CN1379417A - 烧结环形磁铁 - Google Patents
烧结环形磁铁 Download PDFInfo
- Publication number
- CN1379417A CN1379417A CN 02107300 CN02107300A CN1379417A CN 1379417 A CN1379417 A CN 1379417A CN 02107300 CN02107300 CN 02107300 CN 02107300 A CN02107300 A CN 02107300A CN 1379417 A CN1379417 A CN 1379417A
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- Prior art keywords
- magnet
- sintered
- ring magnet
- sintered ring
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- 229910052751 metal Inorganic materials 0.000 claims abstract description 32
- 239000002184 metal Substances 0.000 claims abstract description 32
- 239000000843 powder Substances 0.000 claims abstract description 31
- 238000000034 method Methods 0.000 claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 claims abstract description 12
- 230000008569 process Effects 0.000 claims abstract description 6
- 238000009417 prefabrication Methods 0.000 claims description 47
- 238000005245 sintering Methods 0.000 claims description 34
- 230000004323 axial length Effects 0.000 claims description 26
- 229910000859 α-Fe Inorganic materials 0.000 claims description 16
- 229910052742 iron Inorganic materials 0.000 claims description 7
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 229910000765 intermetallic Inorganic materials 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 238000012545 processing Methods 0.000 abstract description 6
- 238000000465 moulding Methods 0.000 abstract 5
- 230000004907 flux Effects 0.000 description 26
- 238000000748 compression moulding Methods 0.000 description 19
- 230000002093 peripheral effect Effects 0.000 description 19
- 238000010438 heat treatment Methods 0.000 description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- 239000013078 crystal Substances 0.000 description 9
- 239000002002 slurry Substances 0.000 description 9
- 229910004298 SiO 2 Inorganic materials 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 238000007493 shaping process Methods 0.000 description 6
- 230000000996 additive effect Effects 0.000 description 5
- 230000033228 biological regulation Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- 229910052779 Neodymium Inorganic materials 0.000 description 4
- 229910052777 Praseodymium Inorganic materials 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 238000000151 deposition Methods 0.000 description 4
- 239000003822 epoxy resin Substances 0.000 description 4
- 235000012054 meals Nutrition 0.000 description 4
- 229920000647 polyepoxide Polymers 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 229910052692 Dysprosium Inorganic materials 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 229910052733 gallium Inorganic materials 0.000 description 3
- 230000005415 magnetization Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 238000004381 surface treatment Methods 0.000 description 3
- 229920001187 thermosetting polymer Polymers 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910052684 Cerium Inorganic materials 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229910001172 neodymium magnet Inorganic materials 0.000 description 2
- 229910052758 niobium Inorganic materials 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910001122 Mischmetal Inorganic materials 0.000 description 1
- 230000004523 agglutinating effect Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000005307 ferromagnetism Effects 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Images
Landscapes
- Manufacturing Cores, Coils, And Magnets (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
Description
例No. | 成形段数 | 接合部数 | 总磁通量(%) | dBo(G) | 直线性(mm) | 备考 | 相邻磁极间角度θ的标准离差(°) |
实施例1 | 2 | 1 | 100 | 20 | 0.10 | 使用正八角形的隔板和芯 | 2.2 |
实施例2 | 3 | 2 | 99 | 20 | 0.11 | 使用正八角形的隔板和芯 | 2.3 |
实施例3 | 2 | 1 | 95 | 60 | 0.18 | 使用圆形隔板和芯 | 2.6 |
实施例4 | 5 | 4 | 94 | 60 | 0.19 | 使用圆形隔板和芯 | 2.7 |
实施例5 | 2 | 1 | 95 | 60 | 0.15 | 使用圆形隔板和芯 | 2.7 |
比较例1 | 1 | 0 | 80 | 90 | 0.19 | 1段制品(L=150) | 8.9 |
比较例2 | 1 | 0 | 96 | 90 | 0.17 | 1段制品(L=20) | 8.2 |
