JP4391980B2 - 磁気異方性希土類焼結磁石の製造方法及び製造装置 - Google Patents
磁気異方性希土類焼結磁石の製造方法及び製造装置 Download PDFInfo
- Publication number
- JP4391980B2 JP4391980B2 JP2005322921A JP2005322921A JP4391980B2 JP 4391980 B2 JP4391980 B2 JP 4391980B2 JP 2005322921 A JP2005322921 A JP 2005322921A JP 2005322921 A JP2005322921 A JP 2005322921A JP 4391980 B2 JP4391980 B2 JP 4391980B2
- Authority
- JP
- Japan
- Prior art keywords
- mold
- rare earth
- magnetic field
- powder
- sintered magnet
- 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.)
- Expired - Fee Related
Links
- 230000005291 magnetic effect Effects 0.000 title claims description 291
- 238000004519 manufacturing process Methods 0.000 title claims description 142
- 229910052761 rare earth metal Inorganic materials 0.000 title claims description 94
- 150000002910 rare earth metals Chemical class 0.000 title claims description 74
- 239000000843 powder Substances 0.000 claims description 335
- 238000000034 method Methods 0.000 claims description 191
- 238000005245 sintering Methods 0.000 claims description 160
- 229910045601 alloy Inorganic materials 0.000 claims description 115
- 239000000956 alloy Substances 0.000 claims description 115
- 239000002245 particle Substances 0.000 claims description 64
- 238000011049 filling Methods 0.000 claims description 45
- 230000008569 process Effects 0.000 claims description 40
- 239000000463 material Substances 0.000 claims description 31
- 239000000314 lubricant Substances 0.000 claims description 27
- 230000005415 magnetization Effects 0.000 claims description 23
- 239000007789 gas Substances 0.000 claims description 16
- 239000011261 inert gas Substances 0.000 claims description 16
- 239000010687 lubricating oil Substances 0.000 claims description 16
- 238000010438 heat treatment Methods 0.000 claims description 15
- 229910001172 neodymium magnet Inorganic materials 0.000 claims description 13
- 238000009826 distribution Methods 0.000 claims description 11
- 239000007787 solid Substances 0.000 claims description 11
- 239000003302 ferromagnetic material Substances 0.000 claims description 9
- 229910052692 Dysprosium Inorganic materials 0.000 claims description 7
- 229910052771 Terbium Inorganic materials 0.000 claims description 7
- 239000000696 magnetic material Substances 0.000 claims description 5
- -1 fatty acid ester Chemical class 0.000 claims description 3
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 2
- 239000000194 fatty acid Substances 0.000 claims description 2
- 229930195729 fatty acid Natural products 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 229920000642 polymer Polymers 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 48
- 238000002474 experimental method Methods 0.000 description 39
- 238000012856 packing Methods 0.000 description 28
- 239000000047 product Substances 0.000 description 28
- 238000010298 pulverizing process Methods 0.000 description 27
- 239000010935 stainless steel Substances 0.000 description 21
- 239000000203 mixture Substances 0.000 description 20
- 238000010079 rubber tapping Methods 0.000 description 20
- 239000001301 oxygen Substances 0.000 description 19
- 229910052760 oxygen Inorganic materials 0.000 description 19
- 229910001220 stainless steel Inorganic materials 0.000 description 19
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 18
- 238000007796 conventional method Methods 0.000 description 18
- 229910052742 iron Inorganic materials 0.000 description 18
- 238000000465 moulding Methods 0.000 description 16
- 238000005192 partition Methods 0.000 description 16
- 238000003825 pressing Methods 0.000 description 15
- 238000009694 cold isostatic pressing Methods 0.000 description 14
- 239000001257 hydrogen Substances 0.000 description 13
- 229910052739 hydrogen Inorganic materials 0.000 description 13
