DE2140320A1 - Flexible Permanentmagnete und Verfahren zur Herstellung von Bariumferritteilchen für Magnete - Google Patents
Flexible Permanentmagnete und Verfahren zur Herstellung von Bariumferritteilchen für MagneteInfo
- Publication number
- DE2140320A1 DE2140320A1 DE19712140320 DE2140320A DE2140320A1 DE 2140320 A1 DE2140320 A1 DE 2140320A1 DE 19712140320 DE19712140320 DE 19712140320 DE 2140320 A DE2140320 A DE 2140320A DE 2140320 A1 DE2140320 A1 DE 2140320A1
- Authority
- DE
- Germany
- Prior art keywords
- particles
- percent
- magnets
- stage
- ferrite particles
- 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.)
- Pending
Links
- 239000002245 particle Substances 0.000 title claims description 33
- AJCDFVKYMIUXCR-UHFFFAOYSA-N oxobarium;oxo(oxoferriooxy)iron Chemical compound [Ba]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O AJCDFVKYMIUXCR-UHFFFAOYSA-N 0.000 title claims description 12
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- 229910000859 α-Fe Inorganic materials 0.000 claims description 26
- 238000000227 grinding Methods 0.000 claims description 13
- 239000011159 matrix material Substances 0.000 claims description 9
- 239000000047 product Substances 0.000 claims description 8
- PUZPDOWCWNUUKD-UHFFFAOYSA-M sodium fluoride Chemical compound [F-].[Na+] PUZPDOWCWNUUKD-UHFFFAOYSA-M 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- 238000000137 annealing Methods 0.000 claims description 6
- 238000001354 calcination Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- QVQLCTNNEUAWMS-UHFFFAOYSA-N barium oxide Chemical compound [Ba]=O QVQLCTNNEUAWMS-UHFFFAOYSA-N 0.000 claims description 4
- 230000004907 flux Effects 0.000 claims description 4
- 230000006698 induction Effects 0.000 claims description 4
- 235000013024 sodium fluoride Nutrition 0.000 claims description 4
- 239000011775 sodium fluoride Substances 0.000 claims description 4
- 239000011260 aqueous acid Substances 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 229910052788 barium Inorganic materials 0.000 claims description 2
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 claims description 2
- 239000011230 binding agent Substances 0.000 claims description 2
- 239000007795 chemical reaction product Substances 0.000 claims description 2
- 239000008240 homogeneous mixture Substances 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 229910052712 strontium Inorganic materials 0.000 claims description 2
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- FDQGNLOWMMVRQL-UHFFFAOYSA-N Allobarbital Chemical compound C=CCC1(CC=C)C(=O)NC(=O)NC1=O FDQGNLOWMMVRQL-UHFFFAOYSA-N 0.000 claims 1
- 238000003801 milling Methods 0.000 claims 1
- 230000004048 modification Effects 0.000 claims 1
- 238000012986 modification Methods 0.000 claims 1
- 239000000843 powder Substances 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 238000010306 acid treatment Methods 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 4
- 229920001971 elastomer Polymers 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 229920001169 thermoplastic Polymers 0.000 description 4
- 235000021355 Stearic acid Nutrition 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 3
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 3
- 239000008188 pellet Substances 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000008117 stearic acid Substances 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- 230000004580 weight loss Effects 0.000 description 3
- 239000004952 Polyamide Substances 0.000 description 2
- 239000002775 capsule Substances 0.000 description 2
- 150000004659 dithiocarbamates Chemical class 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000005415 magnetization Effects 0.000 description 2
