CN1076115C - 稀土－铁－硼永磁材料的制备方法 - Google Patents
稀土－铁－硼永磁材料的制备方法 Download PDFInfo
- Publication number
- CN1076115C CN1076115C CN93115008A CN93115008A CN1076115C CN 1076115 C CN1076115 C CN 1076115C CN 93115008 A CN93115008 A CN 93115008A CN 93115008 A CN93115008 A CN 93115008A CN 1076115 C CN1076115 C CN 1076115C
- Authority
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- China
- Prior art keywords
- atomic
- less
- permanent magnet
- preparing
- phase
- 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 - Lifetime
Links
- 238000000034 method Methods 0.000 title claims abstract description 109
- 239000000463 material Substances 0.000 title claims abstract description 60
- 230000008569 process Effects 0.000 title abstract description 17
- 239000000843 powder Substances 0.000 claims abstract description 256
- 230000005291 magnetic effect Effects 0.000 claims abstract description 136
- 239000000956 alloy Substances 0.000 claims abstract description 108
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 107
- 238000005266 casting Methods 0.000 claims abstract description 77
- 239000000203 mixture Substances 0.000 claims abstract description 51
- 238000003825 pressing Methods 0.000 claims abstract description 40
- 239000013078 crystal Substances 0.000 claims abstract description 26
- 238000005984 hydrogenation reaction Methods 0.000 claims abstract description 22
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 209
- 239000002245 particle Substances 0.000 claims description 48
- 229910052742 iron Inorganic materials 0.000 claims description 31
- 229910052751 metal Inorganic materials 0.000 claims description 31
- 239000002184 metal Substances 0.000 claims description 31
- 229910052796 boron Inorganic materials 0.000 claims description 30
- 230000005347 demagnetization Effects 0.000 claims description 26
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 22
- 238000006356 dehydrogenation reaction Methods 0.000 claims description 20
- 239000000696 magnetic material Substances 0.000 claims description 20
- 229910052759 nickel Inorganic materials 0.000 claims description 20
- 239000012535 impurity Substances 0.000 claims description 15
- 229910000765 intermetallic Inorganic materials 0.000 claims description 15
- 238000004519 manufacturing process Methods 0.000 claims description 14
- 238000011282 treatment Methods 0.000 claims description 14
- 230000002706 hydrostatic effect Effects 0.000 claims description 13
- 238000002156 mixing Methods 0.000 claims description 12
- 239000007789 gas Substances 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 9
- 238000012856 packing Methods 0.000 claims description 8
- 238000002360 preparation method Methods 0.000 claims description 8
- 238000002844 melting Methods 0.000 claims description 7
- 230000008018 melting Effects 0.000 claims description 7
- 239000011261 inert gas Substances 0.000 claims description 5
- 150000002910 rare earth metals Chemical class 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000003990 capacitor Substances 0.000 claims description 2
- 150000002894 organic compounds Chemical class 0.000 claims description 2
- RZJQYRCNDBMIAG-UHFFFAOYSA-N [Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Zn].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn] Chemical class [Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Zn].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn] RZJQYRCNDBMIAG-UHFFFAOYSA-N 0.000 claims 7
- 238000009749 continuous casting Methods 0.000 claims 5
- 238000000465 moulding Methods 0.000 claims 2
- 238000005096 rolling process Methods 0.000 claims 2
- 229910052718 tin Inorganic materials 0.000 claims 1
- 229910052721 tungsten Inorganic materials 0.000 claims 1
- 230000003647 oxidation Effects 0.000 abstract description 18
- 238000007254 oxidation reaction Methods 0.000 abstract description 18
- 238000010298 pulverizing process Methods 0.000 abstract description 10
- 238000009826 distribution Methods 0.000 abstract description 6
- 230000002269 spontaneous effect Effects 0.000 abstract description 6
- 230000005415 magnetization Effects 0.000 abstract description 5
- 125000004429 atom Chemical group 0.000 description 170
- 239000012071 phase Substances 0.000 description 132
- 230000000052 comparative effect Effects 0.000 description 55
- 238000006253 efflorescence Methods 0.000 description 45
- 206010037844 rash Diseases 0.000 description 44
- 238000005245 sintering Methods 0.000 description 40
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 28
- 239000001301 oxygen Substances 0.000 description 28
- 229910052760 oxygen Inorganic materials 0.000 description 28
