JP2016033990A - 永久磁石の製造方法 - Google Patents
永久磁石の製造方法 Download PDFInfo
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- JP2016033990A JP2016033990A JP2014156932A JP2014156932A JP2016033990A JP 2016033990 A JP2016033990 A JP 2016033990A JP 2014156932 A JP2014156932 A JP 2014156932A JP 2014156932 A JP2014156932 A JP 2014156932A JP 2016033990 A JP2016033990 A JP 2016033990A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 238000001704 evaporation Methods 0.000 claims abstract description 64
- 239000000463 material Substances 0.000 claims abstract description 58
- 230000008020 evaporation Effects 0.000 claims abstract description 52
- 229910052771 Terbium Inorganic materials 0.000 claims abstract description 20
- 229910052692 Dysprosium Inorganic materials 0.000 claims abstract description 18
- 229910052689 Holmium Inorganic materials 0.000 claims abstract description 15
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims description 39
- 238000000034 method Methods 0.000 claims description 21
- 239000002994 raw material Substances 0.000 description 34
- 238000011282 treatment Methods 0.000 description 30
- 239000013078 crystal Substances 0.000 description 24
- 239000011261 inert gas Substances 0.000 description 23
- 239000012071 phase Substances 0.000 description 17
- 230000008569 process Effects 0.000 description 13
- 238000002474 experimental method Methods 0.000 description 10
- 229910045601 alloy Inorganic materials 0.000 description 9
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- 229910052751 metal Inorganic materials 0.000 description 9
- 239000002184 metal Substances 0.000 description 9
- 238000009792 diffusion process Methods 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 230000001771 impaired effect Effects 0.000 description 7
- 239000000203 mixture Substances 0.000 description 7
- 230000004907 flux Effects 0.000 description 6
- 230000004927 fusion Effects 0.000 description 6
- 239000011810 insulating material Substances 0.000 description 6
- 230000005415 magnetization Effects 0.000 description 6
- 229910052779 Neodymium Inorganic materials 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 5
- 239000007791 liquid phase Substances 0.000 description 5
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- 239000000843 powder Substances 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 238000010298 pulverizing process Methods 0.000 description 4
- 238000000137 annealing Methods 0.000 description 3
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- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 230000005347 demagnetization Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 150000002910 rare earth metals Chemical class 0.000 description 3
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-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
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
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- 229910052733 gallium Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
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- 238000011068 loading method Methods 0.000 description 2
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 description 2
- 229910052758 niobium Inorganic materials 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 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
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- 239000007795 chemical reaction product Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
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- 239000002245 particle Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000700 radioactive tracer Substances 0.000 description 1
- 229910001404 rare earth metal oxide Inorganic materials 0.000 description 1
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- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 239000007858 starting material Substances 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
- 229910000859 α-Fe Inorganic materials 0.000 description 1
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- Hard Magnetic Materials (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
Abstract
Description
Claims (3)
- 処理室内に、Dy、Tb及びHoの中から選択された少なくとも1種を含有する板状の蒸発材料と、所定形状の鉄−ホウ素−希土類系の焼結磁石の複数個とを間隔を存して対向配置し、減圧下で処理室内を加熱して焼結磁石を所定温度に加熱すると共に蒸発材料を蒸発させ、この蒸発したDy、Tb及びHoの中から選択された少なくとも1種を焼結磁石表面への供給量を調節して付着させ、この付着したDy、Tb及びHoの中から選択された少なくとも1種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永久磁石の製造方法において、
前記焼結磁石の自重が作用しない姿勢で当該焼結磁石を保持することを特徴とする永久磁石の製造方法。 - 請求項1記載の永久磁石の製造方法であって、前記処理室を画成する処理箱内に前記蒸発材料と前記焼結磁石とが収納され、この処理箱を真空熱処理炉内に設置した後、真空熱処理炉の減圧下で処理箱が加熱されるものにおいて、
支持枠とこの支持枠に互いに平行に架設される線材とを備える保持部材の互いに隣接する二本の線材間で各焼結磁石を挟持し、保持部材と蒸発材料とを上下に交互に積み重ねて処理箱内に収納することを特徴とする永久磁石の製造方法。 - 前記処理箱は、上部が開口した箱部とこの箱部の開口面に着脱自在に装着される蓋部とで構成される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。
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN105742048A (zh) * | 2016-04-28 | 2016-07-06 | 北京科技大学 | 一种离子注入稀土及合金提高烧结钕铁硼磁体性能的方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05315173A (ja) * | 1992-05-12 | 1993-11-26 | Seiko Epson Corp | 希土類永久磁石の製造方法 |
WO2009057592A1 (ja) * | 2007-10-31 | 2009-05-07 | Ulvac, Inc. | 永久磁石の製造方法及び永久磁石 |
JP2011204965A (ja) * | 2010-03-26 | 2011-10-13 | Hitachi Metals Ltd | R−t−b系焼結磁石の製造方法およびrh拡散処理用治具 |
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05315173A (ja) * | 1992-05-12 | 1993-11-26 | Seiko Epson Corp | 希土類永久磁石の製造方法 |
WO2009057592A1 (ja) * | 2007-10-31 | 2009-05-07 | Ulvac, Inc. | 永久磁石の製造方法及び永久磁石 |
JP2011204965A (ja) * | 2010-03-26 | 2011-10-13 | Hitachi Metals Ltd | R−t−b系焼結磁石の製造方法およびrh拡散処理用治具 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105742048A (zh) * | 2016-04-28 | 2016-07-06 | 北京科技大学 | 一种离子注入稀土及合金提高烧结钕铁硼磁体性能的方法 |
CN105742048B (zh) * | 2016-04-28 | 2018-03-30 | 北京科技大学 | 一种离子注入稀土及合金提高烧结钕铁硼磁体性能的方法 |
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