JP2002164239A - 希土類焼結磁石の製造方法およびリング磁石およびアークセグメント磁石 - Google Patents
希土類焼結磁石の製造方法およびリング磁石およびアークセグメント磁石Info
- Publication number
- JP2002164239A JP2002164239A JP2001279656A JP2001279656A JP2002164239A JP 2002164239 A JP2002164239 A JP 2002164239A JP 2001279656 A JP2001279656 A JP 2001279656A JP 2001279656 A JP2001279656 A JP 2001279656A JP 2002164239 A JP2002164239 A JP 2002164239A
- Authority
- JP
- Japan
- Prior art keywords
- magnet
- arc segment
- less
- rare earth
- weight
- 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
Links
- 229910052761 rare earth metal Inorganic materials 0.000 title claims abstract description 34
- 150000002910 rare earth metals Chemical class 0.000 title claims abstract description 20
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 239000002002 slurry Substances 0.000 claims abstract description 57
- 239000000843 powder Substances 0.000 claims abstract description 40
- 239000001301 oxygen Substances 0.000 claims abstract description 34
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 34
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 33
- 239000000314 lubricant Substances 0.000 claims abstract description 32
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 22
- 239000000956 alloy Substances 0.000 claims abstract description 22
- 239000003921 oil Substances 0.000 claims abstract description 20
- 235000019198 oils Nutrition 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 18
- 239000002245 particle Substances 0.000 claims abstract description 17
- 239000012298 atmosphere Substances 0.000 claims abstract description 12
- 235000014113 dietary fatty acids Nutrition 0.000 claims abstract description 12
- 239000000194 fatty acid Substances 0.000 claims abstract description 12
- 229930195729 fatty acid Natural products 0.000 claims abstract description 12
- -1 alcohol ester Chemical class 0.000 claims abstract description 11
- 229910052777 Praseodymium Inorganic materials 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 claims abstract description 10
- 230000001590 oxidative effect Effects 0.000 claims abstract description 9
- 150000004665 fatty acids Chemical class 0.000 claims abstract description 8
- 229910052727 yttrium Inorganic materials 0.000 claims abstract description 8
- 150000007519 polyprotic acids Polymers 0.000 claims abstract description 6
- 150000005846 sugar alcohols Polymers 0.000 claims abstract description 6
- 235000015112 vegetable and seed oil Nutrition 0.000 claims abstract description 6
- 239000008158 vegetable oil Substances 0.000 claims abstract description 6
- 229910052723 transition metal Inorganic materials 0.000 claims abstract description 4
- 150000003624 transition metals Chemical group 0.000 claims abstract description 4
- 229910052742 iron Inorganic materials 0.000 claims abstract description 3
- 230000005291 magnetic effect Effects 0.000 claims description 77
- 230000004907 flux Effects 0.000 claims description 23
- 238000010438 heat treatment Methods 0.000 claims description 17
- 238000005245 sintering Methods 0.000 claims description 14
- 238000002441 X-ray diffraction Methods 0.000 claims description 13
- 239000002480 mineral oil Substances 0.000 claims description 9
- 235000010446 mineral oil Nutrition 0.000 claims description 9
- 150000001298 alcohols Chemical class 0.000 claims description 7
- 239000012535 impurity Substances 0.000 claims description 6
- 150000002148 esters Chemical class 0.000 claims description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 abstract description 3
- 239000010419 fine particle Substances 0.000 abstract 1
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract 1
- 239000011707 mineral Substances 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 38
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 28
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 21
- 229910052799 carbon Inorganic materials 0.000 description 21
