CN1044940C - 基于钕铁硼的生产永久磁铁的方法 - Google Patents
基于钕铁硼的生产永久磁铁的方法 Download PDFInfo
- Publication number
- CN1044940C CN1044940C CN93109275A CN93109275A CN1044940C CN 1044940 C CN1044940 C CN 1044940C CN 93109275 A CN93109275 A CN 93109275A CN 93109275 A CN93109275 A CN 93109275A CN 1044940 C CN1044940 C CN 1044940C
- Authority
- CN
- China
- Prior art keywords
- powder
- ndfeb
- alloy
- particle size
- magnet
- 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
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
-
- 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
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/09—Mixtures of metallic powders
Landscapes
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Hard Magnetic Materials (AREA)
- Powder Metallurgy (AREA)
Abstract
Description
Claims (6)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP92202498.9 | 1992-08-13 | ||
EP92202498 | 1992-08-13 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1086923A CN1086923A (zh) | 1994-05-18 |
CN1044940C true CN1044940C (zh) | 1999-09-01 |
Family
ID=8210852
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN93109275A Expired - Fee Related CN1044940C (zh) | 1992-08-13 | 1993-08-10 | 基于钕铁硼的生产永久磁铁的方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US6045751A (zh) |
JP (1) | JP3524941B2 (zh) |
CN (1) | CN1044940C (zh) |
DE (1) | DE69307970T2 (zh) |
TW (1) | TW245803B (zh) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19636284C2 (de) * | 1996-09-06 | 1998-07-16 | Vacuumschmelze Gmbh | SE-Fe-B-Dauermagnet und Verfahren zu seiner Herstellung |
KR100352481B1 (ko) * | 2000-07-21 | 2002-09-11 | 한국과학기술연구원 | NdFeB계 소결 자석 및 그 제조 방법 |
US20050062572A1 (en) * | 2003-09-22 | 2005-03-24 | General Electric Company | Permanent magnet alloy for medical imaging system and method of making |
DE112006000070T5 (de) * | 2005-07-15 | 2008-08-14 | Hitachi Metals, Ltd. | Seltenerdmetall-Sintermagnet und Verfahren zu seiner Herstellung |
CN103887028B (zh) * | 2012-12-24 | 2017-07-28 | 北京中科三环高技术股份有限公司 | 一种烧结钕铁硼磁体及其制造方法 |
CN103137314B (zh) * | 2013-03-25 | 2015-12-02 | 安徽大地熊新材料股份有限公司 | 一种制备稀土-铁-硼永磁体的方法 |
JP7021578B2 (ja) * | 2017-03-30 | 2022-02-17 | 日立金属株式会社 | R-t-b系焼結磁石の製造方法 |
CN112712955B (zh) * | 2020-12-23 | 2023-02-17 | 安徽大地熊新材料股份有限公司 | 烧结钕铁硼磁体及其制备方法 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0447567A1 (en) * | 1989-10-12 | 1991-09-25 | Kawasaki Steel Corporation | Corrosion-resistant tm-b-re type magnet and method of production thereof |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL8500534A (nl) * | 1985-02-26 | 1986-09-16 | Philips Nv | Magnetisch materiaal bevattende een intermetallische verbinding van het zeldzame aarden-overgangsmetaal type. |
US4762574A (en) * | 1985-06-14 | 1988-08-09 | Union Oil Company Of California | Rare earth-iron-boron premanent magnets |
NL8600647A (nl) * | 1986-03-13 | 1987-10-01 | Philips Nv | Magneto-optisch registratie-element en een magneto-optische registratie-inrichting. |
US4747874A (en) * | 1986-05-30 | 1988-05-31 | Union Oil Company Of California | Rare earth-iron-boron permanent magnets with enhanced coercivity |
DE3774333D1 (de) * | 1986-06-16 | 1991-12-12 | Tokin Corp | Dauermagnet-material und verfahren zur herstellung. |
DE3777523D1 (de) * | 1986-10-10 | 1992-04-23 | Philips Nv | Magnetisches material aus eisen, bor und seltenerdmetall. |
US5004499A (en) * | 1987-11-02 | 1991-04-02 | Union Oil Company Of California | Rare earth-iron-boron compositions for polymer-bonded magnets |
JPH01225101A (ja) * | 1988-03-04 | 1989-09-08 | Shin Etsu Chem Co Ltd | 希土類永久磁石 |
US4931092A (en) * | 1988-12-21 | 1990-06-05 | The Dow Chemical Company | Method for producing metal bonded magnets |
US5240627A (en) * | 1990-07-24 | 1993-08-31 | Kanegafuchi Kagaku Kogyo Kabushiki Kaisha | Bonded rare earth magnet and a process for manufacturing the same |
JPH04127405A (ja) * | 1990-09-18 | 1992-04-28 | Kanegafuchi Chem Ind Co Ltd | 高耐蝕性永久磁石及びその製造方法並びに高耐蝕性ボンド磁石の製造方法 |
-
1993
- 1993-08-10 CN CN93109275A patent/CN1044940C/zh not_active Expired - Fee Related
- 1993-08-11 US US08/105,820 patent/US6045751A/en not_active Expired - Lifetime
- 1993-08-11 DE DE69307970T patent/DE69307970T2/de not_active Expired - Fee Related
- 1993-08-13 JP JP20159693A patent/JP3524941B2/ja not_active Expired - Fee Related
- 1993-09-01 TW TW082107144A patent/TW245803B/zh active
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0447567A1 (en) * | 1989-10-12 | 1991-09-25 | Kawasaki Steel Corporation | Corrosion-resistant tm-b-re type magnet and method of production thereof |
Also Published As
Publication number | Publication date |
---|---|
CN1086923A (zh) | 1994-05-18 |
TW245803B (zh) | 1995-04-21 |
DE69307970T2 (de) | 1997-07-24 |
JPH06188113A (ja) | 1994-07-08 |
DE69307970D1 (de) | 1997-03-20 |
US6045751A (en) | 2000-04-04 |
JP3524941B2 (ja) | 2004-05-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C53 | Correction of patent of invention or patent application | ||
CB02 | Change of applicant information |
Applicant after: N.V. Philips' Gloeipenfabrieken Applicant before: Philips Electronics N. V. |
|
COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: N.V. PHILIPS OPTICAL LAMP LTD., CO. TO: N.V. PHILIPS OPTICAL LAMP MANUFACTURING COMPANY |
|
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C53 | Correction of patent of invention or patent application | ||
COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: ROYAL PHILIPS ELECTRONICS CO., LTD. TO: YBM MAIGENGES CO., LTD. |
|
CP03 | Change of name, title or address |
Address after: American Pennsylvania Applicant after: YBM Mycnacs Co. Address before: Holland Ian Deho Finn Applicant before: Koninklike Philips Electronics N. V. |
|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: VACUUM MELTING JIONT LIABILITY CO.,LTD. Free format text: FORMER OWNER: YBM MAIGENGES CO., LTD. Effective date: 20031229 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20031229 Address after: Federal Republic of Germany, Kazakhstan Patentee after: Vacuumschmelze GmbH & Co. KG Address before: American Pennsylvania Patentee before: YBM Mycnacs Co. |
|
C19 | Lapse of patent right due to non-payment of the annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |