GB905476A - Process for making a magnetic device - Google Patents

Process for making a magnetic device

Info

Publication number
GB905476A
GB905476A GB17723/61A GB1772361A GB905476A GB 905476 A GB905476 A GB 905476A GB 17723/61 A GB17723/61 A GB 17723/61A GB 1772361 A GB1772361 A GB 1772361A GB 905476 A GB905476 A GB 905476A
Authority
GB
United Kingdom
Prior art keywords
wire
coating
magnetic storage
magnetic
making
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
GB17723/61A
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.)
NCR Voyix Corp
National Cash Register Co
Original Assignee
NCR Corp
National Cash Register 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 Corp, National Cash Register Co filed Critical NCR Corp
Publication of GB905476A publication Critical patent/GB905476A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/45—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of non-linear magnetic or dielectric devices
    • 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
    • C25D5/34—Pretreatment of metallic surfaces to be electroplated
    • 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
    • H01F41/02—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 manufacturing cores, coils, or magnets
    • H01F41/04—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 manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/041—Printed circuit coils
    • H01F41/046—Printed circuit coils structurally combined with ferromagnetic material
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/80—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used using non-linear magnetic devices; using non-linear dielectric devices
    • H03K17/84—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used using non-linear magnetic devices; using non-linear dielectric devices the devices being thin-film devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y10T29/49069—Data storage inductor or core

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electroplating Methods And Accessories (AREA)

Abstract

905,476. Magnetic storage devices. NATIONAL CASH REGISTER CO. May 16, 1961 [May 19, 1960], No. 17723/61. Drawings to Specification. Class 41. A magnetic storage device is made by treating a non-magnetic wire, e.g. of heat-treated copper beryllium alloy, as follows, caustic alkali cleaner and rinse, etch and remove surface of wire with an acid, e.g. HNO 3 , and then electroplate using a bath containing FeCl 2 and NiCl 2 to give a coat preferably containing 3% of nickel. The plated wire may then be again rinsed and protected with a coating of resin. Cu/Be wire of about 5 to 50 mils diameter is given a coating up to 3000 Š thick, and a uniform coating is achieved by using a helical coil anode, with the wire passing through the axis, which also provides the magnetizing field.
GB17723/61A 1960-05-19 1961-05-16 Process for making a magnetic device Expired GB905476A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US30362A US3189532A (en) 1960-05-19 1960-05-19 Process for making conductive-core magnetic device

Publications (1)

Publication Number Publication Date
GB905476A true GB905476A (en) 1962-09-12

Family

ID=21853865

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17723/61A Expired GB905476A (en) 1960-05-19 1961-05-16 Process for making a magnetic device

Country Status (5)

Country Link
US (1) US3189532A (en)
BE (1) BE603829A (en)
CH (1) CH394299A (en)
GB (1) GB905476A (en)
NL (1) NL265014A (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL286609A (en) * 1961-12-12
US3441494A (en) * 1963-05-25 1969-04-29 Kokusai Denshin Denwa Co Ltd Apparatus to deposit a ferromagnetic film on a conductive wire
US3328270A (en) * 1963-07-20 1967-06-27 Toko Inc Method of manufacturing conductors having coatings of magnetic material partially deposited thereon
US3489660A (en) * 1966-01-03 1970-01-13 Honeywell Inc Electroplating bath and method
US3468765A (en) * 1966-08-04 1969-09-23 Nasa Method of plating copper on aluminum
US3920409A (en) * 1968-06-19 1975-11-18 Hitachi Ltd Plated ferromagnetic wire for wire memory
FR2039555A5 (en) * 1969-04-03 1971-01-15 Bull General Electric
DE1918354B2 (en) * 1969-04-11 1970-11-26 Licentia Gmbh Arrangement for the uniform galvanic coating of elongated cathodes through which current flows
US3645857A (en) * 1969-05-28 1972-02-29 Ferroxcube Corp Method of making plated wire memory element
US3639217A (en) * 1969-06-11 1972-02-01 Western Electric Co Method of producing in seriatim separate coatings on a conductor
US3972786A (en) * 1974-06-28 1976-08-03 Ampex Corporation Mechanically enhanced magnetic memory
US4048042A (en) * 1976-01-05 1977-09-13 Hooker Chemicals & Plastics Corporation Apparatus for electroplating plastic insulating cable sheaths
US4028064A (en) * 1976-02-17 1977-06-07 Texas Instruments Incorporated Beryllium copper plating process
US4069110A (en) * 1976-02-17 1978-01-17 Texas Instruments Incorporated Treatment of beryllium copper surface prior to electroplating

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1791642A (en) * 1926-05-29 1931-02-10 Schulte Louis Process of plating aluminum
US1965399A (en) * 1929-06-25 1934-07-03 Western Electric Co Method of and apparatus for electro-chemically producing articles
US2507400A (en) * 1943-08-02 1950-05-09 Sk Wellman Co Method of electroplating with iron and cobalt
US2619454A (en) * 1945-08-30 1952-11-25 Brush Dev Co Method of manufacturing a magnetic recording medium by electrodeposition
US2671950A (en) * 1950-03-09 1954-03-16 Sukacev Lev Method of constructing thermopiles
US2943956A (en) * 1952-12-18 1960-07-05 Automated Circuits Inc Printed electrical circuits and method of making the same
US2729601A (en) * 1953-04-24 1956-01-03 John G Beach Electroplating on beryllium
NL215595A (en) * 1956-03-22
US3039891A (en) * 1957-11-14 1962-06-19 Sperry Rand Corp Method of treating ni-fe thin metal film of body of magnetic material by subjecting to heat treatment in a magnetic field oriented transversely to the preferred axis of magnetization
NL243931A (en) * 1958-10-01
US3047423A (en) * 1958-12-17 1962-07-31 Ibm Isotropic thin magnetic film

Also Published As

Publication number Publication date
US3189532A (en) 1965-06-15
NL265014A (en)
CH394299A (en) 1965-06-30
BE603829A (en) 1961-11-01

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