TWI374462B - - Google Patents
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- TWI374462B TWI374462B TW100111109A TW100111109A TWI374462B TW I374462 B TWI374462 B TW I374462B TW 100111109 A TW100111109 A TW 100111109A TW 100111109 A TW100111109 A TW 100111109A TW I374462 B TWI374462 B TW I374462B
- Authority
- TW
- Taiwan
- Prior art keywords
- magnet
- permanent magnet
- sintering
- organometallic compound
- powder
- Prior art date
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- 238000005245 sintering Methods 0.000 claims description 111
- 239000002245 particle Substances 0.000 claims description 92
- 239000000843 powder Substances 0.000 claims description 80
- 150000002902 organometallic compounds Chemical class 0.000 claims description 76
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 47
- 229910052799 carbon Inorganic materials 0.000 claims description 47
- 238000004519 manufacturing process Methods 0.000 claims description 44
- 229910052751 metal Inorganic materials 0.000 claims description 31
- 239000002184 metal Substances 0.000 claims description 31
- 229910052715 tantalum Inorganic materials 0.000 claims description 22
- 229910052726 zirconium Inorganic materials 0.000 claims description 22
- 229910052719 titanium Inorganic materials 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 17
- 125000000217 alkyl group Chemical group 0.000 claims description 15
- 229910052758 niobium Inorganic materials 0.000 claims description 15
- 229910052750 molybdenum Inorganic materials 0.000 claims description 14
- 229910052721 tungsten Inorganic materials 0.000 claims description 13
- 239000002994 raw material Substances 0.000 claims description 11
- 229910052720 vanadium Inorganic materials 0.000 claims description 11
- 125000004432 carbon atom Chemical group C* 0.000 claims description 8
- 238000010298 pulverizing process Methods 0.000 claims description 5
- 229910052747 lanthanoid Inorganic materials 0.000 claims description 3
- 150000002602 lanthanoids Chemical class 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 230000004313 glare Effects 0.000 claims 1
- 230000005291 magnetic effect Effects 0.000 description 54
- 239000012071 phase Substances 0.000 description 47
- 239000001257 hydrogen Substances 0.000 description 43
- 229910052739 hydrogen Inorganic materials 0.000 description 43
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 38
- 239000013078 crystal Substances 0.000 description 37
- 238000001354 calcination Methods 0.000 description 35
- 230000000052 comparative effect Effects 0.000 description 29
- 239000007789 gas Substances 0.000 description 26
- 239000010936 titanium Substances 0.000 description 20
- 150000001875 compounds Chemical class 0.000 description 17
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 16
- 230000004907 flux Effects 0.000 description 16
- 239000001301 oxygen Substances 0.000 description 16
- 229910052760 oxygen Inorganic materials 0.000 description 16
- 238000002844 melting Methods 0.000 description 13
- 230000008018 melting Effects 0.000 description 13
- 230000000694 effects Effects 0.000 description 11
- 230000003993 interaction Effects 0.000 description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- 230000005415 magnetization Effects 0.000 description 10
- 150000002736 metal compounds Chemical class 0.000 description 10
- 125000001424 substituent group Chemical group 0.000 description 10
- 238000005979 thermal decomposition reaction Methods 0.000 description 10
