~T~ c~A~ d~F~ e~O~ f~M~ g~ em que a concentração de R¬ 2¬/ (R¬ 1¬+R¬ 2¬) contida em limites de granulação circundando as granulações de fase primária de sistema tetragonal (R¬ 1¬, R¬ 2¬)~ 2~T~ 14~A dentro do corpo de ímã sinterizado é na média superior à concentração de R¬ 2¬/ (R¬ 1¬+R¬ 2¬) contida nas granulações de fase primária, R¬ 2¬ é distribuído de tal modo que sua concentração aumenta na média a partir do centro em direção à superfície do corpo de ímã, o oxifluoreto de (R¬ 1¬, R¬ 2¬) está presente em limites de granulação em uma região de limite de granulação que se estende a partir da superfície do corpo de ímã até uma profundidade de pelo menos 0,02 mm, e o corpo de ímã inclui uma camada de superfície tendo uma força coercitiva maior do que no interior. A invenção provê ímãs permanentes tendo resistência térmica aperfeiçoada.
BRPI0600224-2A 2005-03-23 2006-02-02 Ímã permanente de terra rara com funcionalidade graduada BRPI0600224B1 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2005084149 2005-03-23
JP2005-084149 2005-03-23

Publications (2)

Publication Number Publication Date
BRPI0600224A true BRPI0600224A (pt) 2006-11-28
BRPI0600224B1 BRPI0600224B1 (pt) 2018-04-17

Family

ID=36669582

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0600224-2A BRPI0600224B1 (pt) 2005-03-23 2006-02-02 Ímã permanente de terra rara com funcionalidade graduada

Country Status (8)

Country Link
US (1) US7520941B2 (pt)
EP (2) EP1705668B1 (pt)
KR (1) KR101084340B1 (pt)
CN (1) CN100594566C (pt)
BR (1) BRPI0600224B1 (pt)
MY (1) MY142131A (pt)
RU (1) RU2389098C2 (pt)
TW (1) TWI417906B (pt)

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US7559996B2 (en) 2005-07-22 2009-07-14 Shin-Etsu Chemical Co., Ltd. Rare earth permanent magnet, making method, and permanent magnet rotary machine
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US7955443B2 (en) * 2006-04-14 2011-06-07 Shin-Etsu Chemical Co., Ltd. Method for preparing rare earth permanent magnet material
JP4656323B2 (ja) * 2006-04-14 2011-03-23 信越化学工業株式会社 希土類永久磁石材料の製造方法
JP4753030B2 (ja) * 2006-04-14 2011-08-17 信越化学工業株式会社 希土類永久磁石材料の製造方法
JP4737431B2 (ja) 2006-08-30 2011-08-03 信越化学工業株式会社 永久磁石回転機
JP4840606B2 (ja) * 2006-11-17 2011-12-21 信越化学工業株式会社 希土類永久磁石の製造方法
JP5130941B2 (ja) * 2007-03-13 2013-01-30 大同特殊鋼株式会社 永久磁石素材の製造方法
CN101641854B (zh) * 2007-03-27 2012-10-10 日立金属株式会社 永磁体式旋转机及其制造方法
US20100171386A1 (en) * 2007-05-28 2010-07-08 Toyota Jidosha Kabushiki Kaisha Rotor for magnet-embedded motor and magnet-embedded motor
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JP4672030B2 (ja) * 2008-01-31 2011-04-20 日立オートモティブシステムズ株式会社 焼結磁石及びそれを用いた回転機
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US20110057756A1 (en) * 2009-09-04 2011-03-10 Electron Energy Corporation Rare Earth Composite Magnets with Increased Resistivity
CN102484401B (zh) * 2009-09-09 2015-11-25 信越化学工业株式会社 用于永磁体旋转机的转子
US8638017B2 (en) * 2009-09-18 2014-01-28 Shin-Etsu Chemical Co., Ltd. Rotor for permanent magnet rotating machine
JP5472444B2 (ja) 2010-03-04 2014-04-16 Ｔｄｋ株式会社 希土類焼結磁石及びモータ
CN102822912B (zh) 2010-03-30 2015-07-22 Tdk株式会社 稀土类烧结磁铁以及其制造方法、马达以及汽车
CN101847487B (zh) * 2010-06-30 2012-05-30 烟台正海磁性材料股份有限公司 梯度矫顽力钕铁硼磁体及其生产方法
CN101859639B (zh) * 2010-07-06 2013-03-27 烟台正海磁性材料股份有限公司 一种梯度电阻R-Fe-B系磁体及其生产方法
JP2012112040A (ja) * 2010-11-05 2012-06-14 Shin-Etsu Chemical Co Ltd スパッタ装置用磁気回路
MY165562A (en) * 2011-05-02 2018-04-05 Shinetsu Chemical Co Rare earth permanent magnets and their preparation
JP5868500B2 (ja) * 2012-05-30 2016-02-24 株式会社日立製作所 焼結磁石及びその製造方法
CN103680792B (zh) * 2013-12-19 2015-12-09 南京信息工程大学 一种含钯高内禀矫顽力材料及其制备方法
CN105070445B (zh) * 2015-08-12 2018-01-16 宁波市鄞州区亿能磁业有限公司 一种钕铁硼磁性材料及制备方法
CN111477445B (zh) * 2020-03-02 2022-07-22 浙江东阳东磁稀土有限公司 一种用于烧结钕铁硼的晶界扩散方法
CN111653407B (zh) * 2020-07-20 2021-02-02 江西金力永磁科技股份有限公司 梯度分布的钕铁硼磁体及其制备方法
CN113571279B (zh) * 2021-07-23 2024-05-03 包头天和磁材科技股份有限公司 磁体及其制造方法

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Also Published As

Publication number Publication date
US7520941B2 (en) 2009-04-21
CN1838344A (zh) 2006-09-27
KR101084340B1 (ko) 2011-11-16
TW200634859A (en) 2006-10-01
EP1705668A2 (en) 2006-09-27
KR20060102482A (ko) 2006-09-27
BRPI0600224B1 (pt) 2018-04-17
RU2006103685A (ru) 2007-08-20
RU2389098C2 (ru) 2010-05-10
CN100594566C (zh) 2010-03-17
MY142131A (en) 2010-09-30
TWI417906B (zh) 2013-12-01
EP2267731A3 (en) 2011-04-20
EP1705668B1 (en) 2014-11-05
EP1705668A3 (en) 2008-02-13
US20060213582A1 (en) 2006-09-28
EP2267731A2 (en) 2010-12-29

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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]