参考例1 | 1 | 0 | 99 | 20 | 0.11 | 沿轴向层叠,接合2个环形磁铁 | 2.2 |
例No. | 成形段数 | 接合部数 | 总磁通量(%) | dBo(G) | 直线性(mm) | 备考 |
实施例6 | 2 | 1 | 100 | 25 | 0.09 | 使用正八角形的隔板和芯 |
参考例2 | 1 | 0 | 99 | 25 | 0.10 | 沿轴向层叠接合2个环形磁铁 |
Claims (8)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP98591/01 | 2001-03-30 | ||
JP98591/2001 | 2001-03-30 | ||
JP2001098591 | 2001-03-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1379417A true CN1379417A (zh) | 2002-11-13 |
CN1211810C CN1211810C (zh) | 2005-07-20 |
Family
ID=18952227
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 02107300 Expired - Lifetime CN1211810C (zh) | 2001-03-30 | 2002-03-29 | 烧结环形磁铁 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN1211810C (zh) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102136341A (zh) * | 2010-12-30 | 2011-07-27 | 包头稀土研究院 | 一种各向异性v型取向磁环 |
CN1754299B (zh) * | 2003-02-27 | 2012-05-23 | 三菱电机株式会社 | 环形磁铁及其制造方法 |
CN103248177A (zh) * | 2013-04-28 | 2013-08-14 | 广东正民高新磁电有限公司 | 一种制造多段永磁铁转子的方法 |
CN107431420A (zh) * | 2015-02-26 | 2017-12-01 | 美国轮轴制造公司 | 无刷直流电机 |
CN107617740A (zh) * | 2016-07-15 | 2018-01-23 | 日立金属株式会社 | 烧结体、其制造方法、冲压装置和树脂模制环 |
-
2002
- 2002-03-29 CN CN 02107300 patent/CN1211810C/zh not_active Expired - Lifetime
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1754299B (zh) * | 2003-02-27 | 2012-05-23 | 三菱电机株式会社 | 环形磁铁及其制造方法 |
CN102136341A (zh) * | 2010-12-30 | 2011-07-27 | 包头稀土研究院 | 一种各向异性v型取向磁环 |
CN103248177A (zh) * | 2013-04-28 | 2013-08-14 | 广东正民高新磁电有限公司 | 一种制造多段永磁铁转子的方法 |
CN103248177B (zh) * | 2013-04-28 | 2015-05-20 | 广东正民高新磁电有限公司 | 一种制造多段永磁铁转子的方法 |
CN107431420A (zh) * | 2015-02-26 | 2017-12-01 | 美国轮轴制造公司 | 无刷直流电机 |
CN107431420B (zh) * | 2015-02-26 | 2019-12-13 | 美国轮轴制造公司 | 无刷直流电机 |
US10673290B2 (en) | 2015-02-26 | 2020-06-02 | American Axle & Manufacturing, Inc. | Brushless DC electric motor |
TWI719013B (zh) * | 2015-02-26 | 2021-02-21 | 美商美國輪軸製造公司 | 形成無刷直流電動馬達的方法以及形成轉子的方法 |
CN107617740A (zh) * | 2016-07-15 | 2018-01-23 | 日立金属株式会社 | 烧结体、其制造方法、冲压装置和树脂模制环 |
CN107617740B (zh) * | 2016-07-15 | 2022-02-15 | 日立金属株式会社 | 烧结体、其制造方法、冲压装置和树脂模制环 |
Also Published As
Publication number | Publication date |
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CN1211810C (zh) | 2005-07-20 |
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Application publication date: 20021113 Assignee: Beijing Jingci Magnet Co., Ltd. Assignor: Hitachi Metals Co., Ltd. Contract record no.: 2013990000374 Denomination of invention: Sintered ring magnet Granted publication date: 20050720 License type: Common License Record date: 20130703 Application publication date: 20021113 Assignee: Beijing Zhongke Sanhuan High-Tech Co., Ltd. Assignor: Hitachi Metals Co., Ltd. Contract record no.: 2013990000364 Denomination of invention: Sintered ring magnet Granted publication date: 20050720 License type: Common License Record date: 20130701 Application publication date: 20021113 Assignee: Antai Science and Technology Co., Ltd. Assignor: Hitachi Metals Co., Ltd. Contract record no.: 2013990000365 Denomination of invention: Sintered ring magnet Granted publication date: 20050720 License type: Common License Record date: 20130701 |
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Application publication date: 20021113 Assignee: Ningbo Yunsheng Co., Ltd. Assignor: Hitachi Metals Co., Ltd. Contract record no.: 2014990000031 Denomination of invention: Sintered ring magnet Granted publication date: 20050720 License type: Common License Record date: 20140114 |
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Application publication date: 20021113 Assignee: Hitachi metal ring Ci material (Nantong) Co. Ltd. Assignor: Hitachi Metals Contract record no.: 2017990000034 Denomination of invention: Sintered ring magnet Granted publication date: 20050720 License type: Common License Record date: 20170209 |
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CI03 | Correction of invention patent |
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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