JP5277179B2 - 永久磁石の製造方法及び永久磁石 - Google Patents
永久磁石の製造方法及び永久磁石 Download PDFInfo
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- JP5277179B2 JP5277179B2 JP2009554345A JP2009554345A JP5277179B2 JP 5277179 B2 JP5277179 B2 JP 5277179B2 JP 2009554345 A JP2009554345 A JP 2009554345A JP 2009554345 A JP2009554345 A JP 2009554345A JP 5277179 B2 JP5277179 B2 JP 5277179B2
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- 239000011261 inert gas Substances 0.000 claims description 42
- 238000001883 metal evaporation Methods 0.000 claims description 39
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- 239000013078 crystal Substances 0.000 claims description 33
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- 238000001704 evaporation Methods 0.000 claims description 29
- 229910052771 Terbium Inorganic materials 0.000 claims description 28
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- 238000009792 diffusion process Methods 0.000 claims description 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 8
- 239000001301 oxygen Substances 0.000 claims description 8
- 229910052760 oxygen Inorganic materials 0.000 claims description 8
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical compound [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 claims description 6
- XYFCBTPGUUZFHI-UHFFFAOYSA-N Phosphine Chemical compound P XYFCBTPGUUZFHI-UHFFFAOYSA-N 0.000 claims description 6
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 claims description 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 3
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 claims description 3
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- 239000000112 cooling gas Substances 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 3
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 claims description 3
- 239000001272 nitrous oxide Substances 0.000 claims description 3
- 229910000073 phosphorus hydride Inorganic materials 0.000 claims description 3
- 239000001294 propane Substances 0.000 claims description 3
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- 239000012071 phase Substances 0.000 description 36
- 125000006850 spacer group Chemical group 0.000 description 20
- 230000007797 corrosion Effects 0.000 description 19
- 238000005260 corrosion Methods 0.000 description 19
- 238000001816 cooling Methods 0.000 description 15
- 239000000047 product Substances 0.000 description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 11
- 229910045601 alloy Inorganic materials 0.000 description 10
- 239000000956 alloy Substances 0.000 description 10
- 238000007747 plating Methods 0.000 description 8
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- 230000001681 protective effect Effects 0.000 description 7
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 6
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 238000005245 sintering Methods 0.000 description 6
- 229910052779 Neodymium Inorganic materials 0.000 description 5
- 229910052786 argon Inorganic materials 0.000 description 5
- 230000004907 flux Effects 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 5
- 229910001172 neodymium magnet Inorganic materials 0.000 description 5
- 238000010298 pulverizing process Methods 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 230000005347 demagnetization Effects 0.000 description 4
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 3
- 229910052796 boron Inorganic materials 0.000 description 3