- 238000000465 moulding Methods 0.000 description 15
- 230000002829 reductive effect Effects 0.000 description 15
- 229910052757 nitrogen Inorganic materials 0.000 description 13
- 239000002994 raw material Substances 0.000 description 11
- QYDYPVFESGNLHU-UHFFFAOYSA-N elaidic acid methyl ester Natural products CCCCCCCCC=CCCCCCCCC(=O)OC QYDYPVFESGNLHU-UHFFFAOYSA-N 0.000 description 10
- QYDYPVFESGNLHU-KHPPLWFESA-N methyl oleate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OC QYDYPVFESGNLHU-KHPPLWFESA-N 0.000 description 10
- 229940073769 methyl oleate Drugs 0.000 description 10
- 230000007423 decrease Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 9
- 230000007797 corrosion Effects 0.000 description 8
- 238000005260 corrosion Methods 0.000 description 8
- 239000000203 mixture Substances 0.000 description 8
- 229910052802 copper Inorganic materials 0.000 description 7
- 229910052733 gallium Inorganic materials 0.000 description 7
- 229910052692 Dysprosium Inorganic materials 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 6
- 238000001816 cooling Methods 0.000 description 6
- 125000001183 hydrocarbyl group Chemical group 0.000 description 6
- 229910052758 niobium Inorganic materials 0.000 description 6
- 238000010298 pulverizing process Methods 0.000 description 6
- 239000012300 argon atmosphere Substances 0.000 description 5
- 238000005520 cutting process Methods 0.000 description 5
- 230000006872 improvement Effects 0.000 description 5
- 239000011261 inert gas Substances 0.000 description 5
- 229910000765 intermetallic Inorganic materials 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- HPEUJPJOZXNMSJ-UHFFFAOYSA-N Methyl stearate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OC HPEUJPJOZXNMSJ-UHFFFAOYSA-N 0.000 description 4
- 239000013078 crystal Substances 0.000 description 4
- 238000011049 filling Methods 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 125000004432 carbon atom Chemical group C* 0.000 description 3
- 239000003822 epoxy resin Substances 0.000 description 3
- 230000005294 ferromagnetic effect Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 230000005415 magnetization Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 229920000647 polyepoxide Polymers 0.000 description 3
- 230000008707 rearrangement Effects 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 238000004381 surface treatment Methods 0.000 description 3
- ALSTYHKOOCGGFT-KTKRTIGZSA-N (9Z)-octadecen-1-ol Chemical compound CCCCCCCC\C=C/CCCCCCCCO ALSTYHKOOCGGFT-KTKRTIGZSA-N 0.000 description 2
- QGLWBTPVKHMVHM-KTKRTIGZSA-N (z)-octadec-9-en-1-amine Chemical compound CCCCCCCC\C=C/CCCCCCCCN QGLWBTPVKHMVHM-KTKRTIGZSA-N 0.000 description 2
- ALKCLFLTXBBMMP-UHFFFAOYSA-N 3,7-dimethylocta-1,6-dien-3-yl hexanoate Chemical compound CCCCCC(=O)OC(C)(C=C)CCC=C(C)C ALKCLFLTXBBMMP-UHFFFAOYSA-N 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 239000003945 anionic surfactant Substances 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 238000000748 compression moulding Methods 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000004070 electrodeposition Methods 0.000 description 2
- CAMHHLOGFDZBBG-UHFFFAOYSA-N epoxidized methyl oleate Natural products CCCCCCCCC1OC1CCCCCCCC(=O)OC CAMHHLOGFDZBBG-UHFFFAOYSA-N 0.000 description 2
- 229910052735 hafnium Inorganic materials 0.000 description 2
- QSQLTHHMFHEFIY-UHFFFAOYSA-N methyl behenate Chemical compound CCCCCCCCCCCCCCCCCCCCCC(=O)OC QSQLTHHMFHEFIY-UHFFFAOYSA-N 0.000 description 2
- YRHYCMZPEVDGFQ-UHFFFAOYSA-N methyl decanoate Chemical compound CCCCCCCCCC(=O)OC YRHYCMZPEVDGFQ-UHFFFAOYSA-N 0.000 description 2
- UQDUPQYQJKYHQI-UHFFFAOYSA-N methyl laurate Chemical compound CCCCCCCCCCCC(=O)OC UQDUPQYQJKYHQI-UHFFFAOYSA-N 0.000 description 2
- ZAZKJZBWRNNLDS-UHFFFAOYSA-N methyl tetradecanoate Chemical compound CCCCCCCCCCCCCC(=O)OC ZAZKJZBWRNNLDS-UHFFFAOYSA-N 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 239000002736 nonionic surfactant Substances 0.000 description 2
