JPH0576521B2 - - Google Patents
Info
- Publication number
- JPH0576521B2 JPH0576521B2 JP60110793A JP11079385A JPH0576521B2 JP H0576521 B2 JPH0576521 B2 JP H0576521B2 JP 60110793 A JP60110793 A JP 60110793A JP 11079385 A JP11079385 A JP 11079385A JP H0576521 B2 JPH0576521 B2 JP H0576521B2
- Authority
- JP
- Japan
- Prior art keywords
- permanent magnet
- atomic
- less
- atom
- 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
Links
- 239000000463 material Substances 0.000 claims description 27
- 239000010410 layer Substances 0.000 claims description 16
- 239000000843 powder Substances 0.000 claims description 15
- 239000010409 thin film Substances 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 229910052777 Praseodymium Inorganic materials 0.000 claims description 6
- 229910052779 Neodymium Inorganic materials 0.000 claims description 5
- 229910052772 Samarium Inorganic materials 0.000 claims description 5
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical group [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 claims description 4
- 239000002344 surface layer Substances 0.000 claims description 4
- 229910052692 Dysprosium Inorganic materials 0.000 claims description 3
- 229910052691 Erbium Inorganic materials 0.000 claims description 3
- 229910052693 Europium Inorganic materials 0.000 claims description 3
- 229910052688 Gadolinium Inorganic materials 0.000 claims description 3
- 229910052775 Thulium Inorganic materials 0.000 claims description 3
- 229910052769 Ytterbium Inorganic materials 0.000 claims description 3
- 229910052746 lanthanum Inorganic materials 0.000 claims description 3
- 229910052727 yttrium Inorganic materials 0.000 claims description 3
- 229910052684 Cerium Inorganic materials 0.000 claims description 2
- 229910052765 Lutetium Inorganic materials 0.000 claims description 2
- 102100036439 Amyloid beta precursor protein binding family B member 1 Human genes 0.000 claims 1
- 101000928670 Homo sapiens Amyloid beta precursor protein binding family B member 1 Proteins 0.000 claims 1
- 238000005260 corrosion Methods 0.000 description 15
- 230000007797 corrosion Effects 0.000 description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 14
- 238000000227 grinding Methods 0.000 description 10
- 229910052761 rare earth metal Inorganic materials 0.000 description 10
- 230000004907 flux Effects 0.000 description 8
- 239000007789 gas Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 238000005520 cutting process Methods 0.000 description 6
- 230000006866 deterioration Effects 0.000 description 6
- 238000007747 plating Methods 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- 230000007423 decrease Effects 0.000 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 150000002910 rare earth metals Chemical class 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000006467 substitution reaction Methods 0.000 description 3
- 230000003746 surface roughness Effects 0.000 description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 2
- 229910001047 Hard ferrite Inorganic materials 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 238000007733 ion plating Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 229910052580 B4C Inorganic materials 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052689 Holmium Inorganic materials 0.000 description 1
- -1 Nd In this case Chemical class 0.000 description 1
- 241000316887 Saissetia oleae Species 0.000 description 1
- 239000003929 acidic solution Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 229910000828 alnico Inorganic materials 0.000 description 1
- JZQOJFLIJNRDHK-CMDGGOBGSA-N alpha-irone Chemical compound CC1CC=C(C)C(\C=C\C(C)=O)C1(C)C JZQOJFLIJNRDHK-CMDGGOBGSA-N 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- INAHAJYZKVIDIZ-UHFFFAOYSA-N boron carbide Chemical compound B12B3B4C32B41 INAHAJYZKVIDIZ-UHFFFAOYSA-N 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000007772 electroless plating Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000002223 garnet Substances 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010301 surface-oxidation reaction Methods 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 238000007738 vacuum evaporation Methods 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Landscapes
- Powder Metallurgy (AREA)
- Physical Vapour Deposition (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
- Hard Magnetic Materials (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60110793A JPS61270308A (ja) | 1985-05-23 | 1985-05-23 | 永久磁石材料の製造方法 |
| CN85109695A CN1007847B (zh) | 1984-12-24 | 1985-12-24 | 制造具有改进耐蚀性磁铁的方法 |
| DE8585116598T DE3584243D1 (de) | 1984-12-24 | 1985-12-27 | Verfahren zur herstellung von dauermagneten und dauermagnet. |
| EP85116598A EP0190461B1 (en) | 1984-12-24 | 1985-12-27 | Process for producing permanent magnets and permanent magnet |
| US06/818,238 US4837114A (en) | 1984-12-24 | 1986-01-13 | Process for producing magnets having improved corrosion resistance |
| US07/360,101 US5089066A (en) | 1984-12-24 | 1989-06-01 | Magnets having improved corrosion resistance |
| US07/740,442 US5316595A (en) | 1984-12-24 | 1991-08-05 | Process for producing magnets having improved corrosion resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60110793A JPS61270308A (ja) | 1985-05-23 | 1985-05-23 | 永久磁石材料の製造方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61270308A JPS61270308A (ja) | 1986-11-29 |
| JPH0576521B2 true JPH0576521B2 (enrdf_load_stackoverflow) | 1993-10-22 |
Family
ID=14544774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60110793A Granted JPS61270308A (ja) | 1984-12-24 | 1985-05-23 | 永久磁石材料の製造方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61270308A (enrdf_load_stackoverflow) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11307328A (ja) * | 1998-04-16 | 1999-11-05 | Sumitomo Special Metals Co Ltd | 耐食性永久磁石およびその製造方法 |
| CN1938798B (zh) | 2004-03-26 | 2011-04-27 | Tdk株式会社 | 稀土类磁体及其制造方法、以及多层体的制造方法 |
-
1985
- 1985-05-23 JP JP60110793A patent/JPS61270308A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61270308A (ja) | 1986-11-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| S533 | Written request for registration of change of name |
Free format text: JAPANESE INTERMEDIATE CODE: R313533 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| EXPY | Cancellation because of completion of term |