JP2004250781A5 - - Google Patents
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- Publication number
- JP2004250781A5 JP2004250781A5 JP2003349469A JP2003349469A JP2004250781A5 JP 2004250781 A5 JP2004250781 A5 JP 2004250781A5 JP 2003349469 A JP2003349469 A JP 2003349469A JP 2003349469 A JP2003349469 A JP 2003349469A JP 2004250781 A5 JP2004250781 A5 JP 2004250781A5
- Authority
- JP
- Japan
- Prior art keywords
- permanent magnet
- mass
- sintered
- sintered permanent
- slurry
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 239000002002 slurry Substances 0.000 claims description 121
- 239000000843 powder Substances 0.000 claims description 110
- 239000002480 mineral oil Substances 0.000 claims description 70
- 235000010446 mineral oil Nutrition 0.000 claims description 70
- 239000003921 oil Substances 0.000 claims description 65
- 230000004907 flux Effects 0.000 claims description 62
- 229910052760 oxygen Inorganic materials 0.000 claims description 52
- 239000000203 mixture Substances 0.000 claims description 48
- ZGKNDXOLMOFEJH-UHFFFAOYSA-M Sodium hypophosphite Chemical compound [Na+].[O-]P=O ZGKNDXOLMOFEJH-UHFFFAOYSA-M 0.000 claims description 38
- 229910001379 sodium hypophosphite Inorganic materials 0.000 claims description 38
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 34
- 238000000465 moulding Methods 0.000 claims description 32
- 229910052757 nitrogen Inorganic materials 0.000 claims description 28
- 238000010438 heat treatment Methods 0.000 claims description 27
- 239000001301 oxygen Substances 0.000 claims description 26
- MYMOFIZGZYHOMD-UHFFFAOYSA-N oxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 26
- 229910052799 carbon Inorganic materials 0.000 claims description 22
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 22
- 229910052803 cobalt Inorganic materials 0.000 claims description 21
- 238000004519 manufacturing process Methods 0.000 claims description 20
- 229910052782 aluminium Inorganic materials 0.000 claims description 17
- 229910052698 phosphorus Inorganic materials 0.000 claims description 17
- 229910052796 boron Inorganic materials 0.000 claims description 16
- 235000011187 glycerol Nutrition 0.000 claims description 13
- 150000002910 rare earth metals Chemical class 0.000 claims description 11
- 238000009826 distribution Methods 0.000 claims description 9
- 229910052758 niobium Inorganic materials 0.000 claims description 9
- 238000005245 sintering Methods 0.000 claims description 9
- PEDCQBHIVMGVHV-UHFFFAOYSA-N glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- 230000002093 peripheral Effects 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 6
- 235000019198 oils Nutrition 0.000 description 50
- 238000002347 injection Methods 0.000 description 44
- 239000007924 injection Substances 0.000 description 44
- 239000010949 copper Substances 0.000 description 29
- 239000000523 sample Substances 0.000 description 26
- 238000004458 analytical method Methods 0.000 description 25
- 230000000052 comparative effect Effects 0.000 description 25
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 23
- 239000000243 solution Substances 0.000 description 22
- 229910001873 dinitrogen Inorganic materials 0.000 description 17
- 230000005415 magnetization Effects 0.000 description 17
- 239000010955 niobium Substances 0.000 description 17
- 239000002245 particle Substances 0.000 description 17
- 229910052779 Neodymium Inorganic materials 0.000 description 15
- 229910052733 gallium Inorganic materials 0.000 description 15
- 239000007789 gas Substances 0.000 description 14
- 229910052692 Dysprosium Inorganic materials 0.000 description 13
- 229910052777 Praseodymium Inorganic materials 0.000 description 13
- 229910052802 copper Inorganic materials 0.000 description 13
- 239000012071 phase Substances 0.000 description 13
- 238000004453 electron probe microanalysis Methods 0.000 description 12
- 230000000694 effects Effects 0.000 description 11
- 239000000956 alloy Substances 0.000 description 10
- 229910045601 alloy Inorganic materials 0.000 description 10
- REDXJYDRNCIFBQ-UHFFFAOYSA-N aluminium(3+) Chemical class [Al+3] REDXJYDRNCIFBQ-UHFFFAOYSA-N 0.000 description 10
- 238000011049 filling Methods 0.000 description 10
- 238000005259 measurement Methods 0.000 description 8
- 238000010298 pulverizing process Methods 0.000 description 7
- 238000005260 corrosion Methods 0.000 description 6
- 238000007254 oxidation reaction Methods 0.000 description 6