- 229910000889 permalloy Inorganic materials 0.000 description 13
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 12
- 238000000748 compression moulding Methods 0.000 description 12
- 230000000694 effects Effects 0.000 description 12
- 230000007423 decrease Effects 0.000 description 11
- 229920001971 elastomer Polymers 0.000 description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 10
- 229910052582 BN Inorganic materials 0.000 description 10
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical group N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 10
- 238000000576 coating method Methods 0.000 description 10
- 238000007906 compression Methods 0.000 description 10
- NUKZAGXMHTUAFE-UHFFFAOYSA-N methyl hexanoate Chemical compound CCCCCC(=O)OC NUKZAGXMHTUAFE-UHFFFAOYSA-N 0.000 description 10
- 239000011230 binding agent Substances 0.000 description 9
- 239000011248 coating agent Substances 0.000 description 9
- 230000006835 compression Effects 0.000 description 9
- 230000003647 oxidation Effects 0.000 description 9
- 238000007254 oxidation reaction Methods 0.000 description 9
- 229910000859 α-Fe Inorganic materials 0.000 description 9
- 229910052799 carbon Inorganic materials 0.000 description 8
- 239000013078 crystal Substances 0.000 description 8
- 230000004907 flux Effects 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- 239000003921 oil Substances 0.000 description 8
- 235000019198 oils Nutrition 0.000 description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 7
- 229910052779 Neodymium Inorganic materials 0.000 description 7
- 238000005266 casting Methods 0.000 description 7
- 238000005238 degreasing Methods 0.000 description 7
- 239000012535 impurity Substances 0.000 description 6
- 238000007721 mold pressing method Methods 0.000 description 6
- 229910052757 nitrogen Inorganic materials 0.000 description 6
- 239000012071 phase Substances 0.000 description 6
- 238000004663 powder metallurgy Methods 0.000 description 6
- 230000002829 reductive effect Effects 0.000 description 6
- 230000007547 defect Effects 0.000 description 5
- 238000004880 explosion Methods 0.000 description 5
- 238000002844 melting Methods 0.000 description 5
- 230000008018 melting Effects 0.000 description 5
- JGHZJRVDZXSNKQ-UHFFFAOYSA-N methyl octanoate Chemical compound CCCCCCCC(=O)OC JGHZJRVDZXSNKQ-UHFFFAOYSA-N 0.000 description 5
- 229910052750 molybdenum Inorganic materials 0.000 description 5
- 239000000654 additive Substances 0.000 description 4
- 229910052796 boron Inorganic materials 0.000 description 4
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 229910000765 intermetallic Inorganic materials 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 230000003068 static effect Effects 0.000 description 4
- 229910052718 tin Inorganic materials 0.000 description 4
- 229910052721 tungsten Inorganic materials 0.000 description 4
- 229910052720 vanadium Inorganic materials 0.000 description 4
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 3
- 229910052772 Samarium Inorganic materials 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 229910017052 cobalt Inorganic materials 0.000 description 3
- 239000010941 cobalt Substances 0.000 description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000005336 cracking Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
- 230000005347 demagnetization Effects 0.000 description 3
- 238000007723 die pressing method Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000010902 jet-milling Methods 0.000 description 3
- 229910001004 magnetic alloy Inorganic materials 0.000 description 3
- 229910052748 manganese Inorganic materials 0.000 description 3
- 239000002480 mineral oil Substances 0.000 description 3
- 235000010446 mineral oil Nutrition 0.000 description 3
