JPH038015B2 - - Google Patents
Info
- Publication number
- JPH038015B2 JPH038015B2 JP56028487A JP2848781A JPH038015B2 JP H038015 B2 JPH038015 B2 JP H038015B2 JP 56028487 A JP56028487 A JP 56028487A JP 2848781 A JP2848781 A JP 2848781A JP H038015 B2 JPH038015 B2 JP H038015B2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic powder
- magnetic
- tape
- surface roughness
- powder
- 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
- 239000006247 magnetic powder Substances 0.000 claims description 75
- 229910045601 alloy Inorganic materials 0.000 claims description 55
- 239000000956 alloy Substances 0.000 claims description 55
- 230000003746 surface roughness Effects 0.000 claims description 34
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 13
- 238000000576 coating method Methods 0.000 claims description 13
- 239000011248 coating agent Substances 0.000 claims description 12
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 239000000463 material Substances 0.000 claims 2
- 239000002245 particle Substances 0.000 description 31
- 239000000843 powder Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 10
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 9
- 229910052751 metal Inorganic materials 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- 229910001566 austenite Inorganic materials 0.000 description 7
- 239000011230 binding agent Substances 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 239000003973 paint Substances 0.000 description 4
- 239000006185 dispersion Substances 0.000 description 3
- 239000006249 magnetic particle Substances 0.000 description 3
- 238000005245 sintering Methods 0.000 description 3
- 238000011282 treatment Methods 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 101000859864 Rattus norvegicus Gamma-crystallin E Proteins 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 238000003490 calendering Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000007888 film coating Substances 0.000 description 1
- 238000009501 film coating Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- 235000013980 iron oxide Nutrition 0.000 description 1
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 229910006540 α-FeOOH Inorganic materials 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
- G11B5/70605—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 metals or alloys
- G11B5/70615—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 metals or alloys containing Fe metal or alloys
Landscapes
- Engineering & Computer Science (AREA)
- Metallurgy (AREA)
- Paints Or Removers (AREA)
- Magnetic Record Carriers (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56028487A JPS57143733A (en) | 1981-03-02 | 1981-03-02 | Magnetic recording medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56028487A JPS57143733A (en) | 1981-03-02 | 1981-03-02 | Magnetic recording medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57143733A JPS57143733A (en) | 1982-09-06 |
| JPH038015B2 true JPH038015B2 (he) | 1991-02-05 |
Family
ID=12250018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56028487A Granted JPS57143733A (en) | 1981-03-02 | 1981-03-02 | Magnetic recording medium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57143733A (he) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0654536B2 (ja) * | 1983-02-04 | 1994-07-20 | 富士写真フイルム株式会社 | 磁気記録媒体 |
| JPS59203224A (ja) * | 1983-05-02 | 1984-11-17 | Fuji Photo Film Co Ltd | 磁気記録媒体 |
| JPH0644341B2 (ja) * | 1983-09-22 | 1994-06-08 | ティーディーケイ株式会社 | 磁気記録媒体 |
| JPH03116416A (ja) * | 1990-04-27 | 1991-05-17 | Hitachi Ltd | 磁気ディスク媒体 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54159203A (en) * | 1978-06-07 | 1979-12-15 | Fuji Photo Film Co Ltd | Audio magnetic recording tape |
| JPS5677931A (en) * | 1979-11-28 | 1981-06-26 | Tdk Corp | Magnetic recording medium and its producton |
-
1981
- 1981-03-02 JP JP56028487A patent/JPS57143733A/ja active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54159203A (en) * | 1978-06-07 | 1979-12-15 | Fuji Photo Film Co Ltd | Audio magnetic recording tape |
| JPS5677931A (en) * | 1979-11-28 | 1981-06-26 | Tdk Corp | Magnetic recording medium and its producton |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57143733A (en) | 1982-09-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4455345A (en) | Magnetic recording medium | |
| US4396668A (en) | Magnetic recording medium | |
| JPH036576B2 (he) | ||
| JPH038015B2 (he) | ||
| JPS6292128A (ja) | 磁気記録媒体 | |
| JPH036574B2 (he) | ||
| JP2802518B2 (ja) | 磁気記録媒体 | |
| US4851258A (en) | Method for preparing magnetic particles for magnetic-recording media | |
| JPH0610865B2 (ja) | 磁気記録媒体 | |
| JPH0766519B2 (ja) | 磁気記録媒体 | |
| JP2632943B2 (ja) | 磁気記録媒体 | |
| US4722862A (en) | Magnetic recording medium | |
| JP2989874B2 (ja) | 磁気記録媒体 | |
| JP2910813B2 (ja) | 非磁性黒褐色含水酸化鉄粒子粉末及びその製造法並びに該粉末を用いた磁気記録媒体用下地層 | |
| JPH0481248B2 (he) | ||
| JP2897794B2 (ja) | コバルト被着型磁性酸化鉄粒子粉末の製造法 | |
| JPS6194226A (ja) | 磁気記録媒体 | |
| JPS6116024A (ja) | 磁気記録媒体 | |
| JP2669456B2 (ja) | 磁気記録再生装置 | |
| JP3252226B2 (ja) | 磁気記録媒体 | |
| JPH09293234A (ja) | 磁気記録媒体 | |
| JPH08124147A (ja) | 磁気記録媒体 | |
| JPS6196518A (ja) | 磁気記録媒体 | |
| JPS62241127A (ja) | 磁気記録媒体 | |
| JPS6174137A (ja) | 磁気デイスク |