TWI476791B - RTB rare earth sintered magnet - Google Patents

RTB rare earth sintered magnet Download PDF

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Publication number
TWI476791B
TWI476791B TW100116763A TW100116763A TWI476791B TW I476791 B TWI476791 B TW I476791B TW 100116763 A TW100116763 A TW 100116763A TW 100116763 A TW100116763 A TW 100116763A TW I476791 B TWI476791 B TW I476791B
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TW
Taiwan
Prior art keywords
rare earth
mass
sintered magnet
magnet
phase
Prior art date
Application number
TW100116763A
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English (en)
Chinese (zh)
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TW201222575A (en
Inventor
福井和也
橋本貴弘
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信越化學工業股份有限公司
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Publication of TW201222575A publication Critical patent/TW201222575A/zh
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Publication of TWI476791B publication Critical patent/TWI476791B/zh

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    • 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
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C28/00—Alloys based on a metal not provided for in groups C22C5/00 - C22C27/00
    • 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
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • 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
    • C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
    • 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
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • 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
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • 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
    • C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
    • 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
    • C22C38/10—Ferrous alloys, e.g. steel alloys containing cobalt
    • C22C38/105—Ferrous alloys, e.g. steel alloys containing cobalt containing Co and Ni
    • 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
    • C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
    • 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
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
    • B22F2998/10—Processes characterised by the sequence of their steps
    • 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

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Environmental & Geological Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Hard Magnetic Materials (AREA)
TW100116763A 2010-05-14 2011-05-13 RTB rare earth sintered magnet TWI476791B (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2010111743 2010-05-14

Publications (2)

Publication Number Publication Date
TW201222575A TW201222575A (en) 2012-06-01
TWI476791B true TWI476791B (zh) 2015-03-11

Family

ID=44117733

Family Applications (1)

Application Number Title Priority Date Filing Date
TW100116763A TWI476791B (zh) 2010-05-14 2011-05-13 RTB rare earth sintered magnet

Country Status (8)

Country Link
US (1) US8298351B2 (https=)
EP (1) EP2387044B1 (https=)
JP (2) JP2011258935A (https=)
KR (1) KR20110126059A (https=)
CN (1) CN102360654B (https=)
PH (1) PH12011000150A1 (https=)
RU (1) RU2559035C2 (https=)
TW (1) TWI476791B (https=)