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 238000010791 quenching Methods 0.000 description 3
- 230000000171 quenching effect Effects 0.000 description 3
- 238000006467 substitution reaction Methods 0.000 description 3
- 238000005303 weighing Methods 0.000 description 3
- 229910052726 zirconium Inorganic materials 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 229910052684 Cerium Inorganic materials 0.000 description 2
- 229910052688 Gadolinium Inorganic materials 0.000 description 2
- FLIACVVOZYBSBS-UHFFFAOYSA-N Methyl palmitate Chemical compound CCCCCCCCCCCCCCCC(=O)OC FLIACVVOZYBSBS-UHFFFAOYSA-N 0.000 description 2
- HPEUJPJOZXNMSJ-UHFFFAOYSA-N Methyl stearate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OC HPEUJPJOZXNMSJ-UHFFFAOYSA-N 0.000 description 2
- 229910052777 Praseodymium Inorganic materials 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 230000000573 anti-seizure effect Effects 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 238000000280 densification Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000010408 film Substances 0.000 description 2
- 229910052733 gallium Inorganic materials 0.000 description 2
- 229910052735 hafnium Inorganic materials 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 238000007733 ion plating Methods 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 229910052746 lanthanum Inorganic materials 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000000691 measurement method Methods 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
- 229910052759 nickel Inorganic materials 0.000 description 2
- 229910052758 niobium Inorganic materials 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 229910000938 samarium–cobalt magnet Inorganic materials 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- 229910001256 stainless steel alloy Inorganic materials 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910052727 yttrium Inorganic materials 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
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 208000031872 Body Remains Diseases 0.000 description 1
- 241000533845 Enterolobium cyclocarpum Species 0.000 description 1
- 229910052693 Europium Inorganic materials 0.000 description 1
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- 229910052689 Holmium Inorganic materials 0.000 description 1
- 229910052765 Lutetium Inorganic materials 0.000 description 1
- 239000005640 Methyl decanoate Substances 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910052775 Thulium Inorganic materials 0.000 description 1
- 229910010055 TiB Inorganic materials 0.000 description 1
- 229910034327 TiC Inorganic materials 0.000 description 1
- 229910052769 Ytterbium Inorganic materials 0.000 description 1
- GEIAQOFPUVMAGM-UHFFFAOYSA-N ZrO Inorganic materials [Zr]=O GEIAQOFPUVMAGM-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000032683 aging 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
- 238000013459 approach Methods 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000037237 body shape Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 238000001739 density measurement Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 208000035475 disorder Diseases 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- KBQHZAAAGSGFKK-UHFFFAOYSA-N dysprosium atom Chemical group [Dy] KBQHZAAAGSGFKK-UHFFFAOYSA-N 0.000 description 1
- CAMHHLOGFDZBBG-UHFFFAOYSA-N epoxidized methyl oleate Natural products CCCCCCCCC1OC1CCCCCCCC(=O)OC CAMHHLOGFDZBBG-UHFFFAOYSA-N 0.000 description 1
