GB945066A - Improvements in or relating to a method of making ferromagnetic material from a nickel base alloy - Google Patents

Improvements in or relating to a method of making ferromagnetic material from a nickel base alloy

Info

Publication number
GB945066A
GB945066A GB1910961A GB1910961A GB945066A GB 945066 A GB945066 A GB 945066A GB 1910961 A GB1910961 A GB 1910961A GB 1910961 A GB1910961 A GB 1910961A GB 945066 A GB945066 A GB 945066A
Authority
GB
United Kingdom
Prior art keywords
temperature
alloy
ferromagnetic material
nickel base
base alloy
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
GB1910961A
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.)
Vacuumschmelze GmbH and Co KG
Original Assignee
Vacuumschmelze GmbH and Co KG
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 Vacuumschmelze GmbH and Co KG filed Critical Vacuumschmelze GmbH and Co KG
Publication of GB945066A publication Critical patent/GB945066A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01F1/147—Alloys characterised by their composition
    • H01F1/14708—Fe-Ni based alloys
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C19/00—Alloys based on nickel or cobalt
    • 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
    • H01F1/147—Alloys characterised by their composition
    • H01F1/14708—Fe-Ni based alloys
    • H01F1/14716—Fe-Ni based alloys in the form of sheets

Abstract

A ferromagnetic material for use in magnetic cores and having a Br/Bm value of at least 0.9 is made from a nickel base alloy of composition 74-82% Ni, O-11% Cu and 15-24% Fe+Mo and/or Mn and/or Cr, the Fe content being 9-23% and the Mo and/or Mn and/or Cr content being 1-6%, which is cold rolled at a final deformation not exceeding 90% to form a tape 0.03-0.35 mm. thick, the tape being subsequently annealed at between 900 and 1100 DEG C., e.g. in an inert or reducing atmosphere such as hydrogen or in a vacuum, and then tempered by heating at a temperature, or by cooling through a range of temperatures at a rate of not more than 10 DEG C. per hour, lying between that temperature at which the maximum initial permeability of the alloy would be obtained and the Curie temperature of the alloy, i.e. between 400 and 550 DEG C. for alloys containing 79% Ni, e.g. for 1-25 hours in hydrogen. The tempering may be effected directly after the anneal by the above rate of cooling from a temperature lying above that at which the maximum initial permeability of the alloy would be obtained, e.g. from 750 DEG C., to a temperature lying within the above range, e.g. 310 DEG C.
GB1910961A 1960-05-27 1961-05-26 Improvements in or relating to a method of making ferromagnetic material from a nickel base alloy Expired GB945066A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEV18711A DE1222271B (en) 1960-05-27 1960-05-27 Process for the production of highly permeable nickel-iron alloys with a rectangular hysteresis loop

Publications (1)

Publication Number Publication Date
GB945066A true GB945066A (en) 1963-12-18

Family

ID=7577310

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1910961A Expired GB945066A (en) 1960-05-27 1961-05-26 Improvements in or relating to a method of making ferromagnetic material from a nickel base alloy

Country Status (2)

Country Link
DE (1) DE1222271B (en)
GB (1) GB945066A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2081632A1 (en) * 1970-03-02 1971-12-10 Allegheny Ludlum Ind Inc
US4274888A (en) 1977-10-01 1981-06-23 Fried. Krupp Gesellschaft Mit Beschrankter Haftung Magnetic cores
EP0046279A2 (en) * 1980-08-19 1982-02-24 Vacuumschmelze GmbH Method of manufacturing annular tape cores for protective interrupters of fault currents
US11758704B2 (en) 2018-06-14 2023-09-12 Vacuumschmelze Gmbh & Co. Kg Panel for a magnetic shielding cabin, magnetic shielding cabin and method for the production of a panel and a magnetic shielding cabin

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2689300B1 (en) * 1992-03-30 1995-08-04 Mecagis PROCESS FOR THE PRODUCTION OF TORES IN SOFT MAGNETIC MATERIAL COMPRISING A LAYERED HYSTERESIS CYCLE.

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE867006C (en) * 1950-07-06 1953-02-12 Vacuumschmelze Ag Process for improving the magnetic properties of copper-containing nickel-iron alloys

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2081632A1 (en) * 1970-03-02 1971-12-10 Allegheny Ludlum Ind Inc
US4274888A (en) 1977-10-01 1981-06-23 Fried. Krupp Gesellschaft Mit Beschrankter Haftung Magnetic cores
EP0046279A2 (en) * 1980-08-19 1982-02-24 Vacuumschmelze GmbH Method of manufacturing annular tape cores for protective interrupters of fault currents
EP0046279A3 (en) * 1980-08-19 1983-10-12 Vacuumschmelze Gmbh Method of manufacturing annular tape cores for protective interrupters of fault currents
US11758704B2 (en) 2018-06-14 2023-09-12 Vacuumschmelze Gmbh & Co. Kg Panel for a magnetic shielding cabin, magnetic shielding cabin and method for the production of a panel and a magnetic shielding cabin

Also Published As

Publication number Publication date
DE1222271B (en) 1966-08-04

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