JPS6217841B2 - - Google Patents
Info
- Publication number
- JPS6217841B2 JPS6217841B2 JP55022590A JP2259080A JPS6217841B2 JP S6217841 B2 JPS6217841 B2 JP S6217841B2 JP 55022590 A JP55022590 A JP 55022590A JP 2259080 A JP2259080 A JP 2259080A JP S6217841 B2 JPS6217841 B2 JP S6217841B2
- Authority
- JP
- Japan
- Prior art keywords
- ferrite
- powder
- hour
- coercive force
- magnetic
- 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
- 229910000859 α-Fe Inorganic materials 0.000 claims description 56
- 239000006247 magnetic powder Substances 0.000 claims description 36
- 239000000203 mixture Substances 0.000 claims description 33
- 238000000034 method Methods 0.000 claims description 28
- 239000000843 powder Substances 0.000 claims description 27
- 239000002245 particle Substances 0.000 claims description 24
- 239000000126 substance Substances 0.000 claims description 20
- 230000004907 flux Effects 0.000 claims description 19
- 238000010298 pulverizing process Methods 0.000 claims description 11
- 239000002994 raw material Substances 0.000 claims description 10
- 238000000137 annealing Methods 0.000 claims description 9
- 238000010304 firing Methods 0.000 claims description 8
- 229910052788 barium Inorganic materials 0.000 claims description 7
- 229910052749 magnesium Inorganic materials 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 229910052712 strontium Inorganic materials 0.000 claims description 7
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 229910052748 manganese Inorganic materials 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 239000008188 pellet Substances 0.000 claims description 6
- 238000001354 calcination Methods 0.000 claims description 5
- 229910052745 lead Inorganic materials 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 229910052759 nickel Inorganic materials 0.000 claims description 5
- 229910052725 zinc Inorganic materials 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000005303 weighing Methods 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 23
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 22
- 239000011787 zinc oxide Substances 0.000 description 9
- AYJRCSIUFZENHW-UHFFFAOYSA-L barium carbonate Chemical compound [Ba+2].[O-]C([O-])=O AYJRCSIUFZENHW-UHFFFAOYSA-L 0.000 description 8
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 6
- 229910052596 spinel Inorganic materials 0.000 description 6
- 239000011029 spinel Substances 0.000 description 6
- 229910000428 cobalt oxide Inorganic materials 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 230000007423 decrease Effects 0.000 description 4
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical group O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 4
- 239000010949 copper Substances 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 230000005415 magnetization Effects 0.000 description 3
- 239000011572 manganese Substances 0.000 description 3
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(ii) oxide Chemical compound [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- XMWCXZJXESXBBY-UHFFFAOYSA-L manganese(ii) carbonate Chemical compound [Mn+2].[O-]C([O-])=O XMWCXZJXESXBBY-UHFFFAOYSA-L 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910000018 strontium carbonate Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011362 coarse particle Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- BDAGIHXWWSANSR-NJFSPNSNSA-N hydroxyformaldehyde Chemical compound O[14CH]=O BDAGIHXWWSANSR-NJFSPNSNSA-N 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 235000006748 manganese carbonate Nutrition 0.000 description 1
- 239000011656 manganese carbonate Substances 0.000 description 1
- 229910000016 manganese(II) carbonate Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- 229910000480 nickel oxide Inorganic materials 0.000 description 1
- YEXPOXQUZXUXJW-UHFFFAOYSA-N oxolead Chemical compound [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 description 1
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 description 1
- 229910000889 permalloy Inorganic materials 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000011802 pulverized particle Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 229910000702 sendust Inorganic materials 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- LEDMRZGFZIAGGB-UHFFFAOYSA-L strontium carbonate Chemical compound [Sr+2].[O-]C([O-])=O LEDMRZGFZIAGGB-UHFFFAOYSA-L 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Magnetic Ceramics (AREA)
- Paints Or Removers (AREA)
- Magnetic Record Carriers (AREA)
- Hard Magnetic Materials (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2259080A JPS56118305A (en) | 1980-02-25 | 1980-02-25 | Manufacture of magnetic powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2259080A JPS56118305A (en) | 1980-02-25 | 1980-02-25 | Manufacture of magnetic powder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56118305A JPS56118305A (en) | 1981-09-17 |
| JPS6217841B2 true JPS6217841B2 (US08124630-20120228-C00152.png) | 1987-04-20 |
Family
ID=12087057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2259080A Granted JPS56118305A (en) | 1980-02-25 | 1980-02-25 | Manufacture of magnetic powder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56118305A (US08124630-20120228-C00152.png) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8153097B2 (en) | 2007-10-02 | 2012-04-10 | Tdk Corporation | Method for manufacturing ferrite powder, ferrite powder, and magnetic recording medium |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60211904A (ja) * | 1984-04-06 | 1985-10-24 | Ricoh Co Ltd | 金属酸化物磁性体及び磁性膜 |
| JPH0719400B2 (ja) * | 1984-07-21 | 1995-03-06 | 株式会社リコー | 光磁気記録媒体 |
| JPS62139124A (ja) * | 1985-12-12 | 1987-06-22 | Toda Kogyo Corp | 磁気記録用板状Ｂａフエライト微粒子粉末及びその製造法 |
| DE3888071T2 (de) * | 1987-04-21 | 1994-07-07 | Ishihara Sangyo Kaisha | Feines ferromagnetisches puder für magnetische speicher. |
| US5358660A (en) * | 1988-01-14 | 1994-10-25 | Showa Denko Kabushiki Kaisha | Magnetic particles for perpendicular magnetic recording |
-
1980
- 1980-02-25 JP JP2259080A patent/JPS56118305A/ja active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8153097B2 (en) | 2007-10-02 | 2012-04-10 | Tdk Corporation | Method for manufacturing ferrite powder, ferrite powder, and magnetic recording medium |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56118305A (en) | 1981-09-17 |
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