- 229930195733 hydrocarbon Natural products 0.000 description 9
- 238000000465 moulding Methods 0.000 description 9
- 238000006356 dehydrogenation reaction Methods 0.000 description 8
- 238000009826 distribution Methods 0.000 description 8
- 238000010304 firing Methods 0.000 description 8
- 150000002430 hydrocarbons Chemical class 0.000 description 8
- 239000002002 slurry Substances 0.000 description 8
- 239000004215 Carbon black (E152) Substances 0.000 description 7
- 230000007423 decrease Effects 0.000 description 7
- 238000000921 elemental analysis Methods 0.000 description 7
- 239000000203 mixture Substances 0.000 description 7
- 150000004703 alkoxides Chemical class 0.000 description 6
- -1 methanol oxime Chemical class 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 238000005520 cutting process Methods 0.000 description 5
- 230000003247 decreasing effect Effects 0.000 description 5
- 239000003966 growth inhibitor Substances 0.000 description 5
- 150000002431 hydrogen Chemical class 0.000 description 5
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 238000005261 decarburization Methods 0.000 description 4
- ZSIAUFGUXNUGDI-UHFFFAOYSA-N hexan-1-ol Chemical compound CCCCCCO ZSIAUFGUXNUGDI-UHFFFAOYSA-N 0.000 description 4
- 229910000765 intermetallic Inorganic materials 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 3
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 3
- 101100080844 Neurospora crassa (strain ATCC 24698 / 74-OR23-1A / CBS 708.71 / DSM 1257 / FGSC 987) ndh-3 gene Proteins 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 229910001873 dinitrogen Inorganic materials 0.000 description 3
- 239000011261 inert gas Substances 0.000 description 3
- AZQWKYJCGOJGHM-UHFFFAOYSA-N 1,4-benzoquinone Chemical compound O=C1C=CC(=O)C=C1 AZQWKYJCGOJGHM-UHFFFAOYSA-N 0.000 description 2
- FIPWRIJSWJWJAI-UHFFFAOYSA-N Butyl carbitol 6-propylpiperonyl ether Chemical compound C1=C(CCC)C(COCCOCCOCCCC)=CC2=C1OCO2 FIPWRIJSWJWJAI-UHFFFAOYSA-N 0.000 description 2
- MJXUFBUYCLOLBZ-UHFFFAOYSA-N C(C)(=N)N.CC(=O)C Chemical compound C(C)(=N)N.CC(=O)C MJXUFBUYCLOLBZ-UHFFFAOYSA-N 0.000 description 2
- 101100294913 Neurospora crassa (strain ATCC 24698 / 74-OR23-1A / CBS 708.71 / DSM 1257 / FGSC 987) ndh-2 gene Proteins 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- WYKVRFMTWIPDPJ-UHFFFAOYSA-N cerium(3+) ethanolate Chemical compound [Ce+3].CC[O-].CC[O-].CC[O-] WYKVRFMTWIPDPJ-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- HHFAWKCIHAUFRX-UHFFFAOYSA-N ethoxide Chemical compound CC[O-] HHFAWKCIHAUFRX-UHFFFAOYSA-N 0.000 description 2
- 230000005294 ferromagnetic effect Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000005923 long-lasting effect Effects 0.000 description 2
- 230000005381 magnetic domain Effects 0.000 description 2
- 150000001247 metal acetylides Chemical class 0.000 description 2
- OKKJLVBELUTLKV-UHFFFAOYSA-N methanol Natural products OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 2
- NBTOZLQBSIZIKS-UHFFFAOYSA-N methoxide Chemical compound [O-]C NBTOZLQBSIZIKS-UHFFFAOYSA-N 0.000 description 2
- 229910001172 neodymium magnet Inorganic materials 0.000 description 2
- 150000002923 oximes Chemical class 0.000 description 2
- 229960005235 piperonyl butoxide Drugs 0.000 description 2
- OGHBATFHNDZKSO-UHFFFAOYSA-N propan-2-olate Chemical compound CC(C)[O-] OGHBATFHNDZKSO-UHFFFAOYSA-N 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000005211 surface analysis Methods 0.000 description 2
