JP4961454B2 - 希土類磁石及びこれを用いたモータ - Google Patents
希土類磁石及びこれを用いたモータ Download PDFInfo
- Publication number
- JP4961454B2 JP4961454B2 JP2009115081A JP2009115081A JP4961454B2 JP 4961454 B2 JP4961454 B2 JP 4961454B2 JP 2009115081 A JP2009115081 A JP 2009115081A JP 2009115081 A JP2009115081 A JP 2009115081A JP 4961454 B2 JP4961454 B2 JP 4961454B2
- Authority
- JP
- Japan
- Prior art keywords
- magnet
- iron
- fluorine
- atoms
- magnetic powder
- 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 - Fee Related
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/0433—Nickel- or cobalt-based alloys
- C22C1/0441—Alloys based on intermetallic compounds of the type rare earth - Co, Ni
-
- 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
- H01F1/40—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials of magnetic semiconductor materials, e.g. CdCr2S4
- H01F1/408—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials of magnetic semiconductor materials, e.g. CdCr2S4 half-metallic, i.e. having only one electronic spin direction at the Fermi level, e.g. CrO2, Heusler alloys
-
- 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
- H01F1/0555—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 pressed, sintered or bonded together
- H01F1/0556—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 pressed, sintered or bonded together pressed
-
- 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
- H01F1/0555—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 pressed, sintered or bonded together
- H01F1/0557—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 pressed, sintered or bonded together sintered
-
- 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
- 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
- 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
- H01F1/059—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and Va elements, e.g. Sm2Fe17N2
- H01F1/0596—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and Va elements, e.g. Sm2Fe17N2 of rhombic or rhombohedral Th2Zn17 structure or hexagonal Th2Ni17 structure
-
- 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
- H01F1/06—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 in the form of particles, e.g. powder
- H01F1/08—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 in the form of particles, e.g. powder pressed, sintered, or bound together
-
- 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
- H01F1/06—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 in the form of particles, e.g. powder
- H01F1/08—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 in the form of particles, e.g. powder pressed, sintered, or bound together
- H01F1/086—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 in the form of particles, e.g. powder pressed, sintered, or bound together sintered
-
