EP0774529B1 - Silber-Eisen-Werkstoff für elektrische Schaltkontakte (I) - Google Patents

Silber-Eisen-Werkstoff für elektrische Schaltkontakte (I) Download PDF

Info

Publication number
EP0774529B1
EP0774529B1 EP96117210A EP96117210A EP0774529B1 EP 0774529 B1 EP0774529 B1 EP 0774529B1 EP 96117210 A EP96117210 A EP 96117210A EP 96117210 A EP96117210 A EP 96117210A EP 0774529 B1 EP0774529 B1 EP 0774529B1
Authority
EP
European Patent Office
Prior art keywords
oxide
silver
iron
materials
oxidic
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 - Lifetime
Application number
EP96117210A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0774529A1 (de
Inventor
Wolfgang Dr. Weise
Willi Malikowski
Roger Wolmer
Peter Dr. Braumann
Andreas Koffler
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.)
Evonik Operations GmbH
Original Assignee
Degussa GmbH
Degussa Huels 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 Degussa GmbH, Degussa Huels AG filed Critical Degussa GmbH
Publication of EP0774529A1 publication Critical patent/EP0774529A1/de
Application granted granted Critical
Publication of EP0774529B1 publication Critical patent/EP0774529B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • H01H1/0237Composite material having a noble metal as the basic material and containing oxides
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C32/00Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
    • C22C32/001Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides
    • C22C32/0015Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides with only single oxides as main non-metallic constituents
    • C22C32/0021Matrix based on noble metals, Cu or alloys thereof

Definitions

  • the invention relates to silver-iron materials with others oxidic additives for electrical switch contacts.
  • Contact materials for use in electrical Energy technology must have high erosion resistance, low Show welding force and low contact resistance.
  • Nickel especially harmful in the form of dusts Can have an impact on the human organism.
  • Iron is an alternative to nickel been proposed.
  • DE-OS 38 16 895 uses a silver-iron material described for electrical contacts, the in addition to silver, 3 to 30% by weight of iron and a total of 0.05 to 5% by weight of one or more of the additives manganese, copper, Zinc, antimony, bismuth oxide, molybdenum oxide, tungsten oxide and Contains chromium nitride. These materials show a clearly better overtemperature behavior with a good service life compared to simple silver-iron materials, however still below the values of corresponding silver-nickel materials.
  • contact materials are disclosed that next to Silver 5 to 50% by weight iron and up to 5% by weight one or several of the oxides titanium oxide, zirconium oxide, niobium oxide, Tantalum oxide, molybdenum oxide, tungsten oxide, manganese oxide, May contain copper oxide and zinc oxide.
  • a contact material is known, in addition to Silver contains iron oxide, zirconium oxide and tungsten oxide.
  • EP-PS 0 586 411 is a contact material made of silver with 1 to 50 wt.% iron and 0.01 to 5 wt.% rhenium described.
  • Contact materials are known from JP-A-06 100 965 which contain silver, 0.1 to 15% by weight of iron and less than 10% by weight of Cd, Sn, Sb, Zn, In, Bi and / or Te.
  • An internally oxidized alloy powder made of silver with 0.05 to 10% by weight of Cd, Sn, Sb, Zn, In, Bi and / or Te is mixed with iron powder and sintered.
  • the Materials made from 0.5 to 4.5% by weight iron and 0.05 to 2% by weight of one or more of the oxidic additives
  • the materials are 0.2 to 1.2% by weight magnesium oxide, calcium oxide, yttrium oxide, Lanthanum oxide, titanium oxide, zirconium oxide, hafnium oxide, Cerium oxide, niobium oxide, tantalum oxide, aluminum oxide and Contain silicon oxide.
  • the iron content is between 0.5 and 2.5% by weight.
  • the silver-iron materials used so far with others Additives normally contained between 10 and 20% by weight Iron. But it has been shown that with the reduction an improvement in the iron content Overheating behavior goes hand in hand. But at the same time the welding behavior and the service life with decreasing Iron content worsened. Surprisingly, it did it has now been shown that by adding the oxides mentioned in Amounts between 0.05 to 2% by weight of the service life and Welding safety increases disproportionately, without the Overtemperature value deteriorates. It is for the overtemperature behavior is advantageous if the Iron content is below 4.5%.
  • the materials are resistance weldable and connections with Copper base materials show high Connection strengths. Have proven particularly successful Materials whose iron content is less than 2.5% by weight and the The amount of oxidic additives is less than 1.2% by weight.
  • the materials can be manufactured economically and are in all switching characteristics with the Silver-nickel tooling comparable, especially the Overtemperature shows values that also Achieve silver-nickel materials.
  • the materials are manufactured using powder metallurgy by mixing the appropriate powder, cold isostatic Pressing, sintering and extrusion into wires or Profiles.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Composite Materials (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Contacts (AREA)
EP96117210A 1995-11-20 1996-10-26 Silber-Eisen-Werkstoff für elektrische Schaltkontakte (I) Expired - Lifetime EP0774529B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19543222A DE19543222C1 (de) 1995-11-20 1995-11-20 Silber-Eisen-Werkstoff für elektrische Schaltkontakte (I)
DE19543222 1995-11-20

