CN1353206A - 稀土磁铁及其制造方法 - Google Patents
稀土磁铁及其制造方法 Download PDFInfo
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- CN1353206A CN1353206A CN01134650A CN01134650A CN1353206A CN 1353206 A CN1353206 A CN 1353206A CN 01134650 A CN01134650 A CN 01134650A CN 01134650 A CN01134650 A CN 01134650A CN 1353206 A CN1353206 A CN 1353206A
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- Prior art keywords
- particle diameter
- alloy
- rare
- powder
- earth magnet
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- 229910052761 rare earth metal Inorganic materials 0.000 title claims abstract description 78
- 150000002910 rare earth metals Chemical class 0.000 title claims abstract description 68
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 239000002245 particle Substances 0.000 claims abstract description 233
- 239000000956 alloy Substances 0.000 claims abstract description 167
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 166
- 239000000843 powder Substances 0.000 claims abstract description 155
- 238000010298 pulverizing process Methods 0.000 claims abstract description 36
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 31
- 239000001257 hydrogen Substances 0.000 claims abstract description 31
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000000314 lubricant Substances 0.000 claims abstract description 9
- 238000010791 quenching Methods 0.000 claims description 70
- 238000009826 distribution Methods 0.000 claims description 54
- 238000001816 cooling Methods 0.000 claims description 52
- 238000000034 method Methods 0.000 claims description 48
- 238000005266 casting Methods 0.000 claims description 15
- 239000007789 gas Substances 0.000 claims description 12
- 230000009467 reduction Effects 0.000 claims description 12
- 238000005245 sintering Methods 0.000 claims description 10
- 235000012054 meals Nutrition 0.000 claims description 9
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 239000007921 spray Substances 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 35
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 16
- 239000002994 raw material Substances 0.000 description 16
- 230000005291 magnetic effect Effects 0.000 description 15
- 238000003825 pressing Methods 0.000 description 14
- 230000033228 biological regulation Effects 0.000 description 13
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 12
- 239000001301 oxygen Substances 0.000 description 12
- 229910052760 oxygen Inorganic materials 0.000 description 12
- 239000012298 atmosphere Substances 0.000 description 11
- 239000013078 crystal Substances 0.000 description 11
- 125000004429 atom Chemical group 0.000 description 10
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- 238000003723 Smelting Methods 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 6
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- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000012634 fragment Substances 0.000 description 4
- 239000011261 inert gas Substances 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 230000005415 magnetization Effects 0.000 description 4
- NUKZAGXMHTUAFE-UHFFFAOYSA-N methyl hexanoate Chemical compound CCCCCC(=O)OC NUKZAGXMHTUAFE-UHFFFAOYSA-N 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 229910052723 transition metal Inorganic materials 0.000 description 4
- 150000003624 transition metals Chemical class 0.000 description 4
- 229910052779 Neodymium Inorganic materials 0.000 description 3
- 208000037656 Respiratory Sounds Diseases 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000010687 lubricating oil Substances 0.000 description 3
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910052692 Dysprosium Inorganic materials 0.000 description 2
- 229910052777 Praseodymium Inorganic materials 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
- ZDVYABSQRRRIOJ-UHFFFAOYSA-N boron;iron Chemical compound [Fe]#B ZDVYABSQRRRIOJ-UHFFFAOYSA-N 0.000 description 2
- 238000009750 centrifugal casting Methods 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- 229930195729 fatty acid Natural products 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- -1 fatty acid ester Chemical class 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- JGHZJRVDZXSNKQ-UHFFFAOYSA-N methyl octanoate Chemical compound CCCCCCCC(=O)OC JGHZJRVDZXSNKQ-UHFFFAOYSA-N 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000009702 powder compression Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229910052720 vanadium Inorganic materials 0.000 description 2