- 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
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/02—Details of the magnetic circuit characterised by the magnetic material
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Hard Magnetic Materials (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Powder Metallurgy (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
Description
(R・E)a+bTcAdFeOfMg (2)
(式中、RはSc及びYを含む希土類元素から選ばれる1種又は2種以上、Eはアルカリ土類金属元素及び希土類元素から選ばれる1種又は2種以上であるが、RとEとが同一元素を含有していてもよく、RとEとが同一元素を含有していない場合は式(1)で表され、RとEとが同一元素を含有している場合は式(2)で表される。TはFe及びCoから選ばれる1種又は2種、AはB及びCから選ばれる1種又は2種、MはAl、Cu、Zn、In、Si、P、S、Ti、V、Cr、Mn、Ni、Ga、Ge、Zr、Nb、Mo、Pd、Ag、Cd、Sn、Sb、Hf、Ta、Wの中から選ばれる1種又は2種以上。)
特許文献4には、R1 aR2 bTcAdFeOfMg組成を有する焼結磁石体であって、該焼結磁石体中の(R1、R2)2T14A正方晶からなる主相結晶粒の周りを取り囲む結晶粒界部において、結晶粒界に含まれるR2/(R1+R2)の濃度が主相結晶粒中のR2/(R1+R2)濃度より平均的に濃く、しかも、R2が磁石体中心より磁石体表面に向かって平均的にその含有濃度が濃くなるように分布し、かつ、結晶粒界部の磁石体表面より少なくとも20μmの深さ領域にまで、結晶粒界部に(R1、R2)の酸フッ化物が存在し、磁石体表層部の保磁力が内部より高い傾斜機能性希土類永久磁石が開示されている。
(R・G)a+bTcAdFeOfMg (4)
(ここで、Rは希土類元素から選択される1種又は2種以上、Mはフッ素を含有する溶液を塗布する前に磁石内に存在する希土類元素を除く原子番号3番〜116番の元素、Gは遷移金属元素及び希土類元素からそれぞれ1種以上選択される元素、又は遷移金属元素及びアルカリ土類金属元素からそれぞれ1種以上選択される元素であり、RとGとが同一であっても良く、RとGとが同一元素でない場合は上記化学式(3)で表され、RとGとが同一元素である場合は上記化学式(4)で表される。TはFe及びCoから選ばれる1種又は2種、AはH(水素)及びC(炭素)から選ばれる1種又は2種以上、a〜gは合金の原子%でa、bは上記化学式(3)の場合0.5≦a≦10、0.005≦b≦1であり、上記化学式(4)の場合は0.6≦a+b≦11であり、0.01≦d≦1、1≦e≦3、0.01≦f≦1、0.01≦g≦1、残部がcである。)
その構成元素であるフッ素が磁石を構成する結晶粒の中心から表面に向かって平均的に含有濃度が高くなるように分布し、かつ、該磁石中のFeを主とするFe−F相が希土類元素を多く含有する主相よりも体積率が少ないことが、X線回折や電子顕微鏡の透過電子線回折、電子線後方散乱パターン、メスバウア効果の測定、中性子線回折などから判明している。
(R・G)a+bTcAd(F、N)eOfMg (6)
(ここで、Rは希土類元素から選択される1種又は2種以上、Mはフッ素を含有する溶液を塗布する前に磁石内に存在する希土類元素を除く原子番号3番〜116番の元素、Gは遷移金属元素及び希土類元素からそれぞれ1種以上選択される元素、又は遷移金属元素及びアルカリ土類金属元素からそれぞれ1種以上選択される元素であるが、RとGが同一元素を含有していても良く、RとGが同一元素を含有していない場合は上記化学式(5)で表され、RとGが同一元素を含有している場合は上記化学式(6)で表される。TはFe及びCoから選ばれる1種又は2種、AはH(水素)及びC(炭素)から選ばれる1種又は2種以上、a〜gは合金の原子%でa、bは上記化学式(5)の場合0.5≦a≦10、0.005≦b≦1であり、上記化学式(6)の場合は0.6≦a+b≦11であり、0.01≦d≦1、1≦e≦3、0.01≦f≦1、0.01≦g≦1、残部がcである。)
その構成元素であるフッ素及び窒素が磁石を構成する結晶粒の中心から表面に向かって平均的に含有濃度が高くなるように分布し、かつ該磁石中のFeを主とするFe−(F、N)相が希土類元素を多く含有する主相よりも体積率が少ないことが、X線回折や電子顕微鏡の透過電子線回折、電子線後方散乱パターン、メスバウア効果の測定、中性子線回折などから判明している。
Claims (12)
- 磁粉を固めて形成した磁石であって、この磁粉の表面を金属フッ化物被膜で覆った構成を有し、前記磁粉は、相隣る鉄原子が結合したホモ部、及び二個の鉄原子が鉄以外の原子を介して結合したヘテロ部を含む結晶構造を有し、前記二個の鉄原子の距離が、前記相隣る鉄原子の距離と異なり、前記磁粉の中心部を構成する母相と前記ヘテロ部を含む結晶とが直接接触した構造を有することを特徴とする磁石。
- 前記鉄以外の原子の一部又は全部が、フッ素、ホウ素、炭素、窒素及び酸素の群から選択される元素であることを特徴とする請求項1記載の磁石。
- 前記磁粉が、希土類元素を含むことを特徴とする請求項1又は2に記載の磁石。
- 前記金属フッ化物被膜が、希土類元素、アルカリ金属元素及びアルカリ土類金属元素の群から選択される少なくとも一種類の元素のフッ化物を含むことを特徴とする請求項1〜3のいずれか一項に記載の磁石。
- 前記母相に含まれる前記鉄以外の原子の濃度が、前記母相の中心部に比べて前記母相の外周部で高いことを特徴とする請求項1〜4のいずれか一項に記載の磁石。
- 請求項1〜5のいずれか一項に記載の磁石を用いたことを特徴とする回転子。
- 前記磁石の外周部における前記鉄以外の原子の濃度が、前記磁石の内周部における前記鉄以外の原子の濃度よりも高いことを特徴とする請求項6記載の回転子。
- 前記磁石の外周部における磁束密度が、前記磁石の内周部における磁束密度よりも高いことを特徴とする請求項6記載の回転子。
