DE69316047D1 - Vorlegierung zur Herstellung von Magneten und deren Produktion sowie Magnet-Herstellung - Google Patents

Vorlegierung zur Herstellung von Magneten und deren Produktion sowie Magnet-Herstellung

Info

Publication number
DE69316047D1
DE69316047D1 DE69316047T DE69316047T DE69316047D1 DE 69316047 D1 DE69316047 D1 DE 69316047D1 DE 69316047 T DE69316047 T DE 69316047T DE 69316047 T DE69316047 T DE 69316047T DE 69316047 D1 DE69316047 D1 DE 69316047D1
Authority
DE
Germany
Prior art keywords
production
magnets
well
magnet
master alloy
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
DE69316047T
Other languages
English (en)
Other versions
DE69316047T2 (de
Inventor
Katashi Takebuchi
Koichi Yajima
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.)
TDK Corp
Original Assignee
TDK 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
Application filed by TDK Corp filed Critical TDK Corp
Publication of DE69316047D1 publication Critical patent/DE69316047D1/de
Application granted granted Critical
Publication of DE69316047T2 publication Critical patent/DE69316047T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • 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
    • H01F1/0573—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
    • 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
    • H01F1/0574—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 liquid dynamic compaction
    • 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
DE69316047T 1992-02-21 1993-02-18 Vorlegierung zur Herstellung von Magneten und deren Produktion sowie Magnet-Herstellung Expired - Lifetime DE69316047T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP7258292 1992-02-21
JP34550192A JP3932143B2 (ja) 1992-02-21 1992-12-01 磁石の製造方法

Publications (2)

Publication Number Publication Date
DE69316047D1 true DE69316047D1 (de) 1998-02-12
DE69316047T2 DE69316047T2 (de) 1998-06-04

Family

ID=26413711

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69316047T Expired - Lifetime DE69316047T2 (de) 1992-02-21 1993-02-18 Vorlegierung zur Herstellung von Magneten und deren Produktion sowie Magnet-Herstellung

Country Status (4)

Country Link
US (1) US5431747A (de)
EP (1) EP0557103B1 (de)
JP (1) JP3932143B2 (de)
DE (1) DE69316047T2 (de)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0556751B1 (de) * 1992-02-15 1998-06-10 Santoku Metal Industry Co., Ltd. Legierungsblock für einen Dauermagnet, anisotropes Pulver für einen Dauermagnet, Verfahren zur Herstellung eines solchen und Dauermagneten
EP1073069A1 (de) * 1993-11-02 2001-01-31 TDK Corporation Herstellung eines Dauermagnets
US5486224A (en) * 1993-12-28 1996-01-23 Sumitomo Metal Industries, Ltd. Powder mixture for use in compaction to produce rare earth iron sintered permanent magnets
US5858123A (en) * 1995-07-12 1999-01-12 Hitachi Metals, Ltd. Rare earth permanent magnet and method for producing the same
TW446690B (en) 1998-06-22 2001-07-21 Showa Denko Kk Refractories for casting a rare-earth alloy, their production method, and method for casting an rare-earth alloy
US6302939B1 (en) 1999-02-01 2001-10-16 Magnequench International, Inc. Rare earth permanent magnet and method for making same
US6403024B1 (en) 1999-02-19 2002-06-11 Sumitomo Special Metals Co., Ltd. Hydrogen pulverizer for rare-earth alloy magnetic material powder using the pulverizer, and method for producing magnet using the pulverizer
JP2002088403A (ja) * 2000-03-08 2002-03-27 Sumitomo Special Metals Co Ltd 希土類合金磁性粉末成形体の作製方法および希土類磁石の製造方法
JP3233359B2 (ja) 2000-03-08 2001-11-26 住友特殊金属株式会社 希土類合金磁性粉末成形体の作製方法および希土類磁石の製造方法
AU2001282578A1 (en) 2000-08-31 2002-03-13 Showa Denko K K Centrifugal casting method, centrifugal casting apparatus, and cast alloy produced by same
KR100771676B1 (ko) * 2000-10-04 2007-10-31 가부시키가이샤 네오맥스 희토류 소결자석 및 그 제조방법
WO2002072900A2 (en) * 2001-03-12 2002-09-19 Showa Denko K.K. Method for controlling structure of rare earth element-containing alloy, powder material of the alloy and magnet using the same
US7442262B2 (en) 2001-12-18 2008-10-28 Showa Denko K.K. Alloy flake for rare earth magnet, production method thereof, alloy powder for rare earth sintered magnet, rare earth sintered magnet, alloy powder for bonded magnet and bonded magnet
US7014915B2 (en) * 2002-08-20 2006-03-21 The Boeing Company Controlled binary macrosegregated powder particles, their uses, and preparation methods therefor
US7199690B2 (en) * 2003-03-27 2007-04-03 Tdk Corporation R-T-B system rare earth permanent magnet
US20050062572A1 (en) * 2003-09-22 2005-03-24 General Electric Company Permanent magnet alloy for medical imaging system and method of making
US20050098239A1 (en) * 2003-10-15 2005-05-12 Neomax Co., Ltd. R-T-B based permanent magnet material alloy and R-T-B based permanent magnet
WO2005098878A2 (en) 2004-04-07 2005-10-20 Showa Denko K.K. Alloy lump for r-t-b type sintered magnet, producing method thereof, and magnet
US20060165550A1 (en) 2005-01-25 2006-07-27 Tdk Corporation Raw material alloy for R-T-B system sintered magnet, R-T-B system sintered magnet and production method thereof
US20100230013A1 (en) * 2007-12-13 2010-09-16 Showa Denko K.K. R-t-b alloy, process for production of r-t-b alloy, fine powder for r-t-b rare earth permanent magnets, and r-t-b rare earth permanent magnet
JP5103428B2 (ja) * 2009-03-30 2012-12-19 インターメタリックス株式会社 希土類焼結磁石製造方法
DE112012004288T5 (de) * 2011-10-13 2014-07-31 Tdk Corporation R-T-B-basiertes Legierungsband, R-T-B-basierter gesinterter Magnet und Verfahren zu deren Herstellung
CN102982936B (zh) * 2012-11-09 2015-09-23 厦门钨业股份有限公司 烧结Nd-Fe-B系磁铁的省却工序的制作方法
EP3790029A1 (de) 2013-06-17 2021-03-10 Urban Mining Technology Company, LLC Magnetrecycling zur erzeugung von nd-fe-b-magneten mit verbesserter oder regenerierter magnetischer leistung
CN104674115A (zh) 2013-11-27 2015-06-03 厦门钨业股份有限公司 一种低b的稀土磁铁
CN104952574A (zh) 2014-03-31 2015-09-30 厦门钨业股份有限公司 一种含W的Nd-Fe-B-Cu系烧结磁铁
CN105321647B (zh) * 2014-07-30 2018-02-23 厦门钨业股份有限公司 稀土磁铁用急冷合金和稀土磁铁的制备方法
US9336932B1 (en) 2014-08-15 2016-05-10 Urban Mining Company Grain boundary engineering

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5946008A (ja) * 1982-08-21 1984-03-15 Sumitomo Special Metals Co Ltd 永久磁石
JPS6017905A (ja) * 1983-07-08 1985-01-29 Sumitomo Special Metals Co Ltd 永久磁石用合金粉末
US4541877A (en) * 1984-09-25 1985-09-17 North Carolina State University Method of producing high performance permanent magnets
JPS6233402A (ja) * 1985-08-07 1987-02-13 Tohoku Metal Ind Ltd 希土類磁石の製造方法
JPH07123083B2 (ja) * 1986-03-03 1995-12-25 セイコーエプソン株式会社 鋳造希土類―鉄系永久磁石の製造方法
US4769063A (en) * 1986-03-06 1988-09-06 Sumitomo Special Metals Co., Ltd. Method for producing rare earth alloy
JP2587617B2 (ja) * 1986-03-17 1997-03-05 セイコーエプソン株式会社 希土類永久磁石の製造方法
JPS62262403A (ja) * 1986-05-09 1987-11-14 Seiko Epson Corp 希土類永久磁石の製造方法
FR2607520B1 (fr) * 1986-11-27 1992-06-19 Comurhex Procede d'elaboration par metallothermie d'alliages purs a base de terres rares et de metaux de transition
ATE109921T1 (de) * 1987-04-30 1994-08-15 Seiko Epson Corp Dauermagnet und sein herstellungsverfahren.
JPH01103805A (ja) * 1987-07-30 1989-04-20 Tdk Corp 永久磁石
US5049335A (en) * 1989-01-25 1991-09-17 Massachusetts Institute Of Technology Method for making polycrystalline flakes of magnetic materials having strong grain orientation
JPH03151141A (ja) * 1989-11-08 1991-06-27 Fukushima Pref Gov 希土類系異方性磁性材料の徐冷薄帯製造法
JP2782024B2 (ja) * 1992-01-29 1998-07-30 住友特殊金属株式会社 Ｒ−Ｆｅ−Ｂ系永久磁石用原料粉末の製造方法

Also Published As

Publication number Publication date
US5431747A (en) 1995-07-11
EP0557103B1 (de) 1998-01-07
EP0557103A1 (de) 1993-08-25
JPH05295490A (ja) 1993-11-09
JP3932143B2 (ja) 2007-06-20
DE69316047T2 (de) 1998-06-04

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