- 238000001291 vacuum drying Methods 0.000 description 2
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 1
- 229910052692 Dysprosium Inorganic materials 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 229910052779 Neodymium Inorganic materials 0.000 description 1
- 206010036790 Productive cough Diseases 0.000 description 1
- 229910052771 Terbium Inorganic materials 0.000 description 1
- YXVOGOMWPQXYGF-UHFFFAOYSA-N acetic acid;hydrazine;hydrate Chemical compound O.NN.CC(O)=O YXVOGOMWPQXYGF-UHFFFAOYSA-N 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical group [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- AGOOZWPRMAWZIZ-UHFFFAOYSA-K bismuth;hexanoate Chemical compound [Bi+3].CCCCCC([O-])=O.CCCCCC([O-])=O.CCCCCC([O-])=O AGOOZWPRMAWZIZ-UHFFFAOYSA-K 0.000 description 1
- QFUWHTBCUVMAMS-UHFFFAOYSA-N butan-1-olate cerium(3+) Chemical compound [Ce+3].CCCC[O-].CCCC[O-].CCCC[O-] QFUWHTBCUVMAMS-UHFFFAOYSA-N 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- RWNYMAMNFCOIMH-UHFFFAOYSA-N cerium(3+) propan-1-olate Chemical compound [Ce+3].CCC[O-].CCC[O-].CCC[O-] RWNYMAMNFCOIMH-UHFFFAOYSA-N 0.000 description 1
- XDPCFUNJJWMBFH-UHFFFAOYSA-N cesium;ethanolate Chemical compound [Cs+].CC[O-] XDPCFUNJJWMBFH-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 229940126214 compound 3 Drugs 0.000 description 1
- 239000007771 core particle Substances 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 150000004683 dihydrates Chemical class 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- NCDCLPBOMHPFCV-UHFFFAOYSA-N hexyl hexanoate Chemical compound CCCCCCOC(=O)CCCCC NCDCLPBOMHPFCV-UHFFFAOYSA-N 0.000 description 1
- 125000001183 hydrocarbyl group Chemical group 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000011859 microparticle Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- QBGAUYNVSUJLTH-UHFFFAOYSA-N n-(1,1,1-trifluoropropan-2-ylidene)hydroxylamine Chemical compound ON=C(C)C(F)(F)F QBGAUYNVSUJLTH-UHFFFAOYSA-N 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 125000000962 organic group Chemical group 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000004382 potting Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 210000003802 sputum Anatomy 0.000 description 1
- 208000024794 sputum Diseases 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052716 thallium Inorganic materials 0.000 description 1
- KNPRLIQQQKEOJN-UHFFFAOYSA-N tri(propan-2-yloxy)bismuthane Chemical compound [Bi+3].CC(C)[O-].CC(C)[O-].CC(C)[O-] KNPRLIQQQKEOJN-UHFFFAOYSA-N 0.000 description 1
- CPWJKGIJFGMVPL-UHFFFAOYSA-K tricesium;phosphate Chemical compound [Cs+].[Cs+].[Cs+].[O-]P([O-])([O-])=O CPWJKGIJFGMVPL-UHFFFAOYSA-K 0.000 description 1
- AHZJKOKFZJYCLG-UHFFFAOYSA-K trifluoromethanesulfonate;ytterbium(3+) Chemical compound [Yb+3].[O-]S(=O)(=O)C(F)(F)F.[O-]S(=O)(=O)C(F)(F)F.[O-]S(=O)(=O)C(F)(F)F AHZJKOKFZJYCLG-UHFFFAOYSA-K 0.000 description 1
- 150000004684 trihydrates Chemical class 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
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 238000010947 wet-dispersion method Methods 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/16—Metallic particles coated with a non-metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/12—Both compacting and sintering
- B22F3/14—Both compacting and sintering simultaneously
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/02—Making ferrous alloys by powder metallurgy