- 前記磁石の外周部における磁束密度及び保磁力が、前記磁石の内周部における磁束密度及び保磁力よりも高いことを特徴とする請求項6記載の回転子。
- 請求項1〜5のいずれか一項に記載の磁石を用いたことを特徴とするモータ。
- 請求項6〜9のいずれか一項に記載の回転子を用いたことを特徴とするモータ。
- 請求項1〜5のいずれか一項に記載の磁石を用いたことを特徴とする回転電機。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009115081A JP4961454B2 (ja) | 2009-05-12 | 2009-05-12 | 希土類磁石及びこれを用いたモータ |
US12/777,738 US20100289366A1 (en) | 2009-05-12 | 2010-05-11 | Rare Earth Magnet and Motor Using the Same |
CN201010178662XA CN101887792B (zh) | 2009-05-12 | 2010-05-12 | 稀土类磁体及采用该磁体的马达 |
US13/924,746 US20130278104A1 (en) | 2009-05-12 | 2013-06-24 | Rare Earth Magnet and Motor Using the Same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009115081A JP4961454B2 (ja) | 2009-05-12 | 2009-05-12 | 希土類磁石及びこれを用いたモータ |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2010267637A JP2010267637A (ja) | 2010-11-25 |
JP4961454B2 true JP4961454B2 (ja) | 2012-06-27 |
Family
ID=43067929
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009115081A Expired - Fee Related JP4961454B2 (ja) | 2009-05-12 | 2009-05-12 | 希土類磁石及びこれを用いたモータ |
Country Status (3)
Country | Link |
---|---|
US (2) | US20100289366A1 (ja) |
JP (1) | JP4961454B2 (ja) |
CN (1) | CN101887792B (ja) |
Families Citing this family (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4961454B2 (ja) * | 2009-05-12 | 2012-06-27 | 株式会社日立製作所 | 希土類磁石及びこれを用いたモータ |
JP5130270B2 (ja) * | 2009-09-30 | 2013-01-30 | 株式会社日立製作所 | 磁性材料及びそれを用いたモータ |
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 |
JP5752425B2 (ja) * | 2011-01-11 | 2015-07-22 | 株式会社日立製作所 | 希土類磁石 |
JP2014157845A (ja) * | 2011-04-14 | 2014-08-28 | Hitachi Ltd | 磁石材料 |
JP2014194958A (ja) * | 2011-06-21 | 2014-10-09 | Hitachi Ltd | 焼結磁石 |
FR2985085B1 (fr) * | 2011-12-23 | 2014-02-21 | Alstom Technology Ltd | Actionneur electromagnetique a aimants permanents et interrupteur-sectionneur mecanique actionne par un tel actionneur |
JP2013175650A (ja) * | 2012-02-27 | 2013-09-05 | Jtekt Corp | 磁石の製造方法および磁石 |
JP6003085B2 (ja) | 2012-02-27 | 2016-10-05 | 株式会社ジェイテクト | 磁石の製造方法 |
CN102693828B (zh) * | 2012-06-21 | 2013-12-18 | 有研稀土新材料股份有限公司 | 一种Nd-Fe-B永磁体的制备工艺及其制备的磁体 |
US10468952B2 (en) | 2012-12-14 | 2019-11-05 | Abb Schweiz Ag | Permanent magnet machine with hybrid cage and methods for operating same |
JP6246500B2 (ja) * | 2013-05-28 | 2017-12-13 | 日本電産サンキョー株式会社 | 希土類磁石の製造方法 |
WO2015183379A1 (en) * | 2014-05-29 | 2015-12-03 | Abb Technology Ag | Layered permanent magnet with conductive cage rotor construction |
JP6522462B2 (ja) | 2014-08-30 | 2019-05-29 | 太陽誘電株式会社 | コイル部品 |
CN105723476B (zh) * | 2014-09-19 | 2018-03-27 | 株式会社东芝 | 永磁体、电动机及发电机 |
CN107077936B (zh) * | 2014-11-28 | 2019-03-12 | 株式会社东芝 | 永磁体、电动机及发电机 |
US10748703B2 (en) * | 2016-01-28 | 2020-08-18 | Fanuc Corporation | Three-phase reactor comprising iron-core units and coils |
CN105914984B (zh) * | 2016-05-05 | 2019-03-05 | 华中科技大学 | 一种变磁通-强磁型永磁同步电机 |
