CN1225750C - 含微量氧的R-Fe-B系烧结磁体及其制造方法 - Google Patents
含微量氧的R-Fe-B系烧结磁体及其制造方法 Download PDFInfo
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- CN1225750C CN1225750C CN 02158707 CN02158707A CN1225750C CN 1225750 C CN1225750 C CN 1225750C CN 02158707 CN02158707 CN 02158707 CN 02158707 A CN02158707 A CN 02158707A CN 1225750 C CN1225750 C CN 1225750C
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- 239000001301 oxygen Substances 0.000 title claims abstract description 39
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 39
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 230000005294 ferromagnetic effect Effects 0.000 title 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 38
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 8
- 239000007789 gas Substances 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 19
- 238000005245 sintering Methods 0.000 claims description 15
- 229910052739 hydrogen Inorganic materials 0.000 claims description 12
- 239000001257 hydrogen Substances 0.000 claims description 11
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 10
- 238000000465 moulding Methods 0.000 claims description 5
- 238000005266 casting Methods 0.000 claims description 4
- 239000011261 inert gas Substances 0.000 claims description 4
- 238000003801 milling Methods 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 4
- 238000006356 dehydrogenation reaction Methods 0.000 claims description 2
- 238000009826 distribution Methods 0.000 claims description 2
- 239000003595 mist Substances 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims 3
- 229910045601 alloy Inorganic materials 0.000 claims 3
- 229910052777 Praseodymium Inorganic materials 0.000 claims 2
- 229910052771 Terbium Inorganic materials 0.000 claims 2
- 229910052692 Dysprosium Inorganic materials 0.000 claims 1
- 229910052779 Neodymium Inorganic materials 0.000 claims 1
- 229910052782 aluminium Inorganic materials 0.000 claims 1
- 229910052791 calcium Inorganic materials 0.000 claims 1
- 229910052799 carbon Inorganic materials 0.000 claims 1
- 229910052804 chromium Inorganic materials 0.000 claims 1
- 229910052802 copper Inorganic materials 0.000 claims 1
- 238000000227 grinding Methods 0.000 claims 1
- 229910052735 hafnium Inorganic materials 0.000 claims 1
- 229910052749 magnesium Inorganic materials 0.000 claims 1
- 229910052748 manganese Inorganic materials 0.000 claims 1
- 229910052758 niobium Inorganic materials 0.000 claims 1
- 229910052710 silicon Inorganic materials 0.000 claims 1
- 229910052715 tantalum Inorganic materials 0.000 claims 1
- 229910052719 titanium Inorganic materials 0.000 claims 1
- 229910052721 tungsten Inorganic materials 0.000 claims 1
- 229910052720 vanadium Inorganic materials 0.000 claims 1
- 229910052725 zinc Inorganic materials 0.000 claims 1
- 229910052726 zirconium Inorganic materials 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 8
- 150000002910 rare earth metals Chemical class 0.000 abstract description 7
- 239000000843 powder Substances 0.000 abstract description 3
- 239000012298 atmosphere Substances 0.000 abstract description 2
- 239000012299 nitrogen atmosphere Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 description 8
- 238000001035 drying Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 238000010298 pulverizing process Methods 0.000 description 3
- 238000003723 Smelting Methods 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 206010021143 Hypoxia Diseases 0.000 description 1
- YZCKVEUIGOORGS-IGMARMGPSA-N Protium Chemical compound [1H] YZCKVEUIGOORGS-IGMARMGPSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 208000018875 hypoxemia Diseases 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 150000002926 oxygen Chemical class 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Powder Metallurgy (AREA)
