GB1404803A - Process of producing semi-hard magnetic materials - Google Patents

Process of producing semi-hard magnetic materials

Info

Publication number
GB1404803A
GB1404803A GB3731472A GB3731472A GB1404803A GB 1404803 A GB1404803 A GB 1404803A GB 3731472 A GB3731472 A GB 3731472A GB 3731472 A GB3731472 A GB 3731472A GB 1404803 A GB1404803 A GB 1404803A
Authority
GB
United Kingdom
Prior art keywords
hard magnetic
less
magnetic materials
stress relief
producing semi
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
GB3731472A
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Publication of GB1404803A publication Critical patent/GB1404803A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/02—Contacts characterised by the material thereof
    • H01H1/0201—Materials for reed contacts
    • 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
    • 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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/02—Contacts characterised by the material thereof
    • H01H1/04—Co-operating contacts of different material

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Power Engineering (AREA)
  • Hard Magnetic Materials (AREA)
  • Heat Treatment Of Nonferrous Metals Or Alloys (AREA)

Abstract

1404803 Heat-treating magnetic alloys FUJITSU Ltd 10 Aug 1972 [1 June 1972] 37314/72 Heading C7A [Also in Division H1] A semi-hard magnetic alloy consisting of 73-93 wt per cent Co, 1 to 5% Nb with or without Ta, Ti, V, Zr, Mo, Cr or W, balance Fe, is annealed at not less than 900‹C followed by cold working with a reduction of area not less than 75%; it is then submitted to at least one stress relief treatment during which no precipitation occurs, and at least one treatment during which an intermetallic compound is precipitated. Suitable temperature ranges are 500-700‹C for stress relief and 600-900‹C for precipitation while the ratio of (Ta, Ti, V, Zr, Mo, Cr, W): Nb is preferably less than 30:70. The alloy may be used in read switches.
GB3731472A 1972-06-01 1972-08-10 Process of producing semi-hard magnetic materials Expired GB1404803A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP47053814A JPS5133503B2 (en) 1972-06-01 1972-06-01

Publications (1)

Publication Number Publication Date
GB1404803A true GB1404803A (en) 1975-09-03

Family

ID=12953251

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3731472A Expired GB1404803A (en) 1972-06-01 1972-08-10 Process of producing semi-hard magnetic materials

Country Status (7)

Country Link
JP (1) JPS5133503B2 (en)
CA (1) CA968261A (en)
FR (1) FR2150144A5 (en)
GB (1) GB1404803A (en)
IT (1) IT970831B (en)
NL (1) NL168565C (en)
SE (1) SE385167B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5484822A (en) * 1977-11-29 1979-07-06 Fujitsu Ltd Semi-rigid porcelain material

Also Published As

Publication number Publication date
NL168565C (en) 1982-04-16
CA968261A (en) 1975-05-27
DE2240292B2 (en) 1976-12-09
SE385167B (en) 1976-06-08
JPS5133503B2 (en) 1976-09-20
FR2150144A5 (en) 1973-03-30
NL168565B (en) 1981-11-16
DE2240292A1 (en) 1974-01-03
NL7210990A (en) 1973-12-04
IT970831B (en) 1974-04-20
JPS4910815A (en) 1974-01-30

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years