JP2017216778A (ja) * | 2016-05-30 | 2017-12-07 | Tdk株式会社 | モータ |
JP2018153008A (ja) * | 2017-03-13 | 2018-09-27 | Tdk株式会社 | モータ |
WO2018190628A1 (ko) * | 2017-04-11 | 2018-10-18 | 엘지이노텍(주) | 영구 자석, 이를 제조하는 방법 및 이를 포함하는 모터 |
JP2018199860A (ja) * | 2017-05-30 | 2018-12-20 | 株式会社フジクラ | ガドリニウム線材、それを用いた金属被覆ガドリニウム線材、熱交換器及び磁気冷凍装置 |
TW202006074A (zh) * | 2018-07-11 | 2020-02-01 | 德商巴斯夫歐洲公司 | 改良的溫度穩定型軟磁粉末 |
JP7021035B2 (ja) * | 2018-09-18 | 2022-02-16 | 株式会社東芝 | 永久磁石、回転電機、及び車 |
KR102411584B1 (ko) | 2018-10-22 | 2022-06-20 | 주식회사 엘지화학 | 소결 자석의 제조 방법 및 소결 자석 |
DE102020202304A1 (de) * | 2020-02-24 | 2021-08-26 | Robert Bosch Gesellschaft mit beschränkter Haftung | Rotorblechpaketanordnung, Rotoranordnung, rotierende elektrische Maschine, Verfahren zur Steuerung einer rotierenden elektrischen Maschine und Steuereinheit zur Steuerung einer rotierenden elektrischen Maschine |
JP2021158353A (ja) * | 2020-03-25 | 2021-10-07 | Tdk株式会社 | 希土類永久磁石及びこれを備える回転電機 |
CN111653408B (zh) * | 2020-05-21 | 2022-11-15 | 中国科学院宁波材料技术与工程研究所 | 一种电磁复合材料及其制备方法和应用 |
CN112837921A (zh) * | 2021-01-06 | 2021-05-25 | 陈凯华 | 一种钕铁硼磁体渗镝的方法 |
CN113224862A (zh) * | 2021-06-11 | 2021-08-06 | 华域汽车电动系统有限公司 | 局部扩散电机磁钢 |
CN114759703A (zh) * | 2022-04-28 | 2022-07-15 | 安徽美芝精密制造有限公司 | 转子组件、永磁电机和压缩机 |
CN115116734B (zh) * | 2022-07-21 | 2024-02-02 | 宁波松科磁材有限公司 | 一种改善晶界扩散制备高性能钕铁硼永磁材料的方法 |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1932639A (en) * | 1931-07-30 | 1933-10-31 | Automatic Electric Co Ltd | Magnet core |
US4496395A (en) * | 1981-06-16 | 1985-01-29 | General Motors Corporation | High coercivity rare earth-iron magnets |
US5172751A (en) * | 1982-09-03 | 1992-12-22 | General Motors Corporation | High energy product rare earth-iron magnet alloys |
EP0108474B2 (en) * | 1982-09-03 | 1995-06-21 | General Motors Corporation | RE-TM-B alloys, method for their production and permanent magnets containing such alloys |
CA1269029A (en) * | 1986-01-29 | 1990-05-15 | Peter Vernia | Permanent magnet manufacture from very low coercivity crystalline rare earth-transition metal-boron alloy |
JP2005209669A (ja) * | 2004-01-20 | 2005-08-04 | Hitachi Ltd | 希土類磁石及びそれを用いた磁気回路 |
JP4791013B2 (ja) * | 2004-07-22 | 2011-10-12 | 三菱電機株式会社 | ブラシレスモータ |
TWI302712B (en) * | 2004-12-16 | 2008-11-01 | Japan Science & Tech Agency | Nd-fe-b base magnet including modified grain boundaries and method for manufacturing the same |
JP2006270699A (ja) * | 2005-03-25 | 2006-10-05 | Matsushita Electric Ind Co Ltd | 非接触型id識別装置 |
JP4517911B2 (ja) * | 2005-03-25 | 2010-08-04 | 日本電気株式会社 | ポリシー配布方法、システム、プログラム、ポリシー配布サーバ、及び、クライアント端末 |
JP4710507B2 (ja) * | 2005-09-21 | 2011-06-29 | 株式会社日立製作所 | 磁石,磁石用磁性材料,コート膜形成処理液及び回転機 |
JP4719568B2 (ja) * | 2005-12-22 | 2011-07-06 | 日立オートモティブシステムズ株式会社 | 圧粉磁石およびそれを用いた回転機 |
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 |
