JP7468009B2 - フェライト仮焼体、フェライト焼結磁石及びその製造方法 - Google Patents
フェライト仮焼体、フェライト焼結磁石及びその製造方法 Download PDFInfo
- Publication number
- JP7468009B2 JP7468009B2 JP2020043852A JP2020043852A JP7468009B2 JP 7468009 B2 JP7468009 B2 JP 7468009B2 JP 2020043852 A JP2020043852 A JP 2020043852A JP 2020043852 A JP2020043852 A JP 2020043852A JP 7468009 B2 JP7468009 B2 JP 7468009B2
- Authority
- JP
- Japan
- Prior art keywords
- sintered
- ferrite magnet
- calcined body
- sintered ferrite
- producing
- 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.)
- Active
Links
- 229910000859 α-Fe Inorganic materials 0.000 title claims description 152
- 238000004519 manufacturing process Methods 0.000 title claims description 31
- 239000000843 powder Substances 0.000 claims description 79
- 238000010304 firing Methods 0.000 claims description 44
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 40
- 238000000034 method Methods 0.000 claims description 38
- 230000008569 process Effects 0.000 claims description 33
- 238000005245 sintering Methods 0.000 claims description 33
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 32
- 239000002994 raw material Substances 0.000 claims description 28
- 238000001354 calcination Methods 0.000 claims description 26
- 238000000227 grinding Methods 0.000 claims description 21
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 20
- 235000010216 calcium carbonate Nutrition 0.000 claims description 20
- 238000000465 moulding Methods 0.000 claims description 19
- 229910052681 coesite Inorganic materials 0.000 claims description 16
- 229910052906 cristobalite Inorganic materials 0.000 claims description 16
- 239000000377 silicon dioxide Substances 0.000 claims description 16
- 235000012239 silicon dioxide Nutrition 0.000 claims description 16
- 229910052682 stishovite Inorganic materials 0.000 claims description 16
- 229910052905 tridymite Inorganic materials 0.000 claims description 16
- 238000010438 heat treatment Methods 0.000 claims description 12
- 229910052751 metal Inorganic materials 0.000 claims description 12
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 11
- 229910052742 iron Inorganic materials 0.000 claims description 10
- 229910052725 zinc Inorganic materials 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 description 16
- 239000011575 calcium Substances 0.000 description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 15
- 150000001875 compounds Chemical class 0.000 description 12
- 239000002002 slurry Substances 0.000 description 12
- 239000012071 phase Substances 0.000 description 10
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 9
- 238000002474 experimental method Methods 0.000 description 9
- 238000010298 pulverizing process Methods 0.000 description 9
- 229910020521 Co—Zn Inorganic materials 0.000 description 8
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 8
- 230000007423 decrease Effects 0.000 description 8
- 239000002612 dispersion medium Substances 0.000 description 8
- 229910004298 SiO 2 Inorganic materials 0.000 description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 7
- 239000001301 oxygen Substances 0.000 description 7
- 229910052760 oxygen Inorganic materials 0.000 description 7
- 239000002245 particle Substances 0.000 description 6
- 239000000654 additive Substances 0.000 description 5
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 5
- UBEWDCMIDFGDOO-UHFFFAOYSA-N cobalt(II,III) oxide Inorganic materials [O-2].[O-2].[O-2].[O-2].[Co+2].[Co+3].[Co+3] UBEWDCMIDFGDOO-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 5
- 230000005415 magnetization Effects 0.000 description 5
- -1 oxides Chemical class 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- XLOMVQKBTHCTTD-UHFFFAOYSA-N zinc oxide Inorganic materials [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 238000004904 shortening Methods 0.000 description 4
- 239000013078 crystal Substances 0.000 description 3
- 239000002270 dispersing agent Substances 0.000 description 3
- 150000004679 hydroxides Chemical class 0.000 description 3
- 239000007791 liquid phase Substances 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 229910002402 SrFe12O19 Inorganic materials 0.000 description 2
- 238000002441 X-ray diffraction Methods 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 150000001805 chlorine compounds Chemical class 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum oxide Inorganic materials [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- KTUFCUMIWABKDW-UHFFFAOYSA-N oxo(oxolanthaniooxy)lanthanum Chemical compound O=[La]O[La]=O KTUFCUMIWABKDW-UHFFFAOYSA-N 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000003746 solid phase reaction Methods 0.000 description 2
- LEDMRZGFZIAGGB-UHFFFAOYSA-L strontium carbonate Chemical compound [Sr+2].[O-]C([O-])=O LEDMRZGFZIAGGB-UHFFFAOYSA-L 0.000 description 2
- 229910000018 strontium carbonate Inorganic materials 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 229910018916 CoOOH Inorganic materials 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000003125 aqueous solvent Substances 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000004227 calcium gluconate Substances 0.000 description 1