- 229910052779 Neodymium Inorganic materials 0.000 description 20
- 229910052777 Praseodymium Inorganic materials 0.000 description 20
- 229910052692 Dysprosium Inorganic materials 0.000 description 17
- 239000007791 liquid phase Substances 0.000 description 17
- 229910000521 B alloy Inorganic materials 0.000 description 16
- 238000005516 engineering process Methods 0.000 description 16
- 238000004453 electron probe microanalysis Methods 0.000 description 15
- 229910000859 α-Fe Inorganic materials 0.000 description 15
- 238000000137 annealing Methods 0.000 description 13
- 238000006243 chemical reaction Methods 0.000 description 13
- 230000004907 flux Effects 0.000 description 12
- 238000002425 crystallisation Methods 0.000 description 11
- 230000008025 crystallization Effects 0.000 description 11
- 238000013459 approach Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 9
- 238000000354 decomposition reaction Methods 0.000 description 8
- 238000000227 grinding Methods 0.000 description 8
- 235000012054 meals Nutrition 0.000 description 8
- 239000002994 raw material Substances 0.000 description 8
- 230000009467 reduction Effects 0.000 description 8
- 238000004458 analytical method Methods 0.000 description 7
- 229910001018 Cast iron Inorganic materials 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 239000000470 constituent Substances 0.000 description 6
- 229910052802 copper Inorganic materials 0.000 description 6
- 239000010949 copper Substances 0.000 description 6
- 238000009792 diffusion process Methods 0.000 description 6
- 229910000851 Alloy steel Inorganic materials 0.000 description 5
- 238000004512 die casting Methods 0.000 description 5
- 238000013467 fragmentation Methods 0.000 description 5
- 238000006062 fragmentation reaction Methods 0.000 description 5
- 150000004678 hydrides Chemical class 0.000 description 5
- 239000001257 hydrogen Substances 0.000 description 5
- 229910052739 hydrogen Inorganic materials 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 4
- 230000005496 eutectics Effects 0.000 description 4
- 238000005204 segregation Methods 0.000 description 4
- 238000002560 therapeutic procedure Methods 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 229910000640 Fe alloy Inorganic materials 0.000 description 3
- 238000002441 X-ray diffraction Methods 0.000 description 3
- 239000011575 calcium Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 238000000748 compression moulding Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 230000005294 ferromagnetic effect Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910000714 At alloy Inorganic materials 0.000 description 1
- 229910000906 Bronze Inorganic materials 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 229910052684 Cerium Inorganic materials 0.000 description 1
- 229910000722 Didymium Inorganic materials 0.000 description 1
- 241000224487 Didymium Species 0.000 description 1
- 229910002548 FeFe Inorganic materials 0.000 description 1
- 229910052688 Gadolinium Inorganic materials 0.000 description 1
- 229910052772 Samarium Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004523 agglutinating effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 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 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000007850 degeneration Effects 0.000 description 1
- 230000002939 deleterious effect Effects 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000000462 isostatic pressing Methods 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- 229910052756 noble gas Inorganic materials 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005549 size reduction Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
- 229910052727 yttrium Inorganic materials 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
-
- 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
- H01F1/0573—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 obtained by reduction or by hydrogen decrepitation or embrittlement
-
- 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
- B22F3/02—Compacting only
-
- 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
- B22F3/02—Compacting only
- B22F3/04—Compacting only by applying fluid pressure, e.g. by cold isostatic pressing [CIP]
-
- 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
-
- 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
-
- 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
- B22F2202/00—Treatment under specific physical conditions
- B22F2202/05—Use of magnetic field
