CN1460270A - 稀土类磁体及其制造方法 - Google Patents
稀土类磁体及其制造方法 Download PDFInfo
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- CN1460270A CN1460270A CN02801076.0A CN02801076A CN1460270A CN 1460270 A CN1460270 A CN 1460270A CN 02801076 A CN02801076 A CN 02801076A CN 1460270 A CN1460270 A CN 1460270A
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- rare earth
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- 229910052761 rare earth metal Inorganic materials 0.000 title claims abstract description 110
- 150000002910 rare earth metals Chemical class 0.000 title claims abstract description 63
- 238000004519 manufacturing process Methods 0.000 title claims description 29
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 137
- 239000000956 alloy Substances 0.000 claims abstract description 137
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 15
- 229910052723 transition metal Inorganic materials 0.000 claims abstract description 15
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 12
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 12
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 11
- 239000013078 crystal Substances 0.000 claims description 51
- 238000000034 method Methods 0.000 claims description 49
- 239000000843 powder Substances 0.000 claims description 40
- 239000002994 raw material Substances 0.000 claims description 31
- 238000001816 cooling Methods 0.000 claims description 26
- 238000010438 heat treatment Methods 0.000 claims description 24
- 239000003595 mist Substances 0.000 claims description 22
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 21
- 238000005266 casting Methods 0.000 claims description 21
- 229910052739 hydrogen Inorganic materials 0.000 claims description 21
- 239000001301 oxygen Substances 0.000 claims description 21
- 229910052760 oxygen Inorganic materials 0.000 claims description 21
- 238000010791 quenching Methods 0.000 claims description 21
- 239000001257 hydrogen Substances 0.000 claims description 18
- 238000010298 pulverizing process Methods 0.000 claims description 18
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 17
- 238000005245 sintering Methods 0.000 claims description 16
- 238000007711 solidification Methods 0.000 claims description 15
- 230000008023 solidification Effects 0.000 claims description 15
- 150000003624 transition metals Chemical class 0.000 claims description 14
- 229910052692 Dysprosium Inorganic materials 0.000 claims description 12
- 229910052771 Terbium Inorganic materials 0.000 claims description 12
- 239000011261 inert gas Substances 0.000 claims description 9
- 229910052804 chromium Inorganic materials 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 229910052733 gallium Inorganic materials 0.000 claims description 4
- 229910052738 indium Inorganic materials 0.000 claims description 4
- 229910052759 nickel Inorganic materials 0.000 claims description 4
- 229910052758 niobium Inorganic materials 0.000 claims description 4
- 229910052718 tin Inorganic materials 0.000 claims description 4
- 229910052735 hafnium Inorganic materials 0.000 claims description 3
- 229910052748 manganese Inorganic materials 0.000 claims description 3
- 229910052750 molybdenum Inorganic materials 0.000 claims description 3
- 229910052715 tantalum Inorganic materials 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- 229910052721 tungsten Inorganic materials 0.000 claims description 3
- 229910052720 vanadium Inorganic materials 0.000 claims description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 3
- 229910052726 zirconium Inorganic materials 0.000 claims description 3
- 230000008676 import Effects 0.000 claims description 2
- 238000009413 insulation Methods 0.000 claims description 2
- 229910052796 boron Inorganic materials 0.000 abstract description 4
- 229910052689 Holmium Inorganic materials 0.000 abstract description 3
- 238000007669 thermal treatment Methods 0.000 abstract 2
- 229910052779 Neodymium Inorganic materials 0.000 abstract 1
- 229910052777 Praseodymium Inorganic materials 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000002699 waste material Substances 0.000 abstract 1
- 125000004429 atom Chemical group 0.000 description 28
- 238000005516 engineering process Methods 0.000 description 12
- 239000002245 particle Substances 0.000 description 10
- 230000007246 mechanism Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 238000007254 oxidation reaction Methods 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 7
- 239000012141 concentrate Substances 0.000 description 7
- 230000003647 oxidation Effects 0.000 description 7
- 230000004523 agglutinating effect Effects 0.000 description 4
- 239000000470 constituent Substances 0.000 description 4
- 229910001172 neodymium magnet Inorganic materials 0.000 description 4
- 230000033228 biological regulation Effects 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- 230000005415 magnetization Effects 0.000 description 3
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical group [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 2
- 229910000846 In alloy Inorganic materials 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 235000013339 cereals Nutrition 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000008520 organization Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000010583 slow cooling Methods 0.000 description 2
- 229910000601 superalloy Inorganic materials 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- 229910000714 At alloy Inorganic materials 0.000 description 1
- 229910052772 Samarium Inorganic materials 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001868 cobalt Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000004320 controlled atmosphere Methods 0.000 description 1
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 235000012054 meals Nutrition 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 229910001404 rare earth metal oxide Inorganic materials 0.000 description 1
- KZUNJOHGWZRPMI-UHFFFAOYSA-N samarium atom Chemical compound [Sm] KZUNJOHGWZRPMI-UHFFFAOYSA-N 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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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
- 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
- C22C45/00—Amorphous alloys
- C22C45/02—Amorphous alloys with iron as the major constituent
-
- 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
-
- 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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- 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
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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
- H01F1/058—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IVa elements, e.g. Gd2Fe14C
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- 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
- H01F1/059—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and Va elements, e.g. Sm2Fe17N2
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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
Description
Nd | Pr | Dy | Fe | Co | Cu | Al | B | O | |
原料 | 17.5 | 5.04 | 9.82 | 64.3 | 0.91 | 0.05 | 0.25 | 1.01 | 0.03 |
微粉碎后 | 17.1 | 4.90 | 9.90 | 64.8 | 0.90 | 0.05 | 0.25 | 1.00 | 0.26 |
烧结体 | 17.0 | 4.90 | 9.90 | 64.9 | 0.91 | 0.05 | 0.25 | 1.00 | 0.28 |
Br(T) | HCB(kA/m) | HC(kA/m) | (BH)max(kJ/m3) |
1.118 | 879.1 | 2347 | 245.3 |
Nd | Pr | Dy | |
主相 | 53.15 | 13.31 | 33.53 |
整体 | 55.18 | 16.28 | 28.52 |
Nd | Pr | Dy | Fe | Co | Cu | Al | B | O | |
原料 | 17.5 | 5.04 | 9.82 | 64.3 | 0.91 | 0.05 | 0.25 | 1.01 | 0.03 |
微粉碎后 | 17.1 | 4.94 | 9.81 | 64.9 | 0.91 | 0.05 | 0.24 | 1.00 | 0.24 |
烧结体 | 17.1 | 4.93 | 9.82 | 64.9 | 0.90 | 0.05 | 0.24 | 1.00 | 0.27 |