- 229960004494 calcium gluconate Drugs 0.000 description 1
- 235000013927 calcium gluconate Nutrition 0.000 description 1
- NEEHYRZPVYRGPP-UHFFFAOYSA-L calcium;2,3,4,5,6-pentahydroxyhexanoate Chemical compound [Ca+2].OCC(O)C(O)C(O)C(O)C([O-])=O.OCC(O)C(O)C(O)C(O)C([O-])=O NEEHYRZPVYRGPP-UHFFFAOYSA-L 0.000 description 1
- ZJRWDIJRKKXMNW-UHFFFAOYSA-N carbonic acid;cobalt Chemical compound [Co].OC(O)=O ZJRWDIJRKKXMNW-UHFFFAOYSA-N 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 229910000428 cobalt oxide Inorganic materials 0.000 description 1
- 229910000001 cobalt(II) carbonate Inorganic materials 0.000 description 1
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(ii) oxide Chemical compound [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 description 1
- 238000007580 dry-mixing Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 229910052595 hematite Inorganic materials 0.000 description 1
- 239000011019 hematite Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- FBAFATDZDUQKNH-UHFFFAOYSA-M iron chloride Chemical compound [Cl-].[Fe] FBAFATDZDUQKNH-UHFFFAOYSA-M 0.000 description 1
- LIKBJVNGSGBSGK-UHFFFAOYSA-N iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Fe+3].[Fe+3] LIKBJVNGSGBSGK-UHFFFAOYSA-N 0.000 description 1
- NCNCGGDMXMBVIA-UHFFFAOYSA-L iron(ii) hydroxide Chemical compound [OH-].[OH-].[Fe+2] NCNCGGDMXMBVIA-UHFFFAOYSA-L 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000002609 medium Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910001172 neodymium magnet Inorganic materials 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920005646 polycarboxylate Polymers 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Landscapes
- Inorganic Compounds Of Heavy Metals (AREA)
- Hard Magnetic Materials (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019053308 | 2019-03-20 | ||
| JP2019053308 | 2019-03-20 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2020161815A JP2020161815A (ja) | 2020-10-01 |
| JP2020161815A5 JP2020161815A5 (enrdf_load_stackoverflow) | 2023-02-20 |
| JP7468009B2 true JP7468009B2 (ja) | 2024-04-16 |
Family
ID=72643680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2020043852A Active JP7468009B2 (ja) | 2019-03-20 | 2020-03-13 | フェライト仮焼体、フェライト焼結磁石及びその製造方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP7468009B2 (enrdf_load_stackoverflow) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7238917B2 (ja) * | 2021-03-19 | 2023-03-14 | 株式会社プロテリアル | フェライト仮焼体粉末及びフェライト焼結磁石の製造方法 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009246243A (ja) | 2008-03-31 | 2009-10-22 | Tdk Corp | フェライト焼結磁石 |
| JP2015020926A (ja) | 2013-07-18 | 2015-02-02 | 日立金属株式会社 | フェライト化合物 |
| JP2018160672A (ja) | 2017-03-23 | 2018-10-11 | 日立金属株式会社 | フェライト焼結磁石の製造方法及びフェライト焼結磁石 |
| WO2018216594A1 (ja) | 2017-05-24 | 2018-11-29 | 日立金属株式会社 | フェライト焼結磁石 |
-
2020
- 2020-03-13 JP JP2020043852A patent/JP7468009B2/ja active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009246243A (ja) | 2008-03-31 | 2009-10-22 | Tdk Corp | フェライト焼結磁石 |
| JP2015020926A (ja) | 2013-07-18 | 2015-02-02 | 日立金属株式会社 | フェライト化合物 |
| JP2018160672A (ja) | 2017-03-23 | 2018-10-11 | 日立金属株式会社 | フェライト焼結磁石の製造方法及びフェライト焼結磁石 |
| WO2018216594A1 (ja) | 2017-05-24 | 2018-11-29 | 日立金属株式会社 | フェライト焼結磁石 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2020161815A (ja) | 2020-10-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5873333B2 (ja) | フェライト焼結磁石の製造方法及びフェライト焼結磁石 | |
| JP7247467B2 (ja) | フェライト焼結磁石の製造方法及びフェライト焼結磁石 | |
| JP7468009B2 (ja) | フェライト仮焼体、フェライト焼結磁石及びその製造方法 | |
| JP7111150B2 (ja) | フェライト仮焼体、フェライト焼結磁石及びその製造方法 | |
| JP7238917B2 (ja) | フェライト仮焼体粉末及びフェライト焼結磁石の製造方法 | |
| JP6927404B1 (ja) | フェライト仮焼体、フェライト焼結磁石及びその製造方法 | |
| JP2020155609A (ja) | フェライト焼結磁石の製造方法 | |
| JP7468045B2 (ja) | フェライト仮焼体粉末、フェライト焼結磁石及びその製造方法 | |
| JP7396137B2 (ja) | フェライト仮焼体、フェライト焼結磁石及びその製造方法 | |
| JP7508967B2 (ja) | フェライト仮焼体、フェライト焼結磁石及びその製造方法 | |
| JP7639733B2 (ja) | フェライト仮焼体およびフェライト焼結磁石の製造方法 | |
| JP7287371B2 (ja) | フェライト仮焼体、フェライト焼結磁石及びその製造方法 | |
| KR102852221B1 (ko) | 페라이트 가소체, 페라이트 소결 자석, 페라이트 소결 자석의 제조 방법 | |
| KR102587856B1 (ko) | 페라이트 가소체 및 페라이트 소결 자석의 제조 방법 | |
| JP2024122839A (ja) | フェライト仮焼体、フェライト焼結磁石及びフェライト焼結磁石の製造方法 | |
| KR102386512B1 (ko) | 하소 페라이트, 및 페라이트 소결 자석 및 그 제조 방법 | |
| JP2025033920A (ja) | フェライト焼結磁石及びフェライト焼結磁石の製造方法 | |
| JP2024126609A (ja) | フェライト仮焼体、フェライト焼結磁石及びフェライト焼結磁石の製造方法 | |
| JP2024052568A (ja) | フェライト焼結磁石の製造方法 | |
| JP2022151842A (ja) | フェライト焼結磁石の製造方法 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20230210 |
|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20230213 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20231020 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20231031 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20231226 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20240305 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20240318 |
|
| R150 | Certificate of patent or registration of utility model |
Ref document number: 7468009 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |