CA1237694A - Process of producing aluminum substrate for magnetic recording media - Google Patents

Process of producing aluminum substrate for magnetic recording media

Info

Publication number
CA1237694A
CA1237694A CA000449707A CA449707A CA1237694A CA 1237694 A CA1237694 A CA 1237694A CA 000449707 A CA000449707 A CA 000449707A CA 449707 A CA449707 A CA 449707A CA 1237694 A CA1237694 A CA 1237694A
Authority
CA
Canada
Prior art keywords
aluminum
magnetic recording
recording media
substrate
aluminum substrate
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
CA000449707A
Other languages
English (en)
French (fr)
Inventor
Koichi Yoshida
Yasuo Oka
Yoshio Hirayama
Takashi Kajiyama
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
Application granted granted Critical
Publication of CA1237694A publication Critical patent/CA1237694A/en
Expired 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)
CA000449707A 1983-03-18 1984-03-15 Process of producing aluminum substrate for magnetic recording media Expired CA1237694A (en)

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 1983-03-18

Publications (1)

Publication Number Publication Date
CA1237694A true CA1237694A (en) 1988-06-07

Family

ID=12689451

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000449707A Expired CA1237694A (en) 1983-03-18 1984-03-15 Process of producing aluminum substrate for magnetic recording media

Country Status (8)

Country Link
JP (1) JPS59171023A (enExample)
KR (1) KR840007910A (enExample)
CA (1) CA1237694A (enExample)
DE (1) DE3408753C2 (enExample)
FR (1) FR2542901B1 (enExample)
GB (1) GB2136448B (enExample)
IT (1) IT1206136B (enExample)
NL (1) NL8400849A (enExample)

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
PL2198076T3 (pl) 2007-10-03 2016-09-30 Sposób wytwarzania metalu o właściwościach biobójczych

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 (enExample) * 1966-07-13 1968-01-15
NL6612707A (enExample) * 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
DE3408753A1 (de) 1984-09-20
DE3408753C2 (de) 1986-04-17
KR840007910A (ko) 1984-12-11
GB2136448A (en) 1984-09-19
GB2136448B (en) 1986-09-17
FR2542901A1 (fr) 1984-09-21
JPH0346890B2 (enExample) 1991-07-17
FR2542901B1 (fr) 1987-11-13
GB8405910D0 (en) 1984-04-11
IT1206136B (it) 1989-04-14
IT8420101A0 (it) 1984-03-16
NL8400849A (nl) 1984-10-16
JPS59171023A (ja) 1984-09-27

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Legal Events

Date Code Title Description
MKEX Expiry