CN102592778A - 低成本烧结钕铁硼磁体及其制备方法 - Google Patents
低成本烧结钕铁硼磁体及其制备方法 Download PDFInfo
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- CN102592778A CN102592778A CN2012100682001A CN201210068200A CN102592778A CN 102592778 A CN102592778 A CN 102592778A CN 2012100682001 A CN2012100682001 A CN 2012100682001A CN 201210068200 A CN201210068200 A CN 201210068200A CN 102592778 A CN102592778 A CN 102592778A
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- powder
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- sintered ndfeb
- ndfeb magnet
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000004519 manufacturing process Methods 0.000 title abstract description 5
- 229910052796 boron Inorganic materials 0.000 title 1
- 239000000843 powder Substances 0.000 claims abstract description 76
- 239000001257 hydrogen Substances 0.000 claims abstract description 62
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 62
- 229910001172 neodymium magnet Inorganic materials 0.000 claims abstract description 41
- 238000005245 sintering Methods 0.000 claims abstract description 29
- 238000002360 preparation method Methods 0.000 claims abstract description 23
- 239000000463 material Substances 0.000 claims abstract description 20
- 229910052751 metal Inorganic materials 0.000 claims abstract description 17
- 239000002184 metal Substances 0.000 claims abstract description 17
- 238000005266 casting Methods 0.000 claims abstract description 16
- 238000000462 isostatic pressing Methods 0.000 claims abstract description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 62
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 58
- 238000002844 melting Methods 0.000 claims description 43
- 230000008018 melting Effects 0.000 claims description 43
- 238000003801 milling Methods 0.000 claims description 37
- 229910052757 nitrogen Inorganic materials 0.000 claims description 31
- 239000002245 particle Substances 0.000 claims description 24
- 238000010438 heat treatment Methods 0.000 claims description 21
- 229910045601 alloy Inorganic materials 0.000 claims description 19
- 239000000956 alloy Substances 0.000 claims description 19
- 230000003647 oxidation Effects 0.000 claims description 18
- 238000007254 oxidation reaction Methods 0.000 claims description 18
- 238000010792 warming Methods 0.000 claims description 18
- 238000009413 insulation Methods 0.000 claims description 17
- 230000003068 static effect Effects 0.000 claims description 17
- 239000002994 raw material Substances 0.000 claims description 15
- 238000001816 cooling Methods 0.000 claims description 13
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 12
- 239000003112 inhibitor Substances 0.000 claims description 12
- 238000012856 packing Methods 0.000 claims description 12
- 238000009461 vacuum packaging Methods 0.000 claims description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 238000006392 deoxygenation reaction Methods 0.000 claims description 10
- 238000007872 degassing Methods 0.000 claims description 9
- 238000005303 weighing Methods 0.000 claims description 9
- 206010008469 Chest discomfort Diseases 0.000 claims description 6
- 229910052786 argon Inorganic materials 0.000 claims description 6
- 210000000795 conjunctiva Anatomy 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 6
- 239000012535 impurity Substances 0.000 claims description 6
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 238000012423 maintenance Methods 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 6
- 238000010186 staining Methods 0.000 claims description 6
- 238000012360 testing method Methods 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 239000001301 oxygen Substances 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 150000002431 hydrogen Chemical class 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 238000005498 polishing Methods 0.000 claims description 3
- 229910052692 Dysprosium Inorganic materials 0.000 abstract description 3
- 229910052777 Praseodymium Inorganic materials 0.000 abstract description 3
- 238000003723 Smelting Methods 0.000 abstract description 3
- 230000032683 aging Effects 0.000 abstract description 3
