GB661727A - Improvements in or relating to permanent magnets - Google Patents

Improvements in or relating to permanent magnets

Info

Publication number
GB661727A
GB661727A GB1614049A GB1614049A GB661727A GB 661727 A GB661727 A GB 661727A GB 1614049 A GB1614049 A GB 1614049A GB 1614049 A GB1614049 A GB 1614049A GB 661727 A GB661727 A GB 661727A
Authority
GB
United Kingdom
Prior art keywords
per cent
permanent magnets
niobium
relating
tantalum
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
GB1614049A
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.)
Swift Levick and Sons Ltd
Original Assignee
Swift Levick and Sons 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 Swift Levick and Sons Ltd filed Critical Swift Levick and Sons Ltd
Priority to GB1614049A priority Critical patent/GB661727A/en
Publication of GB661727A publication Critical patent/GB661727A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D25/00—Special casting characterised by the nature of the product
    • B22D25/06—Special casting characterised by the nature of the product by its physical properties

Abstract

An alloy for use in casting permanent magnets contains in addition to iron and the usual impurities 10 per cent to 30 per cent nickel, 6 per cent to 11 per cent aluminium, 12 per cent to 30 per cent cobalt, 0.5 per cent to 8 per cent copper, a preferred alloy containing 13.5 per cent nickel, 8 per cent aluminium, 24.5 per cent or 25 per cent cobalt and 3 per cent copper. Niobium may be added in amounts between 0.5 per cent and 3.25 per cent and tantalum may be included either alone or with niobium, the total amount of niobium and tantalum being between 0.5 per cent and 5 per cent and the proportions being between 3 : 1 and 1 : 3.
GB1614049A 1949-06-17 1949-06-17 Improvements in or relating to permanent magnets Expired GB661727A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1614049A GB661727A (en) 1949-06-17 1949-06-17 Improvements in or relating to permanent magnets

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1614049A GB661727A (en) 1949-06-17 1949-06-17 Improvements in or relating to permanent magnets

Publications (1)

Publication Number Publication Date
GB661727A true GB661727A (en) 1951-11-28

Family

ID=10071898

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1614049A Expired GB661727A (en) 1949-06-17 1949-06-17 Improvements in or relating to permanent magnets

Country Status (1)

Country Link
GB (1) GB661727A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2821759A (en) * 1952-12-17 1958-02-04 Philips Corp Method of manufacturing permanent magnets from an iron-base alloy containing ni, al, and co as principal elements
DE1104126B (en) * 1952-12-17 1961-04-06 Philips Nv Process for the production of magnetically anisotropic permanent magnets containing Ni, Al and Co as the main elements on an iron basis by casting
DE1127036B (en) * 1952-12-17 1962-04-05 Philips Nv Process for the production of magnetically anisotropic permanent magnets on an iron basis by casting
US3110943A (en) * 1958-10-02 1963-11-19 Inca Steel Company Ltd Production of metal ingots, castings and the like
US3204301A (en) * 1960-10-24 1965-09-07 M C Flemings Jr Casting process and apparatus for obtaining unidirectional solidification
US3233294A (en) * 1962-02-07 1966-02-08 U S Magnet & Alloy Corp Method and apparatus for casting vertically stacked magnet bodies

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2821759A (en) * 1952-12-17 1958-02-04 Philips Corp Method of manufacturing permanent magnets from an iron-base alloy containing ni, al, and co as principal elements
DE1104126B (en) * 1952-12-17 1961-04-06 Philips Nv Process for the production of magnetically anisotropic permanent magnets containing Ni, Al and Co as the main elements on an iron basis by casting
DE1127036B (en) * 1952-12-17 1962-04-05 Philips Nv Process for the production of magnetically anisotropic permanent magnets on an iron basis by casting
US3110943A (en) * 1958-10-02 1963-11-19 Inca Steel Company Ltd Production of metal ingots, castings and the like
US3204301A (en) * 1960-10-24 1965-09-07 M C Flemings Jr Casting process and apparatus for obtaining unidirectional solidification
US3233294A (en) * 1962-02-07 1966-02-08 U S Magnet & Alloy Corp Method and apparatus for casting vertically stacked magnet bodies

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