JPH0315806B2 - - Google Patents
Info
- Publication number
- JPH0315806B2 JPH0315806B2 JP20256385A JP20256385A JPH0315806B2 JP H0315806 B2 JPH0315806 B2 JP H0315806B2 JP 20256385 A JP20256385 A JP 20256385A JP 20256385 A JP20256385 A JP 20256385A JP H0315806 B2 JPH0315806 B2 JP H0315806B2
- Authority
- JP
- Japan
- Prior art keywords
- regions
- arcuate
- region
- magnetic
- 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
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 44
- 239000000203 mixture Substances 0.000 claims description 37
- 229910052742 iron Inorganic materials 0.000 claims description 20
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 19
- 229910052796 boron Inorganic materials 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 14
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 claims description 13
- 229910052779 Neodymium Inorganic materials 0.000 claims description 12
- 229910052777 Praseodymium Inorganic materials 0.000 claims description 12
- PUDIUYLPXJFUGB-UHFFFAOYSA-N praseodymium atom Chemical compound [Pr] PUDIUYLPXJFUGB-UHFFFAOYSA-N 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 230000005389 magnetism Effects 0.000 claims description 5
- 238000007731 hot pressing Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 description 24
- 229910052761 rare earth metal Inorganic materials 0.000 description 13
- 150000002910 rare earth metals Chemical class 0.000 description 12
- 238000003825 pressing Methods 0.000 description 10
- 229910052723 transition metal Inorganic materials 0.000 description 10
- 150000003624 transition metals Chemical class 0.000 description 10
- 239000002245 particle Substances 0.000 description 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- 230000005347 demagnetization Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 230000005415 magnetization Effects 0.000 description 6
- 239000000047 product Substances 0.000 description 6
- 238000002074 melt spinning Methods 0.000 description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 3
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 3
- 229910052804 chromium Inorganic materials 0.000 description 3
- 239000011651 chromium Substances 0.000 description 3
- 229910017052 cobalt Inorganic materials 0.000 description 3
- 239000010941 cobalt Substances 0.000 description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 3
- 238000007596 consolidation process Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 239000000696 magnetic material Substances 0.000 description 3
- 229910052748 manganese Inorganic materials 0.000 description 3
- 239000011572 manganese Substances 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 235000019687 Lamb Nutrition 0.000 description 2
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- YPFNIPKMNMDDDB-UHFFFAOYSA-K 2-[2-[bis(carboxylatomethyl)amino]ethyl-(2-hydroxyethyl)amino]acetate;iron(3+) Chemical compound [Fe+3].OCCN(CC([O-])=O)CCN(CC([O-])=O)CC([O-])=O YPFNIPKMNMDDDB-UHFFFAOYSA-K 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052684 Cerium Inorganic materials 0.000 description 1
- 229910052692 Dysprosium Inorganic materials 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 229910052772 Samarium Inorganic materials 0.000 description 1
- 229910052771 Terbium Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 239000012300 argon atmosphere Substances 0.000 description 1
- 239000011230 binding agent Substances 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
- 230000007423 decrease Effects 0.000 description 1
- KBQHZAAAGSGFKK-UHFFFAOYSA-N dysprosium atom Chemical compound [Dy] KBQHZAAAGSGFKK-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 1
- 229910001004 magnetic alloy Inorganic materials 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000012768 molten material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910001172 neodymium magnet Inorganic materials 0.000 description 1
- 239000011236 particulate material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007712 rapid solidification Methods 0.000 description 1
- -1 rare earths Inorganic materials 0.000 description 1
- KZUNJOHGWZRPMI-UHFFFAOYSA-N samarium atom Chemical compound [Sm] KZUNJOHGWZRPMI-UHFFFAOYSA-N 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
- GZCRRIHWUXGPOV-UHFFFAOYSA-N terbium atom Chemical compound [Tb] GZCRRIHWUXGPOV-UHFFFAOYSA-N 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
- H01F1/04—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys
- H01F1/047—Alloys characterised by their composition
- H01F1/053—Alloys characterised by their composition containing rare earth metals
- H01F1/055—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
- H01F1/057—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
- H01F1/0571—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes
- H01F1/0575—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together
