JPS58169902A - 磁気記録用磁性粉の製造方法 - Google Patents
磁気記録用磁性粉の製造方法Info
- Publication number
- JPS58169902A JPS58169902A JP57051399A JP5139982A JPS58169902A JP S58169902 A JPS58169902 A JP S58169902A JP 57051399 A JP57051399 A JP 57051399A JP 5139982 A JP5139982 A JP 5139982A JP S58169902 A JPS58169902 A JP S58169902A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- ferrite
- powder
- magnetic recording
- fe2o3
- 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.)
- Granted
Links
- 239000006247 magnetic powder Substances 0.000 title claims description 15
- 229910000859 α-Fe Inorganic materials 0.000 claims abstract description 26
- 239000000203 mixture Substances 0.000 claims abstract description 12
- 239000010419 fine particle Substances 0.000 claims abstract description 7
- 239000002245 particle Substances 0.000 claims description 22
- 239000000463 material Substances 0.000 claims description 8
- 239000011521 glass Substances 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000011159 matrix material Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 2
- 238000007496 glass forming Methods 0.000 claims 1
- 239000000126 substance Substances 0.000 claims 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract description 12
- 239000000843 powder Substances 0.000 abstract description 9
- 238000005299 abrasion Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 3
- 239000000470 constituent Substances 0.000 abstract 3
- 229910003145 α-Fe2O3 Inorganic materials 0.000 abstract 2
- 239000011812 mixed powder Substances 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 6
- 239000003973 paint Substances 0.000 description 5
- 239000002253 acid Substances 0.000 description 4
- AYTAKQFHWFYBMA-UHFFFAOYSA-N chromium dioxide Chemical compound O=[Cr]=O AYTAKQFHWFYBMA-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000005415 magnetization Effects 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 241000218645 Cedrus Species 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- IIZPXYDJLKNOIY-JXPKJXOSSA-N 1-palmitoyl-2-arachidonoyl-sn-glycero-3-phosphocholine Chemical compound CCCCCCCCCCCCCCCC(=O)OC[C@H](COP([O-])(=O)OCC[N+](C)(C)C)OC(=O)CCC\C=C/C\C=C/C\C=C/C\C=C/CCCCC IIZPXYDJLKNOIY-JXPKJXOSSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- ZJRWDIJRKKXMNW-UHFFFAOYSA-N carbonic acid;cobalt Chemical compound [Co].OC(O)=O ZJRWDIJRKKXMNW-UHFFFAOYSA-N 0.000 description 1
- 229920006026 co-polymeric resin Polymers 0.000 description 1
- 229910000001 cobalt(II) carbonate Inorganic materials 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000000787 lecithin Substances 0.000 description 1
- 229940067606 lecithin Drugs 0.000 description 1
- 235000010445 lecithin Nutrition 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 210000002784 stomach Anatomy 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/62—Record carriers characterised by the selection of the material
- G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
- G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
- G11B5/706—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material
- G11B5/70626—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material containing non-metallic substances
- G11B5/70642—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material containing non-metallic substances iron oxides
- G11B5/70678—Ferrites
Landscapes
- Compounds Of Iron (AREA)
- Paints Or Removers (AREA)
- Magnetic Record Carriers (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
- Hard Magnetic Materials (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57051399A JPS58169902A (ja) | 1982-03-31 | 1982-03-31 | 磁気記録用磁性粉の製造方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57051399A JPS58169902A (ja) | 1982-03-31 | 1982-03-31 | 磁気記録用磁性粉の製造方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58169902A true JPS58169902A (ja) | 1983-10-06 |
| JPH0341964B2 JPH0341964B2 (enrdf_load_stackoverflow) | 1991-06-25 |
Family
ID=12885860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57051399A Granted JPS58169902A (ja) | 1982-03-31 | 1982-03-31 | 磁気記録用磁性粉の製造方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58169902A (enrdf_load_stackoverflow) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7132164B2 (en) | 2004-06-21 | 2006-11-07 | Fuji Photo Film Co., Ltd. | Hexagonal ferrite magnetic powder, method for producing the same and magnetic recording medium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56125219A (en) * | 1980-03-07 | 1981-10-01 | Toshiba Corp | Manufacture of fine-particle and hexagonol ferrite |
| JPS56155022A (en) * | 1980-04-24 | 1981-12-01 | Toshiba Corp | Preparation of magnetic powder |
| JPS56169128A (en) * | 1980-05-27 | 1981-12-25 | Toshiba Corp | Manufacture of magnetic powder for magnetic recording |
-
1982
- 1982-03-31 JP JP57051399A patent/JPS58169902A/ja active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56125219A (en) * | 1980-03-07 | 1981-10-01 | Toshiba Corp | Manufacture of fine-particle and hexagonol ferrite |
| JPS56155022A (en) * | 1980-04-24 | 1981-12-01 | Toshiba Corp | Preparation of magnetic powder |
| JPS56169128A (en) * | 1980-05-27 | 1981-12-25 | Toshiba Corp | Manufacture of magnetic powder for magnetic recording |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7132164B2 (en) | 2004-06-21 | 2006-11-07 | Fuji Photo Film Co., Ltd. | Hexagonal ferrite magnetic powder, method for producing the same and magnetic recording medium |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0341964B2 (enrdf_load_stackoverflow) | 1991-06-25 |
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