GB1204586A - Manufacture of permanent magnets - Google Patents

Manufacture of permanent magnets

Info

Publication number
GB1204586A
GB1204586A GB4799/68A GB479968A GB1204586A GB 1204586 A GB1204586 A GB 1204586A GB 4799/68 A GB4799/68 A GB 4799/68A GB 479968 A GB479968 A GB 479968A GB 1204586 A GB1204586 A GB 1204586A
Authority
GB
United Kingdom
Prior art keywords
melt
scrap
base charge
deoxidation
ingot
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
GB4799/68A
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 GB4799/68A priority Critical patent/GB1204586A/en
Priority to ES363070A priority patent/ES363070A1/en
Priority to US794158*A priority patent/US3615916A/en
Priority to DE19691903976 priority patent/DE1903976A1/en
Priority to NL6901344A priority patent/NL6901344A/xx
Priority to SE01153/69A priority patent/SE354488B/xx
Priority to CH143369A priority patent/CH511287A/en
Priority to BE727676D priority patent/BE727676A/xx
Priority to FR6901989A priority patent/FR2001000A1/fr
Priority to CA041,592A priority patent/CA939935A/en
Publication of GB1204586A publication Critical patent/GB1204586A/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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Power Engineering (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

1,204,586. Making alloys. INTERNATIONAL NICKEL Ltd. Jan.22, 1969 [Jan. 30, 1968], No.4799/68. Headings C7A and C7D. An ingot with a columnar crystal structure is produced of an alloy consisting of Al 5-11% Ni 7-25% Co 20-55% Ti 1-11% Cu 0-10% Nb 0-4% Fe (at least 13%) balance, apart from S, C and impurities, by forming a C-containing deoxidised melt of the Fe, Ni, Co and any Cu and Nb from a base charge (of which part may be scrap from a previous melt), but without Al or Ti (except any introduced as scrap), adding the Al and Ti (or remaining Al and Ti) and S to the melt, and casting the melt into a mould with a bottom chill. If the base charge is formed wholly of virgin raw materials, deoxidation is effected with e.g. Al or Si, and C is preferably added after deoxidation and before the addition of the alloying element Al. If the base charge is partly of scrap, no special deoxidation will be necessary, while all C may be introduced by the scrap; otherwise, C is added to the base charge or melt. In the melt, C may range from 0À03-0À25% and S from 0À2-1À2%. Casting is preferably effected at 1550‹ -1700‹ C. into an exothermic mould. Permanent magnets may be made from the columnar portion of the ingot by solution heating (e.g. at 1220‹ C.), rapidly cooling (e.g. in oil), heating in a magnetic field (e.g. at 830‹ C.), and isothermally ageing (e.g. at 570‹ C.).
GB4799/68A 1968-01-30 1968-01-30 Manufacture of permanent magnets Expired GB1204586A (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
GB4799/68A GB1204586A (en) 1968-01-30 1968-01-30 Manufacture of permanent magnets
ES363070A ES363070A1 (en) 1968-01-30 1969-01-21 Manufacture of permanent magnets
US794158*A US3615916A (en) 1968-01-30 1969-01-27 Manufacture of permanent magnets
DE19691903976 DE1903976A1 (en) 1968-01-30 1969-01-28 Process for making permanent magnets
NL6901344A NL6901344A (en) 1968-01-30 1969-01-28
SE01153/69A SE354488B (en) 1968-01-30 1969-01-29
CH143369A CH511287A (en) 1968-01-30 1969-01-30 Manufacturing process of a magnetic ingot
BE727676D BE727676A (en) 1968-01-30 1969-01-30
FR6901989A FR2001000A1 (en) 1968-01-30 1969-01-30
CA041,592A CA939935A (en) 1968-01-30 1969-01-30 Manufacture of permanent magnets

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4799/68A GB1204586A (en) 1968-01-30 1968-01-30 Manufacture of permanent magnets

Publications (1)

Publication Number Publication Date
GB1204586A true GB1204586A (en) 1970-09-09

Family

ID=9784023

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4799/68A Expired GB1204586A (en) 1968-01-30 1968-01-30 Manufacture of permanent magnets

Country Status (10)

Country Link
US (1) US3615916A (en)
BE (1) BE727676A (en)
CA (1) CA939935A (en)
CH (1) CH511287A (en)
DE (1) DE1903976A1 (en)
ES (1) ES363070A1 (en)
FR (1) FR2001000A1 (en)
GB (1) GB1204586A (en)
NL (1) NL6901344A (en)
SE (1) SE354488B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109371334A (en) * 2018-11-14 2019-02-22 江苏万达新能源科技股份有限公司 A kind of high abrasion coating material for lithium battery cutting machine
CN113667861A (en) * 2021-08-23 2021-11-19 中航上大高温合金材料股份有限公司 Smelting method of GH3625 alloy

Also Published As

Publication number Publication date
BE727676A (en) 1969-07-30
DE1903976A1 (en) 1969-09-11
SE354488B (en) 1973-03-12
NL6901344A (en) 1969-08-01
ES363070A1 (en) 1970-12-01
FR2001000A1 (en) 1969-09-19
US3615916A (en) 1971-10-26
CA939935A (en) 1974-01-15
CH511287A (en) 1971-08-15

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 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