RU97102098A - COMPOSITION FOR MANUFACTURE OF ANISOTROPIC MAGNETS AND METHOD FOR PRODUCING THEM - Google Patents
COMPOSITION FOR MANUFACTURE OF ANISOTROPIC MAGNETS AND METHOD FOR PRODUCING THEMInfo
- Publication number
- RU97102098A RU97102098A RU97102098/02A RU97102098A RU97102098A RU 97102098 A RU97102098 A RU 97102098A RU 97102098/02 A RU97102098/02 A RU 97102098/02A RU 97102098 A RU97102098 A RU 97102098A RU 97102098 A RU97102098 A RU 97102098A
- Authority
- RU
- Russia
- Prior art keywords
- castor oil
- composition
- polyamide
- calcium
- followed
- Prior art date
Links
- 239000000203 mixture Substances 0.000 title claims 5
- 238000004519 manufacturing process Methods 0.000 title claims 3
- 239000004359 castor oil Substances 0.000 claims 4
- 235000019438 castor oil Nutrition 0.000 claims 4
- BJQHLKABXJIVAM-UHFFFAOYSA-N Bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 claims 3
- CJZGTCYPCWQAJB-UHFFFAOYSA-L Calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims 3
- 239000004952 Polyamide Substances 0.000 claims 3
- 239000003818 cinder Substances 0.000 claims 3
- KREXGRSOTUKPLX-UHFFFAOYSA-N octadecanoic acid;zinc Chemical compound [Zn].CCCCCCCCCCCCCCCCCC(O)=O.CCCCCCCCCCCCCCCCCC(O)=O KREXGRSOTUKPLX-UHFFFAOYSA-N 0.000 claims 3
- 229920002647 polyamide Polymers 0.000 claims 3
- 239000011528 polyamide (building material) Substances 0.000 claims 3
- NIFIFKQPDTWWGU-UHFFFAOYSA-N pyrite Chemical compound [Fe+2].[S-][S-] NIFIFKQPDTWWGU-UHFFFAOYSA-N 0.000 claims 3
- 229910052683 pyrite Inorganic materials 0.000 claims 3
- 239000011028 pyrite Substances 0.000 claims 3
- 150000001844 chromium Chemical class 0.000 claims 2
- 238000007580 dry-mixing Methods 0.000 claims 2
- 239000006247 magnetic powder Substances 0.000 claims 2
- 238000000465 moulding Methods 0.000 claims 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N silicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims 2
- 229910001047 Hard ferrite Inorganic materials 0.000 claims 1
- 241000343232 Oia Species 0.000 claims 1
- 239000002253 acid Substances 0.000 claims 1
- 150000008043 acidic salts Chemical class 0.000 claims 1
- 230000002378 acidificating Effects 0.000 claims 1
- 238000000137 annealing Methods 0.000 claims 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims 1
- 229910052804 chromium Inorganic materials 0.000 claims 1
- 239000011651 chromium Substances 0.000 claims 1
- 239000000155 melt Substances 0.000 claims 1
- 239000000843 powder Substances 0.000 claims 1
- 150000004760 silicates Chemical class 0.000 claims 1
Claims (1)
Магнитный порошок - 87-92,5
Стеарат кальция или цинка - 0,2-0,5
Касторовое масло - 0,2-0,5
Диоктилфталат - 0,15-0,3
Кислая соль хрома - 0,2-1,05
Слоистый силикат - 0,2-1,0
Пиритовый огарок - 0,1-1,0
Полиамид - Остальное
2. Способ получения анизотропных магнитов по п. 1, включающий сухое смешение компонентов в смесителе в течение 10-15 минут с последующим формованием методом литья в магнитном поле напряженностью 10000-12000 Э, отличающийся тем, что кислую соль хрома вводят в порошок магнитотвердого феррита с общей формулой MO•nFe2O3(M = Sr, Ba), а n = 4,4-6,2 с удельной поверхностью 0,4-0,8 м2/г путем сухого смешения с последующим отжигом смеси, затем тонкомолотый слоистый силикат, стеарат кальция или цинка, пиритовый огарок, полиамид и 50% касторового масла от общего его содержания вводят в отожженную смесь, а оставшиеся 50% касторового масла и диоктилфталат вводят в расплав композиции с последующим формованием магнитов при температуре 230-240oC.1. Composition for the manufacture of anisotropic magnets, including magnetic powder, calcium or zinc stearate, castor oil, polyamide, characterized in that it additionally contains dioctyl phthalate, an acidic chromium salt, layered silicate and pyrite cinder in the following ratio, wt.%:
Magnetic powder - 87-92.5
Calcium or Zinc Stearate - 0.2-0.5
Castor oil - 0.2-0.5
Dioctyl phthalate - 0.15-0.3
Acid chromium salt - 0.2-1.05
Laminated Silicate - 0.2-1.0
Pyrite cinder - 0.1-1.0
Polyamide - Else
2. The method of producing anisotropic magnets according to claim 1, comprising dry mixing the components in the mixer for 10-15 minutes, followed by molding by a magnetic field with a strength of 10000-12000 Oe, characterized in that the acidic salt of chromium is introduced into a powder of magnetically hard ferrite with the general formula MO • nFe 2 O 3 (M = Sr, Ba), and n = 4.4-6.2 with a specific surface area of 0.4-0.8 m 2 / g by dry mixing followed by annealing of the mixture, then finely ground layered silicate, calcium or zinc stearate, pyrite cinder, polyamide and 50% of castor oil from its total content Oia is introduced into the annealed mixture, and the remaining 50% of castor oil and dioctyl phthalate are introduced into the melt of the composition, followed by molding of magnets at a temperature of 230-240 o C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU97102098A RU2111571C1 (en) | 1997-02-18 | 1997-02-18 | Composition and method for manufacturing anisotropic magnets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU97102098A RU2111571C1 (en) | 1997-02-18 | 1997-02-18 | Composition and method for manufacturing anisotropic magnets |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RU2111571C1 RU2111571C1 (en) | 1998-05-20 |
| RU97102098A true RU97102098A (en) | 1998-10-10 |
Family
ID=20189847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RU97102098A RU2111571C1 (en) | 1997-02-18 | 1997-02-18 | Composition and method for manufacturing anisotropic magnets |
Country Status (1)
| Country | Link |
|---|---|
| RU (1) | RU2111571C1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4820312B2 (en) | 2006-03-31 | 2011-11-24 | Ｄｏｗａエレクトロニクス株式会社 | Ferrite magnetic powder for bonded magnet, method for producing the same, and bonded magnet |
-
1997
- 1997-02-18 RU RU97102098A patent/RU2111571C1/en active
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