- 229940055577 oleyl alcohol Drugs 0.000 description 2
- XMLQWXUVTXCDDL-UHFFFAOYSA-N oleyl alcohol Natural products CCCCCCC=CCCCCCCCCCCO XMLQWXUVTXCDDL-UHFFFAOYSA-N 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 238000013001 point bending Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 229910052715 tantalum Inorganic materials 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 229910052720 vanadium Inorganic materials 0.000 description 2
- 229910052726 zirconium Inorganic materials 0.000 description 2
- RLPSARLYTKXVSE-UHFFFAOYSA-N 1-(1,3-thiazol-5-yl)ethanamine Chemical compound CC(N)C1=CN=CS1 RLPSARLYTKXVSE-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- BJQHLKABXJIVAM-UHFFFAOYSA-N Diethylhexyl phthalate Natural products CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 description 1
- RDOFJDLLWVCMRU-UHFFFAOYSA-N Diisobutyl adipate Chemical compound CC(C)COC(=O)CCCCC(=O)OCC(C)C RDOFJDLLWVCMRU-UHFFFAOYSA-N 0.000 description 1
- 229910017061 Fe Co Inorganic materials 0.000 description 1
- 229910052779 Neodymium Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 1
- PRXRUNOAOLTIEF-ADSICKODSA-N Sorbitan trioleate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OC[C@@H](OC(=O)CCCCCCC\C=C/CCCCCCCC)[C@H]1OC[C@H](O)[C@H]1OC(=O)CCCCCCC\C=C/CCCCCCCC PRXRUNOAOLTIEF-ADSICKODSA-N 0.000 description 1
- 239000004147 Sorbitan trioleate Substances 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- 229910001117 Tb alloy Inorganic materials 0.000 description 1
- KXKVLQRXCPHEJC-UHFFFAOYSA-N acetic acid trimethyl ester Natural products COC(C)=O KXKVLQRXCPHEJC-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- QZULIRBSQUIUTA-CLFAGFIQSA-N bis[(z)-octadec-9-enyl] hexanedioate Chemical compound CCCCCCCC\C=C/CCCCCCCCOC(=O)CCCCC(=O)OCCCCCCCC\C=C/CCCCCCCC QZULIRBSQUIUTA-CLFAGFIQSA-N 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 229940031769 diisobutyl adipate Drugs 0.000 description 1
- HBGGXOJOCNVPFY-UHFFFAOYSA-N diisononyl phthalate Chemical compound CC(C)CCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCC(C)C HBGGXOJOCNVPFY-UHFFFAOYSA-N 0.000 description 1
- YCZJVRCZIPDYHH-UHFFFAOYSA-N ditridecyl benzene-1,2-dicarboxylate Chemical compound CCCCCCCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCCCCCCC YCZJVRCZIPDYHH-UHFFFAOYSA-N 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000005194 fractionation Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000010902 jet-milling Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- DJDSLBVSSOQSLW-UHFFFAOYSA-N mono(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(O)=O DJDSLBVSSOQSLW-UHFFFAOYSA-N 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- XNGIFLGASWRNHJ-UHFFFAOYSA-L phthalate(2-) Chemical compound [O-]C(=O)C1=CC=CC=C1C([O-])=O XNGIFLGASWRNHJ-UHFFFAOYSA-L 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 229910001404 rare earth metal oxide Inorganic materials 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
- 239000003870 refractory metal Substances 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229960000391 sorbitan trioleate Drugs 0.000 description 1
- 235000019337 sorbitan trioleate Nutrition 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 238000012360 testing method Methods 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
Landscapes
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
- Powder Metallurgy (AREA)
- Hard Magnetic Materials (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001279656A JP2002164239A (ja) | 2000-09-14 | 2001-09-14 | 希土類焼結磁石の製造方法およびリング磁石およびアークセグメント磁石 |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000280104 | 2000-09-14 | ||
| JP2000-280104 | 2000-09-14 | ||
| JP2001279656A JP2002164239A (ja) | 2000-09-14 | 2001-09-14 | 希土類焼結磁石の製造方法およびリング磁石およびアークセグメント磁石 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002164239A true JP2002164239A (ja) | 2002-06-07 |
