CN101652821B - R-Fe-B系稀土类烧结磁铁及其制造方法 - Google Patents
R-Fe-B系稀土类烧结磁铁及其制造方法 Download PDFInfo
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- CN101652821B CN101652821B CN2008800110663A CN200880011066A CN101652821B CN 101652821 B CN101652821 B CN 101652821B CN 2008800110663 A CN2008800110663 A CN 2008800110663A CN 200880011066 A CN200880011066 A CN 200880011066A CN 101652821 B CN101652821 B CN 101652821B
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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
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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
- C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
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- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/24—After-treatment of workpieces or articles
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/02—Making ferrous alloys by powder metallurgy
- C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
- C22C33/0278—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5%
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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
- 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
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- H—ELECTRICITY
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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
- 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
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- 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
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- 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
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- 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
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/24—After-treatment of workpieces or articles
- B22F2003/248—Thermal after-treatment
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- 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
- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
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- 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
Abstract
Description
步长 | 0.2μm |
电子束电流 | 100nA |
测定元素数 | 5个元素 |
电子束直径 | 1μmΦ |
扫描时间 | 1秒 |
加速电压 | 15kV |
合金 | Nd | Dy | B | Co | Cu | Al | Fe |
Dy0% | 32.0 | 0 | 1.0 | 0.9 | 0.1 | 0.2 | ba l |
Dy2.5% | 29.5 | 2.5 | 1.0 | 0.9 | 0.1 | 0.2 | ba l |
Dy5.0% | 27.0 | 5.0 | 1.0 | 0.9 | 0.1 | 0.2 | ba l |
扩散处理条件 | 除去的表层部分的厚度 | |
A | 900℃×120min的蒸镀扩散法 | 100μm |
B | 850℃×240min的蒸镀扩散法 | 50μm |
C | 用溅射法进行的Dy成膜+900℃×120min的成膜后热处理 | 100μm |
样品 | Dy扩散层厚度(μm) | D1晶粒中央部的Dy量(质量%) | D2扩散层的Dy量(质量%) | Dy导入量(D1-D2)(质量%) | (Nd1-xDyx)zFe14B |
A1 | 1 | 0 | 11.6 | 11.6 | 0.38 |
B1 | 0.8 | 0 | 10.0 | 10.0 | 0.26 |
C1 | 超过2μm(扩散到主相中央部附近) | 0 | 11.5 | 11.5 | 0.37 |
A2 | 1 | 2.4 | 12.0 | 9.6 | 0.47 |
B2 | 0.8 | 2.4 | 10.8 | 8.4 | 0.40 |
A3 | 0.9 | 5.2 | 14.0 | 8.8 | 0.52 |
B3 | 0.7 | 5.2 | 13.2 | 8.0 | 0.49 |
合金 | Nd | Dy | B | Co | Cu | Al | Fe |
薄片D | 25.0 | 4.0 | 1.0 | 2.0 | 0.1 | 0.1 | ba l |
合金 | Nd | Pr | Dy | B | Co | Cu | Al | Fe |
薄片E | 25.0 | 6.0 | 1.0 | 1.0 | 0.9 | 0.1 | 0.1 | ba l |
Claims (18)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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JP2007174063 | 2007-07-02 | ||
JP174063/2007 | 2007-07-02 | ||
PCT/JP2008/001727 WO2009004794A1 (ja) | 2007-07-02 | 2008-07-01 | R-Fe-B系希土類焼結磁石およびその製造方法 |
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CN101652821A CN101652821A (zh) | 2010-02-17 |
CN101652821B true CN101652821B (zh) | 2013-06-12 |
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CN2008800110663A Active CN101652821B (zh) | 2007-07-02 | 2008-07-01 | R-Fe-B系稀土类烧结磁铁及其制造方法 |
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US (2) | US8187392B2 (zh) |
EP (1) | EP2169689B1 (zh) |
JP (1) | JP5509850B2 (zh) |
KR (1) | KR101495899B1 (zh) |
CN (1) | CN101652821B (zh) |
BR (1) | BRPI0813821B1 (zh) |
WO (1) | WO2009004794A1 (zh) |
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JP4811143B2 (ja) * | 2006-06-08 | 2011-11-09 | 日立金属株式会社 | R−Fe−B系希土類焼結磁石およびその製造方法 |
MY149353A (en) * | 2007-03-16 | 2013-08-30 | Shinetsu Chemical Co | Rare earth permanent magnet and its preparations |
WO2009004794A1 (ja) * | 2007-07-02 | 2009-01-08 | Hitachi Metals, Ltd. | R-Fe-B系希土類焼結磁石およびその製造方法 |
WO2009031292A1 (ja) * | 2007-09-04 | 2009-03-12 | Hitachi Metals, Ltd. | R-Fe-B系異方性焼結磁石 |
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2008
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- 2008-07-01 JP JP2009521523A patent/JP5509850B2/ja active Active
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- 2008-07-01 EP EP08790126.0A patent/EP2169689B1/en active Active
- 2008-07-01 KR KR1020097024737A patent/KR101495899B1/ko active IP Right Grant
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CN1251461A (zh) * | 1998-09-28 | 2000-04-26 | 索尼公司 | 用于具有叠加子信息的视频的数字记录/再现方法和装置 |
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WO2006112403A1 (ja) * | 2005-04-15 | 2006-10-26 | Hitachi Metals, Ltd. | 希土類焼結磁石とその製造方法 |
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KR101495899B1 (ko) | 2015-03-02 |
EP2169689B1 (en) | 2014-12-03 |
BRPI0813821B1 (pt) | 2018-08-07 |
US8187392B2 (en) | 2012-05-29 |
JP5509850B2 (ja) | 2014-06-04 |
US20120206227A1 (en) | 2012-08-16 |
CN101652821A (zh) | 2010-02-17 |
BRPI0813821A2 (pt) | 2015-01-06 |
US20100182113A1 (en) | 2010-07-22 |
KR20100027111A (ko) | 2010-03-10 |
US8945318B2 (en) | 2015-02-03 |
EP2169689A1 (en) | 2010-03-31 |
WO2009004794A1 (ja) | 2009-01-08 |
JPWO2009004794A1 (ja) | 2010-08-26 |
EP2169689A4 (en) | 2013-05-29 |
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