GB753455A - Improvements in and relating to magnetic materials - Google Patents

Improvements in and relating to magnetic materials

Info

Publication number
GB753455A
GB753455A GB23107/52A GB2310752A GB753455A GB 753455 A GB753455 A GB 753455A GB 23107/52 A GB23107/52 A GB 23107/52A GB 2310752 A GB2310752 A GB 2310752A GB 753455 A GB753455 A GB 753455A
Authority
GB
United Kingdom
Prior art keywords
iron
sheet
substrate
gms
coating
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
GB23107/52A
Inventor
John Aylward James
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston 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
Priority to BE522786D priority Critical patent/BE522786A/xx
Application filed by British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Priority to GB23107/52A priority patent/GB753455A/en
Priority to US377978A priority patent/US2792340A/en
Priority to DEB27387A priority patent/DE949268C/en
Priority to FR1083276D priority patent/FR1083276A/en
Priority to CH324205D priority patent/CH324205A/en
Publication of GB753455A publication Critical patent/GB753455A/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
    • C25D1/00—Electroforming
    • C25D1/04—Wires; Strips; Foils
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
    • C21D8/1277—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties involving a particular surface treatment
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D1/00—Electroforming
    • C25D1/20—Separation of the formed objects from the electrodes with no destruction of said electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
    • H01F1/16—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of sheets
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
    • C21D8/1244—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the heat treatment(s) being of interest

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Power Engineering (AREA)
  • Electrochemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Manufacturing & Machinery (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Electroplating And Plating Baths Therefor (AREA)
  • Electrolytic Production Of Metals (AREA)

Abstract

753,455. Electrolytic production of iron sheets. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 26, 1953 [Sept. 15, 1952], No. 23107/52. Class 41. A process of producing a sheet of iron consists in preparing a sheet of metallic substrate material of cubic structure having the majority of its crystals aligned so that two adjacent cube edges lie substantially in the plane of the sheet, electrolytically depositing iron on the substrate using an electrolyte of ferrous chloride at a temperature of not less than 50‹ C. and a current density of 1 amp/dm<SP>2</SP> until a coating of at least 0.002 inches has been obtained, and separating the coating from the substrate. A substrate of gold may be used, which is first cold rolled and then annealed at 1000‹ C. for one hour. Substrates of copper, iron, nickel, aluminium, or a nickel-iron alloy containing 50 per cent nickel, may also be used. The iron may be deposited from 600 gms. of FeCl2.4H 2 O per litre of water at a pH of 1.8 and at 70‹ C. The iron sheet obtained in this way may be used as a " master " for producing further sheets by first electrodepositing silver or tin on the " master" (90 gms. Na 2 SnO3. 3H 2 O and 7.5 gms. NaOH in 1 litre of water at cathode current density of 0.1 amps/dm<SP>2</SP> and at 70‹ C., with tin anodes, may be used), iron then being electrodeposited on the coating as before. The so-deposited iron sheet is then removed, e.g. by melting the intermediate metal, or in the case of tin, by exposing the sheet to chlorine.
GB23107/52A 1952-09-15 1952-09-15 Improvements in and relating to magnetic materials Expired GB753455A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
BE522786D BE522786A (en) 1952-09-15
GB23107/52A GB753455A (en) 1952-09-15 1952-09-15 Improvements in and relating to magnetic materials
US377978A US2792340A (en) 1952-09-15 1953-09-01 Magnetic materials
DEB27387A DE949268C (en) 1952-09-15 1953-09-10 Method of making an iron layer
FR1083276D FR1083276A (en) 1952-09-15 1953-09-11 Magnetic materials
CH324205D CH324205A (en) 1952-09-15 1953-09-14 Method of making an iron foil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB23107/52A GB753455A (en) 1952-09-15 1952-09-15 Improvements in and relating to magnetic materials

Publications (1)

Publication Number Publication Date
GB753455A true GB753455A (en) 1956-07-25

Family

ID=10190218

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23107/52A Expired GB753455A (en) 1952-09-15 1952-09-15 Improvements in and relating to magnetic materials

Country Status (6)

Country Link
US (1) US2792340A (en)
BE (1) BE522786A (en)
CH (1) CH324205A (en)
DE (1) DE949268C (en)
FR (1) FR1083276A (en)
GB (1) GB753455A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3008882A (en) * 1956-02-13 1961-11-14 Palmer H Craig Process of making magnetic amplifiers
US3164496A (en) * 1956-09-20 1965-01-05 Gen Electric Magnetic material and method of fabrication
US3457634A (en) * 1966-03-29 1969-07-29 Sperry Rand Corp Method for fabricating memory apparatus
JPS499939B1 (en) * 1969-07-28 1974-03-07
US3844907A (en) * 1970-03-27 1974-10-29 Fuji Photo Film Co Ltd Method of reproducing magnetization pattern

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US992951A (en) * 1909-10-23 1911-05-23 Franz Fischer Process for the manufacture of ductile electrolytic iron.
US992952A (en) * 1910-08-29 1911-05-23 Franz Fischer Process for the manufacture of ductile electrolytic iron.
US2165027A (en) * 1935-11-21 1939-07-04 Westinghouse Electric & Mfg Co Process for producing magnetic sheet
US2706329A (en) * 1951-05-12 1955-04-19 Michigan Bumper Corp Electrically deposited core iron

Also Published As

Publication number Publication date
CH324205A (en) 1957-09-15
DE949268C (en) 1956-09-13
BE522786A (en)
US2792340A (en) 1957-05-14
FR1083276A (en) 1955-01-06

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