Publications (2)

Publication Number Publication Date
EP0774529A1 EP0774529A1 (de) 1997-05-21
EP0774529B1 true EP0774529B1 (de) 2000-03-29

Family

ID=7777924

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96117210A Expired - Lifetime EP0774529B1 (de) 1995-11-20 1996-10-26 Silber-Eisen-Werkstoff für elektrische Schaltkontakte (I)

Country Status (5)

Country Link
US (1) US5841044A (ja)
EP (1) EP0774529B1 (ja)
JP (1) JPH09171735A (ja)
DE (2) DE19543222C1 (ja)
ES (1) ES2146825T3 (ja)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW517095B (en) * 1999-04-23 2003-01-11 Tanaka Precious Metal Ind Co L Method for producing Ag-ZnO electric contact material and electric contact material produced thereby
WO2002044437A2 (en) 2000-11-02 2002-06-06 Composite Tool Company, Inc. High strength alloys and methods for making same
US7766844B2 (en) * 2004-04-21 2010-08-03 Smith & Nephew, Inc. Surgical instrument aspiration valve
US20060102228A1 (en) * 2004-11-12 2006-05-18 Ferro Corporation Method of making solar cell contacts
US8093491B2 (en) 2005-06-03 2012-01-10 Ferro Corporation Lead free solar cell contacts
WO2008116478A1 (de) * 2007-03-23 2008-10-02 Siemens Aktiengesellschaft Schutzgasgemisch und verfahren zum schweissen
WO2009029738A1 (en) * 2007-08-31 2009-03-05 Ferro Corporation Layered contact structure for solar cells
JP5342931B2 (ja) 2009-06-05 2013-11-13 マブチモーター株式会社 摺動接点材料及びクラッド複合材並びにモーター
CN101794636B (zh) * 2010-02-02 2011-08-10 福达合金材料股份有限公司 一种银氧化铁电接触材料的制备方法
EP3978638A4 (en) * 2019-05-31 2023-09-06 OMRON Corporation CONTACT MATERIAL AND CONTAINING AG ALLOY AS MAIN COMPONENT, CONTACT USING SAID CONTACT MATERIAL, AND ELECTRICAL DEVICE
CN110499435B (zh) * 2019-09-20 2021-07-09 昆明贵金属研究所 一种银基电接触材料及其制备方法
CN112760513B (zh) * 2020-12-30 2022-04-15 宁波东大神乐电工合金有限公司 一种银氧化锡电触头材料及其制备工艺
JP7382382B2 (ja) * 2021-12-24 2023-11-16 マブチモーター株式会社 モーターブラシ用の摺動接点材料及びモーターブラシ並びに直流モーター

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1139281B (de) * 1954-07-14 1962-11-08 Degussa Verbundwerkstoff fuer elektrische Kontakte
DE1539879B2 (de) * 1966-11-19 1971-03-11 Fa Dr Eugen Durrwachter Doduco, 7530 Pforzheim Durch kaltpress schweissen von drahtstueckken hergestellter bimetallkontaktniet
US3930849A (en) * 1973-05-24 1976-01-06 P. R. Mallory & Co., Inc. Electrical contact material of the ag-cdo type and method of making same
US3951872A (en) * 1973-12-03 1976-04-20 P. R. Mallory & Co., Inc. Electrical contact material
DE2659012C3 (de) * 1976-12-27 1980-01-24 Siemens Ag, 1000 Berlin Und 8000 Muenchen Verfahren zum Herstellen eines Sinterkontaktwerkstoffes aus Silber und eingelagerten Metalloxiden
MX149630A (es) * 1977-06-20 1983-12-06 Chugai Electric Ind Co Ltd Mejoras en metodo para fabricar un contacto electrico
US4279649A (en) * 1978-06-16 1981-07-21 Nippon Telegraph And Telephone Public Corporation Electrical contact material
US4256489A (en) * 1979-01-10 1981-03-17 The Boeing Company Low wear high current density sliding electrical contact material
YU46258B (sh) * 1987-06-06 1993-05-28 Degussa Ag. Primena srebrno gvozdenog materijala za električne kontakte
DE3816895A1 (de) * 1987-06-06 1988-12-22 Degussa Verwendung eines silber-eisen-werkstoffs fuer elektrische kontakte
DE3911904A1 (de) * 1988-04-16 1989-12-14 Duerrwaechter E Dr Doduco Pulvermetallurgisches verfahren zum herstellen eines halbzeugs fuer elektrische kontakte aus einem verbundwerkstoff auf silberbasis mit eisen
WO1989010417A1 (en) * 1988-04-20 1989-11-02 Siemens Aktiengesellschaft Sintered contact material based on silver for use in power engineering switchgear, in particular for contact pieces in low-voltage switches
US4954170A (en) * 1989-06-30 1990-09-04 Westinghouse Electric Corp. Methods of making high performance compacts and products
DE4117312A1 (de) * 1991-05-27 1992-12-03 Siemens Ag Kontaktwerkstoff auf silberbasis zur verwendung in schaltgeraeten der energietechnik sowie verfahren zur herstellung von kontaktstuecken aus diesem werkstoff
JPH06100965A (ja) * 1992-09-22 1994-04-12 Tokuriki Honten Co Ltd 電気接点材料
JPH06100963A (ja) * 1992-09-22 1994-04-12 Tokuriki Honten Co Ltd 電気接点材料
DE4343550A1 (de) * 1993-12-20 1995-06-22 Siemens Ag Kontaktwerkstoff auf Silberbasis zur Verwendung in Schaltgeräten der Energietechnik

