CN112908601A - 一种R-Fe-B系烧结磁体及其晶界扩散处理方法 - Google Patents
一种R-Fe-B系烧结磁体及其晶界扩散处理方法 Download PDFInfo
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- CN112908601A CN112908601A CN202110075964.2A CN202110075964A CN112908601A CN 112908601 A CN112908601 A CN 112908601A CN 202110075964 A CN202110075964 A CN 202110075964A CN 112908601 A CN112908601 A CN 112908601A
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- C22C38/56—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.7% by weight of carbon
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- 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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
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- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
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- 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
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- 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
- H01F1/0553—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 obtained by reduction or by hydrogen decrepitation or embrittlement
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- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
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- 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
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- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
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- 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
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- 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
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- 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
- H01F1/0573—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 obtained by reduction or by hydrogen decrepitation or embrittlement
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- Crystallography & Structural Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Thermal Sciences (AREA)
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- Powder Metallurgy (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
Abstract
Description
元素 | Nd | B | Al | Ga | Cu | Ti | Co | Zr | Fe |
烧结磁体 | 30.5 | 0.92 | 0.08 | 0.2 | 0.12 | 0.1 | 0.8 | 0.1 | 余量 |
序号 | Tb | Al | Cu | Ga |
实施例3.1 | 98.5 | 0.5 | 0.5 | 0.5 |
实施例3.2 | 95 | 5 | 0 | 0 |
实施例3.3 | 95 | 0 | 5 | 0 |
实施例3.4 | 95 | 0 | 0 | 5 |
实施例3.5 | 70 | 10 | 10 | 10 |
实施例3.6 | 50 | 20 | 15 | 15 |
Claims (10)
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EP (1) | EP4024414A4 (zh) |
JP (1) | JP2023510819A (zh) |
KR (1) | KR102573802B1 (zh) |
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JPH0663086B2 (ja) * | 1985-09-27 | 1994-08-17 | 住友特殊金属株式会社 | 永久磁石材料及びその製造方法 |
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JP2010119190A (ja) * | 2008-11-12 | 2010-05-27 | Toyota Motor Corp | 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 |
MY174972A (en) * | 2011-05-02 | 2020-05-29 | Shinetsu Chemical Co | Rare earth permanent magnets and their preparation |
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2021
- 2021-01-20 KR KR1020227001371A patent/KR102573802B1/ko active IP Right Grant
- 2021-01-20 US US17/626,954 patent/US20220328245A1/en active Pending
- 2021-01-20 EP EP21744977.6A patent/EP4024414A4/en active Pending
- 2021-01-20 JP JP2022542453A patent/JP2023510819A/ja active Pending
- 2021-01-20 CN CN202110075964.2A patent/CN112908601B/zh active Active
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CN103227022A (zh) * | 2006-03-03 | 2013-07-31 | 日立金属株式会社 | R-Fe-B系烯土类烧结磁铁 |
US20100182113A1 (en) * | 2007-07-02 | 2010-07-22 | Hitachi Metals, Ltd. | R-Fe-B TYPE RARE EARTH SINTERED MAGNET AND PROCESS FOR PRODUCTION OF THE SAME |
CN101939804A (zh) * | 2008-12-04 | 2011-01-05 | 信越化学工业株式会社 | Nd基烧结磁体及其制造方法 |
CN103329220A (zh) * | 2011-01-19 | 2013-09-25 | 日立金属株式会社 | R-t-b系烧结磁体 |
CN108140482A (zh) * | 2016-09-26 | 2018-06-08 | 厦门钨业股份有限公司 | 一种R-Fe-B系稀土烧结磁铁的晶界扩散方法、HRE扩散源及其制备方法 |
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CN111653404A (zh) * | 2020-05-27 | 2020-09-11 | 烟台正海磁性材料股份有限公司 | 一种钕铁硼磁体及其制备方法和应用 |
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WO2021147908A1 (zh) | 2021-07-29 |
CN112908601B (zh) | 2024-03-19 |
EP4024414A1 (en) | 2022-07-06 |
KR102573802B1 (ko) | 2023-09-01 |
JP2023510819A (ja) | 2023-03-15 |
KR20220020948A (ko) | 2022-02-21 |
US20220328245A1 (en) | 2022-10-13 |
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