- 229910001873 dinitrogen Inorganic materials 0.000 description 3
- 230000001771 impaired effect Effects 0.000 description 3
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 229910001182 Mo alloy Inorganic materials 0.000 description 2
- 241000221535 Pucciniales Species 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000000748 compression moulding Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
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- 229910001882 dioxygen Inorganic materials 0.000 description 2
- 229910052733 gallium Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
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- 229910052758 niobium Inorganic materials 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000000700 radioactive tracer Substances 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052774 Proactinium Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- JZQOJFLIJNRDHK-CMDGGOBGSA-N alpha-irone Chemical compound CC1CC=C(C)C(\C=C\C(C)=O)C1(C)C JZQOJFLIJNRDHK-CMDGGOBGSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000009750 centrifugal casting Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
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- 238000006731 degradation reaction Methods 0.000 description 1
- KBQHZAAAGSGFKK-UHFFFAOYSA-N dysprosium atom Chemical compound [Dy] KBQHZAAAGSGFKK-UHFFFAOYSA-N 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
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- 150000002739 metals Chemical class 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
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- 150000002910 rare earth metals Chemical class 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Classifications
-
- 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
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
- Hard Magnetic Materials (AREA)
- Powder Metallurgy (AREA)
Description
2 真空排気手段
3 真空チャンバ
4 加熱手段
7 処理箱
71 箱部
72 蓋部
8 スペーサー
81 線材
9 ガス導入管(ガス導入手段)
S 焼結磁石
M 永久磁石
v 金属蒸発材料
Claims (5)
- 処理室内に鉄−ホウ素−希土類系の焼結磁石を配置して加熱すると共に、同一または他の処理室内に配置したDy、Tbの少なくとも一方を含む金属蒸発材料を蒸発させ、前記金属蒸発材料が蒸発している間で前記焼結磁石が配置された処理室内に不活性ガスを導入し、前記不活性ガスの分圧を制御して蒸発した金属原子の焼結磁石表面への供給量を調節して金属原子を付着させ、前記付着した金属原子からなる薄膜が形成される前に前記金属原子を焼結磁石の結晶粒界及び/または結晶粒界相に拡散させる第1工程と、
前記焼結磁石が配置されている処理室内に冷却ガスを導入して前記処理室を冷却する間で前記処理室に反応ガスを導入し、焼結磁石を冷却しながら当該焼結磁石表面を反応膜で覆って不動態化する第2工程とを含み、
前記第2工程を、処理室内で不活性ガスと反応ガスとを循環させながら行うことを特徴とする永久磁石の製造方法。 - 前記反応ガスとして、亜硫酸ガス、亜酸化窒素ガス、アンモニアガス、アセチレンガス、プロパンガス、ブダンガス及びホスフィンガスの中から選択されたものを用いることを特徴とする請求項1記載の永久磁石の製造方法。
- 前記第1工程と第2工程との間で、前記第1工程での加熱温度より低い温度で前記焼結磁石に対し熱処理を施す熱処理工程を含むことを特徴とする請求項1または請求項2記載の永久磁石の製造方法。
- 前記焼結磁石と金属蒸発材料とを同一の処理室内に配置する場合、焼結磁石及び金属蒸発材料を相互に接触しないように配置することを特徴とする請求項1〜請求項3のいずれか1項に記載の永久磁石の製造方法。
- 請求項1〜請求項4のいずれか1項に記載の永久磁石の製造方法を用いて作製された永久磁石であって、前記金属原子が焼結磁石の結晶粒界及び/または結晶粒界相に磁石表面からその中心に向かって含有濃度が薄くなる分布を持って拡散していると共に、その表面にDy及びTbの少なくとも一方の金属原子が均一に存在し、かつ、酸素濃度が均一であり、前記焼結磁石表面の全体が反応膜で覆われていることを特徴とする永久磁石。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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JP2009554345A JP5277179B2 (ja) | 2008-02-20 | 2009-02-18 | 永久磁石の製造方法及び永久磁石 |
Applications Claiming Priority (6)
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JP2008039300 | 2008-02-20 | ||
JP2008039300 | 2008-02-20 | ||
JP2008039297 | 2008-02-20 | ||
JP2008039297 | 2008-02-20 | ||
PCT/JP2009/052789 WO2009104640A1 (ja) | 2008-02-20 | 2009-02-18 | 永久磁石の製造方法及び永久磁石 |
JP2009554345A JP5277179B2 (ja) | 2008-02-20 | 2009-02-18 | 永久磁石の製造方法及び永久磁石 |