- 239000012188 paraffin wax Substances 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 229920003211 cis-1,4-polyisoprene Polymers 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- ZCRZCMUDOWDGOB-UHFFFAOYSA-N ethanesulfonimidic acid Chemical compound CCS(N)(=O)=O ZCRZCMUDOWDGOB-UHFFFAOYSA-N 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 229920005570 flexible polymer Polymers 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000002655 kraft paper Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
- 230000037303 wrinkles Effects 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
- H01F1/10—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 non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure
- H01F1/11—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 non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure in the form of particles
- H01F1/113—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 non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure in the form of particles in a bonding agent
- H01F1/117—Flexible bodies
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/26—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on ferrites
- C04B35/2683—Other ferrites containing alkaline earth metals or lead
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Hard Magnetic Materials (AREA)
- Compounds Of Iron (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US6329870A | 1970-08-12 | 1970-08-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2140320A1 true DE2140320A1 (de) | 1972-10-19 |
Family
ID=22048282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19712140320 Pending DE2140320A1 (de) | 1970-08-12 | 1971-08-11 | Flexible Permanentmagnete und Verfahren zur Herstellung von Bariumferritteilchen für Magnete |
Country Status (8)
| Country | Link |
|---|---|
| BE (1) | BE771171A (cs) |
| CA (1) | CA961257A (cs) |
| DE (1) | DE2140320A1 (cs) |
| ES (1) | ES393851A1 (cs) |
| FR (1) | FR2104251A5 (cs) |
| GB (1) | GB1354598A (cs) |
| NL (1) | NL7110643A (cs) |
| SE (1) | SE362979B (cs) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2401934A1 (de) * | 1974-01-16 | 1975-07-31 | Fuji Electrochemical Co Ltd | Verfahren zum erzeugen eines anisotropen ferritmagneten |
| US4057606A (en) * | 1972-07-14 | 1977-11-08 | Fuji Electrochemical Co., Ltd. | Method of producing anisotropic ferrite magnet |
| EP0102819A1 (en) * | 1982-08-31 | 1984-03-14 | Toda Kogyo Corp. | Barium ferrite particles for magnetic recording media |
| DE19910182B4 (de) * | 1999-03-08 | 2013-12-12 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Verfahren zur Herstellung und Magnetisierung permanentmagnetischer Folien |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4200547A (en) | 1979-01-02 | 1980-04-29 | Minnesota Mining And Manufacturing Company | Matrix-bonded permanent magnet having highly aligned magnetic particles |
| NL7907717A (nl) * | 1979-10-19 | 1981-04-22 | Philips Nv | Inrichting voor het weergeven van gekleurde beelden. |
| US4881988A (en) * | 1987-11-16 | 1989-11-21 | Rjf International Corporation | Novel flexible magnet for use in small dc motors |
-
1971
- 1971-08-02 NL NL7110643A patent/NL7110643A/xx unknown
- 1971-08-02 SE SE09856/71A patent/SE362979B/xx unknown
- 1971-08-02 ES ES393851A patent/ES393851A1/es not_active Expired
- 1971-08-11 CA CA120,335A patent/CA961257A/en not_active Expired
- 1971-08-11 BE BE771171A patent/BE771171A/xx unknown
- 1971-08-11 FR FR7129430A patent/FR2104251A5/fr not_active Expired
- 1971-08-11 GB GB3781471A patent/GB1354598A/en not_active Expired
