NL8400849A - Werkwijze voor het vervaardigen van een aluminiumsubstraat voor een magnetisch registratiemedium. - Google Patents
Werkwijze voor het vervaardigen van een aluminiumsubstraat voor een magnetisch registratiemedium. Download PDFInfo
- Publication number
- NL8400849A NL8400849A NL8400849A NL8400849A NL8400849A NL 8400849 A NL8400849 A NL 8400849A NL 8400849 A NL8400849 A NL 8400849A NL 8400849 A NL8400849 A NL 8400849A NL 8400849 A NL8400849 A NL 8400849A
- Authority
- NL
- Netherlands
- Prior art keywords
- aluminum
- substrate
- electrolyte
- chromic acid
- volts
- Prior art date
Links
- 229910052782 aluminium Inorganic materials 0.000 title claims description 66
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims description 61
- 239000000758 substrate Substances 0.000 title claims description 56
- 238000000034 method Methods 0.000 title claims description 17
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims description 24
- KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 claims description 24
- AWJWCTOOIBYHON-UHFFFAOYSA-N furo[3,4-b]pyrazine-5,7-dione Chemical compound C1=CN=C2C(=O)OC(=O)C2=N1 AWJWCTOOIBYHON-UHFFFAOYSA-N 0.000 claims description 24
- 239000003792 electrolyte Substances 0.000 claims description 15
- 239000010407 anodic oxide Substances 0.000 claims description 13
- 229910000838 Al alloy Inorganic materials 0.000 claims description 11
- 238000005868 electrolysis reaction Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- 235000006408 oxalic acid Nutrition 0.000 claims description 8
- -1 aluminum ions Chemical class 0.000 claims description 5
- 229910052749 magnesium Inorganic materials 0.000 claims description 5
- 239000011777 magnesium Substances 0.000 claims description 5
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 2
- 239000010953 base metal Substances 0.000 claims description 2
- 239000007864 aqueous solution Substances 0.000 claims 2
- 206010027146 Melanoderma Diseases 0.000 description 14
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 14
- 230000007547 defect Effects 0.000 description 11
- 230000015572 biosynthetic process Effects 0.000 description 7
- 230000003647 oxidation Effects 0.000 description 7
- 238000007254 oxidation reaction Methods 0.000 description 7
- 238000011156 evaluation Methods 0.000 description 6
- 238000005498 polishing Methods 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 241001416092 Buteo buteo Species 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910000861 Mg alloy Inorganic materials 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000013527 degreasing agent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000003678 scratch resistant effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 238000004227 thermal cracking Methods 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/06—Anodisation of aluminium or alloys based thereon characterised by the electrolytes used
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/04—Electroplating: Baths therefor from solutions of chromium
-
- 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
- G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
- G11B5/739—Magnetic recording media substrates
- G11B5/73911—Inorganic substrates
- G11B5/73917—Metallic substrates, i.e. elemental metal or metal alloy substrates
- G11B5/73919—Aluminium or titanium elemental or alloy substrates
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Metallurgy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
- Magnetic Record Carriers (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4436483 | 1983-03-18 | ||
| JP58044364A JPS59171023A (ja) | 1983-03-18 | 1983-03-18 | 高密度磁気記録材用アルマイト基板の製造法 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL8400849A true NL8400849A (nl) | 1984-10-16 |
Family
ID=12689451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL8400849A NL8400849A (nl) | 1983-03-18 | 1984-03-16 | Werkwijze voor het vervaardigen van een aluminiumsubstraat voor een magnetisch registratiemedium. |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS59171023A (enrdf_load_stackoverflow) |
| KR (1) | KR840007910A (enrdf_load_stackoverflow) |
| CA (1) | CA1237694A (enrdf_load_stackoverflow) |
| DE (1) | DE3408753C2 (enrdf_load_stackoverflow) |
| FR (1) | FR2542901B1 (enrdf_load_stackoverflow) |
| GB (1) | GB2136448B (enrdf_load_stackoverflow) |
| IT (1) | IT1206136B (enrdf_load_stackoverflow) |
| NL (1) | NL8400849A (enrdf_load_stackoverflow) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62149029A (ja) * | 1985-09-04 | 1987-07-03 | Furukawa Alum Co Ltd | アルマイト磁気デイスク基板とその製造方法 |
| GB0208642D0 (en) | 2002-04-16 | 2002-05-22 | Accentus Plc | Metal implants |
| RU2232904C1 (ru) * | 2003-01-22 | 2004-07-20 | Федеральное государственное унитарное предприятие Всероссийский научно-исследовательский и конструкторско-технологический институт подвижного состава | Способ и система контроля состояния масла в двигателе внутреннего сгорания |
| GB0405680D0 (en) | 2004-03-13 | 2004-04-21 | Accentus Plc | Metal implants |
| US8858775B2 (en) | 2007-10-03 | 2014-10-14 | Accentus Medical Limited | Method of manufacturing metal with biocidal properties |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH287575A (fr) * | 1951-01-27 | 1952-12-15 | S A Vernal | Procédé d'oxydation électrolytique de l'aluminium et de ses alliages. |
| NL6609803A (enrdf_load_stackoverflow) * | 1966-07-13 | 1968-01-15 | ||
| NL6612707A (enrdf_load_stackoverflow) * | 1966-09-09 | 1968-03-11 | ||
| US4109287A (en) * | 1972-04-14 | 1978-08-22 | Pilot Man-Nun-Hitsu Kabushiki Kaisha | Process for recording information or sound and process for preparation of recording materials used therefor |
| GB1464857A (en) * | 1974-05-08 | 1977-02-16 | Nat Res Dev | Chromic acid anodising of aluminium and its alloys |
-
1983
- 1983-03-18 JP JP58044364A patent/JPS59171023A/ja active Granted
-
1984
- 1984-03-07 GB GB08405910A patent/GB2136448B/en not_active Expired
- 1984-03-09 DE DE3408753A patent/DE3408753C2/de not_active Expired
- 1984-03-12 FR FR8403879A patent/FR2542901B1/fr not_active Expired
- 1984-03-15 CA CA000449707A patent/CA1237694A/en not_active Expired
- 1984-03-15 KR KR1019840001318A patent/KR840007910A/ko not_active Ceased
- 1984-03-16 NL NL8400849A patent/NL8400849A/nl not_active Application Discontinuation
- 1984-03-16 IT IT8420101A patent/IT1206136B/it active
Also Published As
| Publication number | Publication date |
|---|---|
| FR2542901A1 (fr) | 1984-09-21 |
| KR840007910A (ko) | 1984-12-11 |
| IT1206136B (it) | 1989-04-14 |
| GB8405910D0 (en) | 1984-04-11 |
| DE3408753C2 (de) | 1986-04-17 |
| CA1237694A (en) | 1988-06-07 |
| JPS59171023A (ja) | 1984-09-27 |
| JPH0346890B2 (enrdf_load_stackoverflow) | 1991-07-17 |
| IT8420101A0 (it) | 1984-03-16 |
| GB2136448A (en) | 1984-09-19 |
| GB2136448B (en) | 1986-09-17 |
| FR2542901B1 (fr) | 1987-11-13 |
| DE3408753A1 (de) | 1984-09-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A1A | A request for search or an international-type search has been filed | ||
| A85 | Still pending on 85-01-01 | ||
| BT | A notification was added to the application dossier and made available to the public | ||
| BB | A search report has been drawn up | ||
| BC | A request for examination has been filed | ||
| BV | The patent application has lapsed |