JP2008016670A (ja) * | 2006-07-06 | 2008-01-24 | Hitachi Ltd | 磁性粉、圧粉磁心の製造方法、及び圧粉磁心 |
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 |
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 |
JP2008282832A (ja) * | 2007-05-08 | 2008-11-20 | Hitachi Ltd | 希土類磁石 |
WO2008146937A1 (ja) * | 2007-05-28 | 2008-12-04 | Toyota Jidosha Kabushiki Kaisha | 磁石埋め込み型モータ用ロータと磁石埋め込み型モータ |
JP2009153356A (ja) * | 2007-12-25 | 2009-07-09 | Hitachi Ltd | 自己始動式永久磁石同期電動機 |
JP4961454B2 (ja) * | 2009-05-12 | 2012-06-27 | 株式会社日立製作所 | 希土類磁石及びこれを用いたモータ |
-
2009
- 2009-05-12 JP JP2009115081A patent/JP4961454B2/ja not_active Expired - Fee Related
-
2010
- 2010-05-11 US US12/777,738 patent/US20100289366A1/en not_active Abandoned
- 2010-05-12 CN CN201010178662XA patent/CN101887792B/zh not_active Expired - Fee Related
-
2013
- 2013-06-24 US US13/924,746 patent/US20130278104A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
CN101887792B (zh) | 2013-06-26 |
JP2010267637A (ja) | 2010-11-25 |
US20130278104A1 (en) | 2013-10-24 |
CN101887792A (zh) | 2010-11-17 |
US20100289366A1 (en) | 2010-11-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4961454B2 (ja) | 希土類磁石及びこれを用いたモータ | |
JP4672030B2 (ja) | 焼結磁石及びそれを用いた回転機 | |
JP4900121B2 (ja) | 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 | |
US8350430B2 (en) | Rotating machine with sintered magnet and method for producing sintered magnet | |
JP4896104B2 (ja) | 焼結磁石及びそれを用いた回転機 | |
JP5262643B2 (ja) | Nd系焼結磁石及びその製造方法 | |
JP2010022147A (ja) | 焼結磁石モータ | |
JP4737431B2 (ja) | 永久磁石回転機 | |
US7806991B2 (en) | Low loss magnet and magnetic circuit using the same | |
JP5325975B2 (ja) | 焼結磁石及びそれを用いた回転電機 | |
US20080054738A1 (en) | High resistance magnet and motor using the same | |
US20120145944A1 (en) | Magnetic material and motor obtained using same | |
US20080241368A1 (en) | Treating solution for forming fluoride coating film and method for forming fluoride coating film | |
JP4797906B2 (ja) | 磁性材料,磁石及び回転機 | |
JP2007116088A (ja) | 磁性材料,磁石及び回転機 | |
JP5373002B2 (ja) | 希土類磁石及びそれを用いた回転機 | |
JP4919109B2 (ja) | 永久磁石回転機及び永久磁石回転機用永久磁石セグメントの製造方法 | |
JP2011029293A (ja) | 希土類磁石及びそれを用いた輸送機器用磁石モータ | |
JP4790769B2 (ja) | 希土類磁石及びそれを用いた回転機 | |
JP2012044203A (ja) | 焼結磁石、焼結磁石を備える回転機、および焼結磁石の製造方法 | |
JP2011019401A (ja) | 永久磁石回転機用永久磁石セグメントの製造方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20110530 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20111216 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20120110 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20120207 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20120228 |
|
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20120326 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20150330 Year of fee payment: 3 |
|
R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
LAPS | Cancellation because of no payment of annual fees |