GB1204785A - Manufacture of permanent magnets - Google Patents

Manufacture of permanent magnets

Info

Publication number
GB1204785A
GB1204785A GB480068A GB480068A GB1204785A GB 1204785 A GB1204785 A GB 1204785A GB 480068 A GB480068 A GB 480068A GB 480068 A GB480068 A GB 480068A GB 1204785 A GB1204785 A GB 1204785A
Authority
GB
United Kingdom
Prior art keywords
melt
ingot
permanent magnets
jan
heating
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
GB480068A
Inventor
Stuart Walter Ker Shaw
Derek Jim Palmer
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.)
Inco Ltd
Original Assignee
Inco 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 Inco Ltd filed Critical Inco Ltd
Priority to GB480068A priority Critical patent/GB1204785A/en
Priority to DE19691903977 priority patent/DE1903977A1/en
Priority to ES363008A priority patent/ES363008A1/en
Priority to NL6901345A priority patent/NL6901345A/xx
Priority to SE115469A priority patent/SE344474B/xx
Priority to FR6901990A priority patent/FR2001001A1/fr
Priority to BE727678D priority patent/BE727678A/xx
Publication of GB1204785A publication Critical patent/GB1204785A/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
    • H01F1/032—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
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/02—Making non-ferrous alloys by melting
    • C22C1/023—Alloys based on nickel
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Power Engineering (AREA)
  • Hard Magnetic Materials (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)

Abstract

1,204,785. Making alloys. INTERNATIONAL NICKEL Ltd. Jan.22, 1969 [Jan.30, 1968], No. 4800/68. Headings C7A and C7D. An ingot having a columnar crystal structure is made of an alloy consisting of Al 6-11% Ni 7-25% Co 20-55% Ti 1-6À5% Cu 0-10% Nb 0-4% Fe (at least 13%) balance except for C and impurities, by forming a melt of the constituents except Ti and Al and including in it C 0À01-0À25%, subjecting the melt to vacuum, adding the Ti and Al, holding the melt under vacuum for at least 2 minutes, and then casting in an ingot mould with a bottom chill. The initial melting and the Ti and Al additions are preferably effected under an inert gas. Permanent magnets may be made of the columnar portion of the ingot by solution-heating (e.g. at 1275‹C.), rapid cooling (e.g. in oil), heating in a magnetic field (e.g. at 799‹, 812‹ or 820‹ C.), and ageing (e.g. at 590‹ and then 560‹C.).
GB480068A 1968-01-30 1968-01-30 Manufacture of permanent magnets Expired GB1204785A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
GB480068A GB1204785A (en) 1968-01-30 1968-01-30 Manufacture of permanent magnets
DE19691903977 DE1903977A1 (en) 1968-01-30 1969-01-28 Process for making permanent magnets
ES363008A ES363008A1 (en) 1968-01-30 1969-01-28 Manufacture of permanent magnets
NL6901345A NL6901345A (en) 1968-01-30 1969-01-28
SE115469A SE344474B (en) 1968-01-30 1969-01-29
FR6901990A FR2001001A1 (en) 1968-01-30 1969-01-30
BE727678D BE727678A (en) 1968-01-30 1969-01-30

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB480068A GB1204785A (en) 1968-01-30 1968-01-30 Manufacture of permanent magnets

Publications (1)

Publication Number Publication Date
GB1204785A true GB1204785A (en) 1970-09-09

Family

ID=9784038

Family Applications (1)

Application Number Title Priority Date Filing Date
GB480068A Expired GB1204785A (en) 1968-01-30 1968-01-30 Manufacture of permanent magnets

Country Status (7)

Country Link
BE (1) BE727678A (en)
DE (1) DE1903977A1 (en)
ES (1) ES363008A1 (en)
FR (1) FR2001001A1 (en)
GB (1) GB1204785A (en)
NL (1) NL6901345A (en)
SE (1) SE344474B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103484724A (en) * 2013-09-06 2014-01-01 杭州科德磁业有限公司 Permanent magnet and manufacturing method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103484724A (en) * 2013-09-06 2014-01-01 杭州科德磁业有限公司 Permanent magnet and manufacturing method thereof
CN103484724B (en) * 2013-09-06 2016-03-23 杭州科德磁业有限公司 A kind of permanent magnet and preparation method thereof

Also Published As

Publication number Publication date
ES363008A1 (en) 1970-12-16
SE344474B (en) 1972-04-17
BE727678A (en) 1969-07-30
FR2001001A1 (en) 1969-09-19
DE1903977A1 (en) 1969-09-11
NL6901345A (en) 1969-08-01

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Legal Events

Date Code Title Description
PS Patent sealed
429A Application made for amendment of specification (sect. 29/1949)
429H Application (made) for amendment of specification now open to opposition (sect. 29/1949)
429D Case decided by the comptroller ** specification amended (sect. 29/1949)
PLNP Patent lapsed through nonpayment of renewal fees