FR3044161B1 - Aimant permanent fritte - Google Patents
Aimant permanent fritte Download PDFInfo
- 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
- Authority
- 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.)
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Links
- 239000000654 additive Substances 0.000 abstract 8
- 230000000996 additive effect Effects 0.000 abstract 8
- 239000000203 mixture Substances 0.000 abstract 5
- 239000002245 particle Substances 0.000 abstract 4
- 239000000956 alloy Substances 0.000 abstract 3
- 229910045601 alloy Inorganic materials 0.000 abstract 3
- 238000004519 manufacturing process Methods 0.000 abstract 3
- 229910052761 rare earth metal Inorganic materials 0.000 abstract 3
- 150000002910 rare earth metals Chemical class 0.000 abstract 3
- 229910052742 iron Inorganic materials 0.000 abstract 2
- 238000002844 melting Methods 0.000 abstract 2
- 230000008018 melting Effects 0.000 abstract 2
- 238000005245 sintering Methods 0.000 abstract 2
- 229910052692 Dysprosium Inorganic materials 0.000 abstract 1
- 229910052779 Neodymium Inorganic materials 0.000 abstract 1
- 229910052777 Praseodymium Inorganic materials 0.000 abstract 1
- 229910052771 Terbium Inorganic materials 0.000 abstract 1
- 238000000137 annealing Methods 0.000 abstract 1
- 238000000227 grinding Methods 0.000 abstract 1
- 238000004845 hydriding Methods 0.000 abstract 1
- 230000005415 magnetization Effects 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 229910052759 nickel Inorganic materials 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 abstract 1
- 238000007493 shaping process Methods 0.000 abstract 1
Classifications
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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
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- 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
Landscapes
- 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.
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
ID=56068954
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
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)
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)
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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2015
- 2015-11-25 FR FR1561376A patent/FR3044161B1/fr active Active
-
2016
- 2016-11-24 WO PCT/EP2016/078719 patent/WO2017089488A1/fr active Application Filing
Also Published As
Publication number | Publication date |
---|---|
FR3044161A1 (fr) | 2017-05-26 |
WO2017089488A1 (fr) | 2017-06-01 |
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