- 238000007792 addition Methods 0.000 description 5
- 230000003647 oxidation Effects 0.000 description 5
- 239000002904 solvent Substances 0.000 description 5
- 238000005520 cutting process Methods 0.000 description 4
- 230000001965 increased Effects 0.000 description 4
- 238000003754 machining Methods 0.000 description 4
- TWXTWZIUMCFMSG-UHFFFAOYSA-N nitride(3-) Chemical compound [N-3] TWXTWZIUMCFMSG-UHFFFAOYSA-N 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 3
- 238000005121 nitriding Methods 0.000 description 3
- -1 sodium phosphite glycerin Chemical compound 0.000 description 3
- 230000001629 suppression Effects 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- QXUAMGWCVYZOLV-UHFFFAOYSA-N boride(3-) Chemical compound [B-3] QXUAMGWCVYZOLV-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000000280 densification Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910052904 quartz Inorganic materials 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 229910052684 Cerium Inorganic materials 0.000 description 1
- 229910017061 Fe Co Inorganic materials 0.000 description 1
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 1
- 229910001096 P alloy Inorganic materials 0.000 description 1
- 230000002378 acidificating Effects 0.000 description 1
- 230000001154 acute Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000003125 aqueous solvent Substances 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000002708 enhancing Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000011068 load Methods 0.000 description 1
- 239000006247 magnetic powder Substances 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 230000000452 restraining Effects 0.000 description 1
- 229910000162 sodium phosphate Inorganic materials 0.000 description 1
- 239000001488 sodium phosphate Substances 0.000 description 1
- 230000002269 spontaneous Effects 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 230000003245 working Effects 0.000 description 1
- 238000004876 x-ray fluorescence Methods 0.000 description 1
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003349469A JP2004250781A (ja) | 2002-10-08 | 2003-10-08 | 焼結型永久磁石およびその製造方法 |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002294431 | 2002-10-08 | ||
| JP2002362391 | 2002-12-13 | ||
| JP2003020669 | 2003-01-29 | ||
| JP2003349469A JP2004250781A (ja) | 2002-10-08 | 2003-10-08 | 焼結型永久磁石およびその製造方法 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2008007983A Division JP4706872B2 (ja) | 2002-10-08 | 2008-01-17 | 焼結型永久磁石の製造方法及び金型 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2004250781A JP2004250781A (ja) | 2004-09-09 |
| JP2004250781A5 true JP2004250781A5 (zh) | 2005-09-29 |
Family
ID=33033256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2003349469A Pending JP2004250781A (ja) | 2002-10-08 | 2003-10-08 | 焼結型永久磁石およびその製造方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2004250781A (zh) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4543940B2 (ja) * | 2005-01-25 | 2010-09-15 | Ｔｄｋ株式会社 | Ｒ−ｔ−ｂ系焼結磁石の製造方法 |
| JP4802927B2 (ja) * | 2006-08-04 | 2011-10-26 | 日立金属株式会社 | 希土類焼結磁石及びその製造方法 |
| JP5266523B2 (ja) * | 2008-04-15 | 2013-08-21 | 日東電工株式会社 | 永久磁石及び永久磁石の製造方法 |
| JP5266522B2 (ja) * | 2008-04-15 | 2013-08-21 | 日東電工株式会社 | 永久磁石及び永久磁石の製造方法 |
| JP5261747B2 (ja) * | 2008-04-15 | 2013-08-14 | 日東電工株式会社 | 永久磁石及び永久磁石の製造方法 |
| US8500921B2 (en) | 2010-03-31 | 2013-08-06 | Nitto Denko Corporation | Permanent magnet and manufacturing method thereof |
| WO2011125585A1 (ja) | 2010-03-31 | 2011-10-13 | 日東電工株式会社 | 永久磁石及び永久磁石の製造方法 |
| EP2503570B1 (en) | 2010-03-31 | 2015-01-21 | Nitto Denko Corporation | Manufacturing method for permanent magnet |
| KR101189840B1 (ko) | 2010-03-31 | 2012-10-10 | 닛토덴코 가부시키가이샤 | 영구 자석 및 영구 자석의 제조 방법 |
| EP2503568B1 (en) | 2010-03-31 | 2014-06-11 | Nitto Denko Corporation | Manufacturing method for permanent magnet |
| JP5501826B2 (ja) * | 2010-03-31 | 2014-05-28 | 日東電工株式会社 | 希土類焼結磁石の製造方法 |
| JP6476640B2 (ja) * | 2013-08-09 | 2019-03-06 | Tdk株式会社 | Ｒ−ｔ−ｂ系焼結磁石 |
| JP5983598B2 (ja) | 2013-12-27 | 2016-08-31 | トヨタ自動車株式会社 | 希土類磁石の製造方法 |
| US20200161032A1 (en) * | 2017-05-08 | 2020-05-21 | Nitto Denko Corporation | Rare-earth sintered magnet and rare-earth sintered magnet sintered body for use with same, and magnetic field applying device usable for manufacturing same |
-
2003
- 2003-10-08 JP JP2003349469A patent/JP2004250781A/ja active Pending
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