JP5146552B2 - R−Fe−B系希土類焼結磁石およびその製造方法 - Google Patents
R−Fe−B系希土類焼結磁石およびその製造方法 Download PDFInfo
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- JP5146552B2 JP5146552B2 JP2011009691A JP2011009691A JP5146552B2 JP 5146552 B2 JP5146552 B2 JP 5146552B2 JP 2011009691 A JP2011009691 A JP 2011009691A JP 2011009691 A JP2011009691 A JP 2011009691A JP 5146552 B2 JP5146552 B2 JP 5146552B2
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- rare earth
- sintered magnet
- earth element
- magnet body
- heavy rare
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- 229910052761 rare earth metal Inorganic materials 0.000 title claims description 198
- 150000002910 rare earth metals Chemical class 0.000 title claims description 57
- 238000004519 manufacturing process Methods 0.000 title description 11
- 239000011241 protective layer Substances 0.000 claims description 31
- 239000013078 crystal Substances 0.000 claims description 20
- 239000010410 layer Substances 0.000 claims description 15
- 229910052779 Neodymium Inorganic materials 0.000 claims description 13
- 150000001875 compounds Chemical class 0.000 claims description 13
- 229910052692 Dysprosium Inorganic materials 0.000 claims description 12
- 238000005324 grain boundary diffusion Methods 0.000 claims description 10
- 239000002344 surface layer Substances 0.000 claims description 10
- 229910052689 Holmium Inorganic materials 0.000 claims description 7
- 229910052771 Terbium Inorganic materials 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims description 6
- 229910052777 Praseodymium Inorganic materials 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 239000012071 phase Substances 0.000 description 66
- 238000009792 diffusion process Methods 0.000 description 47
- 229910045601 alloy Inorganic materials 0.000 description 33
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- 238000000034 method Methods 0.000 description 32
- 238000012545 processing Methods 0.000 description 30
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- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 15
- 239000001257 hydrogen Substances 0.000 description 14
- 229910052739 hydrogen Inorganic materials 0.000 description 14
- 239000000463 material Substances 0.000 description 13
- 238000005245 sintering Methods 0.000 description 13
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- 230000000052 comparative effect Effects 0.000 description 7
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- 238000009835 boiling Methods 0.000 description 6
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- 229910052718 tin Inorganic materials 0.000 description 4
- 229910052725 zinc Inorganic materials 0.000 description 4
- 239000011701 zinc Substances 0.000 description 4
- 238000002441 X-ray diffraction Methods 0.000 description 3
- 230000032683 aging Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
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- 229910052759 nickel Inorganic materials 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 229910017493 Nd 2 O 3 Inorganic materials 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000005347 demagnetization Effects 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 239000006247 magnetic powder Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
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- 230000001590 oxidative effect Effects 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000000859 sublimation Methods 0.000 description 2
- 230000008022 sublimation Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 229910052715 tantalum Inorganic materials 0.000 description 2
- 230000008685 targeting Effects 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 238000009834 vaporization Methods 0.000 description 2
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052684 Cerium Inorganic materials 0.000 description 1
- 229910052693 Europium Inorganic materials 0.000 description 1
- 229910052772 Samarium Inorganic materials 0.000 description 1
