JP5299737B2 - Ｒ−ｔ−ｂ系焼結永久磁石用急冷合金およびそれを用いたｒ−ｔ−ｂ系焼結永久磁石 - Google Patents
Ｒ−ｔ−ｂ系焼結永久磁石用急冷合金およびそれを用いたｒ−ｔ−ｂ系焼結永久磁石 Download PDFInfo
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- JP5299737B2 JP5299737B2 JP2007255098A JP2007255098A JP5299737B2 JP 5299737 B2 JP5299737 B2 JP 5299737B2 JP 2007255098 A JP2007255098 A JP 2007255098A JP 2007255098 A JP2007255098 A JP 2007255098A JP 5299737 B2 JP5299737 B2 JP 5299737B2
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- alloy
- rtb
- sintered permanent
- quenched
- permanent magnet
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- 229910045601 alloy Inorganic materials 0.000 title claims description 132
- 239000000956 alloy Substances 0.000 title claims description 132
- 238000001816 cooling Methods 0.000 claims description 99
- 239000000843 powder Substances 0.000 claims description 37
- 238000000034 method Methods 0.000 claims description 34
- 238000010791 quenching Methods 0.000 claims description 34
- 230000000171 quenching effect Effects 0.000 claims description 32
- 238000002441 X-ray diffraction Methods 0.000 claims description 21
- 238000004519 manufacturing process Methods 0.000 claims description 15
- 238000005245 sintering Methods 0.000 claims description 15
- 238000005096 rolling process Methods 0.000 claims description 13
- 230000006911 nucleation Effects 0.000 claims description 11
- 238000010899 nucleation Methods 0.000 claims description 11
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 11
- 230000005415 magnetization Effects 0.000 claims description 7
- 229910052723 transition metal Inorganic materials 0.000 claims description 7
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical group [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 6
- 229910052796 boron Inorganic materials 0.000 claims description 6
- 239000012071 phase Substances 0.000 description 48
- 230000005291 magnetic effect Effects 0.000 description 35
- 239000013078 crystal Substances 0.000 description 29
- 239000002245 particle Substances 0.000 description 24
- 238000010298 pulverizing process Methods 0.000 description 17
- 230000000052 comparative effect Effects 0.000 description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 15
- 230000002093 peripheral effect Effects 0.000 description 14
- 230000004907 flux Effects 0.000 description 12
- 229910052751 metal Inorganic materials 0.000 description 9
- 239000002184 metal Substances 0.000 description 9
- 238000000465 moulding Methods 0.000 description 9
- 238000005259 measurement Methods 0.000 description 8
- 239000000203 mixture Substances 0.000 description 6
- 230000007423 decrease Effects 0.000 description 5
- 210000001787 dendrite Anatomy 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 5
- 238000002844 melting Methods 0.000 description 5
- 229910052692 Dysprosium Inorganic materials 0.000 description 4
- 238000005266 casting Methods 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 238000009826 distribution Methods 0.000 description 4
- 238000000227 grinding Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- -1 tetragonal compound Chemical class 0.000 description 4
- 229910000521 B alloy Inorganic materials 0.000 description 3
- 229910052771 Terbium Inorganic materials 0.000 description 3
- 239000012298 atmosphere Substances 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 229910052779 Neodymium Inorganic materials 0.000 description 2
- 229910052777 Praseodymium Inorganic materials 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000006467 substitution reaction 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
- 229910000952 Be alloy Inorganic materials 0.000 description 1
- 229910052684 Cerium Inorganic materials 0.000 description 1
- 229910000722 Didymium Inorganic materials 0.000 description 1
- 241000224487 Didymium Species 0.000 description 1
- 229910001122 Mischmetal Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000012300 argon atmosphere Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 229910052735 hafnium Inorganic materials 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 238000000462 isostatic pressing Methods 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- 238000007561 laser diffraction method Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000000634 powder X-ray diffraction Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 150000002910 rare earth metals Chemical group 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
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- Continuous Casting (AREA)
- Powder Metallurgy (AREA)
- Hard Magnetic Materials (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007255098A JP5299737B2 (ja) | 2007-09-28 | 2007-09-28 | Ｒ−ｔ−ｂ系焼結永久磁石用急冷合金およびそれを用いたｒ−ｔ−ｂ系焼結永久磁石 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007255098A JP5299737B2 (ja) | 2007-09-28 | 2007-09-28 | Ｒ−ｔ−ｂ系焼結永久磁石用急冷合金およびそれを用いたｒ−ｔ−ｂ系焼結永久磁石 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2009084626A JP2009084626A (ja) | 2009-04-23 |
| JP2009084626A5 JP2009084626A5 (enExample) | 2011-11-24 |
| JP5299737B2 true JP5299737B2 (ja) | 2013-09-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2007255098A Active JP5299737B2 (ja) | 2007-09-28 | 2007-09-28 | Ｒ−ｔ−ｂ系焼結永久磁石用急冷合金およびそれを用いたｒ−ｔ−ｂ系焼結永久磁石 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP5299737B2 (enExample) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011258935A (ja) * | 2010-05-14 | 2011-12-22 | Shin Etsu Chem Co Ltd | Ｒ−ｔ−ｂ系希土類焼結磁石 |
| JP5692231B2 (ja) * | 2010-07-16 | 2015-04-01 | トヨタ自動車株式会社 | 希土類磁石の製造方法、及び希土類磁石 |
| JP5949775B2 (ja) * | 2011-10-13 | 2016-07-13 | Tdk株式会社 | Ｒ−ｔ−ｂ系焼結磁石及びその製造方法、並びに回転機 |
| JP5942922B2 (ja) * | 2013-05-08 | 2016-06-29 | 信越化学工業株式会社 | 希土類焼結磁石の製造方法 |
| JP6875336B2 (ja) | 2018-08-27 | 2021-05-26 | 信越化学工業株式会社 | 成膜方法 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006041334A (ja) * | 2004-07-29 | 2006-02-09 | Tdk Corp | 希土類焼結磁石 |
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- 2007-09-28 JP JP2007255098A patent/JP5299737B2/ja active Active
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| Publication number | Publication date |
|---|---|
| JP2009084626A (ja) | 2009-04-23 |
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