FR3044161B1 - Aimant permanent fritte - Google Patents

Aimant permanent fritte Download PDF

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Publication number
FR3044161B1
FR3044161B1 FR1561376A FR1561376A FR3044161B1 FR 3044161 B1 FR3044161 B1 FR 3044161B1 FR 1561376 A FR1561376 A FR 1561376A FR 1561376 A FR1561376 A FR 1561376A FR 3044161 B1 FR3044161 B1 FR 3044161B1
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FR
France
Prior art keywords
additive
base
particles
magnet
mixtures
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.)
Active
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FR1561376A
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English (en)
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FR3044161A1 (fr
Inventor
Florence Servant
Cyril Rado
Olivier Tosoni
Fernand Vial
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.)
Vial Consulting
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Vial Consulting
Commissariat a lEnergie Atomique CEA
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
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Publication date
Application filed by Vial Consulting, Commissariat a lEnergie Atomique CEA, Commissariat a lEnergie Atomique et aux Energies Alternatives CEA filed Critical Vial Consulting
Priority to FR1561376A priority Critical patent/FR3044161B1/fr
Priority to PCT/EP2016/078719 priority patent/WO2017089488A1/fr
Publication of FR3044161A1 publication Critical patent/FR3044161A1/fr
Application granted granted Critical
Publication of FR3044161B1 publication Critical patent/FR3044161B1/fr
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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
    • H01F1/055—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
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C28/00—Alloys based on a metal not provided for in groups C22C5/00 - C22C27/00
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/04—Making ferrous alloys by melting
    • 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
    • C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
    • 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
    • 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)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Power Engineering (AREA)
  • Hard Magnetic Materials (AREA)
  • Powder Metallurgy (AREA)

Abstract

L'invention concerne un procédé de fabrication d'un aimant comportant les étapes suivantes : a) fabrication d'un alliage de base fondu comportant une phase magnétique T1 de type R2M14B et une phase riche en une terre rare R choisie dans le groupe constitué par Nd, Pr, Dy, Tb, Ho, Gd et leurs mélanges, M étant un élément métallique choisi dans le groupe constitué par Fe, Co, Ni et leurs mélanges, b) fabrication d'un alliage d'additif fondu comportant une phase additive choisie dans le groupe constitué par les phases R'-Co, R'-Co-M', R'-Co-M'-B et leurs mélanges, R' désignant une terre rare lourde, M' Cu et/ou Al et/ou Ga et/ou Ni et/ou Cr et/ou Fe, c) hydruration/déshydruration desdits alliages de base et d'additif fondus, d) broyage de manière à obtenir des particules de base (a) et d'additif (b), e) préparation d'un mélange particulaire (c) comportant des particules de base (a) et d'additif (b), l'ensemble des particules de base (a) et d'additif (b) du mélange particulaire présentant une taille médiane D50 comprise entre 1 µm et 4 µm, un rapport D90/D10 inférieur à 10, de préférence inférieur à 5, D10, D50 et D90 étant définis en volume, et une teneur massique en particules d'additif comprise entre 0,1% et 2%, f) mise en forme et orientation cristallographique, g) déshydruration totale et frittage à une température de frittage supérieure à la température de fusion de ladite phase riche en terre rare et à la température de fusion des particules d'additif (b), h) de préférence, recuisson de la pièce frittée ; i) aimantation de ladite pièce frittée de manière à obtenir un aimant.
FR1561376A 2015-11-25 2015-11-25 Aimant permanent fritte Active FR3044161B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR1561376A FR3044161B1 (fr) 2015-11-25 2015-11-25 Aimant permanent fritte
PCT/EP2016/078719 WO2017089488A1 (fr) 2015-11-25 2016-11-24 Aimant permanent fritte

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1561376A FR3044161B1 (fr) 2015-11-25 2015-11-25 Aimant permanent fritte
FR1561376 2015-11-25

Publications (2)

Publication Number Publication Date
FR3044161A1 FR3044161A1 (fr) 2017-05-26
FR3044161B1 true FR3044161B1 (fr) 2019-05-03

Family

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Family Applications (1)

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FR1561376A Active FR3044161B1 (fr) 2015-11-25 2015-11-25 Aimant permanent fritte

Country Status (2)

Country Link
FR (1) FR3044161B1 (fr)
WO (1) WO2017089488A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7196708B2 (ja) * 2019-03-18 2022-12-27 Tdk株式会社 Ｒ‐ｔ‐ｂ系永久磁石
CN111863369B (zh) * 2019-04-29 2023-04-25 广东省稀有金属研究所 一种磁性粘结剂及其制备方法、复合永磁材料的制备方法
CN110444386B (zh) * 2019-08-16 2021-09-03 包头天和磁材科技股份有限公司 烧结体、烧结永磁体及其制备方法
CN112358311B (zh) * 2020-11-27 2022-04-01 滁州恒通磁电科技有限公司 一种高磁性防开裂磁性材料的制备方法
CN113373388B (zh) * 2021-04-29 2022-08-05 宝鸡文理学院 一种利用双组织结构提升含硼共晶合金塑韧性的方法
CN114373618B (zh) * 2021-12-21 2023-10-27 包头韵升强磁材料有限公司 一种减小烧结钕铁硼磁体双面表磁差异的方法
FR3133700A1 (fr) * 2022-03-16 2023-09-22 Commissariat à l'Energie Atomique et aux Energies Alternatives Procédé de fabrication d’un aimant à partir d’aimants recyclés
CN117831878A (zh) * 2022-09-28 2024-04-05 福建省金龙稀土股份有限公司 一种钕铁硼稀土永磁体及其制备方法和应用

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2566758B1 (fr) 1984-06-29 1990-01-12 Centre Nat Rech Scient Nouveaux hydrures de terre rare/fer/bore et terre rare/cobalt/bore magnetiques, leur procede de fabrication et de fabrication des produits deshydrures pulverulents correspondants, leurs applications
JPH07105289B2 (ja) 1986-03-06 1995-11-13 信越化学工業株式会社 希土類永久磁石の製造方法
FR2664086A1 (fr) 1990-07-02 1992-01-03 Centre Nat Rech Scient Procede perfectionne pour l'optimisation des proprietes magnetiques de materiaux magnetiques pulverulents et produits ainsi obtenus.
JP3231034B1 (ja) 2000-05-09 2001-11-19 住友特殊金属株式会社 希土類磁石およびその製造方法
CN1182548C (zh) 2000-07-10 2004-12-29 株式会社新王磁材 稀土磁铁及其制造方法
JP3452254B2 (ja) * 2000-09-20 2003-09-29 愛知製鋼株式会社 異方性磁石粉末の製造方法、異方性磁石粉末の原料粉末およびボンド磁石
BRPI0506147B1 (pt) 2004-10-19 2020-10-13 Shin-Etsu Chemical Co., Ltd método para preparar um material de ímã permanente de terra rara
JP5303738B2 (ja) * 2010-07-27 2013-10-02 Ｔｄｋ株式会社 希土類焼結磁石
CN103219117B (zh) * 2013-05-05 2016-04-06 沈阳中北真空磁电科技有限公司 一种双合金钕铁硼稀土永磁材料及制造方法

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Publication number Publication date
FR3044161A1 (fr) 2017-05-26
WO2017089488A1 (fr) 2017-06-01

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