- 238000009501 film coating Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 239000012770 industrial material Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000000462 isostatic pressing Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000006247 magnetic powder Substances 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 150000004671 saturated fatty acids Chemical class 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 229910000601 superalloy Inorganic materials 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GZCRRIHWUXGPOV-UHFFFAOYSA-N terbium atom Chemical compound [Tb] GZCRRIHWUXGPOV-UHFFFAOYSA-N 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Hard Magnetic Materials (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
- Powder Metallurgy (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005322921A JP4391980B2 (ja) | 2005-11-07 | 2005-11-07 | 磁気異方性希土類焼結磁石の製造方法及び製造装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005322921A JP4391980B2 (ja) | 2005-11-07 | 2005-11-07 | 磁気異方性希土類焼結磁石の製造方法及び製造装置 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2008201031A Division JP4819104B2 (ja) | 2008-08-04 | 2008-08-04 | 磁気異方性希土類焼結磁石の製造方法及び製造装置 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2007134353A JP2007134353A (ja) | 2007-05-31 |
| JP2007134353A5 JP2007134353A5 (enExample) | 2007-07-26 |
| JP4391980B2 true JP4391980B2 (ja) | 2009-12-24 |
Family
ID=38155797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2005322921A Expired - Fee Related JP4391980B2 (ja) | 2005-11-07 | 2005-11-07 | 磁気異方性希土類焼結磁石の製造方法及び製造装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4391980B2 (enExample) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014174935A1 (ja) * | 2013-04-24 | 2014-10-30 | インターメタリックス株式会社 | 焼結磁石製造用モールド、及びそれを用いた焼結磁石製造方法 |
| WO2016047593A1 (ja) | 2014-09-28 | 2016-03-31 | Ndfeb株式会社 | 希土類焼結磁石の製造方法及び当該製法にて使用される製造装置 |
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5322026B2 (ja) * | 2008-01-29 | 2013-10-23 | Tdk株式会社 | 希土類焼結磁石の製造方法 |
| JP2008294468A (ja) * | 2008-08-04 | 2008-12-04 | Inter Metallics Kk | NdFeB系磁石の製造方法 |
| EP2348518B1 (en) * | 2008-11-06 | 2016-08-24 | Intermetallics Co., Ltd. | Method for producing sintered rare earth magnet |
| JP2010219499A (ja) * | 2009-02-18 | 2010-09-30 | Tdk Corp | R−t−b系希土類焼結磁石及びその製造方法 |
| JP5359513B2 (ja) * | 2009-04-23 | 2013-12-04 | 日立金属株式会社 | R−tm−b系ラジアル異方性リング磁石の製造方法 |
| WO2011024936A1 (ja) * | 2009-08-28 | 2011-03-03 | インターメタリックス株式会社 | NdFeB系焼結磁石の製造方法、製造装置、及び該製造方法によって製造されるNdFeB系焼結磁石 |
| JP5218869B2 (ja) * | 2011-05-24 | 2013-06-26 | 住友電気工業株式会社 | 希土類−鉄−窒素系合金材、希土類−鉄−窒素系合金材の製造方法、希土類−鉄系合金材、及び希土類−鉄系合金材の製造方法 |
| JP2013062482A (ja) * | 2011-08-22 | 2013-04-04 | Sumitomo Electric Ind Ltd | 磁石用圧粉成形体の製造方法、磁石用圧粉成形体、及び焼結体 |
| JP2013110225A (ja) * | 2011-11-18 | 2013-06-06 | Sumitomo Electric Ind Ltd | 磁性部材及びその製造方法 |
| JP6271425B2 (ja) * | 2012-07-24 | 2018-01-31 | インターメタリックス株式会社 | NdFeB系焼結磁石の製造方法 |
| CN103990805B (zh) * | 2014-05-11 | 2016-06-22 | 沈阳中北通磁科技股份有限公司 | 一种钕铁硼稀土永磁合金的制粉方法和设备 |
| JP6337616B2 (ja) * | 2014-05-28 | 2018-06-06 | 大同特殊鋼株式会社 | 焼結磁石製造用モールド及び焼結磁石製造方法 |
| CN105513737A (zh) | 2016-01-21 | 2016-04-20 | 烟台首钢磁性材料股份有限公司 | 一种不含重稀土元素烧结钕铁硼磁体的制备方法 |
| WO2018038170A1 (ja) * | 2016-08-26 | 2018-03-01 | Ndfeb株式会社 | 希土類焼結磁石とその製造方法 |
| JP7255514B2 (ja) * | 2020-02-19 | 2023-04-11 | 株式会社豊田中央研究所 | 希土類磁石粉末の製造方法 |
| CN112053843B (zh) * | 2020-08-17 | 2022-04-29 | 包头韵升强磁材料有限公司 | 一种大尺寸烧结钕铁硼坯料的成型模压方法 |
| CN112164572B (zh) * | 2020-09-01 | 2022-07-22 | 安徽省瀚海新材料股份有限公司 | 一种钕铁硼产品的压制成型工艺 |
| JP7576862B2 (ja) * | 2021-01-26 | 2024-11-01 | Ndfeb株式会社 | Nd-Fe-B積層焼結磁石およびその製造方法 |
| CN113145845B (zh) * | 2021-03-04 | 2023-11-07 | 上海平野磁气有限公司 | 一种全自动无压力磁粉成型机及磁粉成型料胚的制造方法 |
| JP7574736B2 (ja) * | 2021-05-12 | 2024-10-29 | 信越化学工業株式会社 | 希土類焼結磁石及び希土類焼結磁石の製造方法 |
| JP7779042B2 (ja) * | 2021-08-23 | 2025-12-03 | 大同特殊鋼株式会社 | 周配向断面円弧状、ラジアル配向断面円弧状、または集中配向断面矩形の板磁石、ならびにその製造方法 |
| CN114800583B (zh) * | 2022-04-18 | 2023-09-26 | 浙江大学 | 一种两相驱动柔性手爪 |
| CN116884756B (zh) * | 2023-07-05 | 2025-10-24 | 瑞声开泰科技(马鞍山)有限公司 | 薄型异形磁钢的制备方法 |
-
2005
- 2005-11-07 JP JP2005322921A patent/JP4391980B2/ja not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014174935A1 (ja) * | 2013-04-24 | 2014-10-30 | インターメタリックス株式会社 | 焼結磁石製造用モールド、及びそれを用いた焼結磁石製造方法 |
| JPWO2014174935A1 (ja) * | 2013-04-24 | 2017-02-23 | インターメタリックス株式会社 | 焼結磁石製造用モールド、及びそれを用いた焼結磁石製造方法 |
| WO2016047593A1 (ja) | 2014-09-28 | 2016-03-31 | Ndfeb株式会社 | 希土類焼結磁石の製造方法及び当該製法にて使用される製造装置 |
| KR20170033218A (ko) | 2014-09-28 | 2017-03-24 | 엔디에프이비 코포레이션 | 희토류 소결자석의 제조방법 및 해당 제법에 사용되는 제조장치 |
| US10629345B2 (en) | 2014-09-28 | 2020-04-21 | Ndfeb Corporation | Production method of rare earth sintered magnet and production device used in the production method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2007134353A (ja) | 2007-05-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4391980B2 (ja) | 磁気異方性希土類焼結磁石の製造方法及び製造装置 | |
| JP4391897B2 (ja) | 磁気異方性希土類焼結磁石の製造方法及び製造装置 | |
| JP4819104B2 (ja) | 磁気異方性希土類焼結磁石の製造方法及び製造装置 | |
| US8287661B2 (en) | Method for producing R-T-B sintered magnet | |
| JP5598465B2 (ja) | R−t−b−m系焼結磁石用合金及びその製造方法 | |
| JP4819103B2 (ja) | 磁気異方性希土類焼結磁石の製造方法及び製造装置 | |
| WO2017033266A1 (ja) | 磁石粒子およびそれを用いた磁石成形体 | |
| JP2012079726A (ja) | R−t−b−m系焼結磁石用合金の製造方法およびr−t−b−m系焼結磁石の製造方法 | |
| JP2005209932A (ja) | 希土類磁石及びその製造方法、製造装置 | |
| JPH08167515A (ja) | R−Fe−B系永久磁石材料の製造方法 | |
| JP2006265601A (ja) | 希土類磁石焼結用容器及びそれを用いた希土類磁石の製造方法 | |
| JP2007266038A (ja) | 希土類永久磁石の製造方法 | |
| JPWO2018038170A1 (ja) | 希土類焼結磁石とその製造方法 | |
| JP2005197299A (ja) | 希土類焼結磁石及びその製造方法 | |
| JP2005197301A (ja) | 希土類焼結磁石及びその製造方法 | |
| Koper et al. | Improving the properties of permanent magnets: a study of patents, patent applications and other literature | |
| JP2005213544A (ja) | 磁場中成形方法及び希土類焼結磁石の製造方法 | |
| JP2005197300A (ja) | 希土類焼結磁石及びその製造方法 | |
| JP4662046B2 (ja) | 希土類焼結磁石の製造方法 | |
| JP4561432B2 (ja) | R−t−b系焼結磁石の製造方法 | |
| JP2005209838A (ja) | 希土類焼結磁石の製造方法及び製造装置 | |
| JP2005344165A (ja) | 希土類焼結磁石の製造方法、熱処理方法 | |
| JP2022155355A (ja) | R-t-b系永久磁石用合金およびr-t-b系永久磁石の製造方法 | |
| JP2005197298A (ja) | 希土類焼結磁石及びその製造方法 | |
| JP2005206909A (ja) | 磁場中成形方法及び希土類焼結磁石の製造方法 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20070607 |
|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20070607 |
|
| A871 | Explanation of circumstances concerning accelerated examination |
Free format text: JAPANESE INTERMEDIATE CODE: A871 Effective date: 20070611 |
|
| A975 | Report on accelerated examination |
Free format text: JAPANESE INTERMEDIATE CODE: A971005 Effective date: 20071009 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20071120 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20080118 |
|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20080603 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20080731 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20080804 |
|
| RD03 | Notification of appointment of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7423 Effective date: 20080924 |
|
| A911 | Transfer of reconsideration by examiner before appeal (zenchi) |
Free format text: JAPANESE INTERMEDIATE CODE: A911 Effective date: 20081028 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20090728 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20090730 |
|
| RD02 | Notification of acceptance of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7422 Effective date: 20090730 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20090908 |
|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20091008 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20121016 Year of fee payment: 3 |
|
| R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20121016 Year of fee payment: 3 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20131016 Year of fee payment: 4 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |