DE69503957D1 - SE-Fe-B Magneten und ihrer Herstellungsverfahren - Google Patents

SE-Fe-B Magneten und ihrer Herstellungsverfahren

Info

Publication number
DE69503957D1
DE69503957D1 DE69503957T DE69503957T DE69503957D1 DE 69503957 D1 DE69503957 D1 DE 69503957D1 DE 69503957 T DE69503957 T DE 69503957T DE 69503957 T DE69503957 T DE 69503957T DE 69503957 D1 DE69503957 D1 DE 69503957D1
Authority
DE
Germany
Prior art keywords
magnets
manufacturing processes
processes
manufacturing
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
DE69503957T
Other languages
English (en)
Other versions
DE69503957T3 (de
DE69503957T2 (de
Inventor
Andrew S Kim
Floyd E Camp
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.)
Vacuumschmelze GmbH and Co KG
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=22884842&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69503957(D1) "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
Application granted granted Critical
Publication of DE69503957D1 publication Critical patent/DE69503957D1/de
Publication of DE69503957T2 publication Critical patent/DE69503957T2/de
Publication of DE69503957T3 publication Critical patent/DE69503957T3/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
    • 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
    • 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
    • H01F1/03—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
    • H01F1/0572—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 with a protective layer

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Power Engineering (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Hard Magnetic Materials (AREA)
DE69503957T 1994-04-29 1995-04-27 SE-Fe-B Magneten und ihrer Herstellungsverfahren Expired - Lifetime DE69503957T3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/235,279 US5480471A (en) 1994-04-29 1994-04-29 Re-Fe-B magnets and manufacturing method for the same
US235279 1994-04-29

Publications (3)

Publication Number Publication Date
DE69503957D1 true DE69503957D1 (de) 1998-09-17
DE69503957T2 DE69503957T2 (de) 1999-01-14
DE69503957T3 DE69503957T3 (de) 2004-12-16

Family

ID=22884842

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69503957T Expired - Lifetime DE69503957T3 (de) 1994-04-29 1995-04-27 SE-Fe-B Magneten und ihrer Herstellungsverfahren

Country Status (4)

Country Link
US (2) US5480471A (de)
EP (1) EP0680054B2 (de)
DE (1) DE69503957T3 (de)
TW (1) TW378234B (de)

Families Citing this family (14)

* 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
JPH11307327A (ja) * 1998-04-22 1999-11-05 Sanei Kasei Kk 永久磁石用組成物
US6572639B1 (en) 1998-07-31 2003-06-03 Surx, Inc. Interspersed heating/cooling to shrink tissues for incontinence
DE19842791C2 (de) * 1998-09-18 2000-11-16 Vacuumschmelze Gmbh Verwendung eines Abgußverfahrens zur Bereitstellung von Ausgangsmaterial zur Herstellung von hartmagnetischen Werkstoffen
DE69916764T2 (de) * 1998-12-15 2005-03-31 Shin-Etsu Chemical Co., Ltd. Auf Seltenerd/Eisen/Bor basierte Legierung für Dauermagnet
US6657188B1 (en) * 1999-08-17 2003-12-02 Randall Gardner Hulet Method and apparatus for magnetically guiding neutral particles
DE19945942C2 (de) * 1999-09-24 2003-07-17 Vacuumschmelze Gmbh Verfahren zur Herstellung von Dauermagneten aus einer borarmen Nd-Fe-B-Legierung
US6648984B2 (en) * 2000-09-28 2003-11-18 Sumitomo Special Metals Co., Ltd. Rare earth magnet and method for manufacturing the same
KR100771676B1 (ko) * 2000-10-04 2007-10-31 가부시키가이샤 네오맥스 희토류 소결자석 및 그 제조방법
TWI253956B (en) * 2001-11-16 2006-05-01 Shinetsu Chemical Co Crucible for melting rare earth element alloy and rare earth element alloy
US20050062572A1 (en) * 2003-09-22 2005-03-24 General Electric Company Permanent magnet alloy for medical imaging system and method of making
US20070089806A1 (en) 2005-10-21 2007-04-26 Rolf Blank Powders for rare earth magnets, rare earth magnets and methods for manufacturing the same
EP3442726B1 (de) 2016-04-11 2023-01-04 AP&C Advanced Powders And Coatings Inc. Flugwärmebehandlungsverfahren für reaktive metallpulver
CN112341181A (zh) * 2020-11-17 2021-02-09 湖南航天磁电有限责任公司 一种提高永磁铁氧体磁性能的方法

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3885995A (en) * 1973-04-10 1975-05-27 Boeing Co Process for carburizing high alloy steels
JPS5314133A (en) * 1976-07-26 1978-02-08 Komatsu Mfg Co Ltd Process for generating grain boundary oxidation by vacuum carburizing
JPS5927905B2 (ja) * 1979-12-25 1984-07-09 京セラミタ株式会社 静電写真複写方法
GB8310102D0 (en) * 1983-04-14 1983-05-18 Lucas Ind Plc Corrosion resistant steel components
US4767450A (en) * 1984-11-27 1988-08-30 Sumitomo Special Metals Co., Ltd. Process for producing the rare earth alloy powders
JPS61214402A (ja) * 1985-03-19 1986-09-24 Hitachi Metals Ltd 焼結磁石の製造方法
US4769063A (en) * 1986-03-06 1988-09-06 Sumitomo Special Metals Co., Ltd. Method for producing rare earth alloy
US5230751A (en) * 1986-07-23 1993-07-27 Hitachi Metals, Ltd. Permanent magnet with good thermal stability
JPH01208813A (ja) * 1988-02-17 1989-08-22 Matsushita Electric Ind Co Ltd 希土類磁石の製造方法
JP3037699B2 (ja) † 1988-09-30 2000-04-24 日立金属株式会社 耐割れ性及び配向性を改善した温間加工磁石ならびにその製造方法
US5122203A (en) * 1989-06-13 1992-06-16 Sps Technologies, Inc. Magnetic materials
FR2655355B1 (fr) * 1989-12-01 1993-06-18 Aimants Ugimag Sa Alliage pour aimant permanent type fe nd b, aimant permanent fritte et procede d'obtention.
US5200001A (en) † 1989-12-01 1993-04-06 Sumitomo Special Metals Co., Ltd. Permanent magnet
JP3009687B2 (ja) * 1989-12-15 2000-02-14 住友特殊金属株式会社 高耐食性焼結永久磁石材料の製造方法
US5162064A (en) * 1990-04-10 1992-11-10 Crucible Materials Corporation Permanent magnet having improved corrosion resistance and method for producing the same
JP3059188B2 (ja) † 1990-04-25 2000-07-04 ティーディーケイ株式会社 永久磁石の製造方法および永久磁石
JP2740981B2 (ja) * 1990-09-06 1998-04-15 同和鉱業株式会社 不可逆減磁の小さい熱安定性に優れたＲ‐Ｆｅ‐Ｃｏ‐Ｂ‐Ｃ系永久磁石合金
WO1992005902A1 (en) * 1990-10-09 1992-04-16 Iowa State University Research Foundation, Inc. Environmentally stable reactive alloy powders and method of making same
JPH04184901A (ja) * 1990-11-20 1992-07-01 Shin Etsu Chem Co Ltd 希土類鉄系永久磁石およびその製造方法
US5091020A (en) * 1990-11-20 1992-02-25 Crucible Materials Corporation Method and particle mixture for making rare earth element, iron and boron permanent sintered magnets
EP0517355A1 (de) * 1991-06-07 1992-12-09 Crucible Materials Corporation Korrosionsbeständige Dauermagnetlegierung und Verfahren zur Herstellung eines Dauermagneten daraus
JPH06151137A (ja) * 1992-11-13 1994-05-31 Mitsubishi Materials Corp 異方性に優れた希土類磁石材料粉末

Also Published As

Publication number Publication date
DE69503957T3 (de) 2004-12-16
US5589009A (en) 1996-12-31
TW378234B (en) 2000-01-01
DE69503957T2 (de) 1999-01-14
EP0680054B2 (de) 2004-03-31
EP0680054B1 (de) 1998-08-12
EP0680054A1 (de) 1995-11-02
US5480471A (en) 1996-01-02

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8366 Restricted maintained after opposition proceedings
8327 Change in the person/name/address of the patent owner

Owner name: VACUUMSCHMELZE GMBH & CO. KG, 63450 HANAU, DE