DE1774163A1 - Flexibler Ferrit-Keeper fuer magnetische Duennschichtspeicher und Verfahren zur Herstellung des Materials fuer den Ferrit-Keeper - Google Patents
Flexibler Ferrit-Keeper fuer magnetische Duennschichtspeicher und Verfahren zur Herstellung des Materials fuer den Ferrit-KeeperInfo
- Publication number
- DE1774163A1 DE1774163A1 DE19681774163 DE1774163A DE1774163A1 DE 1774163 A1 DE1774163 A1 DE 1774163A1 DE 19681774163 DE19681774163 DE 19681774163 DE 1774163 A DE1774163 A DE 1774163A DE 1774163 A1 DE1774163 A1 DE 1774163A1
- Authority
- DE
- Germany
- Prior art keywords
- ferrite
- solution
- polyisobutylene
- keeper
- molded body
- 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
- 229910000859 α-Fe Inorganic materials 0.000 title claims description 38
- 239000000463 material Substances 0.000 title claims description 15
- 238000000034 method Methods 0.000 title claims description 13
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 239000010409 thin film Substances 0.000 title claims description 4
- 238000003860 storage Methods 0.000 title claims description 3
- 229920002367 Polyisobutene Polymers 0.000 claims description 11
- 239000004033 plastic Substances 0.000 claims description 11
- 229920003023 plastic Polymers 0.000 claims description 11
- 239000000843 powder Substances 0.000 claims description 9
- 239000011230 binding agent Substances 0.000 claims description 8
- 239000010426 asphalt Substances 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- 239000002904 solvent Substances 0.000 claims description 7
- 239000004698 Polyethylene Substances 0.000 claims description 6
- -1 polyethylene Polymers 0.000 claims description 6
- 229920000573 polyethylene Polymers 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 238000001704 evaporation Methods 0.000 claims description 2
- 230000008020 evaporation Effects 0.000 claims description 2
- 230000003247 decreasing effect Effects 0.000 claims 1
- 229920002460 Oppanol® B 50 Polymers 0.000 description 5
- 230000035699 permeability Effects 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 238000000465 moulding Methods 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 229910001053 Nickel-zinc ferrite Inorganic materials 0.000 description 3
- 229920005987 OPPANOL® Polymers 0.000 description 3
- 239000000654 additive Substances 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 230000036461 convulsion Effects 0.000 description 1
- 239000002781 deodorant agent Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000012263 liquid product Substances 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 239000008247 solid mixture Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000001993 wax Substances 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
-
- 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
-
- 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
- G11B5/702—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 bonding agent
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Soft Magnetic Materials (AREA)
- Magnetic Ceramics (AREA)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19681774163 DE1774163A1 (de) | 1968-04-24 | 1968-04-24 | Flexibler Ferrit-Keeper fuer magnetische Duennschichtspeicher und Verfahren zur Herstellung des Materials fuer den Ferrit-Keeper |
| NL6905471A NL6905471A (enExample) | 1968-04-24 | 1969-04-09 | |
| GB1227073D GB1227073A (enExample) | 1968-04-24 | 1969-04-23 | |
| FR6912789A FR2006827A1 (enExample) | 1968-04-24 | 1969-04-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19681774163 DE1774163A1 (de) | 1968-04-24 | 1968-04-24 | Flexibler Ferrit-Keeper fuer magnetische Duennschichtspeicher und Verfahren zur Herstellung des Materials fuer den Ferrit-Keeper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1774163A1 true DE1774163A1 (de) | 1971-12-16 |
Family
ID=5702037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19681774163 Pending DE1774163A1 (de) | 1968-04-24 | 1968-04-24 | Flexibler Ferrit-Keeper fuer magnetische Duennschichtspeicher und Verfahren zur Herstellung des Materials fuer den Ferrit-Keeper |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE1774163A1 (enExample) |
| FR (1) | FR2006827A1 (enExample) |
| GB (1) | GB1227073A (enExample) |
| NL (1) | NL6905471A (enExample) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2134128A (en) * | 1983-01-27 | 1984-08-08 | Oilfield Inspection Services | Magnetically conductive materials and articles and methods using them |
| JPS60138731A (ja) * | 1983-12-27 | 1985-07-23 | Toshiba Corp | 磁気記録媒体の製造方法 |
| GB8402360D0 (en) * | 1984-01-30 | 1984-02-29 | Picker Int Ltd | Nmr shims |
-
1968
- 1968-04-24 DE DE19681774163 patent/DE1774163A1/de active Pending
-
1969
- 1969-04-09 NL NL6905471A patent/NL6905471A/xx unknown
- 1969-04-23 GB GB1227073D patent/GB1227073A/en not_active Expired
- 1969-04-23 FR FR6912789A patent/FR2006827A1/fr not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| GB1227073A (enExample) | 1971-03-31 |
| NL6905471A (enExample) | 1969-10-28 |
| FR2006827A1 (enExample) | 1970-01-02 |
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