Abstract
Description
实施例NO. | 磁体组成/wt% | Br/KG | jHc/KOe | (BH)max/MGOe | |||
Nd+Pr+Dy | O | C | N | ||||
1 | 28.34 | 0.0764 | 0.0233 | 0.0595 | 14.77 | 14.66 | 50.29 |
2 | 28.21 | 0.0750 | 0.0220 | 0.0450 | 14.45 | 14.45 | 50.50 |
3 | 28.05 | 0.0738 | 0.0232 | 0.0594 | 14.39 | 15.35 | 49.44 |
4 | 28.05 | 0.0735 | 0.0232 | 0.0594 | 14.38 | 15.35 | 49.53 |
实施例NO. | 磁体组成/wt% | Br/KG | jHc/KOe | (BH)max/MGOe | |||
Nd+Pr+Dy | O | C | N | ||||
5 | 28.21 | 0.0272 | 0.0392 | 0.0436 | 14.78 | 12.43 | 51.6 |
6 | 28.41 | 0.0280 | 0.0392 | 0.0436 | 14.64 | 12.92 | 51.46 |
7 | 28.67 | 0.0367 | 0.0338 | 0.0675 | 14.46 | 13.33 | 50.30 |
实施例NO. | O/wt% | Br/KG | jHc/KOe | bHc/KOe | Hk/KOe | Hk/jHc | (BH)max/MGOe |
8 | 0.0770 | 14.38 | 14.59 | 13.52 | 14.18 | 0.97 | 49.48 |
9 | 0.0750 | 14.50 | 14.54 | 13.60 | 14.06 | 0.96 | 50.35 |
实施例NO. | x值 | O/wt% | Br/KG | jHc/KOe | (BH)max/MGOe |
10 | 1.2 | 0.0260 | 14.22 | 17.0 | 49.5 |
11 | 3.0 | 0.0320 | 13.60 | 22.0 | 45 |
Claims (5)
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CN 02158707 CN1225750C (zh) | 2002-12-26 | 2002-12-26 | 含微量氧的R-Fe-B系烧结磁体及其制造方法 |
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CN 02158707 CN1225750C (zh) | 2002-12-26 | 2002-12-26 | 含微量氧的R-Fe-B系烧结磁体及其制造方法 |
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CN1510700A CN1510700A (zh) | 2004-07-07 |
CN1225750C true CN1225750C (zh) | 2005-11-02 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102568809A (zh) * | 2012-03-01 | 2012-07-11 | 烟台正海磁性材料股份有限公司 | 一种制备耐腐蚀高性能烧结钕铁硼磁体的方法 |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007053978A1 (fr) * | 2005-11-10 | 2007-05-18 | Yantai Zhenghai Magnetic Material Co., Ltd. | AIMANT DE FRITTAGE À SYSTÈME R-Fe-B COMPRENANT DE L’OXYGÈNE À L’ÉCHELLE MICROSCOPIQUE ET SON PROCÉDÉ DE FABRICATION |
CN101819841A (zh) * | 2010-05-17 | 2010-09-01 | 上海交通大学 | 钕铁硼磁性材料及其制备方法 |
CN101859639B (zh) * | 2010-07-06 | 2013-03-27 | 烟台正海磁性材料股份有限公司 | 一种梯度电阻R-Fe-B系磁体及其生产方法 |
JP5572673B2 (ja) | 2011-07-08 | 2014-08-13 | 昭和電工株式会社 | R−t−b系希土類焼結磁石用合金、r−t−b系希土類焼結磁石用合金の製造方法、r−t−b系希土類焼結磁石用合金材料、r−t−b系希土類焼結磁石、r−t−b系希土類焼結磁石の製造方法およびモーター |
CN103310971A (zh) * | 2012-10-09 | 2013-09-18 | 中磁科技股份有限公司 | 一种获得高性能烧结钕铁硼磁体的制备方法 |
CN102956337B (zh) * | 2012-11-09 | 2016-05-25 | 厦门钨业股份有限公司 | 一种烧结Nd-Fe-B系磁铁的省却工序的制作方法 |
JP6238444B2 (ja) * | 2013-01-07 | 2017-11-29 | 昭和電工株式会社 | R−t−b系希土類焼結磁石、r−t−b系希土類焼結磁石用合金およびその製造方法 |
CN103794321B (zh) * | 2014-03-04 | 2016-01-06 | 南京信息工程大学 | 一种涂料用镨铁硼永磁材料及制备方法 |
CN104064346B (zh) * | 2014-05-30 | 2016-08-17 | 宁波同创强磁材料有限公司 | 一种钕铁硼磁体及其制备方法 |
CN105321644B (zh) * | 2015-10-21 | 2017-07-25 | 钢铁研究总院 | 一种高矫顽力烧结态Ce磁体或富Ce磁体及其制备方法 |
CN105655077B (zh) * | 2016-04-13 | 2017-10-17 | 烟台正海磁性材料股份有限公司 | 一种高矫顽力钕铁硼的制造方法 |
CN113871120B (zh) * | 2017-12-26 | 2023-06-27 | 钢铁研究总院 | 一种混合稀土永磁材料及其制备方法 |
CN108281273A (zh) * | 2018-01-16 | 2018-07-13 | 宁波招宝磁业有限公司 | 一种低氧含量渗Dy/Tb烧结钕铁硼材料及其制备方法 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102568809A (zh) * | 2012-03-01 | 2012-07-11 | 烟台正海磁性材料股份有限公司 | 一种制备耐腐蚀高性能烧结钕铁硼磁体的方法 |
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Address after: No. 22, Yantai economic and Technological Development Zone, Yantai, Shandong, Zhujianglu Road Patentee after: Yantai Zhenghai Magnetic Material Co., Ltd. Address before: No. 22, Yantai economic and Technological Development Zone, Yantai, Shandong, Zhujianglu Road Patentee before: Yantai Zhenghai Magnetic Material Co., Ltd. |
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Decision date of declaring invalidation: 20130725 Decision number of declaring invalidation: 21031 Granted publication date: 20051102 |