KR840007910A - 고밀도 자기기록매체용 알루미늄기판의 제조방법 - Google Patents
고밀도 자기기록매체용 알루미늄기판의 제조방법 Download PDFInfo
- Publication number
- KR840007910A KR840007910A KR1019840001318A KR840001318A KR840007910A KR 840007910 A KR840007910 A KR 840007910A KR 1019840001318 A KR1019840001318 A KR 1019840001318A KR 840001318 A KR840001318 A KR 840001318A KR 840007910 A KR840007910 A KR 840007910A
- Authority
- KR
- South Korea
- Prior art keywords
- manufacturing
- recording medium
- magnetic recording
- high density
- aluminum
- 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.)
- Ceased
Links
- 229910052782 aluminium Inorganic materials 0.000 title claims 15
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims 14
- 238000004519 manufacturing process Methods 0.000 title claims 9
- 239000000758 substrate Substances 0.000 title claims 9
- 239000003792 electrolyte Substances 0.000 claims 5
- KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 claims 4
- 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 4
- 238000000034 method Methods 0.000 claims 4
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims 3
- 238000009713 electroplating Methods 0.000 claims 3
- 239000000463 material Substances 0.000 claims 3
- 229910000838 Al alloy Inorganic materials 0.000 claims 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims 1
- -1 aluminum ions Chemical class 0.000 claims 1
- 239000010953 base metal Substances 0.000 claims 1
- 229910052749 magnesium Inorganic materials 0.000 claims 1
- 239000011777 magnesium Substances 0.000 claims 1
- 235000006408 oxalic acid Nutrition 0.000 claims 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 |
|---|---|---|---|
| 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 |
| JP44364 | 1983-03-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR840007910A true KR840007910A (ko) | 1984-12-11 |
Family
ID=12689451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019840001318A Ceased KR840007910A (ko) | 1983-03-18 | 1984-03-15 | 고밀도 자기기록매체용 알루미늄기판의 제조방법 |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS59171023A (cg-RX-API-DMAC10.html) |
| KR (1) | KR840007910A (cg-RX-API-DMAC10.html) |
| CA (1) | CA1237694A (cg-RX-API-DMAC10.html) |
| DE (1) | DE3408753C2 (cg-RX-API-DMAC10.html) |
| FR (1) | FR2542901B1 (cg-RX-API-DMAC10.html) |
| GB (1) | GB2136448B (cg-RX-API-DMAC10.html) |
| IT (1) | IT1206136B (cg-RX-API-DMAC10.html) |
| NL (1) | NL8400849A (cg-RX-API-DMAC10.html) |
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 |
| GB2456853B (en) | 2007-10-03 | 2013-03-06 | Accentus Medical Plc | Metal treatment |
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 (cg-RX-API-DMAC10.html) * | 1966-07-13 | 1968-01-15 | ||
| NL6612707A (cg-RX-API-DMAC10.html) * | 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 IT IT8420101A patent/IT1206136B/it active
- 1984-03-16 NL NL8400849A patent/NL8400849A/nl not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| FR2542901B1 (fr) | 1987-11-13 |
| GB2136448A (en) | 1984-09-19 |
| IT8420101A0 (it) | 1984-03-16 |
| DE3408753A1 (de) | 1984-09-20 |
| DE3408753C2 (de) | 1986-04-17 |
| GB2136448B (en) | 1986-09-17 |
| NL8400849A (nl) | 1984-10-16 |
| FR2542901A1 (fr) | 1984-09-21 |
| JPS59171023A (ja) | 1984-09-27 |
| CA1237694A (en) | 1988-06-07 |
| IT1206136B (it) | 1989-04-14 |
| JPH0346890B2 (cg-RX-API-DMAC10.html) | 1991-07-17 |
| GB8405910D0 (en) | 1984-04-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PA0109 | Patent application |
Patent event code: PA01091R01D Comment text: Patent Application Patent event date: 19840315 |
|
| PG1501 | Laying open of application | ||
| E902 | Notification of reason for refusal | ||
| PE0902 | Notice of grounds for rejection |
Comment text: Notification of reason for refusal Patent event date: 19890228 Patent event code: PE09021S01D |
|
| E601 | Decision to refuse application | ||
| PE0601 | Decision on rejection of patent |
Patent event date: 19890525 Comment text: Decision to Refuse Application Patent event code: PE06012S01D Patent event date: 19890228 Comment text: Notification of reason for refusal Patent event code: PE06011S01I |