- 1971-08-11 DE DE19712140320 patent/DE2140320A1/de active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4057606A (en) * | 1972-07-14 | 1977-11-08 | Fuji Electrochemical Co., Ltd. | Method of producing anisotropic ferrite magnet |
| DE2401934A1 (de) * | 1974-01-16 | 1975-07-31 | Fuji Electrochemical Co Ltd | Verfahren zum erzeugen eines anisotropen ferritmagneten |
| EP0102819A1 (en) * | 1982-08-31 | 1984-03-14 | Toda Kogyo Corp. | Barium ferrite particles for magnetic recording media |
| DE19910182B4 (de) * | 1999-03-08 | 2013-12-12 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Verfahren zur Herstellung und Magnetisierung permanentmagnetischer Folien |
Also Published As
| Publication number | Publication date |
|---|---|
| GB1354598A (en) | 1974-06-05 |
| CA961257A (en) | 1975-01-21 |
| SE362979B (cs) | 1973-12-27 |
| FR2104251A5 (cs) | 1972-04-14 |
| NL7110643A (cs) | 1972-02-15 |
| ES393851A1 (es) | 1973-09-16 |
| BE771171A (fr) | 1972-02-11 |
| AU3218371A (en) | 1973-02-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE1592470A1 (de) | Verfahren zur Herstellung eines spinellartigen Ferritpulvers,sowie nach diesem Verfahren hergestellte Ferritteilchen | |
| DE2149698A1 (de) | Biegsamer Dauermagnet und Verfahren zu dessen Herstellung | |
| DE2420407A1 (de) | Formkoerper und verfahren zu deren herstellung | |
| DE3021218C2 (de) | Trockenes Verfahren zur Herstellung von dem hexagonalen System angehörendem Ferrit | |
| DE2140320A1 (de) | Flexible Permanentmagnete und Verfahren zur Herstellung von Bariumferritteilchen für Magnete | |
| WO2000009599A1 (de) | Verbundmaterial mit polymermatrix und anionisch interkalierten schichtförmigen doppelhydroxiden | |
| DE4018430A1 (de) | Kugelfoermige koernchen aus oxiden der seltenen erden und verfahren zu deren herstellung | |
| DE2738830C3 (de) | Verfahren zur Herstellung von dem hexagonalen System angehörendem Ferritpulver, dessen Weiterverarbeitung und Verwendung des ggf. weiterverarbeitenden Ferritpulvers zur Gewinnung eines Plastik/ Ferrit-Kompositmagneten | |
| EP0203470B1 (de) | Verfahren zur Herstellung feinteiliger und nadelförmiger hexagonaler Ferrite sowie ihre Verwendung zur Herstellung magnetischer Aufzeichnungsträger und Plastoferrite | |
| DE1948114A1 (de) | Verfahren zum Herstellen von Bariumferrit | |
| DE2401029A1 (de) | Verfahren zur herstellung von ferriten | |
| DE2235383B2 (de) | Ferromagnetische nadeiförmige Teilchen für ein Aufzeichnungssystem | |
| DE2604754A1 (de) | Reibstoff | |
| EP0164533B1 (de) | Verfahren zur Herstellung feinteiliger, nadelförmiger und hochkoerzitiver hexagonaler Ferrite | |
| DE2140319C3 (de) | Flexible Permanentmagnete | |
| EP0093966B1 (de) | Verfahren zur Herstellung einer Magnetdispersion | |
| DE3808861A1 (de) | Feinteilige kaliumhaltige magnetische hexaferritpigmente aus faellungsmagnetit, verfahren zur ihrer herstellung und deren verwendung | |
| DE1922409A1 (de) | Verfahren zur Herstellung von ferromagnetischem Chromdioxid | |
| DE2335522A1 (de) | Reaktionsbettmaterial fuer die herstellung von kuenstlichem mineralwasser und verfahren zur herstellung dieses materials | |
| DE1471046B1 (de) | Mehrphasiger permanentmagnetischer Werkstoff sowie Verfahren zu dessen Herstellung | |
| DE2013617C3 (de) | Verfahren zur Herstellung eines dauermagnetisierbaren Eisen-Mischoxids | |
| AT165288B (de) | Verfahren zur Herstellung von permanenten Magneten auf Oxydgrundlage | |
| AT150915B (de) | Dauermagnet aus zerkleinertem Werkstoff. | |
| DE1267840C2 (de) | Antistatische ausruestung von polymeren plastischen massen | |
| CH382315A (de) | Verfahren zur Herstellung eines Körpers, aus ferromagnetischem Material mit einer nichtkubischen Kristallstruktur, dessen Einkristalle eine Vorzugsebene der Magnetisierung aufweisen |