- H01F1/0576—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together pressed, e.g. hot working
Landscapes
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
- Hard Magnetic Materials (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US65062384A | 1984-09-14 | 1984-09-14 | |
| US650623 | 1984-09-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6174305A JPS6174305A (ja) | 1986-04-16 |
| JPH0315806B2 true JPH0315806B2 (enExample) | 1991-03-04 |
Family
ID=24609632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20256385A Granted JPS6174305A (ja) | 1984-09-14 | 1985-09-14 | 高保磁力領域と低保磁力領域とを持つホツト・プレスされた永久磁石 |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0174735B1 (enExample) |
| JP (1) | JPS6174305A (enExample) |
| AU (1) | AU580618B2 (enExample) |
| BR (1) | BR8504369A (enExample) |
| CA (1) | CA1244322A (enExample) |
| DE (1) | DE3584061D1 (enExample) |
| ES (1) | ES8707373A1 (enExample) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1244322A (en) * | 1984-09-14 | 1988-11-08 | Robert W. Lee | Hot pressed permanent magnet having high and low coercivity regions |
| US6136099A (en) * | 1985-08-13 | 2000-10-24 | Seiko Epson Corporation | Rare earth-iron series permanent magnets and method of preparation |
| US5125988A (en) * | 1987-03-02 | 1992-06-30 | Seiko Epson Corporation | Rare earth-iron system permanent magnet and process for producing the same |
| US5538565A (en) * | 1985-08-13 | 1996-07-23 | Seiko Epson Corporation | Rare earth cast alloy permanent magnets and methods of preparation |
| JP2530641B2 (ja) * | 1986-03-20 | 1996-09-04 | 日立金属株式会社 | 磁気異方性ボンド磁石、それに用いる磁粉及びその製造方法 |
| IT1206056B (it) * | 1986-06-20 | 1989-04-05 | Seiko Epson Corp | Procedimento per la preparazione di magneti permanenti e prodotto ottenuto |
| US4983232A (en) * | 1987-01-06 | 1991-01-08 | Hitachi Metals, Ltd. | Anisotropic magnetic powder and magnet thereof and method of producing same |
| KR900006533B1 (ko) * | 1987-01-06 | 1990-09-07 | 히다찌 긴조꾸 가부시끼가이샤 | 이방성 자성분말과 이의 자석 및 이의 제조방법 |
| US5213631A (en) * | 1987-03-02 | 1993-05-25 | Seiko Epson Corporation | Rare earth-iron system permanent magnet and process for producing the same |
| US4888506A (en) * | 1987-07-09 | 1989-12-19 | Hitachi Metals, Ltd. | Voice coil-type linear motor |
| JPH07105301B2 (ja) * | 1987-09-10 | 1995-11-13 | 日立金属株式会社 | 磁気異方性Ｎｄ―Ｆｅ―Ｂ磁石材の製法 |
| JPS6472502A (en) * | 1987-09-11 | 1989-03-17 | Hitachi Metals Ltd | Permanent magnet for accelerating particle beam |
| US4859410A (en) * | 1988-03-24 | 1989-08-22 | General Motors Corporation | Die-upset manufacture to produce high volume fractions of RE-Fe-B type magnetically aligned material |
| JP3037699B2 (ja) * | 1988-09-30 | 2000-04-24 | 日立金属株式会社 | 耐割れ性及び配向性を改善した温間加工磁石ならびにその製造方法 |
| US5098486A (en) * | 1989-05-23 | 1992-03-24 | Hitachi Metals, Ltd. | Magnetically anisotropic hotworked magnet and method of producing same |
| US4952251A (en) * | 1989-05-23 | 1990-08-28 | Hitachi Metals, Ltd. | Magnetically anisotropic hotworked magnet and method of producing same |
| JP5707934B2 (ja) * | 2010-12-27 | 2015-04-30 | トヨタ自動車株式会社 | 異方性永久磁石の製造方法 |
| JP6330438B2 (ja) * | 2014-04-09 | 2018-05-30 | 信越化学工業株式会社 | 希土類焼結磁石の製造方法 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CS213750B1 (en) * | 1979-08-03 | 1982-04-09 | Vaclav Landa | Method of making the anizotropic permanent magnets |
| DE3248846T1 (de) * | 1981-07-14 | 1983-07-07 | Hitachi Metals, Ltd., Tokyo | Verbundpermanentmagnet fuer die magnetische erregung und verfahren zu seiner herstellung |
| DE3379131D1 (en) * | 1982-09-03 | 1989-03-09 | Gen Motors Corp | Re-tm-b alloys, method for their production and permanent magnets containing such alloys |
| CA1216623A (en) * | 1983-05-09 | 1987-01-13 | John J. Croat | Bonded rare earth-iron magnets |
| CA1244322A (en) * | 1984-09-14 | 1988-11-08 | Robert W. Lee | Hot pressed permanent magnet having high and low coercivity regions |
-
1985
- 1985-07-12 CA CA000486721A patent/CA1244322A/en not_active Expired
- 1985-08-09 EP EP19850305656 patent/EP0174735B1/en not_active Expired
- 1985-08-09 DE DE8585305656T patent/DE3584061D1/de not_active Expired - Lifetime
- 1985-08-21 AU AU46487/85A patent/AU580618B2/en not_active Ceased
- 1985-09-10 BR BR8504369A patent/BR8504369A/pt not_active IP Right Cessation
- 1985-09-13 ES ES546960A patent/ES8707373A1/es not_active Expired
- 1985-09-14 JP JP20256385A patent/JPS6174305A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| AU580618B2 (en) | 1989-01-19 |
| ES8707373A1 (es) | 1987-07-16 |
| EP0174735A2 (en) | 1986-03-19 |
| EP0174735B1 (en) | 1991-09-11 |
| ES546960A0 (es) | 1987-07-16 |
| AU4648785A (en) | 1986-03-20 |
| DE3584061D1 (de) | 1991-10-17 |
| EP0174735A3 (en) | 1988-01-20 |
| CA1244322A (en) | 1988-11-08 |
| JPS6174305A (ja) | 1986-04-16 |
| BR8504369A (pt) | 1986-07-08 |
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