BRPI0702846A - método para a preparação de material de magneto permanente de terras raras - Google Patents

método para a preparação de material de magneto permanente de terras raras

Info

Publication number
BRPI0702846A
BRPI0702846A BRPI0702846-6A BRPI0702846A BRPI0702846A BR PI0702846 A BRPI0702846 A BR PI0702846A BR PI0702846 A BRPI0702846 A BR PI0702846A BR PI0702846 A BRPI0702846 A BR PI0702846A
Authority
BR
Brazil
Prior art keywords
rare earth
permanent magnet
earth permanent
magnet material
powder
Prior art date
Application number
BRPI0702846-6A
Other languages
English (en)
Inventor
Hajime Nakamura
Takehisa Minowa
Koichi Hirota
Original Assignee
Shinetsu Chemical Co
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 Shinetsu Chemical Co filed Critical Shinetsu Chemical Co
Publication of BRPI0702846A publication Critical patent/BRPI0702846A/pt
Publication of BRPI0702846B1 publication Critical patent/BRPI0702846B1/pt

Links

Classifications

    • 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
    • B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
    • B22F7/02—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers
    • 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
    • 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
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/24—After-treatment of workpieces or articles
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D6/00—Heat treatment of ferrous alloys
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
    • 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
    • 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
    • H01F1/06—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 in the form of particles, e.g. powder
    • H01F1/08—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 in the form of particles, e.g. powder pressed, sintered, or bound together
    • 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
    • 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
    • H01F41/0293—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 diffusion of rare earth elements, e.g. Tb, Dy or Ho, into permanent magnets

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Composite Materials (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Hard Magnetic Materials (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
  • Powder Metallurgy (AREA)

Abstract

MéTODO PARA A PREPARAçãO DE MATERIAL DE MAGNETO PERMANENTE DE TERRAS RARAS Método para a preparação de um material de magneto permanente de terras raras que compreende as etapas de colocação de um pó sobre uma superfície de um corpo de magneto sinterizado com a composição R¬ 1¬ ~ a~T~ b~A~ c~M~ d~ onde R¬ 1¬ é um elemento de terras raras, inclusive de SC e Y, e T é Fe e/ou Co, A é boro (B) e/ou carbono (C), M é Al, Cu, Zn, In, Si, P, S, Ti, V, Cr, Mn, Ni, Ga, Ge, Zr, Nb, Mo , Pd, Ag, Cd, Sn, Sb, Hf, Ta, ou W, o referido pó sendo composto de um óxido de R¬ 2¬, um fluoreto de R¬ 3¬ ou um oxifluoreto de R¬ 4¬ , onde R¬ 2¬, R¬ 3¬, e R¬ 4¬ são elementos de terras raras, inclusive de Sc e Y e tendo um tamanho médio de partícula igual ou menor do que 100 micrometros, o tratamento térmico do corpo do magneto e do pó em uma temperatura igual ou inferior à temperatura de sinterização do corpo do magneto para o tratamento por absorção, para fazer com que R¬ 2¬, R¬ 3¬, e R¬ 4¬ no pó sejam absorvidos no corpo do magneto, e a repetição do tratamento por absorção pelo menos duas vezes. De acordo com a invenção, um material de magneto permanente de terras raras pode ser preparado como um magneto sinterizado R-Fe-B com um alto desempenho e uma quantidade mínima utilizada de Tb ou de Dy.
BRPI0702846A 2006-04-14 2007-03-28 método para a preparação de material de magneto permanente de terras raras BRPI0702846B1 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006112286A JP4753030B2 (ja) 2006-04-14 2006-04-14 希土類永久磁石材料の製造方法
PCT/JP2007/056594 WO2007119553A1 (ja) 2006-04-14 2007-03-28 希土類永久磁石材料の製造方法

Publications (2)

Publication Number Publication Date
BRPI0702846A true BRPI0702846A (pt) 2008-04-01
BRPI0702846B1 BRPI0702846B1 (pt) 2016-11-16

Family

ID=38609328

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0702846A BRPI0702846B1 (pt) 2006-04-14 2007-03-28 método para a preparação de material de magneto permanente de terras raras

Country Status (10)

Country Link
US (1) US8075707B2 (pt)
EP (1) EP1900462B1 (pt)
JP (1) JP4753030B2 (pt)
KR (1) KR101310401B1 (pt)
CN (1) CN101316674B (pt)
BR (1) BRPI0702846B1 (pt)
MY (1) MY146583A (pt)
RU (1) RU2417139C2 (pt)
TW (1) TWI421886B (pt)
WO (1) WO2007119553A1 (pt)

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JP4656325B2 (ja) * 2005-07-22 2011-03-23 信越化学工業株式会社 希土類永久磁石、その製造方法、並びに永久磁石回転機
US7559996B2 (en) * 2005-07-22 2009-07-14 Shin-Etsu Chemical Co., Ltd. Rare earth permanent magnet, making method, and permanent magnet rotary machine
US7955443B2 (en) 2006-04-14 2011-06-07 Shin-Etsu Chemical Co., Ltd. Method for preparing rare earth permanent magnet material
JP4656323B2 (ja) 2006-04-14 2011-03-23 信越化学工業株式会社 希土類永久磁石材料の製造方法
JP4605396B2 (ja) 2006-04-14 2011-01-05 信越化学工業株式会社 希土類永久磁石材料の製造方法
JP4737431B2 (ja) 2006-08-30 2011-08-03 信越化学工業株式会社 永久磁石回転機
JP4840606B2 (ja) 2006-11-17 2011-12-21 信越化学工業株式会社 希土類永久磁石の製造方法
MY149353A (en) 2007-03-16 2013-08-30 Shinetsu Chemical Co Rare earth permanent magnet and its preparations

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KR101310401B1 (ko) 2013-09-17
WO2007119553A1 (ja) 2007-10-25
RU2007141923A (ru) 2009-05-20
JP4753030B2 (ja) 2011-08-17
BRPI0702846B1 (pt) 2016-11-16
TW200746185A (en) 2007-12-16
CN101316674A (zh) 2008-12-03
EP1900462B1 (en) 2015-07-29
JP2007284738A (ja) 2007-11-01
EP1900462A1 (en) 2008-03-19
EP1900462A4 (en) 2010-04-21
US8075707B2 (en) 2011-12-13
TWI421886B (zh) 2014-01-01
RU2417139C2 (ru) 2011-04-27
KR20080110449A (ko) 2008-12-18
US20090098006A1 (en) 2009-04-16
MY146583A (en) 2012-08-30
CN101316674B (zh) 2010-11-17

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