- 229910052726 zirconium Inorganic materials 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical group [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052691 Erbium Inorganic materials 0.000 description 1
- 229910052688 Gadolinium Inorganic materials 0.000 description 1
- 229910052689 Holmium Inorganic materials 0.000 description 1
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical class C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 1
- 229910052772 Samarium Inorganic materials 0.000 description 1
- 229910052771 Terbium Inorganic materials 0.000 description 1
- 229910052775 Thulium Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
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- 230000003111 delayed effect Effects 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 229910052735 hafnium Inorganic materials 0.000 description 1
- BGOFCVIGEYGEOF-UJPOAAIJSA-N helicin Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1OC1=CC=CC=C1C=O BGOFCVIGEYGEOF-UJPOAAIJSA-N 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000006317 isomerization reaction Methods 0.000 description 1
- 229940070765 laurate Drugs 0.000 description 1
- 239000006247 magnetic powder Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000013081 microcrystal Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229910000938 samarium–cobalt magnet Inorganic materials 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 229910000601 superalloy Inorganic materials 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 1
Images
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
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
-
- 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
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/002—Making metallic powder or suspensions thereof amorphous or microcrystalline
- B22F9/008—Rapid solidification processing
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/0433—Nickel- or cobalt-based alloys
- C22C1/0441—Alloys based on intermetallic compounds of the type rare earth - Co, Ni
-
- 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
- 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
-
- 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
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
-
- 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
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Power Engineering (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
- Hard Magnetic Materials (AREA)
Abstract
Description
激冷细晶组织比例(Vol%) | 成形密度(g/cm3) | 磁铁性能 | ||
Br(T) | (BH)max(kJ/m3) | Hcj(kA/m) | ||
012510152025 | 4.184.224.314.364.384.364.394.36 | 1.3281.3271.3261.3281.3251.3251.3261.321 | 335.1334.8334.0335.5333.3332.8333.9331.8 | 1176.31175.61174.51168.71153.71152.61148.71141.2 |
Claims (14)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000340763 | 2000-11-08 | ||
JP2000340763 | 2000-11-08 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1353206A true CN1353206A (zh) | 2002-06-12 |
CN1182268C CN1182268C (zh) | 2004-12-29 |
Family
ID=18815624
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB011346507A Expired - Lifetime CN1182268C (zh) | 2000-11-08 | 2001-11-08 | 稀土磁铁及其制造方法 |
Country Status (2)
Country | Link |
---|---|
US (2) | US6676773B2 (zh) |
CN (1) | CN1182268C (zh) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1310729C (zh) * | 2003-04-22 | 2007-04-18 | 株式会社新王磁材 | 稀土类合金粉末的制造方法及稀土类烧结磁铁的制造方法 |
CN102211199A (zh) * | 2011-06-10 | 2011-10-12 | 北京大学 | 一种破碎稀土-铁型合金的方法 |
CN109277577A (zh) * | 2017-07-19 | 2019-01-29 | 耐驰干法研磨技术有限公司 | 制造用于制造稀土元素磁体的原材料的方法和设备 |
CN110299238A (zh) * | 2018-03-23 | 2019-10-01 | 日立金属株式会社 | R-t-b系烧结磁体的制造方法 |
CN110523996A (zh) * | 2018-05-24 | 2019-12-03 | 耐驰干法研磨技术有限公司 | 用于制造生产稀土磁铁的原材料的方法和设备 |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3602120B2 (ja) * | 2002-08-08 | 2004-12-15 | 株式会社Neomax | ナノコンポジット磁石用急冷合金の製造方法 |
US7371472B2 (en) * | 2002-12-24 | 2008-05-13 | Sagami Chemical Metal Co., Ltd. | Permanent magnet ring |
US20070089806A1 (en) * | 2005-10-21 | 2007-04-26 | Rolf Blank | Powders for rare earth magnets, rare earth magnets and methods for manufacturing the same |
US7851557B2 (en) * | 2006-06-20 | 2010-12-14 | Lg Chem, Ltd. | Organic/inorganic composite electrolyte membranes using zeolite and fuel cell comprising the same |
US9248500B2 (en) * | 2008-08-04 | 2016-02-02 | Apex Advanced Technologies, Llc | Method for protecting powder metallurgy alloy elements from oxidation and/or hydrolization during sintering |
US20110074530A1 (en) * | 2009-09-30 | 2011-03-31 | General Electric Company | Mixed rare-earth permanent magnet and method of fabrication |
JP5059929B2 (ja) * | 2009-12-04 | 2012-10-31 | 住友電気工業株式会社 | 磁石用粉末 |
CN102107274B (zh) * | 2009-12-25 | 2014-10-22 | 北京中科三环高技术股份有限公司 | 一种连续熔炼甩带氢化的装置与方法 |
JP6042602B2 (ja) * | 2011-08-17 | 2016-12-14 | ミネベア株式会社 | α−Fe/R2TM14B系ナノコンポジット磁石の製造方法 |
WO2013103132A1 (ja) * | 2012-01-04 | 2013-07-11 | トヨタ自動車株式会社 | 希土類ナノコンポジット磁石 |
CN103093921B (zh) | 2013-01-29 | 2016-08-24 | 烟台首钢磁性材料股份有限公司 | 一种r-t-b-m-c系烧结磁铁及其制造方法及专用装置 |
CN105723480B (zh) | 2013-06-17 | 2018-07-17 | 城市矿业科技有限责任公司 | 磁铁再生以产生磁性性能改善或恢复的Nd-Fe-B磁铁 |
CN103377820B (zh) | 2013-07-17 | 2015-11-25 | 烟台首钢磁性材料股份有限公司 | 一种r-t-b-m系烧结磁体及其制造方法 |
JP5729511B1 (ja) * | 2014-04-21 | 2015-06-03 | Tdk株式会社 | R−t−b系永久磁石、及び、回転機 |
US9336932B1 (en) | 2014-08-15 | 2016-05-10 | Urban Mining Company | Grain boundary engineering |
Family Cites Families (20)
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JPS62229803A (ja) * | 1986-03-29 | 1987-10-08 | Kobe Steel Ltd | プラスチツク磁石用Nd−Fe−B系合金粉末 |
JPH066728B2 (ja) | 1986-07-24 | 1994-01-26 | 住友特殊金属株式会社 | 永久磁石材料用原料粉末の製造方法 |
JPS63116404A (ja) | 1986-11-05 | 1988-05-20 | Tdk Corp | 異方性磁石粉末とその製造法 |
US4834811A (en) | 1987-06-19 | 1989-05-30 | Ovonic Synthetic Materials Company | Method of manufacturing, concentrating, and separating enhanced magnetic parameter material from other magnetic co-products |
JPH03167803A (ja) | 1989-11-28 | 1991-07-19 | Shin Etsu Chem Co Ltd | 希土類永久磁石の製造方法 |
JPH04114409A (ja) | 1990-09-04 | 1992-04-15 | Fuji Elelctrochem Co Ltd | ボンド磁石の製造方法 |
US5164826A (en) | 1991-08-19 | 1992-11-17 | Westinghouse Electric Corp. | Method and apparatus for visual inspection of the internal structure of apparatus through internal passages |
US5788782A (en) | 1993-10-14 | 1998-08-04 | Sumitomo Special Metals Co., Ltd. | R-FE-B permanent magnet materials and process of producing the same |
EP1260995B1 (en) | 1993-11-02 | 2005-03-30 | TDK Corporation | Preparation of permanent magnet |
JPH0888112A (ja) | 1994-09-14 | 1996-04-02 | Sumitomo Special Metals Co Ltd | R−Fe−B系焼結永久磁石の製造方法 |
JP3171558B2 (ja) * | 1995-06-30 | 2001-05-28 | 株式会社東芝 | 磁性材料およびボンド磁石 |
JP3771710B2 (ja) | 1997-03-14 | 2006-04-26 | 住友金属工業株式会社 | 希土類系磁石用原料合金とその製造方法 |
JPH1154351A (ja) | 1997-07-31 | 1999-02-26 | Hitachi Metals Ltd | R−Fe−B系希土類永久磁石の製造方法およびR−Fe−B系希土類永久磁石 |
US6159308A (en) | 1997-12-12 | 2000-12-12 | Hitachi Metals, Ltd. | Rare earth permanent magnet and production method thereof |
JP3693839B2 (ja) | 1999-01-29 | 2005-09-14 | 信越化学工業株式会社 | 希土類磁石用合金薄帯、合金微粉末及びそれらの製造方法 |
JP3693838B2 (ja) | 1999-01-29 | 2005-09-14 | 信越化学工業株式会社 | 希土類磁石用合金薄帯、合金微粉末及びそれらの製造方法 |
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 |
JP3231034B1 (ja) * | 2000-05-09 | 2001-11-19 | 住友特殊金属株式会社 | 希土類磁石およびその製造方法 |
US6648984B2 (en) * | 2000-09-28 | 2003-11-18 | Sumitomo Special Metals Co., Ltd. | Rare earth magnet and method for manufacturing the same |
-
2001
- 2001-11-05 US US09/985,671 patent/US6676773B2/en not_active Expired - Lifetime
- 2001-11-08 CN CNB011346507A patent/CN1182268C/zh not_active Expired - Lifetime
-
2003
- 2003-08-21 US US10/644,782 patent/US7138017B2/en not_active Expired - Lifetime
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
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CN1310729C (zh) * | 2003-04-22 | 2007-04-18 | 株式会社新王磁材 | 稀土类合金粉末的制造方法及稀土类烧结磁铁的制造方法 |
CN102211199A (zh) * | 2011-06-10 | 2011-10-12 | 北京大学 | 一种破碎稀土-铁型合金的方法 |
CN102211199B (zh) * | 2011-06-10 | 2013-01-23 | 北京大学 | 一种破碎稀土-铁型合金的方法 |
CN109277577A (zh) * | 2017-07-19 | 2019-01-29 | 耐驰干法研磨技术有限公司 | 制造用于制造稀土元素磁体的原材料的方法和设备 |
CN110299238A (zh) * | 2018-03-23 | 2019-10-01 | 日立金属株式会社 | R-t-b系烧结磁体的制造方法 |
CN110523996A (zh) * | 2018-05-24 | 2019-12-03 | 耐驰干法研磨技术有限公司 | 用于制造生产稀土磁铁的原材料的方法和设备 |
Also Published As
Publication number | Publication date |
---|---|
US7138017B2 (en) | 2006-11-21 |
US6676773B2 (en) | 2004-01-13 |
US20020129874A1 (en) | 2002-09-19 |
US20040050455A1 (en) | 2004-03-18 |
CN1182268C (zh) | 2004-12-29 |
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