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/02—Making ferrous alloys by powder metallurgy
- C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
- C22C33/0278—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5%
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
-
- 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
- H01F1/0572—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 with a protective layer
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- 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
- H01F1/06—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 in the form of particles, e.g. powder
- H01F1/08—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 in the form of particles, e.g. powder pressed, sintered, or bound together
-
- 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
- H01F1/06—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 in the form of particles, e.g. powder
- H01F1/08—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 in the form of particles, e.g. powder pressed, sintered, or bound together
- H01F1/086—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 in the form of particles, e.g. powder pressed, sintered, or bound together sintered
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/0253—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets
- H01F41/0266—Moulding; Pressing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
- B22F2998/10—Processes characterised by the sequence of their steps
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
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- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/0253—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets
- H01F41/0293—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets diffusion of rare earth elements, e.g. Tb, Dy or Ho, into permanent magnets
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Crystallography & Structural Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Powder Metallurgy (AREA)
- Hard Magnetic Materials (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010081963 | 2010-03-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW201212065A TW201212065A (en) | 2012-03-16 |
| TWI374462B true TWI374462B (enExample) | 2012-10-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW100111109A TW201212065A (en) | 2010-03-31 | 2011-03-30 | Permanent magnet and manufacturing method for permanent magnet |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US8491728B2 (enExample) |
| EP (1) | EP2503570B1 (enExample) |
| JP (1) | JP4923148B2 (enExample) |
| KR (1) | KR101189856B1 (enExample) |
| CN (1) | CN102511071B (enExample) |
| TW (1) | TW201212065A (enExample) |
| WO (1) | WO2011125589A1 (enExample) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2503562B1 (en) * | 2010-03-31 | 2014-07-02 | Nitto Denko Corporation | Manufacturing method for permanent magnet |
| JP4923151B2 (ja) * | 2010-03-31 | 2012-04-25 | 日東電工株式会社 | 永久磁石及び永久磁石の製造方法 |
| KR101189936B1 (ko) * | 2010-03-31 | 2012-10-12 | 닛토덴코 가부시키가이샤 | 영구 자석 및 영구 자석의 제조 방법 |
| KR101189856B1 (ko) * | 2010-03-31 | 2012-10-10 | 닛토덴코 가부시키가이샤 | 영구 자석 및 영구 자석의 제조 방법 |
| WO2011125595A1 (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 |
| JP5011420B2 (ja) * | 2010-05-14 | 2012-08-29 | 日東電工株式会社 | 永久磁石及び永久磁石の製造方法 |
| JP5908247B2 (ja) * | 2011-09-30 | 2016-04-26 | 日東電工株式会社 | 永久磁石の製造方法 |
| CN104674115A (zh) | 2013-11-27 | 2015-06-03 | 厦门钨业股份有限公司 | 一种低b的稀土磁铁 |
