BR112017024247A2 - ?ímã permanente artificial e processo para produção do ímã permanente artificial? - Google Patents

?ímã permanente artificial e processo para produção do ímã permanente artificial?

Info

Publication number
BR112017024247A2
BR112017024247A2 BR112017024247A BR112017024247A BR112017024247A2 BR 112017024247 A2 BR112017024247 A2 BR 112017024247A2 BR 112017024247 A BR112017024247 A BR 112017024247A BR 112017024247 A BR112017024247 A BR 112017024247A BR 112017024247 A2 BR112017024247 A2 BR 112017024247A2
Authority
BR
Brazil
Prior art keywords
powder
particle size
average particle
main phase
permanent magnet
Prior art date
Application number
BR112017024247A
Other languages
English (en)
Other versions
BR112017024247B1 (pt
Inventor
Löwe Konrad
Skokov Konstantin
Gutfleisch Oliver
Fernengel Wilhelm
Original Assignee
Univ Darmstadt Tech
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 Univ Darmstadt Tech filed Critical Univ Darmstadt Tech
Publication of BR112017024247A2 publication Critical patent/BR112017024247A2/pt
Publication of BR112017024247B1 publication Critical patent/BR112017024247B1/pt

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
    • B22F1/05—Metallic powder characterised by the size or surface area of the particles
    • 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
    • H01F41/0273—Imparting anisotropy
    • 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
    • B22F2301/00—Metallic composition of the powder or its coating
    • B22F2301/35—Iron
    • B22F2301/355—Rare Earth - Fe intermetallic alloys
    • 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
    • B22F2304/00—Physical aspects of the powder
    • B22F2304/10—Micron size particles, i.e. above 1 micrometer up to 500 micrometer

Abstract

em um processo para a produção de um ímã permanente artificial são produzidos, em uma etapa de produção de pó, um pó da fase principal, que apresenta um composto de terras raras - metal de transição com propriedades magnéticas permanentes, com um primeiro tamanho médio de partículas, e um pó anisotrópico com um campo de força anisotrópico mais elevado do que o pó da fase principal com um segundo tamanho médio de partículas, sendo que o segundo tamanho médio de partículas é menor do que o primeiro tamanho médio de partículas. em uma etapa seguinte de produção de pó, o pó da fase principal e o pó anisotrópico são misturados um com o outro para formar uma mistura de pó e, em uma etapa de tratamento térmico seguinte, essa mistura em pó é sinterizada com o pó da fase principal com o primeiro tamanho médio de partícula e com o pó anisotrópico com o segundo tamanho médio de partículas para formar um ímã permanente artificial (5). o pó da fase principal contém, de preferência, um composto se2(fe,x)14b, sendo que os elementos de terras raras são designados por se, por fe é designado ferro, por b boro e por x é designado um elemento químico qualquer, inclusive ferro ou quaisquer outros elementos químicos. o tamanho médio das partículas do pó da fase principal de maneira vantajosa é mais de 50 % maior do que o segundo tamanho médio das partículas, de preferência mais do que 100 % maior do que o segundo tamanho médio das partículas do pó anisotrópico.
BR112017024247-8A 2015-05-12 2016-05-12 Ímã permanente artificial e processo para produção do ímã permanente artificial BR112017024247B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102015107486.9A DE102015107486A1 (de) 2015-05-12 2015-05-12 Künstlicher Dauermagnet und Verfahren zur Herstellung des künstlichen Dauermagneten
DE102015107486.9 2015-05-12
PCT/EP2016/060633 WO2016180912A1 (de) 2015-05-12 2016-05-12 Künstlicher dauermagnet und verfahren zur herstellung des künstlichen dauermagneten

Publications (2)

Publication Number Publication Date
BR112017024247A2 true BR112017024247A2 (pt) 2018-07-24
BR112017024247B1 BR112017024247B1 (pt) 2022-08-23

Family

ID=56096607

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112017024247-8A BR112017024247B1 (pt) 2015-05-12 2016-05-12 Ímã permanente artificial e processo para produção do ímã permanente artificial

Country Status (6)

Country Link
US (1) US11087907B2 (pt)
EP (1) EP3295463A1 (pt)
CN (1) CN107851497B (pt)
BR (1) BR112017024247B1 (pt)
DE (1) DE102015107486A1 (pt)
WO (1) WO2016180912A1 (pt)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11637636B2 (en) 2019-05-31 2023-04-25 Nec Corporation Receiving optical system control device and receiving optical system control method
KR20210125316A (ko) 2020-04-08 2021-10-18 현대자동차주식회사 희토류 영구자석 및 그 제조방법

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3092672B2 (ja) * 1991-01-30 2000-09-25 三菱マテリアル株式会社 希土類−Ｆｅ−Ｃｏ−Ｂ系異方性磁石
US5387291A (en) * 1992-03-19 1995-02-07 Sumitomo Special Metals Co., Ltd. Process for producing alloy powder material for R-Fe-B permanent magnets and alloy powder for adjusting the composition therefor
WO2004094090A1 (ja) * 2003-04-22 2004-11-04 Neomax Co. Ltd. 希土類合金粉末の製造方法および希土類焼結磁石の製造方法
US7357880B2 (en) * 2003-10-10 2008-04-15 Aichi Steel Corporation Composite rare-earth anisotropic bonded magnet, composite rare-earth anisotropic bonded magnet compound, and methods for their production
WO2006004998A2 (en) * 2004-06-30 2006-01-12 University Of Dayton Anisotropic nanocomposite rare earth permanent magnets and method of making
WO2006098204A1 (ja) * 2005-03-14 2006-09-21 Tdk Corporation Ｒ－ｔ－ｂ系焼結磁石
US9082538B2 (en) * 2008-12-01 2015-07-14 Zhejiang University Sintered Nd—Fe—B permanent magnet with high coercivity for high temperature applications
JP5267800B2 (ja) * 2009-02-27 2013-08-21 ミネベア株式会社 自己修復性希土類−鉄系磁石
CN103093911B (zh) * 2013-01-25 2016-08-10 江苏东瑞磁材科技有限公司 一种烧结稀土永磁体的粉末
DE102014103210B4 (de) * 2013-03-15 2020-03-19 GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) Herstellen von nd-fe-b-magneten unter verwendung von heisspressen mit verringertem dysprosium oder terbium
US10186374B2 (en) * 2013-03-15 2019-01-22 GM Global Technology Operations LLC Manufacturing Nd—Fe—B magnets using hot pressing with reduced dysprosium or terbium
CN104752013A (zh) * 2013-12-27 2015-07-01 比亚迪股份有限公司 一种稀土永磁材料及其制备方法
CN103996522B (zh) * 2014-05-11 2016-06-15 沈阳中北通磁科技股份有限公司 一种含Ce的钕铁硼稀土永磁体的制造方法

Also Published As

Publication number Publication date
CN107851497B (zh) 2020-06-19
DE102015107486A1 (de) 2016-11-17
US11087907B2 (en) 2021-08-10
CN107851497A (zh) 2018-03-27
WO2016180912A1 (de) 2016-11-17
BR112017024247B1 (pt) 2022-08-23
US20180211749A1 (en) 2018-07-26
EP3295463A1 (de) 2018-03-21

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Legal Events

Date Code Title Description
B06U Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 12/05/2016, OBSERVADAS AS CONDICOES LEGAIS