GB1312999A - Method of manufacturing a magnetic body having anisotropic permanent magnetic properties - Google Patents

Method of manufacturing a magnetic body having anisotropic permanent magnetic properties

Info

Publication number
GB1312999A
GB1312999A GB4401970A GB4401970A GB1312999A GB 1312999 A GB1312999 A GB 1312999A GB 4401970 A GB4401970 A GB 4401970A GB 4401970 A GB4401970 A GB 4401970A GB 1312999 A GB1312999 A GB 1312999A
Authority
GB
United Kingdom
Prior art keywords
phase
manufacturing
temperature
anisotropic permanent
magnetic body
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
GB4401970A
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries 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 Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1312999A publication Critical patent/GB1312999A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/10—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of nickel or cobalt or alloys based thereon
    • 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
    • C22C19/07—Alloys based on nickel or cobalt based on cobalt
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/10—Ferrous alloys, e.g. steel alloys containing cobalt
    • C22C38/105—Ferrous alloys, e.g. steel alloys containing cobalt containing Co and Ni
    • 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
    • H01F1/032—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 hard-magnetic materials
    • H01F1/04—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 hard-magnetic materials metals or alloys

Abstract

1312999 Magnet alloys PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 15 Sept 1970 [18 September 1969] 44019/70 Heading C7A A magnet alloy containing in percentage by weight CO 28-42 Ni 10-20 Al 6-10 Cu 2-8 Ti 4-10 Fe balance and having a segregation temperature at least 25‹C higher than the Curie temperature of the α' phase, is homogenised and is then subjected to elastic deformation while being heat-treated to decompose the homogeneous phase into a Fe-Co rich phase (α') and a Ni-Al rich phase (α). The deformation may be effected between the segregation temperature and the Curie temperature of the (α') phase, and may be accompanied or followed by application of a magnetic field. Preferably the applied stresses are such that a tensile force is developed in the body in the easy axis of magnetization.
GB4401970A 1969-09-18 1970-09-15 Method of manufacturing a magnetic body having anisotropic permanent magnetic properties Expired GB1312999A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6914126A NL6914126A (en) 1969-09-18 1969-09-18

Publications (1)

Publication Number Publication Date
GB1312999A true GB1312999A (en) 1973-04-11

Family

ID=19807926

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4401970A Expired GB1312999A (en) 1969-09-18 1970-09-15 Method of manufacturing a magnetic body having anisotropic permanent magnetic properties

Country Status (8)

Country Link
US (1) US3660175A (en)
JP (1) JPS508014B1 (en)
BE (1) BE756299A (en)
DE (1) DE2042549C3 (en)
ES (1) ES383704A1 (en)
FR (1) FR2062281A5 (en)
GB (1) GB1312999A (en)
NL (1) NL6914126A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3892118A (en) * 1970-01-26 1975-07-01 Velinsky Milton Method of manufacturing bistable magnetic device
NL7217051A (en) * 1972-12-15 1974-06-18
US4053333A (en) * 1974-09-20 1977-10-11 University Of Pennsylvania Enhancing magnetic properties of amorphous alloys by annealing under stress
US4251293A (en) * 1979-02-28 1981-02-17 Bell Telephone Laboratories, Incorporated Magnetically anisotropic alloys by deformation processing
JPS6013408B2 (en) * 1979-03-19 1985-04-06 株式会社井上ジャパックス研究所 Manufacturing method of magnetically anisotropic alloy magnet

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB817702A (en) * 1957-01-23 1959-08-06 John Edward Gould Improvements in or relating to permanent magnets
GB821624A (en) * 1955-01-19 1959-10-14 Philips Electrical Ind Ltd Improvements in or relating to method of making anisotropic permanent magnets
US3226266A (en) * 1962-02-07 1965-12-28 U S Magnet & Alloy Corp Method of making permanent magnets
GB1003846A (en) * 1962-04-06 1965-09-08 Ct Magneti Permanenti S P A Process for manufacturing monocrystalline magnets
GB1085934A (en) * 1965-09-17 1967-10-04 Swift Levick & Sons Ltd Improvements in or relating to permanent magnets
NL154036C (en) * 1967-06-09 1979-12-17 Philips Nv METHOD OF MANUFACTURING ANISOTROPIC PERMANENT MAGNETS.

Also Published As

Publication number Publication date
FR2062281A5 (en) 1971-06-25
US3660175A (en) 1972-05-02
JPS508014B1 (en) 1975-04-01
DE2042549B2 (en) 1977-09-15
DE2042549A1 (en) 1971-04-08
NL6914126A (en) 1971-03-22
DE2042549C3 (en) 1978-05-24
BE756299A (en) 1971-03-17
ES383704A1 (en) 1973-07-01

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee