GB1113794A - A composite metal member suitable for use as an electrical contact - Google Patents

A composite metal member suitable for use as an electrical contact

Info

Publication number
GB1113794A
GB1113794A GB20859/65A GB2085965A GB1113794A GB 1113794 A GB1113794 A GB 1113794A GB 20859/65 A GB20859/65 A GB 20859/65A GB 2085965 A GB2085965 A GB 2085965A GB 1113794 A GB1113794 A GB 1113794A
Authority
GB
United Kingdom
Prior art keywords
powder
metal
pressed
compact
electrical contact
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
GB20859/65A
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.)
Siemens Schuckertwerke AG
Siemens AG
Original Assignee
Siemens Schuckertwerke AG
Siemens AG
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 Siemens Schuckertwerke AG, Siemens AG filed Critical Siemens Schuckertwerke AG
Publication of GB1113794A publication Critical patent/GB1113794A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C1/00Making non-ferrous alloys
    • C22C1/04Making non-ferrous alloys by powder metallurgy
    • C22C1/0475Impregnated alloys
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/24After-treatment of workpieces or articles
    • B22F3/26Impregnating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F7/00Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F7/00Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
    • B22F7/002Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of porous nature
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F7/00Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
    • B22F7/06Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00Contacts
    • H01H1/02Contacts characterised by the material thereof
    • H01H1/021Composite material
    • H01H1/023Composite material having a noble metal as the basic material
    • H01H1/0231Composite material having a noble metal as the basic material provided with a solder layer
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2998/00Supplementary information concerning processes or compositions relating to powder metallurgy
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00Stock material or miscellaneous articles
    • Y10S428/922Static electricity metal bleed-off metallic stock
    • Y10S428/9265Special properties
    • Y10S428/929Electrical contact feature
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/12All metal or with adjacent metals
    • Y10T428/12014All metal or with adjacent metals having metal particles
    • Y10T428/12021All metal or with adjacent metals having metal particles having composition or density gradient or differential porosity
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/12All metal or with adjacent metals
    • Y10T428/12014All metal or with adjacent metals having metal particles
    • Y10T428/1216Continuous interengaged phases of plural metals, or oriented fiber containing
    • Y10T428/12174Mo or W containing
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/12All metal or with adjacent metals
    • Y10T428/12458All metal or with adjacent metals having composition, density, or hardness gradient

Abstract

A sintered composite metal body such as an electrical contact is made by unilaterally compacting a metal powder such as W,Re,Mo, or their alloys, sintering the compact so as to retain the density variation from one end of the compact to the other and then impregnating the sintered compact with a molten metal such as Cu, Ag or their alloys. The impregnating metal may also contain Ni, Co, Cr, Zn or Sn. Examples are given of the pressing of a powder mixture containing 98.5-93% W, 1-5% Cu and 0.5-2% Ni, a powder mixture containing 89%W, 10% Cu and 1% Ni, sintering at 1150 DEG -1350 DEG C. in vacuo, hydrogen or an inert gas and impregnation with Cu. In a separate embodiment, particularly for shallow compacts the metal powder may be pressed in several layers at the same pressure, or the first layer is pressed at the highest pressure and each succeeding layer is pressed at lower pressures. In this method the powder layers may be of the same or different metals to produce the infiltrated systems M1 -M2 or M1 -M2 -M3 where M1 is W, Re or Mo; M2 is Cu or Ag and M3 is Ni, Co or Cr.
GB20859/65A 1964-05-15 1965-05-17 A composite metal member suitable for use as an electrical contact Expired GB1113794A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES0091084 1964-05-15

Publications (1)

Publication Number Publication Date
GB1113794A true GB1113794A (en) 1968-05-15

Family

ID=7516281

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20859/65A Expired GB1113794A (en) 1964-05-15 1965-05-17 A composite metal member suitable for use as an electrical contact

Country Status (5)

