CN1228792C - 稀土烧结磁铁的制造方法 - Google Patents
稀土烧结磁铁的制造方法 Download PDFInfo
- Publication number
- CN1228792C CN1228792C CN 01115681 CN01115681A CN1228792C CN 1228792 C CN1228792 C CN 1228792C CN 01115681 CN01115681 CN 01115681 CN 01115681 A CN01115681 A CN 01115681A CN 1228792 C CN1228792 C CN 1228792C
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- CN
- China
- Prior art keywords
- sintering
- rare
- formed body
- sinter box
- sintered magnet
- 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
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- 229910052761 rare earth metal Inorganic materials 0.000 title claims abstract description 85
- 150000002910 rare earth metals Chemical class 0.000 title claims abstract description 66
- 238000000034 method Methods 0.000 title claims description 52
- 238000005245 sintering Methods 0.000 claims abstract description 179
- 239000000956 alloy Substances 0.000 claims abstract description 56
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 55
- 239000000843 powder Substances 0.000 claims abstract description 52
- 238000004519 manufacturing process Methods 0.000 claims abstract description 27
- 239000011358 absorbing material Substances 0.000 claims description 67
- 238000000465 moulding Methods 0.000 claims description 14
- 238000009702 powder compression Methods 0.000 claims description 8
- 230000005415 magnetization Effects 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 abstract description 4
- 230000002745 absorbent Effects 0.000 abstract 1
- 239000002250 absorbent Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 99
- 238000003860 storage Methods 0.000 description 25
- 238000007254 oxidation reaction Methods 0.000 description 23
- 230000003647 oxidation Effects 0.000 description 21
- 230000008569 process Effects 0.000 description 21
- 230000008093 supporting effect Effects 0.000 description 15
- 239000011575 calcium Substances 0.000 description 13
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 12
- 239000000203 mixture Substances 0.000 description 12
- 239000001301 oxygen Substances 0.000 description 12
- 229910052760 oxygen Inorganic materials 0.000 description 12
- 230000005291 magnetic effect Effects 0.000 description 11
- 229910052791 calcium Inorganic materials 0.000 description 10
- 239000000463 material Substances 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 9
- 239000011261 inert gas Substances 0.000 description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- 238000012545 processing Methods 0.000 description 8
- 230000032683 aging Effects 0.000 description 7
- 238000001816 cooling Methods 0.000 description 7
- 229910052750 molybdenum Inorganic materials 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 6
- 238000000748 compression moulding Methods 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 230000001590 oxidative effect Effects 0.000 description 6
- 239000000047 product Substances 0.000 description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 5
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 5
- 230000033228 biological regulation Effects 0.000 description 5
- 229910052796 boron Inorganic materials 0.000 description 5
- 239000001257 hydrogen Substances 0.000 description 5
- 229910052739 hydrogen Inorganic materials 0.000 description 5
- 229910052749 magnesium Inorganic materials 0.000 description 5
- 239000011733 molybdenum Substances 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000000314 lubricant Substances 0.000 description 4
- NUKZAGXMHTUAFE-UHFFFAOYSA-N methyl hexanoate Chemical compound CCCCCC(=O)OC NUKZAGXMHTUAFE-UHFFFAOYSA-N 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 239000012071 phase Substances 0.000 description 4
- 230000007306 turnover Effects 0.000 description 4
- 229910052779 Neodymium Inorganic materials 0.000 description 3
- 230000004308 accommodation Effects 0.000 description 3
- 229910052786 argon Inorganic materials 0.000 description 3
- 230000036760 body temperature Effects 0.000 description 3
- 238000005266 casting Methods 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 230000002950 deficient Effects 0.000 description 3
- 239000012634 fragment Substances 0.000 description 3
- 238000010298 pulverizing process Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000003870 refractory metal Substances 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 238000005979 thermal decomposition reaction Methods 0.000 description 3
- 229910000859 α-Fe Inorganic materials 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 2
- 239000000920 calcium hydroxide Substances 0.000 description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000003795 desorption Methods 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- 229930195729 fatty acid Natural products 0.000 description 2
- -1 fatty acid ester Chemical class 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 229910052738 indium Inorganic materials 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 229910001172 neodymium magnet Inorganic materials 0.000 description 2
- 229910052758 niobium Inorganic materials 0.000 description 2
- 230000009257 reactivity Effects 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 229910052718 tin Inorganic materials 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 229910052720 vanadium Inorganic materials 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 229910052726 zirconium Inorganic materials 0.000 description 2
- 229910052692 Dysprosium Inorganic materials 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
- 229910052777 Praseodymium Inorganic materials 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
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000003064 anti-oxidating effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 150000001721 carbon Chemical class 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006356 dehydrogenation reaction Methods 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 229910052735 hafnium Inorganic materials 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229910000938 samarium–cobalt magnet Inorganic materials 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000003319 supportive effect Effects 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
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- Powder Metallurgy (AREA)
Abstract
Description
Claims (6)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000133239 | 2000-05-02 | ||
JP2000133239 | 2000-05-02 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1321990A CN1321990A (zh) | 2001-11-14 |
CN1228792C true CN1228792C (zh) | 2005-11-23 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 01115681 Expired - Lifetime CN1228792C (zh) | 2000-05-02 | 2001-04-29 | 稀土烧结磁铁的制造方法 |
Country Status (1)
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CN (1) | CN1228792C (zh) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102039407B (zh) * | 2009-10-14 | 2014-09-17 | 三环瓦克华(北京)磁性器件有限公司 | 减少烧结钕铁硼磁体烧结过程中的有害气体的方法 |
DE102011014156A1 (de) * | 2011-03-16 | 2012-09-20 | Epcos Ag | Verfahren zur Herstellung von piezoelektrischen Aktuatorbauelementen |
CN103801693B (zh) * | 2012-11-08 | 2016-01-06 | 沈阳中北通磁科技股份有限公司 | 稀土永磁合金柔性烧结工艺方法 |
CN112496319A (zh) * | 2019-09-16 | 2021-03-16 | 宿迁启祥电子科技有限公司 | 一种烧结装置及钨合金材料的制备方法 |
CN111623637A (zh) * | 2020-06-03 | 2020-09-04 | 陕西华星电子开发有限公司 | 一种钼承烧钵以及半导体陶瓷半导化工艺 |
CN112066730A (zh) * | 2020-09-16 | 2020-12-11 | 无锡斯贝尔磁性材料有限公司 | 一种MnZn铁氧体高导磁环毛坯的烧结装置及烧结方法 |
CN117524703B (zh) * | 2022-08-04 | 2024-05-28 | 南通三优佳磁业有限公司 | 一种磁粉的烧结装置 |
-
2001
- 2001-04-29 CN CN 01115681 patent/CN1228792C/zh not_active Expired - Lifetime
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Publication number | Publication date |
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CN1321990A (zh) | 2001-11-14 |
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Owner name: HITACHI METALS, LTD. Free format text: FORMER OWNER: SUMITOMO SPEC METALS Effective date: 20130520 |
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Effective date of registration: 20130520 Address after: Tokyo, Japan, Japan Patentee after: Hitachi Metals Co., Ltd. Address before: Osaka Patentee before: Neomax Co., Ltd. |
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Application publication date: 20011114 Assignee: Antai Science and Technology Co., Ltd. Assignor: Hitachi Metals Co., Ltd. Contract record no.: 2013990000365 Denomination of invention: Method and appts. for producing magnetic rare earth alloy powder, method for prodn. bonded magnet, method for producing rare earth sintering magnet, and method and appts. for improving purity of inert Granted publication date: 20051123 License type: Common License Record date: 20130701 Application publication date: 20011114 Assignee: Beijing Zhongke Sanhuan High-Tech Co., Ltd. Assignor: Hitachi Metals Co., Ltd. Contract record no.: 2013990000364 Denomination of invention: Method and appts. for producing magnetic rare earth alloy powder, method for prodn. bonded magnet, method for producing rare earth sintering magnet, and method and appts. for improving purity of inert Granted publication date: 20051123 License type: Common License Record date: 20130701 Application publication date: 20011114 Assignee: Beijing Jingci Magnet Co., Ltd. Assignor: Hitachi Metals Co., Ltd. Contract record no.: 2013990000374 Denomination of invention: Method and appts. for producing magnetic rare earth alloy powder, method for prodn. bonded magnet, method for producing rare earth sintering magnet, and method and appts. for improving purity of inert Granted publication date: 20051123 License type: Common License Record date: 20130703 |
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Application publication date: 20011114 Assignee: Ningbo Yunsheng Co., Ltd. Assignor: Hitachi Metals Co., Ltd. Contract record no.: 2014990000031 Denomination of invention: Method and appts. for producing magnetic rare earth alloy powder, method for prodn. bonded magnet, method for producing rare earth sintering magnet, and method and appts. for improving purity of inert Granted publication date: 20051123 License type: Common License Record date: 20140114 |
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LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
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Address after: Japan Tokyo port harbor 2 chome No. 70 Patentee after: Hitachi Metals Co., Ltd. Address before: Tokyo, Japan, Japan Patentee before: Hitachi Metals Co., Ltd. |
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EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20011114 Assignee: Hitachi metal ring Ci material (Nantong) Co. Ltd. Assignor: Hitachi Metals Contract record no.: 2017990000034 Denomination of invention: Method and appts. for producing magnetic rare earth alloy powder, method for prodn. bonded magnet, method for producing rare earth sintering magnet, and method and appts. for improving purity of inert Granted publication date: 20051123 License type: Common License Record date: 20170209 |
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Correction item: A transferee of the entry into force of the contract Correct: Hitachi metal ring magnets (Nantong) Co. Ltd. False: Hitachi metal ring Ci material (Nantong) Co. Ltd. Number: 11 Volume: 33 |
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