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CN104137197B (zh) * 2012-02-13 2015-08-19 Tdk株式会社 R-t-b系烧结磁体
MY168281A (en) * 2012-04-11 2018-10-19 Shinetsu Chemical Co Rare earth sintered magnet and making method
JP6119548B2 (ja) * 2012-10-17 2017-04-26 信越化学工業株式会社 希土類焼結磁石の製造方法
CN103258634B (zh) * 2013-05-30 2015-11-25 烟台正海磁性材料股份有限公司 一种制备高性能R-Fe-B系烧结磁体方法
TWI476793B (zh) * 2013-05-30 2015-03-11 China Steel Corp 釹鐵硼磁石及其製造方法
DE112014003126T5 (de) * 2013-07-03 2016-03-17 Tdk Corporation R-T-B-basierter gesinterter Magnet
JP6274216B2 (ja) * 2013-08-09 2018-02-07 Tdk株式会社 Ｒ−ｔ−ｂ系焼結磁石、および、モータ
DE112014003678T5 (de) * 2013-08-09 2016-04-21 Tdk Corporation Sintermagnet auf R-T-B Basis und Motor
CN105474333B (zh) * 2013-08-09 2018-01-02 Tdk株式会社 R‑t‑b系烧结磁铁以及旋转电机
CN105453196B (zh) * 2013-08-09 2017-12-22 Tdk株式会社 R‑t‑b系烧结磁铁以及电动机
WO2015022945A1 (ja) * 2013-08-12 2015-02-19 日立金属株式会社 Ｒ－ｔ－ｂ系焼結磁石
CN103871704B (zh) * 2014-03-04 2016-03-09 南京信息工程大学 一种钕铁氮磷永磁材料及制备方法
JP2015228431A (ja) * 2014-06-02 2015-12-17 インターメタリックス株式会社 ＲＦｅＢ系磁石及びＲＦｅＢ系磁石の製造方法
JP6572550B2 (ja) * 2015-02-04 2019-09-11 Tdk株式会社 Ｒ−ｔ−ｂ系焼結磁石
CN106024235B (zh) * 2015-03-30 2020-01-17 日立金属株式会社 R－t－b系烧结磁体
JP6604381B2 (ja) * 2015-07-29 2019-11-13 日立金属株式会社 希土類系焼結磁石の製造方法
CN106448985A (zh) * 2015-09-28 2017-02-22 厦门钨业股份有限公司 一种复合含有Pr和W的R‑Fe‑B系稀土烧结磁铁
JP6488976B2 (ja) * 2015-10-07 2019-03-27 Tdk株式会社 Ｒ−ｔ−ｂ系焼結磁石
JP6614084B2 (ja) * 2016-09-26 2019-12-04 信越化学工業株式会社 Ｒ−Ｆｅ−Ｂ系焼結磁石の製造方法
JP6894305B2 (ja) * 2016-12-28 2021-06-30 トヨタ自動車株式会社 希土類磁石及びその製造方法
JP7056264B2 (ja) * 2017-03-22 2022-04-19 Tdk株式会社 Ｒ－ｔ－ｂ系希土類磁石
JP7247548B2 (ja) * 2017-12-28 2023-03-29 トヨタ自動車株式会社 希土類磁石及びその製造方法
CN108922710B (zh) * 2018-07-18 2020-03-20 钢铁研究总院 一种高韧性、高矫顽力含Ce烧结稀土永磁体及其制备方法
CN109576557A (zh) * 2018-10-08 2019-04-05 柳州凯通新材料科技有限公司 一种高磁能积高速无刷电机电芯材料及其制备方法
JP7196708B2 (ja) * 2019-03-18 2022-12-27 Tdk株式会社 Ｒ‐ｔ‐ｂ系永久磁石
CN111081444B (zh) * 2019-12-31 2021-11-26 厦门钨业股份有限公司 R-t-b系烧结磁体及其制备方法
CN111180159B (zh) * 2019-12-31 2021-12-17 厦门钨业股份有限公司 一种钕铁硼永磁材料、制备方法、应用
CN112795860B (zh) * 2020-04-27 2022-04-26 天津京磁电子元件制造有限公司 烧结钕铁硼磁体表面耐蚀防护涂层的制备方法
US20210366635A1 (en) * 2020-05-19 2021-11-25 Shin-Etsu Chemical Co., Ltd. Rare earth sintered magnet and making method
CN112802650B (zh) * 2020-12-30 2023-01-10 包头天和磁材科技股份有限公司 钐钴磁体及其制备方法和钛的用途
CN115188551B (zh) * 2022-07-26 2025-07-25 宁波大缙华磁性材料有限公司 一种耐腐蚀的烧结钕铁硼磁材及其制备工艺和由该钕铁硼磁材制成的圆柱体磁块
CN116779268A (zh) * 2023-06-15 2023-09-19 钢铁研究总院有限公司 一种高耐蚀不锈烧结钕铁硼磁体及其制备方法

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Also Published As

Publication number Publication date
JP6090596B2 (ja) 2017-03-08
JP2011258935A (ja) 2011-12-22
EP2387044B1 (en) 2014-11-26
RU2011119505A (ru) 2012-11-20
CN102360654A (zh) 2012-02-22
EP2387044A1 (en) 2011-11-16
KR20110126059A (ko) 2011-11-22
US8298351B2 (en) 2012-10-30
RU2559035C2 (ru) 2015-08-10
CN102360654B (zh) 2016-01-20
JP2015053517A (ja) 2015-03-19
PH12011000150A1 (en) 2015-02-27
TW201222575A (en) 2012-06-01
US20110279205A1 (en) 2011-11-17

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