EP0294693B1 - Verwendung eines Silber-Eisen-Werkstoffs für elektrische Kontakte - Google Patents

Verwendung eines Silber-Eisen-Werkstoffs für elektrische Kontakte Download PDF

Info

Publication number
EP0294693B1
EP0294693B1 EP88108735A EP88108735A EP0294693B1 EP 0294693 B1 EP0294693 B1 EP 0294693B1 EP 88108735 A EP88108735 A EP 88108735A EP 88108735 A EP88108735 A EP 88108735A EP 0294693 B1 EP0294693 B1 EP 0294693B1
Authority
EP
European Patent Office
Prior art keywords
silver
iron
oxide
electrical contacts
remainder
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
EP88108735A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0294693A3 (en
EP0294693A2 (de
Inventor
Wolfgang Dr. Weise
Roger Wolmer
Peter Dr. Braumann
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
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 filed Critical Degussa GmbH
Priority to AT88108735T priority Critical patent/ATE81734T1/de
Publication of EP0294693A2 publication Critical patent/EP0294693A2/de
Publication of EP0294693A3 publication Critical patent/EP0294693A3/de
Application granted granted Critical
Publication of EP0294693B1 publication Critical patent/EP0294693B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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

Definitions

  • the invention relates to the use of a silver-iron material with further additives for electrical contacts.
  • the essential requirements for an electrical contact material are high erosion resistance, low welding force and low contact resistance.
  • For air-tight switching devices in low-voltage technology e.g. Ag / SnO2 is particularly good for switching currents of 100 - 3000 A due to its high erosion resistance and protection against welding.
  • For lower loads e.g. the composite material Ag / Ni has proven itself. Compared to fine silver, it has an increased erosion resistance without causing a significant increase in contact resistance.
  • Another frequently used composite material is Ag / W, which is characterized by its high resistance to erosion. With frequent switching in air, however, a cover layer of silver tungstate forms, which leads to an increase in the contact resistance.
  • the object is achieved according to the invention by using a silver-iron material with 3 to 30% by weight of iron and one or more of the following additives: manganese, copper, zinc, antimony, bismuth oxide, molybdenum oxide, tungsten oxide, chromium nitride in a total amount of 0. 05 to 5 wt .-% dissolved.
  • These materials surprisingly achieve a reduction in the contact resistance and thus the contact heating, without the inherently good security against welding being impaired.
  • the improvement in contact heating is up to 43% compared to Ag / Fe-90/10.
  • the improvement is achieved by favorably influencing the formation of the Fe oxide layers that form. While the material Ag / Fe-90/10 has a continuous oxide layer without additives, this oxide layer is influenced by the additives mentioned in such a way that there is a low contact resistance combined with good security against welding.
  • a material with 3 - 20% Fe and one or more of the additives Mn, Cu, Zn, Bi, Bi2O3, MoO3, WO3 and / or CrN in a total amount of 0.2 to 2% by weight is particularly suitable. It has also proven useful to add to the silver, in addition to 3 to 20% by weight of iron, either 0.2 to 2% only of metallic additives or 0.2 to 2% of only non-metallic additives.
  • materials that, in addition to 3 to 20% iron, 0.2 to 2%, contain only one of the additives manganese, copper, zinc, antimony, bismuth oxide, molybdenum oxide or tungsten oxide, the rest silver.
  • they preferably contain 0.2 to 2% zinc and optionally 0 to 2% copper, tantalum and / or antimony, the rest silver or 0.2 to 2% molybdenum oxide, the rest silver.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Composite Materials (AREA)
  • Contacts (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Conductive Materials (AREA)
  • Powder Metallurgy (AREA)
EP88108735A 1987-06-06 1988-06-01 Verwendung eines Silber-Eisen-Werkstoffs für elektrische Kontakte Expired - Lifetime EP0294693B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88108735T ATE81734T1 (de) 1987-06-06 1988-06-01 Verwendung eines silber-eisen-werkstoffs fuer elektrische kontakte.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3719052 1987-06-06
DE3719052 1987-06-06

Publications (3)

Publication Number Publication Date
EP0294693A2 EP0294693A2 (de) 1988-12-14
EP0294693A3 EP0294693A3 (en) 1989-03-15
EP0294693B1 true EP0294693B1 (de) 1992-10-21

Family

ID=6329234

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88108735A Expired - Lifetime EP0294693B1 (de) 1987-06-06 1988-06-01 Verwendung eines Silber-Eisen-Werkstoffs für elektrische Kontakte

Country Status (23)

Country Link
US (1) US4859238A (enExample)
EP (1) EP0294693B1 (enExample)
JP (1) JP2680038B2 (enExample)
CN (1) CN1011421B (enExample)
AR (1) AR241971A1 (enExample)
AT (1) ATE81734T1 (enExample)
AU (1) AU1730388A (enExample)
BR (1) BR8802712A (enExample)
CA (1) CA1309278C (enExample)
CS (1) CS275704B6 (enExample)
DE (1) DE3875385D1 (enExample)
DK (1) DK303088A (enExample)
ES (1) ES2035154T3 (enExample)
GR (1) GR3006495T3 (enExample)
HU (1) HUT50262A (enExample)
IN (1) IN167229B (enExample)
MX (1) MX170300B (enExample)
NO (1) NO882389L (enExample)
PL (1) PL156711B1 (enExample)
PT (1) PT87662B (enExample)
RU (1) RU1785579C (enExample)
YU (1) YU46258B (enExample)
ZA (1) ZA883891B (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10012250A1 (de) * 2000-03-14 2001-09-27 Dmc2 Degussa Metals Catalysts Kontaktwerkstoffe auf Basis Silber-Eisen-Kupfer

