GB1407253A - Electrical contacts - Google Patents

Electrical contacts

Info

Publication number
GB1407253A
GB1407253A GB4027172A GB4027172A GB1407253A GB 1407253 A GB1407253 A GB 1407253A GB 4027172 A GB4027172 A GB 4027172A GB 4027172 A GB4027172 A GB 4027172A GB 1407253 A GB1407253 A GB 1407253A
Authority
GB
United Kingdom
Prior art keywords
layer
metal
alloy
powder
higher melting
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
GB4027172A
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 AG
Original Assignee
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 AG filed Critical Siemens AG
Publication of GB1407253A publication Critical patent/GB1407253A/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
    • H01H1/021—Composite material
    • H01H1/023—Composite material having a noble metal as the basic material
    • H01H1/0233—Composite material having a noble metal as the basic material and containing carbides
    • 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
    • Y10T29/49117—Conductor or circuit manufacturing
    • Y10T29/49204—Contact or terminal manufacturing
    • Y10T29/49206—Contact or terminal manufacturing by powder metallurgy
    • 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
    • Y10T29/49117—Conductor or circuit manufacturing
    • Y10T29/49204—Contact or terminal manufacturing
    • Y10T29/49208—Contact or terminal manufacturing by assembling plural parts
    • Y10T29/4921—Contact or terminal manufacturing by assembling plural parts with bonding
    • Y10T29/49211—Contact or terminal manufacturing by assembling plural parts with bonding of fused material
    • Y10T29/49213—Metal
    • Y10T29/49215—Metal by impregnating a porous mass

Abstract

1407253 Sintered two layer electric contacts SIEMENS AG 30 Aug 1972 [1 Sept 1971] 40271/72 Addition to 1406662 Heading C7D Sintered electric contacts are made by placing a green two layer metal powder compact on a profiled ceramic plate with the lower melting point layer in contact with the ceramic and sintering at a temperature intermediate the melting points of the two layers, the higher melting point layer containing Ag or Cu and a higher melting metal. The lower melting layer comprises Ag or Cu as the metal, compound or alloy and the higher melting layer comprises at least one of W, Re, Mo as metal, compound e.g. carbides or alloy and at least one of Ag, Cu or an alloy of Ag or Cu with Ni or Fe or Co. The green compact may be formed either by compacting the two powder layers in a die or by compacting one layer prior to charging the second powder layer and recompacting.
GB4027172A 1971-09-01 1972-08-30 Electrical contacts Expired GB1407253A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2143844A DE2143844C3 (en) 1971-09-01 1971-09-01 Process for the production of two-layer contact pieces as a molded part

Publications (1)

Publication Number Publication Date
GB1407253A true GB1407253A (en) 1975-09-24

Family

ID=5818395

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4027172A Expired GB1407253A (en) 1971-09-01 1972-08-30 Electrical contacts

Country Status (8)

Country Link
US (1) US3864827A (en)
JP (1) JPS5138062B2 (en)
AT (1) AT318053B (en)
CH (1) CH562649A5 (en)
DE (1) DE2143844C3 (en)
FR (1) FR2151009B1 (en)
GB (1) GB1407253A (en)
IT (1) IT964329B (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2718975C3 (en) * 1977-04-28 1981-11-26 SIEMENS AG AAAAA, 1000 Berlin und 8000 München Method for producing a contact bridge
US4162160A (en) * 1977-08-25 1979-07-24 Fansteel Inc. Electrical contact material and method for making the same
US4270266A (en) * 1978-09-14 1981-06-02 General Motors Corporation Method of making a dielectric containing material for RF suppression
JPS5688209A (en) * 1979-12-21 1981-07-17 Tokyo Shibaura Electric Co Electric contactor
US4412642A (en) * 1982-03-15 1983-11-01 Western Electric Co., Inc. Cast solder leads for leadless semiconductor circuits
JPS6054124A (en) * 1983-09-02 1985-03-28 株式会社日立製作所 Vacuum breaker
FR2601186B1 (en) * 1986-07-01 1995-06-23 Sprague France POROUS TANTALUM ANODE FOR TANTALUM CAPACITOR AND MANUFACTURING METHOD THEREOF
US5020217A (en) * 1990-02-06 1991-06-04 General Electric Company Methods for fabricating an electrical contact
US5831186A (en) * 1996-04-01 1998-11-03 Square D Company Electrical contact for use in a circuit breaker and a method of manufacturing thereof
DE102008056263A1 (en) * 2008-11-06 2010-05-27 Ami Doduco Gmbh Process for producing a semifinished product and semifinished product for electrical contacts and contact piece
DE102008056264A1 (en) * 2008-11-06 2010-05-27 Ami Doduco Gmbh Process for producing a semifinished product and semifinished product for electrical contacts and contact piece
DE102011111300A1 (en) * 2011-08-26 2013-02-28 Umicore Ag & Co. Kg Process for producing a semifinished product for electrical contacts and contact piece
CN102522229B (en) * 2011-12-30 2014-10-29 浙江天银合金技术有限公司 Production process of silver-tungsten carbide and silver-nickel-copper compounded electric contact
CN102737864B (en) * 2012-06-29 2015-04-08 浙江天银合金技术有限公司 Silver tungsten carbon graphite electric contact terminal and production process thereof
CN103762099B (en) * 2013-12-20 2016-06-22 宁波赛特勒电子有限公司 A kind of money base composite oxides electric contact material and application thereof
EP3694676B1 (en) * 2017-10-11 2022-11-23 Magna International Inc. Welding electrode with radial-serrated weld face ; method of using such welding electrode for welding a workpiece ; system for and method of forming or reforming the weld face of such welding electrode

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2641670A (en) * 1950-08-22 1953-06-09 Gibson Electric Company Serrated contact
US2694126A (en) * 1952-02-28 1954-11-09 Westinghouse Electric Corp Electrical contact member
FR1079067A (en) * 1952-02-28 1954-11-25 Westinghouse Electric Corp Electrical contacts
US3254189A (en) * 1961-05-15 1966-05-31 Westinghouse Electric Corp Electrical contact members having a plurality of refractory metal fibers embedded therein
DE1209223B (en) * 1961-09-26 1966-01-20 Siemens Ag Sintered contact bodies with two or more layers
DE1248303B (en) * 1962-03-15 1967-08-24 Siemens Ag Electrical, easily solderable two-layer sintered contact body with great welding security
US3359623A (en) * 1965-05-13 1967-12-26 Talon Inc Method for making refractory metal contacts having integral welding surfaces thereon
FR1488488A (en) * 1965-07-20 1967-11-02
DE1558647B2 (en) * 1967-08-05 1972-03-09 Siemens Ag HETEROGENIC PENETRATING COMPOSITE METAL AS CONTACT MATERIAL FOR VACUUM SWITCHES
US3511953A (en) * 1968-06-06 1970-05-12 Guardian Electric Mfg Co Silver rhenium electric contacts

Also Published As

Publication number Publication date
IT964329B (en) 1974-01-21
FR2151009B1 (en) 1976-01-23
DE2143844C3 (en) 1979-09-13
DE2143844A1 (en) 1973-04-12
JPS5138062B2 (en) 1976-10-19
JPS4857165A (en) 1973-08-10
AT318053B (en) 1974-09-25
FR2151009A1 (en) 1973-04-13
CH562649A5 (en) 1975-06-13
US3864827A (en) 1975-02-11
DE2143844B2 (en) 1973-11-15

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Legal Events

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