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CH311229A - Process for the galvanic deposition of a nickel and cobalt coating on a base metal in order to obtain a part intended to record magnetic pulses, and a coated part obtained by this process. - Google Patents

Process for the galvanic deposition of a nickel and cobalt coating on a base metal in order to obtain a part intended to record magnetic pulses, and a coated part obtained by this process.

Info

Publication number
CH311229A
CH311229A CH311229DA CH311229A CH 311229 A CH311229 A CH 311229A CH 311229D A CH311229D A CH 311229DA CH 311229 A CH311229 A CH 311229A
Authority
CH
Switzerland
Prior art keywords
nickel
base metal
order
galvanic deposition
magnetic pulses
Prior art date
Application number
Other languages
French (fr)
Inventor
Company The National Register
Original Assignee
Ncr Co
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 Ncr Co filed Critical Ncr Co
Publication of CH311229A publication Critical patent/CH311229A/en

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
    • C25D3/00—Electroplating: Baths therefor
    • C25D3/02—Electroplating: Baths therefor from solutions
    • C25D3/56—Electroplating: Baths therefor from solutions of alloys
    • C25D3/562—Electroplating: Baths therefor from solutions of alloys containing more than 50% by weight of iron or nickel or cobalt
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/18—Electroplating using modulated, pulsed or reversing current
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/60—Electroplating characterised by the structure or texture of the layers
    • C25D5/615—Microstructure of the layers, e.g. mixed structure
    • C25D5/617—Crystalline layers
    • 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
    • G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
    • G11B5/858—Producing a magnetic layer by electro-plating or electroless plating
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/14—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates
    • H01F41/24—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates from liquids
    • H01F41/26—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates from liquids using electric currents, e.g. electroplating

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Electroplating And Plating Baths Therefor (AREA)
  • Electroplating Methods And Accessories (AREA)
CH311229D 1952-04-22 1953-04-21 Process for the galvanic deposition of a nickel and cobalt coating on a base metal in order to obtain a part intended to record magnetic pulses, and a coated part obtained by this process. CH311229A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US283652A US2730491A (en) 1952-04-22 1952-04-22 Method of electroplating cobalt-nickel composition

Publications (1)

Publication Number Publication Date
CH311229A true CH311229A (en) 1955-11-30

Family

ID=23087005

Family Applications (1)

Application Number Title Priority Date Filing Date
CH311229D CH311229A (en) 1952-04-22 1953-04-21 Process for the galvanic deposition of a nickel and cobalt coating on a base metal in order to obtain a part intended to record magnetic pulses, and a coated part obtained by this process.

Country Status (6)

Country Link
US (1) US2730491A (en)
CH (1) CH311229A (en)
DE (1) DE956903C (en)
FR (1) FR1076019A (en)
GB (1) GB733252A (en)
NL (1) NL101173C (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3569946A (en) * 1958-09-25 1971-03-09 Burroughs Corp Magnetic material and data store
US3031648A (en) * 1960-05-25 1962-04-24 Ncr Co Magnetic data storage device
US3150939A (en) * 1961-07-17 1964-09-29 Ibm High density record carrier
US3867106A (en) * 1973-12-26 1975-02-18 Honeywell Inc Magnetic thin film data storage device and method of making
JPS6033289B2 (en) * 1979-07-18 1985-08-02 松下電器産業株式会社 Metal thin film magnetic recording media

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB584977A (en) * 1944-09-29 1947-01-28 London Scandinavian Metall Improvements in or relating to the electro-deposition of nickel and nickel alloys
US2619454A (en) * 1945-08-30 1952-11-25 Brush Dev Co Method of manufacturing a magnetic recording medium by electrodeposition
US2451340A (en) * 1948-03-06 1948-10-12 Westinghouse Electric Corp Electroplating

Also Published As

Publication number Publication date
GB733252A (en) 1955-07-06
DE956903C (en) 1957-01-24
NL101173C (en)
FR1076019A (en) 1954-10-21
US2730491A (en) 1956-01-10

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