GB1339965A - Material suitable for use as contact materials - Google Patents

Material suitable for use as contact materials

Info

Publication number
GB1339965A
GB1339965A GB2531571*A GB1339965DA GB1339965A GB 1339965 A GB1339965 A GB 1339965A GB 1339965D A GB1339965D A GB 1339965DA GB 1339965 A GB1339965 A GB 1339965A
Authority
GB
United Kingdom
Prior art keywords
metal
impregnated
sintered
vapour pressure
layer
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
GB2531571*A
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
Priority claimed from DE19702014639 external-priority patent/DE2014639C3/en
Application filed by Siemens AG filed Critical Siemens AG
Publication of GB1339965A publication Critical patent/GB1339965A/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
    • H01H1/0203—Contacts characterised by the material thereof specially adapted for vacuum switches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/24—After-treatment of workpieces or articles
    • B22F3/26—Impregnating
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/02—Contacts characterised by the material thereof
    • H01H2001/0208—Contacts characterised by the material thereof containing rhenium
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/922—Static electricity metal bleed-off metallic stock
    • Y10S428/9265—Special properties
    • Y10S428/929—Electrical contact feature
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12014—All metal or with adjacent metals having metal particles
    • Y10T428/1216—Continuous interengaged phases of plural metals, or oriented fiber containing

Abstract

1339965 Impregnating sintered bodies with metal SIEMENS A G 19 April 1971 [26 March 1970] 25315/71 Heading C7D [Also in Division H1] A material suitable for use as a contact material for vacuum switches is made by providing a sintered metal body having its pores impregnated with a metal of lower melting point, and introducing a metal having a high vapour pressure into said body by liquid diffusion at a temperature lower than the melting point of said lower melting metal by using an auxiliary metal which forms a liquid phase with the lower melting metal and the metal having a high vapour pressure. The quantities of metal and other parameters are such that the auxiliary metal and the metal having a high vapour pressure penetrate only partially into the impregnated sintered body. The sintered body may be made of W, Mo or Re and may be impregnated with Ag or Cu or alloys thereof. Suitable metals having a high vapour pressure are Bi, Pb, Ga and Te and suitable auxiliary metals include Ag, Mg, Si, Cu, Sb, Zn and Cd. In an example by tungsten particles having a size of < 60 Ám are sintered at 1600‹C under a pressure of 2À5 Mp/Cm<SP>2</SP>, and then impregnated with Cu at 1200‹C under hydrogen. A mixture of Ag powder and Bi powder is impregnated at 1000‹ C V the Cu Ag Bi layer formed is machined off to leave a product consisting of a layer of W Cu Ag Bi above a layer of WCu above a layer of Cu 6. In another example, Mo is used to form the sintered body.
GB2531571*A 1970-03-26 1971-04-19 Material suitable for use as contact materials Expired GB1339965A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702014639 DE2014639C3 (en) 1970-03-26 Method of making a heterogeneous interpenetrating composite metal

Publications (1)

Publication Number Publication Date
GB1339965A true GB1339965A (en) 1973-12-05

Family

ID=5766394

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2531571*A Expired GB1339965A (en) 1970-03-26 1971-04-19 Material suitable for use as contact materials

Country Status (3)

Country Link
US (1) US3721550A (en)
CH (1) CH519775A (en)
GB (1) GB1339965A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2253097A (en) * 1991-01-31 1992-08-26 Otter Controls Ltd Electrical contacts.
US5892424A (en) * 1995-02-10 1999-04-06 The Furukawa Electric Co., Ltd. Encapsulated contact material and a manufacturing method therefor, and a manufacturing method and a using method for an encapsulated contact

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2254623C3 (en) * 1972-11-08 1979-09-13 Siemens Ag, 1000 Berlin Und 8000 Muenchen Penetration composite metal as a contact material for vacuum switches with high switching rates
DE2346179A1 (en) * 1973-09-13 1975-06-26 Siemens Ag COMPOSITE METAL AS CONTACT MATERIAL FOR VACUUM SWITCHES
DE2357333C3 (en) * 1973-11-16 1980-04-03 Siemens Ag, 1000 Berlin Und 8000 Muenchen Penetration composite metal as contact material for vacuum switches
US5007475A (en) * 1988-11-10 1991-04-16 Lanxide Technology Company, Lp Method for forming metal matrix composite bodies containing three-dimensionally interconnected co-matrices and products produced thereby
US5126102A (en) * 1990-03-15 1992-06-30 Kabushiki Kaisha Toshiba Fabricating method of composite material
JP2746279B2 (en) * 1990-06-18 1998-05-06 日本タングステン 株式会社 Substrate material for semiconductor device and method of manufacturing the same
DE19612143B4 (en) * 1996-03-27 2005-05-04 Abb Patent Gmbh Method for producing a spiral contact piece for a vacuum chamber and device for carrying out the method
KR100186931B1 (en) * 1996-04-30 1999-04-01 배문한 Method of manufacturing tungsten heavy alloy
CN100475991C (en) * 2002-10-28 2009-04-08 联合材料公司 Composite material, method for producing same and member using same
DE102005003812A1 (en) * 2005-01-27 2006-10-05 Abb Technology Ag Method for producing a contact piece, and contact piece for a vacuum interrupter itself
JP4614908B2 (en) * 2005-05-11 2011-01-19 日立粉末冶金株式会社 Cold cathode fluorescent lamp electrode
CN103688598B (en) * 2011-07-22 2017-06-09 京瓷株式会社 Circuit board and electronic installation

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2253097A (en) * 1991-01-31 1992-08-26 Otter Controls Ltd Electrical contacts.
GB2253097B (en) * 1991-01-31 1995-01-18 Otter Controls Ltd Improvements relating to conductors for electrical connection applications
US5892424A (en) * 1995-02-10 1999-04-06 The Furukawa Electric Co., Ltd. Encapsulated contact material and a manufacturing method therefor, and a manufacturing method and a using method for an encapsulated contact
GB2297867B (en) * 1995-02-10 1999-06-16 Furukawa Electric Co Ltd An encapsulated contact material and a manufacturing method therefor

Also Published As

Publication number Publication date
DE2014639A1 (en) 1971-10-14
CH519775A (en) 1972-02-29
US3721550A (en) 1973-03-20
DE2014639B2 (en) 1972-11-09

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees