GB1415552A - Method of making a magnetic reed member - Google Patents

Method of making a magnetic reed member

Info

Publication number
GB1415552A
GB1415552A GB217873A GB217873A GB1415552A GB 1415552 A GB1415552 A GB 1415552A GB 217873 A GB217873 A GB 217873A GB 217873 A GB217873 A GB 217873A GB 1415552 A GB1415552 A GB 1415552A
Authority
GB
United Kingdom
Prior art keywords
parts
iron
remanent
cobalt
magnetic reed
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
GB217873A
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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 Western Electric Co Inc filed Critical Western Electric Co Inc
Publication of GB1415552A publication Critical patent/GB1415552A/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
    • 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
    • H01H1/0201—Materials for reed contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/64—Protective enclosures, baffle plates, or screens for contacts
    • H01H1/66—Contacts sealed in an evacuated or gas-filled envelope, e.g. magnetic dry-reed contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
    • H01H11/005—Apparatus or processes specially adapted for the manufacture of electric switches of reed switches
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49105—Switch making

Abstract

1415552 Treating magnetic alloys WESTERN ELECTRIC CO Inc 6 Jan 1973 [22 Feb 1972] 2178/73 Heading C7A [Also in Divisions B3A and H1N] A remanent magnetic reed for a sealed magnetic reed contact device in which the remanent alloy contains (by weight) 40 to 75 parts cobalt iron to total 100 parts cobalt and iron and 1-5 parts vanadium based on 100 parts of cobalt, iron and vanadium, is made in a process including the steps of hot working, quenching cold working and phase precipitation hardening comprising annealing for from ¢ to 6 hours in a non-oxidizing atmosphere at 550 to 670‹C to provide the reed with remanent magnetization of at least 10,000 gauss and a coercivity of 10 oersteds. The complete series of operations may be (1) preparation of a melt of the alloy at about 1550‹C for 1 or 2 minutes before cooling, (2) hot working at between 900 and 1250‹C (rolling, swaying or extrusion), (3) softening by heating to at least 750‹C and quenching in less than 1 minute (preferably in ice brine) (4) cold working to a desired dimension followed by steps 5, which is a strand annealing process to produce a wire having a tensile strength of 200,000 p.s.c. and a minimum elongation of 10% during maintainance at 850 to 1050‹C for at least 5 seconds before cooling in a reducing atmosphere. Step 6 is a stamping operation giving a 40% thickness reduction before the phase precipitation (step 7).
GB217873A 1972-02-22 1973-01-16 Method of making a magnetic reed member Expired GB1415552A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00227762A US3805378A (en) 1972-02-22 1972-02-22 Manufacture of remanent reed switch

Publications (1)

Publication Number Publication Date
GB1415552A true GB1415552A (en) 1975-11-26

Family

ID=22854356

Family Applications (1)

Application Number Title Priority Date Filing Date
GB217873A Expired GB1415552A (en) 1972-02-22 1973-01-16 Method of making a magnetic reed member

Country Status (18)

Country Link
US (1) US3805378A (en)
JP (1) JPS5642093B2 (en)
AR (1) AR193572A1 (en)
AT (1) AT337819B (en)
BE (1) BE795715A (en)
BR (1) BR7301238D0 (en)
CA (1) CA987892A (en)
CH (1) CH567790A5 (en)
DK (1) DK143072C (en)
ES (1) ES412277A1 (en)
FR (1) FR2173038B1 (en)
GB (1) GB1415552A (en)
IL (1) IL41586A (en)
IT (1) IT977830B (en)
NL (1) NL160109C (en)
NO (1) NO136323C (en)
SE (1) SE393218B (en)
ZA (1) ZA731216B (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3900807A (en) * 1972-10-30 1975-08-19 Fujitsu Ltd Magnetically controlled switching device
US3959758A (en) * 1973-12-07 1976-05-25 International Standard Electric Corporation Magnetically actuated switching device
SE388713B (en) * 1974-08-22 1976-10-11 Mo Energeticheskij Institut TUNGRELE
US4221163A (en) * 1978-09-01 1980-09-09 Ncr Corporation Magnetic hysteresis driven recording element and method
US4222020A (en) * 1979-04-02 1980-09-09 Gte Automatic Electric Laboratories Incorporated Control winding for a magnetic latching reed relay
US4340434A (en) * 1980-08-18 1982-07-20 Bell Telephone Laboratories, Incorporated High remanence Fe-Mo-Ni alloys for magnetically actuated devices
US4415380A (en) * 1980-08-18 1983-11-15 Bell Telephone Laboratories, Incorporated Method for making a high remanence Fe-Mo-Ni magnetic element
US4377797A (en) * 1980-08-18 1983-03-22 Bell Telephone Laboratories, Incorporated Magnetically actuated device comprising an Fe-Mo-Ni magnetic element
US4337100A (en) * 1980-10-06 1982-06-29 Bell Telephone Laboratories, Incorporated Magnetically anisotropic alloys for magnetically actuated devices
US4401483A (en) * 1980-10-06 1983-08-30 Bell Telephone Laboratories, Incorporated Method for making a magnetically anisotropic element
US4420732A (en) * 1980-10-06 1983-12-13 Bell Telephone Laboratories, Incorporated Magnetically actuated device comprising a magnetically anisotropic element
US4391656A (en) * 1980-10-17 1983-07-05 Bell Telephone Laboratories, Incorporated Isotropic and nearly isotropic permanent magnet alloys
JPS59131800U (en) * 1983-02-23 1984-09-04 松下電器産業株式会社 acoustic lens
JP5365655B2 (en) * 2011-03-16 2013-12-11 株式会社安川電機 Reed switch
US11309140B2 (en) * 2019-01-04 2022-04-19 Littelfuse, Inc. Contact switch coating

