BR112016013421B8 - Ímã sinterizado de r-fe-b-cu contendo w e sua liga de têmpera - Google Patents

Ímã sinterizado de r-fe-b-cu contendo w e sua liga de têmpera

Info

Publication number
BR112016013421B8
BR112016013421B8 BR112016013421A BR112016013421A BR112016013421B8 BR 112016013421 B8 BR112016013421 B8 BR 112016013421B8 BR 112016013421 A BR112016013421 A BR 112016013421A BR 112016013421 A BR112016013421 A BR 112016013421A BR 112016013421 B8 BR112016013421 B8 BR 112016013421B8
Authority
BR
Brazil
Prior art keywords
sintered
magnet
rich area
volume
crystal
Prior art date
Application number
BR112016013421A
Other languages
English (en)
Other versions
BR112016013421B1 (pt
BR112016013421A2 (pt
Inventor
Nagata Hiroshi
Yu Rong
Lan Qin
Original Assignee
Fujian Changting Golden Dragon Rare Earth Co Ltd
Xiamen Tungsten Co Ltd
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 Fujian Changting Golden Dragon Rare Earth Co Ltd, Xiamen Tungsten Co Ltd filed Critical Fujian Changting Golden Dragon Rare Earth Co Ltd
Publication of BR112016013421A2 publication Critical patent/BR112016013421A2/pt
Publication of BR112016013421B1 publication Critical patent/BR112016013421B1/pt
Publication of BR112016013421B8 publication Critical patent/BR112016013421B8/pt

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    • 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
    • H01F1/0536—Alloys characterised by their composition containing rare earth metals sintered
    • 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
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • 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
    • 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
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • 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
    • C22C38/10—Ferrous alloys, e.g. steel alloys containing cobalt
    • 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
    • C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
    • 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
    • C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
    • 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
    • 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
    • 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

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Power Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Hard Magnetic Materials (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Powder Metallurgy (AREA)

Abstract

ÍMA SINTERIZADO DE R-FE-B-CU CONTENDO W E SUA LIGA DE TÊMPERA. A presente invenção descreve um ímã sinterizado de Fe-R-B-Cu contendo W e sua liga de têmpera. O ímã sinterizado contém uma fase principal do tipo R2Fe14B, com R sendo pelo menos um elemento de terras raras compreendendo Nd ou Pr; a borda do grão de cristal do ímã de terras raras contém uma área rica em W acima de 0,004 %at e inferior a 0,26 %at, onde a área rica compreende 5,0% em volume ~ 11,0% em volume do ímã sinterizado. O ímã sinterizado utiliza uma quantidade menor de cristal de fixação de W para segregar a migração da borda do grão fixado nas bordas dos grãos de cristal, para impedir eficazmente o crescimento anormal dos grãos e obter uma melhoria significativa. A borda do grão de cristal da liga de têmpera contém uma área rica em W acima de 0,004 %at e inferior a 0,26 %at, e a área rica em W compreende pelo menos 50% em volume das bordas dos grãos de cristal.
BR112016013421A 2014-03-31 2015-03-31 Ímã sinterizado de r-fe-b-cu contendo w e sua liga de têmpera BR112016013421B8 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN201410126926.5A CN104952574A (zh) 2014-03-31 2014-03-31 一种含W的Nd-Fe-B-Cu系烧结磁铁
CN201410126926.5 2014-03-31
PCT/CN2015/075512 WO2015149685A1 (zh) 2014-03-31 2015-03-31 一种含W的R‐Fe‐B‐Cu系烧结磁铁及急冷合金

Publications (3)

Publication Number Publication Date
BR112016013421A2 BR112016013421A2 (pt) 2020-06-16
BR112016013421B1 BR112016013421B1 (pt) 2022-03-29
BR112016013421B8 true BR112016013421B8 (pt) 2023-03-07

Family

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Family Applications (1)

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BR112016013421A BR112016013421B8 (pt) 2014-03-31 2015-03-31 Ímã sinterizado de r-fe-b-cu contendo w e sua liga de têmpera

Country Status (8)

Country Link
US (1) US10381139B2 (pt)
EP (1) EP3128521B8 (pt)
JP (1) JP6528046B2 (pt)
CN (2) CN104952574A (pt)
BR (1) BR112016013421B8 (pt)
DK (1) DK3128521T3 (pt)
ES (1) ES2742188T3 (pt)
WO (1) WO2015149685A1 (pt)

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Also Published As

Publication number Publication date
JP6528046B2 (ja) 2019-06-12
DK3128521T3 (da) 2019-09-09
JP2017517140A (ja) 2017-06-22
US10381139B2 (en) 2019-08-13
WO2015149685A1 (zh) 2015-10-08
EP3128521B1 (en) 2019-06-05
BR112016013421B1 (pt) 2022-03-29
EP3128521A1 (en) 2017-02-08
CN105659336A (zh) 2016-06-08
CN105659336B (zh) 2018-01-23
BR112016013421A2 (pt) 2020-06-16
EP3128521A4 (en) 2017-12-27
CN104952574A (zh) 2015-09-30
EP3128521B8 (en) 2019-09-18
US20160300648A1 (en) 2016-10-13
ES2742188T3 (es) 2020-02-13

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