- KBQHZAAAGSGFKK-UHFFFAOYSA-N dysprosium atom Chemical compound [Dy] KBQHZAAAGSGFKK-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052746 lanthanum Inorganic materials 0.000 abstract description 3
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 abstract description 3
- PUDIUYLPXJFUGB-UHFFFAOYSA-N praseodymium atom Chemical compound [Pr] PUDIUYLPXJFUGB-UHFFFAOYSA-N 0.000 abstract description 3
- 230000003064 anti-oxidating effect Effects 0.000 abstract description 2
- 150000002739 metals Chemical class 0.000 abstract description 2
- 239000010949 copper Substances 0.000 abstract 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 1
- 229910052688 Gadolinium Inorganic materials 0.000 abstract 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 238000001514 detection method Methods 0.000 abstract 1
- 238000005755 formation reaction Methods 0.000 abstract 1
- UIWYJDYFSGRHKR-UHFFFAOYSA-N gadolinium atom Chemical compound [Gd] UIWYJDYFSGRHKR-UHFFFAOYSA-N 0.000 abstract 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 abstract 1
- 229910052726 zirconium Inorganic materials 0.000 abstract 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 7
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 229910052779 Neodymium Inorganic materials 0.000 description 4
- 239000007769 metal material Substances 0.000 description 4
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 description 4
- 150000002910 rare earth metals Chemical class 0.000 description 4
- 239000013078 crystal Substances 0.000 description 3
- 230000005389 magnetism Effects 0.000 description 2
- 229910000521 B alloy Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- -1 praseodymium Chemical class 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001550 time effect Effects 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
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- Manufacturing Cores, Coils, And Magnets (AREA)
- Hard Magnetic Materials (AREA)
- Powder Metallurgy (AREA)
Abstract
Description
Claims (6)
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CN 201210068200 CN102592778B (zh) | 2012-03-15 | 2012-03-15 | 低成本烧结钕铁硼磁体及其制备方法 |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105006327A (zh) * | 2015-08-23 | 2015-10-28 | 宁德市星宇科技有限公司 | 一种高性能含钆铸片磁体及其制备方法 |
CN105405563A (zh) * | 2015-12-18 | 2016-03-16 | 京磁材料科技股份有限公司 | 一种钕铁硼磁体的氢破碎方法 |
CN110125419A (zh) * | 2019-05-28 | 2019-08-16 | 浙江鑫盛永磁科技有限公司 | 一种钕铁硼粉末制备方法 |
CN110289161A (zh) * | 2019-07-16 | 2019-09-27 | 宁德市星宇科技有限公司 | 一种低稀土含量的钕铁硼磁体的制备方法 |
CN111341514A (zh) * | 2020-03-25 | 2020-06-26 | 余姚市宏伟磁材科技有限公司 | 一种低成本钕铁硼磁体及其制备方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5034146A (en) * | 1986-06-26 | 1991-07-23 | Shin-Etsu Chemical Co., Ltd. | Rare earth-based permanent magnet |
CN101105998A (zh) * | 2007-06-04 | 2008-01-16 | 内蒙古科技大学 | 镨钕镧铁硼、镨钕钆铁硼永磁材料及制造方法 |
CN101630557A (zh) * | 2008-07-16 | 2010-01-20 | 宁波科宁达工业有限公司 | 含钆的烧结稀土永磁合金及其制备方法 |
CN101947650A (zh) * | 2010-09-06 | 2011-01-19 | 宁德市星宇科技有限公司 | 钕铁硼磁粉压制前置冷冻工艺 |
CN102103917A (zh) * | 2009-12-22 | 2011-06-22 | 北京有色金属研究总院 | 一种钕铁硼磁体、制备方法及应用该磁体的器件 |
-
2012
- 2012-03-15 CN CN 201210068200 patent/CN102592778B/zh active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5034146A (en) * | 1986-06-26 | 1991-07-23 | Shin-Etsu Chemical Co., Ltd. | Rare earth-based permanent magnet |
CN101105998A (zh) * | 2007-06-04 | 2008-01-16 | 内蒙古科技大学 | 镨钕镧铁硼、镨钕钆铁硼永磁材料及制造方法 |
CN101630557A (zh) * | 2008-07-16 | 2010-01-20 | 宁波科宁达工业有限公司 | 含钆的烧结稀土永磁合金及其制备方法 |
CN102103917A (zh) * | 2009-12-22 | 2011-06-22 | 北京有色金属研究总院 | 一种钕铁硼磁体、制备方法及应用该磁体的器件 |
CN101947650A (zh) * | 2010-09-06 | 2011-01-19 | 宁德市星宇科技有限公司 | 钕铁硼磁粉压制前置冷冻工艺 |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105006327A (zh) * | 2015-08-23 | 2015-10-28 | 宁德市星宇科技有限公司 | 一种高性能含钆铸片磁体及其制备方法 |
CN105405563A (zh) * | 2015-12-18 | 2016-03-16 | 京磁材料科技股份有限公司 | 一种钕铁硼磁体的氢破碎方法 |
CN110125419A (zh) * | 2019-05-28 | 2019-08-16 | 浙江鑫盛永磁科技有限公司 | 一种钕铁硼粉末制备方法 |
CN110289161A (zh) * | 2019-07-16 | 2019-09-27 | 宁德市星宇科技有限公司 | 一种低稀土含量的钕铁硼磁体的制备方法 |
CN110289161B (zh) * | 2019-07-16 | 2021-03-30 | 宁德市星宇科技有限公司 | 一种低稀土含量的钕铁硼磁体的制备方法 |
CN111341514A (zh) * | 2020-03-25 | 2020-06-26 | 余姚市宏伟磁材科技有限公司 | 一种低成本钕铁硼磁体及其制备方法 |
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CN102592778B (zh) | 2013-09-18 |
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