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1032722A (en) * 1962-06-04 1966-06-15 Hitachi Ltd Improvements relating to relays having sealed magnetic contact units
GB1054187A (en) * 1962-08-07
US3369291A (en) * 1963-03-14 1968-02-20 Rca Corp Method of making reed switches
US3364449A (en) * 1963-12-18 1968-01-16 Bell Telephone Labor Inc Magnetically actuated switching devices

Also Published As

Publication number Publication date
AR193572A1 (en) 1973-04-30
CH567790A5 (en) 1975-10-15
NL160109B (en) 1979-04-17
FR2173038A1 (en) 1973-10-05
IL41586A (en) 1975-06-25
DE2307970B2 (en) 1975-09-25
DK143072B (en) 1981-03-23
BE795715A (en) 1973-06-18
ATA158973A (en) 1976-11-15
JPS5642093B2 (en) 1981-10-02
AT337819B (en) 1977-07-25
CA987892A (en) 1976-04-27
NL160109C (en) 1979-09-17
US3805378A (en) 1974-04-23
ZA731216B (en) 1974-04-24
FR2173038B1 (en) 1977-07-29
IL41586A0 (en) 1973-04-30
JPS4897044A (en) 1973-12-11
BR7301238D0 (en) 1974-02-19
ES412277A1 (en) 1976-01-01
NO136323C (en) 1977-08-24
DE2307970A1 (en) 1973-09-13
NL7302209A (en) 1973-08-24
AU5225873A (en) 1974-08-22
SE393218B (en) 1977-05-02
DK143072C (en) 1981-11-02
NO136323B (en) 1977-05-09
IT977830B (en) 1974-09-20

Similar Documents

Publication Publication Date Title
GB1415552A (en) Method of making a magnetic reed member
CN105950992B (en) A kind of crystal grain orientation pure iron and method using the manufacture of once cold rolling method
US4093477A (en) Anisotropic permanent magnet alloy and a process for the production thereof
CN109504924A (en) A kind of iron-based amorphous alloy ribbon material and preparation method thereof
US3982972A (en) Semihard magnetic alloy and a process for the production thereof
US4246049A (en) Process for the thermal treatment of Fe-Co-Cr alloys for permanent magnets
US3892605A (en) Method of producing primary recrystallized textured iron alloy member having an open gamma loop
US2534141A (en) Heat-treatment of cold rolled silicon steel strip
ES441611A1 (en) Method for the production of high-permeability magnetic steel
US3954521A (en) Method of producing grain oriented silicon steel
JPS57203718A (en) Manufacture of nondirectional electrical steel plate extremely excellent in its magnetic characteristic
JPS644429A (en) Manufacture of high-strength cold-rolled steel sheet with high (r) value
GB1285998A (en) A process for manufacturing alloy steel wires having low relaxation characteristics
US3024141A (en) Processing magnetic material
KR830001327B1 (en) Method of manufacturing magnetic element made of alloy
GB1483787A (en) Process for producing semi-hard magnetic materials
US4213802A (en) Method of treating a permanent magnet alloy
US4115160A (en) Electromagnetic silicon steel from thin castings
US4950335A (en) Process for producing articles for magnetic use
GB1399293A (en) Process for obtaining copper alloys and alloys so obtained
DE69906513D1 (en) PRODUCTION PROCESS FOR A MAGNETIC MATERIAL BY FORGING AND MAGNETIC MATERIAL IN POWDER FORM
GB945066A (en) Improvements in or relating to a method of making ferromagnetic material from a nickel base alloy
JPS5638420A (en) Manufacture of nonoriented electromagnetic steel strip of excellent magnetism
US2830922A (en) Method of making cast magnetic aluminum-iron alloys and product thereof
DE1180954B (en) Process for improving the magnetic properties of iron-cobalt alloys

Legal Events

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