| JP2002164239A5 JP2002164239A5 (enExample) | 2007-03-01 |
Family
ID=26600003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001279656A Pending JP2002164239A (ja) | 2000-09-14 | 2001-09-14 | 希土類焼結磁石の製造方法およびリング磁石およびアークセグメント磁石 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002164239A (enExample) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004029995A1 (ja) * | 2002-09-30 | 2004-04-08 | Tdk Corporation | Ｒ−ｔ−ｂ系希土類永久磁石 |
| WO2004029999A1 (ja) * | 2002-09-30 | 2004-04-08 | Tdk Corporation | Ｒ−ｔ−ｂ系希土類永久磁石 |
| WO2004029997A1 (ja) * | 2002-09-30 | 2004-04-08 | Tdk Corporation | Ｒ−ｔ−ｂ系希土類永久磁石及び磁石組成物 |
| US7314531B2 (en) | 2003-03-28 | 2008-01-01 | Tdk Corporation | R-T-B system rare earth permanent magnet |
| CN100431062C (zh) * | 2002-10-08 | 2008-11-05 | 日立金属株会社 | 烧结型R-Fe-B系永磁体及其制造方法 |
| WO2009128458A1 (ja) * | 2008-04-15 | 2009-10-22 | 日東電工株式会社 | 永久磁石及び永久磁石の製造方法 |
| WO2009128459A1 (ja) * | 2008-04-15 | 2009-10-22 | 日東電工株式会社 | 永久磁石及び永久磁石の製造方法 |
| JP2012050329A (ja) * | 2011-11-24 | 2012-03-08 | Nitto Denko Corp | モータ用永久磁石及びモータ用永久磁石の製造方法 |
| US9093218B2 (en) | 2008-03-18 | 2015-07-28 | Nitto Denko Corporation | Permanent magnet for motor, and method for manufacturing the permanent magnet for motor |
| CN107610861A (zh) * | 2017-09-26 | 2018-01-19 | 北京京磁电工科技有限公司 | 钕铁硼磁体的高剩磁制备工艺 |
| CN107622853A (zh) * | 2016-07-15 | 2018-01-23 | Tdk株式会社 | R‑t‑b系稀土类永久磁铁 |
| JP2021082826A (ja) * | 2015-03-24 | 2021-05-27 | 日東電工株式会社 | 希土類磁石形成用焼結体の製造方法 |
-
2001
- 2001-09-14 JP JP2001279656A patent/JP2002164239A/ja active Pending
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004029995A1 (ja) * | 2002-09-30 | 2004-04-08 | Tdk Corporation | Ｒ−ｔ−ｂ系希土類永久磁石 |
| WO2004029999A1 (ja) * | 2002-09-30 | 2004-04-08 | Tdk Corporation | Ｒ−ｔ−ｂ系希土類永久磁石 |
| WO2004029997A1 (ja) * | 2002-09-30 | 2004-04-08 | Tdk Corporation | Ｒ−ｔ−ｂ系希土類永久磁石及び磁石組成物 |
| WO2004029996A1 (ja) * | 2002-09-30 | 2004-04-08 | Tdk Corporation | Ｒ−ｔ−ｂ系希土類永久磁石 |
| WO2004030000A1 (ja) * | 2002-09-30 | 2004-04-08 | Tdk Corporation | Ｒ−ｔ−ｂ系希土類永久磁石の製造方法 |
| WO2004029998A1 (ja) * | 2002-09-30 | 2004-04-08 | Tdk Corporation | Ｒ−ｔ−ｂ系希土類永久磁石の製造方法 |
| US7311788B2 (en) | 2002-09-30 | 2007-12-25 | Tdk Corporation | R-T-B system rare earth permanent magnet |
| CN100431062C (zh) * | 2002-10-08 | 2008-11-05 | 日立金属株会社 | 烧结型R-Fe-B系永磁体及其制造方法 |
| US7314531B2 (en) | 2003-03-28 | 2008-01-01 | Tdk Corporation | R-T-B system rare earth permanent magnet |
| US9093218B2 (en) | 2008-03-18 | 2015-07-28 | Nitto Denko Corporation | Permanent magnet for motor, and method for manufacturing the permanent magnet for motor |
| WO2009128459A1 (ja) * | 2008-04-15 | 2009-10-22 | 日東電工株式会社 | 永久磁石及び永久磁石の製造方法 |
| JP2009259955A (ja) * | 2008-04-15 | 2009-11-05 | Nitto Denko Corp | 永久磁石及び永久磁石の製造方法 |
| JP2009259956A (ja) * | 2008-04-15 | 2009-11-05 | Nitto Denko Corp | 永久磁石及び永久磁石の製造方法 |
| US8333848B2 (en) | 2008-04-15 | 2012-12-18 | Nitto Denko Corporation | Permanent magnet and process for producing permanent magnet |
| US8500922B2 (en) | 2008-04-15 | 2013-08-06 | Nitto Denko Corporation | Permanent magnet and process for producing permanent magnet |
| KR101458255B1 (ko) * | 2008-04-15 | 2014-11-04 | 닛토덴코 가부시키가이샤 | 영구 자석 및 영구 자석의 제조 방법 |
| KR101458256B1 (ko) * | 2008-04-15 | 2014-11-04 | 닛토덴코 가부시키가이샤 | 영구 자석 및 영구 자석의 제조 방법 |
| WO2009128458A1 (ja) * | 2008-04-15 | 2009-10-22 | 日東電工株式会社 | 永久磁石及び永久磁石の製造方法 |
| JP2012050329A (ja) * | 2011-11-24 | 2012-03-08 | Nitto Denko Corp | モータ用永久磁石及びモータ用永久磁石の製造方法 |
| JP2021082826A (ja) * | 2015-03-24 | 2021-05-27 | 日東電工株式会社 | 希土類磁石形成用焼結体の製造方法 |
| CN107622853A (zh) * | 2016-07-15 | 2018-01-23 | Tdk株式会社 | R‑t‑b系稀土类永久磁铁 |
| CN107622853B (zh) * | 2016-07-15 | 2019-09-20 | Tdk株式会社 | R-t-b系稀土类永久磁铁 |
| CN107610861A (zh) * | 2017-09-26 | 2018-01-19 | 北京京磁电工科技有限公司 | 钕铁硼磁体的高剩磁制备工艺 |
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