JPH0346890B2 - - Google Patents

Info

Publication number
JPH0346890B2
JPH0346890B2 JP58044364A JP4436483A JPH0346890B2 JP H0346890 B2 JPH0346890 B2 JP H0346890B2 JP 58044364 A JP58044364 A JP 58044364A JP 4436483 A JP4436483 A JP 4436483A JP H0346890 B2 JPH0346890 B2 JP H0346890B2
Authority
JP
Japan
Prior art keywords
alumite
substrate
film
cracks
magnetic recording
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
Application number
JP58044364A
Other languages
English (en)
Japanese (ja)
Other versions
JPS59171023A (ja
Inventor
Koichi Yoshida
Yoshio Hirayama
Yasuo Oka
Takashi Kajama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Light Metal Co Ltd
Original Assignee
Nippon Light Metal Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nippon Light Metal Co Ltd filed Critical Nippon Light Metal Co Ltd
Priority to JP58044364A priority Critical patent/JPS59171023A/ja
Priority to GB08405910A priority patent/GB2136448B/en
Priority to DE3408753A priority patent/DE3408753C2/de
Priority to FR8403879A priority patent/FR2542901B1/fr
Priority to CA000449707A priority patent/CA1237694A/en
Priority to KR1019840001318A priority patent/KR840007910A/ko
Priority to IT8420101A priority patent/IT1206136B/it
Priority to NL8400849A priority patent/NL8400849A/nl
Publication of JPS59171023A publication Critical patent/JPS59171023A/ja
Publication of JPH0346890B2 publication Critical patent/JPH0346890B2/ja
Granted legal-status Critical Current

Links

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)
JP58044364A 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 Granted JPS59171023A (ja)

Priority Applications (8)

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
GB08405910A GB2136448B (en) 1983-03-18 1984-03-07 Anodising aluminium substrate for magnetic recording media
DE3408753A DE3408753C2 (de) 1983-03-18 1984-03-09 Verfahren zur Herstellung eines Aluminiumsubstrats mit anodischer Oxidschicht für magnetische Aufzeichnungsmedien
FR8403879A FR2542901B1 (fr) 1983-03-18 1984-03-12 Procede de fabrication d'un substrat d'aluminium pour support d'enregistrement magnetique et substrat ainsi obtenu
CA000449707A CA1237694A (en) 1983-03-18 1984-03-15 Process of producing aluminum substrate for magnetic recording media
KR1019840001318A KR840007910A (ko) 1983-03-18 1984-03-15 고밀도 자기기록매체용 알루미늄기판의 제조방법
IT8420101A IT1206136B (it) 1983-03-18 1984-03-16 Procedimento per la produzione di un substrato di alluminio per mezzi di registrazione magnetica.
NL8400849A NL8400849A (nl) 1983-03-18 1984-03-16 Werkwijze voor het vervaardigen van een aluminiumsubstraat voor een magnetisch registratiemedium.

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
JPS59171023A JPS59171023A (ja) 1984-09-27
JPH0346890B2 true JPH0346890B2 (enrdf_load_stackoverflow) 1991-07-17

Family

ID=12689451

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58044364A Granted 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

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
FR2542901A1 (fr) 1984-09-21
KR840007910A (ko) 1984-12-11
IT1206136B (it) 1989-04-14
NL8400849A (nl) 1984-10-16
GB8405910D0 (en) 1984-04-11
DE3408753C2 (de) 1986-04-17
CA1237694A (en) 1988-06-07
JPS59171023A (ja) 1984-09-27
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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