Br(T) | HCB(kA/m) | HCJ(kA/m) | (BH)max(kJ/m3) |
1.106 | 876.7 | 2220 | 240.5 |
Nd | Pr | Dy | |
主相 | 54.09 | 15.02 | 30.89 |
整体 | 55.40 | 16.35 | 28.24 |
Nd | Pr | Dy | Fe | Co | Cu | Al | B | O | |
微粉 | 16.9 | 4.87 | 9.98 | 64.6 | 0.89 | 0.04 | 0.24 | 0.99 | 0.54 |
烧结体 | 16.9 | 4.89 | 9.90 | 64.6 | 0.90 | 0.04 | 0.25 | 1.00 | 0.53 |
Br(T) | HCB(kA/m) | HCJ(kA/m) | (BH)max(kJ/m3) |
1.101 | 864.2 | 2109 | 237.8 |
Nd | Pr | Dy | |
主相 | 54.80 | 16.05 | 29.15 |
整体 | 55.06 | 16.31 | 28.63 |
Claims (15)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001189673 | 2001-06-22 | ||
JP189673/01 | 2001-06-22 | ||
JP189673/2001 | 2001-06-22 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1460270A true CN1460270A (zh) | 2003-12-03 |
CN100414650C CN100414650C (zh) | 2008-08-27 |
Family
ID=19028563
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB028010760A Expired - Lifetime CN100414650C (zh) | 2001-06-22 | 2002-06-19 | 稀土类磁体及其制造方法 |
Country Status (5)
Country | Link |
---|---|
US (2) | US7258751B2 (zh) |
JP (1) | JP3909707B2 (zh) |
CN (1) | CN100414650C (zh) |
DE (1) | DE10296960T5 (zh) |
WO (1) | WO2003001541A1 (zh) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1716465B (zh) * | 2004-06-29 | 2010-05-05 | 日立金属株式会社 | 铁基稀土类系各向同性纳米复合磁铁的制造方法 |
CN101770843A (zh) * | 2009-01-07 | 2010-07-07 | 大同特殊钢株式会社 | 磁各向异性磁体原材料及其制造方法 |
CN102618776A (zh) * | 2011-01-26 | 2012-08-01 | 宁波科宁达工业有限公司 | 一种钕铁硼烧结过程的保护烧结炉加热室的烧结方法 |
CN103079724A (zh) * | 2010-07-02 | 2013-05-01 | 株式会社三德 | 稀土烧结磁体用合金铸片的制造方法 |
CN103377789A (zh) * | 2012-05-17 | 2013-10-30 | 北京京磁强磁材料有限公司 | 稀土类永磁体及其制造方法 |
CN103489556A (zh) * | 2013-09-16 | 2014-01-01 | 南通保来利轴承有限公司 | 极异方环状烧结铁氧体转子磁石及其制备方法 |
CN103871704A (zh) * | 2014-03-04 | 2014-06-18 | 南京信息工程大学 | 一种钕铁氮磷永磁材料及制备方法 |
CN103871701A (zh) * | 2014-03-04 | 2014-06-18 | 南京信息工程大学 | 一种高剩磁镨铁磷永磁材料及制备方法 |
CN103890880A (zh) * | 2011-10-27 | 2014-06-25 | 因太金属株式会社 | NdFeB 系烧结磁体的制造方法 |
CN105658835A (zh) * | 2013-11-27 | 2016-06-08 | 厦门钨业股份有限公司 | 一种低b的稀土磁铁 |
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US7018487B2 (en) * | 2001-11-22 | 2006-03-28 | Nissan Motor Co., Ltd. | Magnet containing low rare earth element and method for manufacturing the same |
JP4389427B2 (ja) * | 2002-02-05 | 2009-12-24 | 日立金属株式会社 | 希土類−鉄−硼素系磁石用合金粉末を用いた焼結磁石 |
WO2004077457A1 (ja) | 2003-02-27 | 2004-09-10 | Neomax Co., Ltd. | 粒子線加速器用永久磁石および磁界発生装置 |
WO2005105343A1 (ja) * | 2004-04-30 | 2005-11-10 | Neomax Co., Ltd. | 希土類磁石用原料合金および粉末ならびに焼結磁石の製造方法 |
US20060165550A1 (en) * | 2005-01-25 | 2006-07-27 | Tdk Corporation | Raw material alloy for R-T-B system sintered magnet, R-T-B system sintered magnet and production method thereof |
CN101370606B (zh) * | 2005-12-02 | 2013-12-25 | 日立金属株式会社 | 稀土类烧结磁体及其制造方法 |
US20070137733A1 (en) * | 2005-12-21 | 2007-06-21 | Shengzhi Dong | Mixed rare-earth based high-coercivity permanent magnet |
WO2008096621A1 (ja) * | 2007-02-05 | 2008-08-14 | Showa Denko K.K. | R-t-b系合金とその製造方法、r-t-b系希土類永久磁石用微粉、r-t-b系希土類永久磁石 |
EP2043111A1 (en) * | 2007-09-10 | 2009-04-01 | Nissan Motor Co., Ltd. | Rare earth permanent magnetic alloy and producing method thereof |
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- 2002-06-19 JP JP2003507836A patent/JP3909707B2/ja not_active Expired - Lifetime
- 2002-06-19 US US10/480,309 patent/US7258751B2/en not_active Expired - Lifetime
- 2002-06-19 DE DE10296960T patent/DE10296960T5/de not_active Withdrawn
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Also Published As
Publication number | Publication date |
---|---|
DE10296960T5 (de) | 2004-04-22 |
CN100414650C (zh) | 2008-08-27 |
JP3909707B2 (ja) | 2007-04-25 |
JPWO2003001541A1 (ja) | 2004-10-14 |
US7258751B2 (en) | 2007-08-21 |
US7867343B2 (en) | 2011-01-11 |
WO2003001541A1 (fr) | 2003-01-03 |
US20070261766A1 (en) | 2007-11-15 |
US20040163737A1 (en) | 2004-08-26 |
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