Also Published As

Publication number Publication date
US5841044A (en) 1998-11-24
ES2146825T3 (es) 2000-08-16
JPH09171735A (ja) 1997-06-30
DE19543222C1 (de) 1997-02-20
EP0774529A1 (de) 1997-05-21
DE59604827D1 (de) 2000-05-04

Similar Documents

Publication Publication Date Title
EP0294693B1 (de) Verwendung eines Silber-Eisen-Werkstoffs für elektrische Kontakte
EP0774529B1 (de) Silber-Eisen-Werkstoff für elektrische Schaltkontakte (I)
EP0170812B1 (de) Verfahren zur Herstellung von Sinterkontaktwerkstoffen
EP0586410B1 (de) Kontaktwerkstoff auf silberbasis zur verwendung in schaltgeräten der energietechnik sowie verfahren zur herstellung von kontaktstücken aus diesem werkstoff
EP0795367B1 (de) Gesinterter Silber-Eisen-Werkstoff für elektrische Kontakte und Verfahren zu seiner Herstellung
DE19503182C1 (de) Sinterwerkstoff auf der Basis Silber-Zinnoxid für elektrische Kontakte und Verfahren zu dessen Herstellung
EP2644723B1 (de) Verbundwerkstoff
EP0152606B1 (de) Kontaktwerkstoff und Herstellung von Kontaktstücken
EP0586411B1 (de) Kontaktwerkstoff auf silberbasis zur verwendung in schaltgeräten der energietechnik sowie verfahren zur herstellung von kontaktstücken aus diesem werkstoff
EP0715765B1 (de) Kontaktwerkstoff auf silber-basis, verwendung eines solchen kontaktwerkstoffes in einem schaltgerät der energietechnik und verfahren zur herstellung des kontaktwerkstoffes
EP0774523B1 (de) Silber-Eisen-Werkstoff für elektrische Schaltkontakte (III)
EP0736216B1 (de) Kontaktwerkstoff auf silberbasis zur verwendung in schaltgeräten der energietechnik
EP0369283B1 (de) Sinterkontaktwerkstoff für Niederspannungsschaltgeräte der Energietechnik, insbesondere für Motorschütze
DE19543208C1 (de) Silber-Eisen-Werkstoff für elektrische Schaltkontakte (II)
DE3816895C2 (ja)
DE69614489T2 (de) Kontaktmaterial für Vakuumschalter und Verfahren zu dessen Herstellung
EP0369282B1 (de) Niederspannungsschaltgeräte-Sinterkontaktwerkstoff der Energietechnik, insbesondere für Motorschütze
EP0164664B1 (de) Sinterkontaktwerkstoff für Niederspannungsschaltgeräte der Energietechnik
EP0623240B1 (de) Sinterverbundwerkstoff für elektrische kontakte in schaltgeräten der energietechnik und verfahren zu dessen herstellung
DE10012250B4 (de) Kontaktwerkstoffe auf Basis Silber-Eisen-Kupfer
DE3116442A1 (de) "sinterkontaktwerkstoff"
EP0448757A1 (de) Silber-Kontaktwerkstoff
DE3314652C2 (de) Silber-Metalloxid-Legierung und ihre Verwendung als elektrischer Kontaktwerkstoff
DE3232627A1 (de) Werkstoff fuer elektrische kontakte
DE19503183A1 (de) Werkstoff aus Silber-Eisen für elektrische Kontakte und Verfahren zu seiner Herstellung

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE ES FR GB IT

17P Request for examination filed

Effective date: 19970411

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: DEGUSSA-HUELS AKTIENGESELLSCHAFT

17Q First examination report despatched

Effective date: 19990611

RAP3 Party data changed (applicant data changed or rights of an application transferred)

Owner name: DEGUSSA-HUELS AKTIENGESELLSCHAFT

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES FR GB IT

REF Corresponds to:

Ref document number: 59604827

Country of ref document: DE

Date of ref document: 20000504

ITF It: translation for a ep patent filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20000607

ET Fr: translation filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2146825

Country of ref document: ES

Kind code of ref document: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20051014

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20051017

Year of fee payment: 10

Ref country code: ES

Payment date: 20051017

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20061031

Year of fee payment: 11

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20061026

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20070629

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20061026

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20061027

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20061031

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20061027

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20081022

Year of fee payment: 13

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20071026

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100501