Publications (2)
Publication Number | Publication Date |
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JPWO2009104640A1 JPWO2009104640A1 (ja) | 2011-06-23 |
JP5277179B2 true JP5277179B2 (ja) | 2013-08-28 |
Family
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JP2009554345A Expired - Fee Related JP5277179B2 (ja) | 2008-02-20 | 2009-02-18 | 永久磁石の製造方法及び永久磁石 |
Country Status (5)
Country | Link |
---|---|
JP (1) | JP5277179B2 (ja) |
KR (1) | KR101242466B1 (ja) |
CN (1) | CN101952914B (ja) |
TW (1) | TWI396212B (ja) |
WO (1) | WO2009104640A1 (ja) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5445125B2 (ja) * | 2009-12-28 | 2014-03-19 | 日立金属株式会社 | 表面改質されたR−Fe−B系焼結磁石の製造方法 |
JP5088596B2 (ja) * | 2010-09-30 | 2012-12-05 | 日立金属株式会社 | R−t−b系焼結磁石の製造方法 |
CN102682987B (zh) * | 2011-03-15 | 2016-12-07 | 北京中科三环高技术股份有限公司 | 稀土永磁体的制备方法、制备装置及其制备的稀土永磁体 |
CN102969110B (zh) * | 2012-11-21 | 2016-07-06 | 烟台正海磁性材料股份有限公司 | 一种提高钕铁硼磁力矫顽力的装置及方法 |
CN103351832B (zh) * | 2013-07-18 | 2015-09-09 | 东莞市芙蓉化工有限公司 | 一种不含硫元素的聚丙烯酸酯乳液压敏胶及其制备方法 |
CN103646772B (zh) * | 2013-11-21 | 2017-01-04 | 烟台正海磁性材料股份有限公司 | 一种R-Fe-B系烧结磁体的制备方法 |
JP2018056188A (ja) * | 2016-09-26 | 2018-04-05 | 信越化学工業株式会社 | R−Fe−B系焼結磁石 |
CN110106334B (zh) * | 2018-02-01 | 2021-06-22 | 福建省长汀金龙稀土有限公司 | 一种连续进行晶界扩散和热处理的装置以及方法 |
CN109459534A (zh) * | 2018-11-30 | 2019-03-12 | 华东交通大学 | 一种医用氧气浓度监测与提醒装置 |
JP7364405B2 (ja) * | 2019-09-20 | 2023-10-18 | 信越化学工業株式会社 | 希土類磁石の製造方法 |
CN113299476B (zh) * | 2021-06-24 | 2023-02-17 | 安徽大地熊新材料股份有限公司 | 一种大尺寸钕铁硼扩散磁体及其制备方法 |
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JP2005310975A (ja) * | 2004-04-20 | 2005-11-04 | Toyota Motor Corp | 焼結ネオジム磁石および製造方法、回転電機 |
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JP2007329330A (ja) * | 2006-06-08 | 2007-12-20 | Toyota Motor Corp | 半導体装置 |
JP4241900B2 (ja) * | 2006-03-03 | 2009-03-18 | 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 |
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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 |
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2009
- 2009-02-18 WO PCT/JP2009/052789 patent/WO2009104640A1/ja active Application Filing
- 2009-02-18 CN CN200980105663.7A patent/CN101952914B/zh not_active Expired - Fee Related
- 2009-02-18 KR KR1020107020327A patent/KR101242466B1/ko active IP Right Grant
- 2009-02-18 JP JP2009554345A patent/JP5277179B2/ja not_active Expired - Fee Related
- 2009-02-20 TW TW98105458A patent/TWI396212B/zh not_active IP Right Cessation
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JPH0319201A (ja) * | 1989-05-12 | 1991-01-28 | Krupp Widia Gmbh | NdFeBを基礎とする永久磁石及びこの表面の不動態化法 |
JP2005310975A (ja) * | 2004-04-20 | 2005-11-04 | Toyota Motor Corp | 焼結ネオジム磁石および製造方法、回転電機 |
WO2006100968A1 (ja) * | 2005-03-18 | 2006-09-28 | Ulvac, Inc. | 成膜方法及び成膜装置並びに永久磁石及び永久磁石の製造方法 |
JP4241900B2 (ja) * | 2006-03-03 | 2009-03-18 | 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 |
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JP2007329330A (ja) * | 2006-06-08 | 2007-12-20 | Toyota Motor Corp | 半導体装置 |
Also Published As
Publication number | Publication date |
---|---|
KR101242466B1 (ko) | 2013-03-12 |
KR20100119885A (ko) | 2010-11-11 |
WO2009104640A1 (ja) | 2009-08-27 |
TW200943335A (en) | 2009-10-16 |
JPWO2009104640A1 (ja) | 2011-06-23 |
CN101952914A (zh) | 2011-01-19 |
CN101952914B (zh) | 2013-03-06 |
TWI396212B (zh) | 2013-05-11 |
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