ES363070A1 - Manufacture of permanent magnets - Google Patents

Manufacture of permanent magnets

Info

Publication number
ES363070A1
ES363070A1 ES363070A ES363070A ES363070A1 ES 363070 A1 ES363070 A1 ES 363070A1 ES 363070 A ES363070 A ES 363070A ES 363070 A ES363070 A ES 363070A ES 363070 A1 ES363070 A1 ES 363070A1
Authority
ES
Spain
Prior art keywords
melt
scrap
base charge
deoxidation
permanent magnets
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
ES363070A
Other languages
Spanish (es)
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
Publication of ES363070A1 publication Critical patent/ES363070A1/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

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.).
ES363070A 1968-01-30 1969-01-21 Manufacture of permanent magnets Expired ES363070A1 (en)

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
ES363070A1 true ES363070A1 (en) 1970-12-01

Family

ID=9784023

Family Applications (1)

Application Number Title Priority Date Filing Date
ES363070A Expired ES363070A1 (en) 1968-01-30 1969-01-21 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
GB1204586A (en) 1970-09-09
CA939935A (en) 1974-01-15
NL6901344A (en) 1969-08-01
BE727676A (en) 1969-07-30
FR2001000A1 (en) 1969-09-19
CH511287A (en) 1971-08-15
US3615916A (en) 1971-10-26
DE1903976A1 (en) 1969-09-11
SE354488B (en) 1973-03-12

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