DE9018099U1 - Dauermagnet mit verbessertem Korrosionswiderstand - Google Patents

Dauermagnet mit verbessertem Korrosionswiderstand

Info

Publication number
DE9018099U1
DE9018099U1 DE9018099U DE9018099U DE9018099U1 DE 9018099 U1 DE9018099 U1 DE 9018099U1 DE 9018099 U DE9018099 U DE 9018099U DE 9018099 U DE9018099 U DE 9018099U DE 9018099 U1 DE9018099 U1 DE 9018099U1
Authority
DE
Germany
Prior art keywords
corrosion resistance
weight percent
nitrogen
permanent magnet
improved corrosion
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 - Lifetime
Application number
DE9018099U
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Crucible Materials Corp
Original Assignee
Crucible Materials Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=24016980&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE9018099(U1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Crucible Materials Corp filed Critical Crucible Materials Corp
Publication of DE9018099U1 publication Critical patent/DE9018099U1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • 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
DE9018099U 1990-04-10 1990-12-21 Dauermagnet mit verbessertem Korrosionswiderstand Expired - Lifetime DE9018099U1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/507,026 US5162064A (en) 1990-04-10 1990-04-10 Permanent magnet having improved corrosion resistance and method for producing the same
EP90313781A EP0466988B1 (de) 1990-04-10 1990-12-21 Dauermagnet mit verbessertem Korrosionswiderstand und Verfahren zur Herstellung desselben

Publications (1)

Publication Number Publication Date
DE9018099U1 true DE9018099U1 (de) 1995-06-01

Family

ID=24016980

Family Applications (2)

Application Number Title Priority Date Filing Date
DE9018099U Expired - Lifetime DE9018099U1 (de) 1990-04-10 1990-12-21 Dauermagnet mit verbessertem Korrosionswiderstand
DE69009753T Expired - Lifetime DE69009753D1 (de) 1990-04-10 1990-12-21 Dauermagnet mit verbessertem Korrosionswiderstand und Verfahren zur Herstellung desselben.

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE69009753T Expired - Lifetime DE69009753D1 (de) 1990-04-10 1990-12-21 Dauermagnet mit verbessertem Korrosionswiderstand und Verfahren zur Herstellung desselben.

Country Status (7)

Country Link
US (2) US5162064A (de)
EP (1) EP0466988B1 (de)
JP (1) JPH04242902A (de)
AT (1) ATE107077T1 (de)
CA (1) CA2031281A1 (de)
DE (2) DE9018099U1 (de)
DK (1) DK0466988T3 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19541948A1 (de) * 1995-11-10 1997-05-15 Schramberg Magnetfab Magnetmaterial und Dauermagnet des NdFeB-Typs