Country Link
US (1) US3360348A (en)
AT (1) AT271920B (en)
CH (1) CH470741A (en)
DE (1) DE1458477B2 (en)
GB (1) GB1113794A (en)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1533374B1 (en) * 1966-06-03 1971-04-08 Siemens Ag PROCESS FOR MANUFACTURING A PENETRATING COMPOSITE METAL
US3429700A (en) * 1966-09-20 1969-02-25 Teleflex Inc Method of producing composite metal articles by uniting two identical shapes
US3404978A (en) * 1967-01-27 1968-10-08 Otto G. Koppius Coinable electrical discharge machine electrode material
US4054449A (en) * 1970-12-04 1977-10-18 Federal-Mogul Corporation Process of making a composite heavy-duty powdered machine element
US3766768A (en) * 1972-06-22 1973-10-23 Western Electric Co Method of and means for commencing a deforming operation, e. g. hydrostatic extrusion of a billet
US3766769A (en) * 1972-06-22 1973-10-23 Western Electric Co Method of and means for commencing a deforming operation, e. g., hydrostatic extrusion of a billet
US3937618A (en) * 1973-07-09 1976-02-10 Franklin Mint Corporation Method for producing bi-metal object and product thereof
DE2357333C3 (en) * 1973-11-16 1980-04-03 Siemens Ag, 1000 Berlin Und 8000 Muenchen Penetration composite metal as contact material for vacuum switches
US3960554A (en) * 1974-06-03 1976-06-01 Westinghouse Electric Corporation Powdered metallurgical process for forming vacuum interrupter contacts
DE2659012C3 (en) * 1976-12-27 1980-01-24 Siemens Ag, 1000 Berlin Und 8000 Muenchen Process for producing a sintered contact material from silver and embedded metal oxides
US4456577A (en) * 1981-09-25 1984-06-26 Osaka Diamond Industrial Company, Ltd. Methods for producing composite rotary dresser
CA1256457A (en) * 1985-05-20 1989-06-27 Michel Chevigne Production of reaction-sintered articles and reaction- sintered articles
DE3842919C2 (en) * 1988-12-21 1995-04-27 Calor Emag Elektrizitaets Ag Switch for a vacuum switch
DE69330341T2 (en) * 1992-09-24 2001-09-20 Toto Ltd MATERIAL WITH DEPENDENT GRADIENT AND THEIR PRODUCTION
US5516995A (en) * 1994-03-30 1996-05-14 Eaton Corporation Electrical contact compositions and novel manufacturing method
US6375708B1 (en) * 1994-12-22 2002-04-23 Osram Sylvania Inc. Alloy for electrical contacts and electrodes and method of making
DE19537657A1 (en) * 1995-10-10 1997-04-17 Abb Patent Gmbh Method and device for producing a contact piece
US9220169B2 (en) * 2007-06-21 2015-12-22 Second Sight Medical Products, Inc. Biocompatible electroplated interconnection electronics package suitable for implantation
DE102015122864A1 (en) * 2015-12-28 2017-06-29 Degudent Gmbh Method of making a blank and dental restoration
DE102016119935A1 (en) * 2016-10-19 2018-04-19 Degudent Gmbh Method for producing a dental restoration
CN107598172A (en) * 2017-07-25 2018-01-19 陕西斯瑞新材料股份有限公司 A kind of preparation method of gradient multi-layer C uCr composite contact materials

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB544969A (en) * 1940-03-27 1942-05-05 Gen Motors Corp Improved porous metal articles and methods of making the same
US2464517A (en) * 1943-05-13 1949-03-15 Callite Tungsten Corp Method of making porous metallic bodies

Also Published As

Publication number Publication date
AT271920B (en) 1969-06-25
DE1458477A1 (en) 1969-01-02
CH470741A (en) 1969-03-31
US3360348A (en) 1967-12-26
DE1458477B2 (en) 1973-05-10

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