| CN104952574A (zh) * | 2014-03-31 | 2015-09-30 | 厦门钨业股份有限公司 | 一种含W的Nd-Fe-B-Cu系烧结磁铁 |
| KR101719871B1 (ko) * | 2014-07-14 | 2017-03-24 | 한양대학교 산학협력단 | 중희토류 원소를 포함하지 않는 R-Fe-B계 소결자석 및 이의 제조방법 |
| KR20190066492A (ko) | 2017-12-05 | 2019-06-13 | 권상철 | 함초를 이용하여 흙냄새와 나트륨을 낮춘 민물매운탕 시즈닝 및 그 제조방법 |
Family Cites Families (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3298219B2 (ja) | 1993-03-17 | 2002-07-02 | 日立金属株式会社 | 希土類―Ｆｅ−Ｃｏ−Ａｌ−Ｖ−Ｇａ−Ｂ系焼結磁石 |
| US5641363A (en) * | 1993-12-27 | 1997-06-24 | Tdk Corporation | Sintered magnet and method for making |
| JP3396323B2 (ja) * | 1994-02-07 | 2003-04-14 | 三菱電機株式会社 | 高抵抗化合物半導体層とその結晶成長法，及び該高抵抗化合物半導体層を用いた半導体装置 |
| JPH07240331A (ja) * | 1994-03-01 | 1995-09-12 | Hitachi Metals Ltd | 希土類金属間化合物磁石の製造方法 |
| JPH07263265A (ja) * | 1994-03-18 | 1995-10-13 | Hitachi Metals Ltd | 希土類金属間化合物永久磁石およびその製造方法 |
| WO2001091139A1 (en) * | 2000-05-24 | 2001-11-29 | Sumitomo Special Metals Co., Ltd. | Permanent magnet including multiple ferromagnetic phases and method for producing the magnet |
| JP2004250781A (ja) | 2002-10-08 | 2004-09-09 | Neomax Co Ltd | 焼結型永久磁石およびその製造方法 |
| CN1303623C (zh) * | 2002-10-17 | 2007-03-07 | 株式会社新王磁材 | 纳米复合磁体及制备该磁体的方法 |
| US7199690B2 (en) * | 2003-03-27 | 2007-04-03 | Tdk Corporation | R-T-B system rare earth permanent magnet |
| JP4525072B2 (ja) | 2003-12-22 | 2010-08-18 | 日産自動車株式会社 | 希土類磁石およびその製造方法 |
| JP2005203555A (ja) * | 2004-01-15 | 2005-07-28 | Neomax Co Ltd | 焼結磁石の製造方法 |
| US9551052B2 (en) * | 2005-07-15 | 2017-01-24 | Hitachi Metals, Ltd. | Rare earth sintered magnet and method for production thereof |
| WO2008139556A1 (ja) * | 2007-05-02 | 2008-11-20 | Hitachi Metals, Ltd. | Ｒ－ｔ－ｂ系焼結磁石 |
| 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 |
| JP5057111B2 (ja) * | 2009-07-01 | 2012-10-24 | 信越化学工業株式会社 | 希土類磁石の製造方法 |
| JP4923151B2 (ja) * | 2010-03-31 | 2012-04-25 | 日東電工株式会社 | 永久磁石及び永久磁石の製造方法 |
| EP2503562B1 (en) * | 2010-03-31 | 2014-07-02 | Nitto Denko Corporation | Manufacturing method for permanent magnet |
| JP4865100B2 (ja) * | 2010-03-31 | 2012-02-01 | 日東電工株式会社 | 永久磁石及び永久磁石の製造方法 |
| KR101189936B1 (ko) * | 2010-03-31 | 2012-10-12 | 닛토덴코 가부시키가이샤 | 영구 자석 및 영구 자석의 제조 방법 |
| WO2011125595A1 (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 |
| KR101189856B1 (ko) * | 2010-03-31 | 2012-10-10 | 닛토덴코 가부시키가이샤 | 영구 자석 및 영구 자석의 제조 방법 |
-
2011
- 2011-03-28 KR KR1020127007199A patent/KR101189856B1/ko not_active Expired - Fee Related
- 2011-03-28 CN CN2011800039595A patent/CN102511071B/zh not_active Expired - Fee Related
- 2011-03-28 EP EP11765489.7A patent/EP2503570B1/en not_active Not-in-force
- 2011-03-28 WO PCT/JP2011/057570 patent/WO2011125589A1/ja not_active Ceased
- 2011-03-28 JP JP2011069064A patent/JP4923148B2/ja not_active Expired - Fee Related
- 2011-03-28 US US13/499,492 patent/US8491728B2/en not_active Expired - Fee Related
- 2011-03-30 TW TW100111109A patent/TW201212065A/zh not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| JP2011228656A (ja) | 2011-11-10 |
| KR20120049358A (ko) | 2012-05-16 |
| CN102511071B (zh) | 2013-04-03 |
| KR101189856B1 (ko) | 2012-10-10 |
| EP2503570A4 (en) | 2012-12-05 |
| TW201212065A (en) | 2012-03-16 |
| US8491728B2 (en) | 2013-07-23 |
| EP2503570B1 (en) | 2015-01-21 |
| WO2011125589A1 (ja) | 2011-10-13 |
| EP2503570A1 (en) | 2012-09-26 |
| JP4923148B2 (ja) | 2012-04-25 |
| CN102511071A (zh) | 2012-06-20 |
| US20120182107A1 (en) | 2012-07-19 |
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| MM4A | Annulment or lapse of patent due to non-payment of fees |