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5186765A (en) * 1989-07-31 1993-02-16 Kabushiki Kaisha Toshiba Cold accumulating material and method of manufacturing the same
US5162064A (en) * 1990-04-10 1992-11-10 Crucible Materials Corporation Permanent magnet having improved corrosion resistance and method for producing the same
GB9217760D0 (en) * 1992-08-21 1992-10-07 Martinex R & D Inc Permanent manget material containing a rare-earth element,iron,nitrogen & carbon
US5454998A (en) * 1994-02-04 1995-10-03 Ybm Technologies, Inc. Method for producing permanent magnet
US5486240A (en) * 1994-04-25 1996-01-23 Iowa State University Research Foundation, Inc. Carbide/nitride grain refined rare earth-iron-boron permanent magnet and method of making
US5480471A (en) * 1994-04-29 1996-01-02 Crucible Materials Corporation Re-Fe-B magnets and manufacturing method for the same
US5858123A (en) * 1995-07-12 1999-01-12 Hitachi Metals, Ltd. Rare earth permanent magnet and method for producing the same
US6022424A (en) * 1996-04-09 2000-02-08 Lockheed Martin Idaho Technologies Company Atomization methods for forming magnet powders
JP3779404B2 (ja) * 1996-12-05 2006-05-31 株式会社東芝 永久磁石材料、ボンド磁石およびモータ
AU8399198A (en) * 1997-07-11 1999-02-08 Aura Systems, Inc. High temperature passivation of rare earth magnets
US6332933B1 (en) 1997-10-22 2001-12-25 Santoku Corporation Iron-rare earth-boron-refractory metal magnetic nanocomposites
US6159308A (en) * 1997-12-12 2000-12-12 Hitachi Metals, Ltd. Rare earth permanent magnet and production method thereof
WO2000003403A1 (en) 1998-07-13 2000-01-20 Santoku America Inc. High performance iron-rare earth-boron-refractory-cobalt nanocomposites
EP1014392B9 (de) * 1998-12-15 2004-11-24 Shin-Etsu Chemical Co., Ltd. Auf Seltenerd/Eisen/Bor basierte Legierung für Dauermagnet
US6261515B1 (en) 1999-03-01 2001-07-17 Guangzhi Ren Method for producing rare earth magnet having high magnetic properties
US6818041B2 (en) * 2000-09-18 2004-11-16 Neomax Co., Ltd Magnetic alloy powder for permanent magnet and method for producing the same
AU2003291539A1 (en) * 2002-11-18 2004-06-15 Iowa State University Research Foundation, Inc. Permanent magnet alloy with improved high temperature performance
US20050062572A1 (en) * 2003-09-22 2005-03-24 General Electric Company Permanent magnet alloy for medical imaging system and method of making
CN1938795B (zh) * 2004-03-31 2012-05-02 Tdk株式会社 稀土类磁铁及其制造方法
WO2005123974A1 (ja) * 2004-06-22 2005-12-29 Shin-Etsu Chemical Co., Ltd. Ｒ－Ｆｅ－Ｂ系希土類永久磁石材料
US20070089806A1 (en) * 2005-10-21 2007-04-26 Rolf Blank Powders for rare earth magnets, rare earth magnets and methods for manufacturing the same
CN101615462B (zh) * 2009-05-26 2011-08-17 安徽大地熊新材料股份有限公司 含有微量氮RE-Fe-B系永磁材料的制备方法
US8821650B2 (en) * 2009-08-04 2014-09-02 The Boeing Company Mechanical improvement of rare earth permanent magnets
JP5494056B2 (ja) * 2010-03-16 2014-05-14 Ｔｄｋ株式会社 希土類焼結磁石、回転機及び往復動モータ
CN104766717B (zh) * 2014-01-07 2018-12-07 中国科学院宁波材料技术与工程研究所 一种提高烧结钕铁硼永磁体磁性能的方法
CN110957094B (zh) * 2019-12-23 2022-07-15 厦门优星电子科技有限公司 一种钕铁硼磁铁的烧结方法

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE268977C (de) *
DE3575231D1 (de) * 1984-02-28 1990-02-08 Sumitomo Spec Metals Verfahren zur herstellung von permanenten magneten.
JPS61208807A (ja) * 1985-03-13 1986-09-17 Hitachi Metals Ltd 永久磁石
US4588439A (en) * 1985-05-20 1986-05-13 Crucible Materials Corporation Oxygen containing permanent magnet alloy
JPH07107882B2 (ja) * 1985-09-12 1995-11-15 日立金属株式会社 永久磁石
JPS62119903A (ja) * 1985-11-19 1987-06-01 Shin Etsu Chem Co Ltd 希土類永久磁石の製造方法
JPS62133040A (ja) * 1985-12-05 1987-06-16 Shin Etsu Chem Co Ltd 希土類永久磁石の製造方法
JPS62151542A (ja) * 1985-12-25 1987-07-06 S C M:Kk 改良された永久磁石材料
JPS62165305A (ja) * 1986-01-16 1987-07-21 Hitachi Metals Ltd 熱安定性良好な永久磁石およびその製造方法
DE3684714D1 (de) * 1986-06-27 1992-05-07 Namiki Precision Jewel Co Ltd Verfahren zur herstellung von dauermagneten.
EP0255939B1 (de) * 1986-08-04 1993-07-28 Sumitomo Special Metals Co., Ltd. Seltenerdmagnet und Seltenerdlegierung-Magnetpulver mit grossem Korrosionswiderstand
JPH0668144B2 (ja) * 1986-08-04 1994-08-31 住友特殊金属株式会社 耐食性のすぐれた希土類磁石材料
DE3637521A1 (de) * 1986-11-04 1988-05-11 Schramberg Magnetfab Permanentmagnet und verfahren zu seiner herstellung
FR2610411B1 (fr) * 1987-02-04 1989-06-09 Sfim Procede et dispositif de mesure de la vitesse par rapport a l'air d'un helicoptere a basse vitesse
JP2791470B2 (ja) * 1987-06-01 1998-08-27 日立金属 株式会社 Ｒ−Ｂ−Ｆｅ系焼結磁石
US5162064A (en) * 1990-04-10 1992-11-10 Crucible Materials Corporation Permanent magnet having improved corrosion resistance and method for producing the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19541948A1 (de) * 1995-11-10 1997-05-15 Schramberg Magnetfab Magnetmaterial und Dauermagnet des NdFeB-Typs

Also Published As

Publication number Publication date
JPH04242902A (ja) 1992-08-31
DE69009753D1 (de) 1994-07-14
US5162064A (en) 1992-11-10
ATE107077T1 (de) 1994-06-15
EP0466988A2 (de) 1992-01-22
US5282904A (en) 1994-02-01
CA2031281A1 (en) 1991-10-11
EP0466988B1 (de) 1994-06-08
EP0466988A3 (en) 1992-06-17
DK0466988T3 (da) 1994-07-11

Similar Documents

Publication Publication Date Title
DE9018099U1 (de) Dauermagnet mit verbessertem Korrosionswiderstand
ATE176269T1 (de) Ofen russ mit niedrigem aschegehalt
ES2056373T3 (es) Aleacion a base de titanio, del tipo alfa-beta y que presentan una resistencia mecanica elevada.
FI950067A0 (fi) Neutraali, alhaisen läpäisevyyden omaava lasi
DE3660442D1 (en) Permanent magnet alloy
DE69903769D1 (de) Rostfreier austenitischer Stahl mit niedrigem Nickelgehalt
KR950012493A (ko) 영구자석제조용 분말조성물, 자기이방성 영구자석 및 자기이방성 연구자석의 제조방법
FR2430459A1 (fr) Acier amagnetique riche en manganese
DK0480314T3 (da) Polyoxymethylenstøbemasser med forbedret varmestabilitet og reduceret formaldehydmission
DE69711599T2 (de) Elektrischer drossel mit verteilte spalt
MY115968A (en) Dispersible carbon black pellets
ATE43932T1 (de) Dauermagnetlegierung.
DE69208624T2 (de) Selten-Erden-Verbundmagnet, Material dafür und Herstellungsverfahren eines gebundenen Magneten
CA2012294A1 (en) Magnetic devices with enhanced poles
AU2002361412A1 (en) Stabilising composition i
PH24280A (en) Antibiotic a 42867 and the addition salts thereof
NO307937B1 (no) Trestolpe
ZA866530B (en) Oculoselective beta-blockers
Kekalo et al. Time Instability of the Initial Permeability of the Amorphous Alloy Fe sub 5 Co sub 70 Si sub 15 B sub 10 After Various Forms of Magnetic Annealing
SU1665711A1 (ru) Сталь
Skulkina Anisotropy of Magnetic Properties of Isotropic Cold-Rolled Electrical-Engineering Steels
Sanai et al. Mn--Al--C Alloys for Anisotropic Permanent Magnets
DE3667761D1 (de) Loetzusammensetzungen.
Shulika et al. Quenching of the Amorphous Alloy Fe sub 5 Co sub 71 Si sub 15 B sub 9 in Magnetic Field and Its Influence on Residual Magnetization and Magnetic Losses
Wijn Magnetic Properties of Metals. Vol. i 2. Magnetic Alloys for Technical Applications. Hard Magnetic Alloys