FR2542901B1 - Procede de fabrication d'un substrat d'aluminium pour support d'enregistrement magnetique et substrat ainsi obtenu - Google Patents

Procede de fabrication d'un substrat d'aluminium pour support d'enregistrement magnetique et substrat ainsi obtenu

Info

Publication number
FR2542901B1
FR2542901B1 FR8403879A FR8403879A FR2542901B1 FR 2542901 B1 FR2542901 B1 FR 2542901B1 FR 8403879 A FR8403879 A FR 8403879A FR 8403879 A FR8403879 A FR 8403879A FR 2542901 B1 FR2542901 B1 FR 2542901B1
Authority
FR
France
Prior art keywords
substrate
manufacturing
recording medium
magnetic recording
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
FR8403879A
Other languages
English (en)
Other versions
FR2542901A1 (fr
Inventor
Koichi Yoshida
Yoshio Hirayama
Yasuo Oka
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
Publication of FR2542901A1 publication Critical patent/FR2542901A1/fr
Application granted granted Critical
Publication of FR2542901B1 publication Critical patent/FR2542901B1/fr
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)
FR8403879A 1983-03-18 1984-03-12 Procede de fabrication d'un substrat d'aluminium pour support d'enregistrement magnetique et substrat ainsi obtenu Expired FR2542901B1 (fr)

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
FR2542901A1 FR2542901A1 (fr) 1984-09-21
FR2542901B1 true FR2542901B1 (fr) 1987-11-13

Family

ID=12689451

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8403879A Expired 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

Country Status (8)

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

Families Citing this family (4)

* 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
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)

* 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 (fr) * 1966-07-13 1968-01-15
NL6612707A (fr) * 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
DE3408753C2 (de) 1986-04-17
DE3408753A1 (de) 1984-09-20
KR840007910A (ko) 1984-12-11
IT1206136B (it) 1989-04-14
GB8405910D0 (en) 1984-04-11
JPS59171023A (ja) 1984-09-27
GB2136448B (en) 1986-09-17
CA1237694A (fr) 1988-06-07
FR2542901A1 (fr) 1984-09-21
NL8400849A (nl) 1984-10-16
JPH0346890B2 (fr) 1991-07-17
IT8420101A0 (it) 1984-03-16
GB2136448A (en) 1984-09-19

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Legal Events

Date Code Title Description
ST Notification of lapse