- 229910052769 Ytterbium Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000012300 argon atmosphere Substances 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 229910052735 hafnium Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000700 radioactive tracer Substances 0.000 description 1
- 229910001404 rare earth metal oxide Inorganic materials 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000003870 refractory metal Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000005211 surface analysis Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Images
Classifications
-
- 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
- H01F41/026—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 protecting methods against environmental influences, e.g. oxygen, by surface treatment
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Powder Metallurgy (AREA)
- Hard Magnetic Materials (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011009691A JP5146552B2 (ja) | 2011-01-20 | 2011-01-20 | R−Fe−B系希土類焼結磁石およびその製造方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011009691A JP5146552B2 (ja) | 2011-01-20 | 2011-01-20 | R−Fe−B系希土類焼結磁石およびその製造方法 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2006159960A Division JP4811143B2 (ja) | 2006-06-08 | 2006-06-08 | R−Fe−B系希土類焼結磁石およびその製造方法 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2011101043A JP2011101043A (ja) | 2011-05-19 |
| JP2011101043A5 JP2011101043A5 (enExample) | 2011-09-15 |
| JP5146552B2 true JP5146552B2 (ja) | 2013-02-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2011009691A Active JP5146552B2 (ja) | 2011-01-20 | 2011-01-20 | R−Fe−B系希土類焼結磁石およびその製造方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP5146552B2 (enExample) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104252938A (zh) * | 2014-09-12 | 2014-12-31 | 沈阳中北通磁科技股份有限公司 | 一种含Ho的多主相钕铁硼永磁铁及制造方法 |
| EP4239655A1 (en) * | 2022-03-02 | 2023-09-06 | Zhejiang University | Method for improving corrosion resistance of high abundance rare earth permanent magnet |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104240886B (zh) * | 2014-09-12 | 2017-01-11 | 沈阳中北通磁科技股份有限公司 | 一种含Tb的多主相钕铁硼永磁铁及制造方法 |
| DE102014219378A1 (de) * | 2014-09-25 | 2016-03-31 | Siemens Aktiengesellschaft | Verfahren zur Herstellung eines Permanentmagneten |
| KR101866023B1 (ko) * | 2016-05-23 | 2018-06-08 | 현대자동차주식회사 | 자기특성이 우수한 희토류 영구자석 제조방법 |
| CN110415960B (zh) * | 2019-07-19 | 2021-06-18 | 浙江东阳东磁稀土有限公司 | 一种提高烧结钕铁硼磁体磁性能的方法 |
| JP7452159B2 (ja) * | 2020-03-24 | 2024-03-19 | 株式会社プロテリアル | R-t-b系焼結磁石の製造方法 |
| CN114937538B (zh) * | 2022-06-15 | 2024-12-13 | 中国第一汽车股份有限公司 | 一种抗退磁的磁钢结构及电机 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0663086B2 (ja) * | 1985-09-27 | 1994-08-17 | 住友特殊金属株式会社 | 永久磁石材料及びその製造方法 |
| JPH0742553B2 (ja) * | 1986-02-18 | 1995-05-10 | 住友特殊金属株式会社 | 永久磁石材料及びその製造方法 |
| JP2844269B2 (ja) * | 1991-04-26 | 1999-01-06 | 住友特殊金属株式会社 | 耐食性永久磁石及びその製造方法 |
| JP3897724B2 (ja) * | 2003-03-31 | 2007-03-28 | 独立行政法人科学技術振興機構 | 超小型製品用の微小、高性能焼結希土類磁石の製造方法 |
| JP2005011973A (ja) * | 2003-06-18 | 2005-01-13 | Japan Science & Technology Agency | 希土類−鉄−ホウ素系磁石及びその製造方法 |
| JP3960966B2 (ja) * | 2003-12-10 | 2007-08-15 | 独立行政法人科学技術振興機構 | 耐熱性希土類磁石の製造方法 |
| EP1744331B1 (en) * | 2004-03-31 | 2016-06-29 | TDK Corporation | Rare earth magnet and method for manufacturing same |
| JP4788427B2 (ja) * | 2006-03-23 | 2011-10-05 | 日立金属株式会社 | R−Fe−B系希土類焼結磁石およびその製造方法 |
| JP4677942B2 (ja) * | 2006-03-31 | 2011-04-27 | 日立金属株式会社 | R−Fe−B系希土類焼結磁石の製造方法 |
-
2011
- 2011-01-20 JP JP2011009691A patent/JP5146552B2/ja active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104252938A (zh) * | 2014-09-12 | 2014-12-31 | 沈阳中北通磁科技股份有限公司 | 一种含Ho的多主相钕铁硼永磁铁及制造方法 |
| CN104252938B (zh) * | 2014-09-12 | 2016-10-05 | 沈阳中北通磁科技股份有限公司 | 一种含Ho的多主相钕铁硼永磁铁及制造方法 |
| EP4239655A1 (en) * | 2022-03-02 | 2023-09-06 | Zhejiang University | Method for improving corrosion resistance of high abundance rare earth permanent magnet |
| US12159748B2 (en) * | 2022-03-02 | 2024-12-03 | Zhejiang University | Method for improving corrosion resistance of high abundance rare earth permanent magnet |
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| Publication number | Publication date |
|---|---|
| JP2011101043A (ja) | 2011-05-19 |
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