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- Hard Magnetic Materials (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
- Powder Metallurgy (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Applications Claiming Priority (15)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP192886/93 | 1993-07-06 | ||
| JP192886/1993 | 1993-07-06 | ||
| JP19288693A JP3415208B2 (ja) | 1993-07-06 | 1993-07-06 | Ｒ−Ｆｅ−Ｂ系永久磁石材料の製造方法 |
| JP5207192A JPH0745412A (ja) | 1993-07-28 | 1993-07-28 | Ｒ−Ｆｅ−Ｂ系永久磁石材料 |
| JP207190/1993 | 1993-07-28 | ||
| JP20719193A JP3151088B2 (ja) | 1993-07-28 | 1993-07-28 | Ｒ−Ｆｅ−Ｂ系永久磁石用原料粉末の製造方法及び原料粉末調整用合金粉末 |
| JP207191/1993 | 1993-07-28 | ||
| JP20719093A JP3151087B2 (ja) | 1993-07-28 | 1993-07-28 | Ｒ−Ｆｅ−Ｂ系永久磁石用原料粉末の製造方法及び原料粉末調整用合金粉末 |
| JP207190/93 | 1993-07-28 | ||
| JP207191/93 | 1993-07-28 | ||
| JP207192/93 | 1993-07-28 | ||
| JP207192/1993 | 1993-07-28 | ||
| JP21217193A JP3299000B2 (ja) | 1993-08-03 | 1993-08-03 | Ｒ−Ｆｅ−Ｂ系永久磁石用原料粉末の製造方法及び原料粉末調整用合金粉末 |
| JP212171/93 | 1993-08-03 | ||
| JP212171/1993 | 1993-08-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1114779A CN1114779A (zh) | 1996-01-10 |
| CN1076115C true CN1076115C (zh) | 2001-12-12 |
Family
ID=27529067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN93115008A Expired - Lifetime CN1076115C (zh) | 1993-07-06 | 1993-10-15 | 稀土－铁－硼永磁材料的制备方法 |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0633581B1 (enrdf_load_stackoverflow) |
| KR (1) | KR0131060B1 (enrdf_load_stackoverflow) |
| CN (1) | CN1076115C (enrdf_load_stackoverflow) |
| AT (1) | ATE165477T1 (enrdf_load_stackoverflow) |
| DE (1) | DE69318147T2 (enrdf_load_stackoverflow) |
| RU (1) | RU2113742C1 (enrdf_load_stackoverflow) |
| TW (1) | TW272293B (enrdf_load_stackoverflow) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1320565C (zh) * | 2003-11-18 | 2007-06-06 | Tdk株式会社 | 烧结磁体的制作方法以及烧结磁体用合金 |
Families Citing this family (39)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5666635A (en) * | 1994-10-07 | 1997-09-09 | Sumitomo Special Metals Co., Ltd. | Fabrication methods for R-Fe-B permanent magnets |
| US5858123A (en) * | 1995-07-12 | 1999-01-12 | Hitachi Metals, Ltd. | Rare earth permanent magnet and method for producing the same |
| US6319335B1 (en) * | 1999-02-15 | 2001-11-20 | Shin-Etsu Chemical Co., Ltd. | Quenched thin ribbon of rare earth/iron/boron-based magnet alloy |
| EP1059645B1 (en) * | 1999-06-08 | 2006-06-14 | Shin-Etsu Chemical Co., Ltd. | Thin ribbon of rare earth-based permanent magnet alloy |
| US6527874B2 (en) | 2000-07-10 | 2003-03-04 | Sumitomo Special Metals Co., Ltd. | Rare earth magnet and method for making same |
| RU2205294C2 (ru) * | 2001-04-26 | 2003-05-27 | Зинченко Сергей Васильевич | Магнитный насос |
| KR100446193B1 (ko) * | 2002-05-29 | 2004-08-30 | 주식회사 태평양금속 | 도전체 박막을 구비한 영구 자석 제조 방법 및 장치 |
| US7618497B2 (en) * | 2003-06-30 | 2009-11-17 | Tdk Corporation | R-T-B based rare earth permanent magnet and method for production thereof |
| JP4656323B2 (ja) | 2006-04-14 | 2011-03-23 | 信越化学工業株式会社 | 希土類永久磁石材料の製造方法 |
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1993
- 1993-10-14 RU RU93049098A patent/RU2113742C1/ru active
- 1993-10-14 DE DE69318147T patent/DE69318147T2/de not_active Expired - Lifetime
- 1993-10-14 AT AT93308184T patent/ATE165477T1/de active
- 1993-10-14 EP EP93308184A patent/EP0633581B1/en not_active Expired - Lifetime
- 1993-10-15 KR KR93021615A patent/KR0131060B1/ko not_active Expired - Lifetime
- 1993-10-15 CN CN93115008A patent/CN1076115C/zh not_active Expired - Lifetime
- 1993-10-15 TW TW082108554A patent/TW272293B/zh not_active IP Right Cessation
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| EP0101552A2 (en) * | 1982-08-21 | 1984-02-29 | Sumitomo Special Metals Co., Ltd. | Magnetic materials, permanent magnets and methods of making those |
| CN1057922A (zh) * | 1986-08-04 | 1992-01-15 | 住友特殊金属株式会社 | 具有优异耐蚀性的稀土永磁体 |
| EP0517179A1 (en) * | 1991-06-04 | 1992-12-09 | Shin-Etsu Chemical Co., Ltd. | Method of making two phase Rare Earth permanent magnets |
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| CN1320565C (zh) * | 2003-11-18 | 2007-06-06 | Tdk株式会社 | 烧结磁体的制作方法以及烧结磁体用合金 |
Also Published As
| Publication number | Publication date |
|---|---|
| ATE165477T1 (de) | 1998-05-15 |
| KR0131060B1 (en) | 1998-04-24 |
| DE69318147T2 (de) | 1998-11-12 |
| KR950004295A (ko) | 1995-02-17 |
| DE69318147D1 (de) | 1998-05-28 |
| TW272293B (enrdf_load_stackoverflow) | 1996-03-11 |
| RU2113742C1 (ru) | 1998-06-20 |
| CN1114779A (zh) | 1996-01-10 |
| EP0633581B1 (en) | 1998-04-22 |
| EP0633581A1 (en) | 1995-01-11 |
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