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE58909449D1 (de) * 1988-04-16 1995-11-02 Duerrwaechter E Dr Doduco Pulvermetallurgisches Verfahren zum Herstellen eines Halbzeugs für elektrische Kontakte aus einem Verbundwerkstoff auf Silberbasis mit Eisen.
DE58904983D1 (de) * 1988-04-20 1993-08-26 Siemens Ag Sinterkontaktwerkstoff auf silberbasis zur verwendung in schaltgeraeten der energietechnik, insbesondere fuer kontaktstuecke in niederspannungsschaltern.
US5286441A (en) * 1989-12-26 1994-02-15 Akira Shibata Silver-metal oxide composite material and process for producing the same
DE4117311A1 (de) * 1991-05-27 1992-12-03 Siemens Ag Kontaktwerkstoff auf silberbasis zur verwendung in schaltgeraeten der energietechnik
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
DE4201940A1 (de) * 1992-01-24 1993-07-29 Siemens Ag Sinterverbundwerkstoff fuer elektrische kontakte in schaltgeraeten der energietechnik
DE4343550A1 (de) * 1993-12-20 1995-06-22 Siemens Ag Kontaktwerkstoff auf Silberbasis zur Verwendung in Schaltgeräten der Energietechnik
JPH0892708A (ja) * 1994-07-28 1996-04-09 Kawasaki Steel Corp 粉末冶金用混合鉄粉および切削性に優れた焼結鋼の製造方法
DE19543222C1 (de) * 1995-11-20 1997-02-20 Degussa Silber-Eisen-Werkstoff für elektrische Schaltkontakte (I)
DE19543223C1 (de) * 1995-11-20 1997-02-20 Degussa Silber-Eisen-Werkstoff für elektrische Schaltkontakte (III)
DE19543208C1 (de) * 1995-11-20 1997-02-20 Degussa Silber-Eisen-Werkstoff für elektrische Schaltkontakte (II)
DE19607183C1 (de) * 1996-02-27 1997-04-10 Degussa Gesinterter Silber-Eisen-Werkstoff für elektrische Kontakte und Verfahren zu seiner Herstellung
JP2001052930A (ja) * 1999-08-06 2001-02-23 Tdk Corp 積層インダクタとその製造方法
JP4427058B2 (ja) * 2004-06-18 2010-03-03 Ｔａｎａｋａホールディングス株式会社 密閉形交流負荷用リレー及びそれに用いるＡｇ系接点素子材料
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
WO2013142765A1 (en) * 2012-03-23 2013-09-26 Technic, Inc. Silver antimony coatings and connectors
CN106238721B (zh) * 2016-08-03 2018-06-19 施海峰 一种复合触点材料及其制备方法
CN107299244B (zh) * 2017-06-09 2019-07-16 佛山通宝精密合金股份有限公司 一种制备高性能AgFeRe材料的方法
CN109777991A (zh) * 2019-03-25 2019-05-21 杭州辰卓科技有限公司 一种电子引线键合用耐腐蚀高阻尼银合金及其工艺
WO2020241854A1 (ja) * 2019-05-31 2020-12-03 オムロン株式会社 Ａｇ合金を主成分とする接点用材料、該接点用材料を用いた接点、及び電気機器
CN114457253B (zh) * 2021-12-30 2022-12-09 无锡日月合金材料有限公司 一种用于微动开关的银镍-氧化铋材料及其制造方法

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2394501A (en) * 1942-09-12 1946-02-05 Square D Co Electrical contact
US2664618A (en) * 1944-04-22 1954-01-05 Fansteel Metallurgical Corp Electrical contact
US3401024A (en) * 1965-10-04 1968-09-10 Mallory & Co Inc P R Electrical contact material
DE2240493C3 (de) * 1972-08-17 1978-04-27 Siemens Ag, 1000 Berlin Und 8000 Muenchen Durchdringungsverbundmetall als Kontaktwerkstoff für Vakuumschalter und Verfahren zu seiner Herstellung
CH588152A5 (enExample) * 1972-12-11 1977-05-31 Siemens Ag
US3992199A (en) * 1973-12-03 1976-11-16 P. R. Mallory & Co., Inc. Method of making electrical contact materials
US3951872A (en) * 1973-12-03 1976-04-20 P. R. Mallory & Co., Inc. Electrical contact material
US3933486A (en) * 1974-02-12 1976-01-20 Chugai Denki Kogyo Kabushiki-Kaisha Silver-metal oxide composite and method of manufacturing the same
US4141727A (en) * 1976-12-03 1979-02-27 Matsushita Electric Industrial Co., Ltd. Electrical contact material and method of making the same
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
JPS5913578B2 (ja) * 1977-01-25 1984-03-30 日本科学冶金株式会社 電気接点材料
US4330331A (en) * 1978-06-16 1982-05-18 Nippon Telegraph And Telephone Public Corporation Electric contact material and method of producing the same
US4294616A (en) * 1979-01-02 1981-10-13 Gte Products Corporation Electrical contacts
JPS57108232A (en) * 1980-12-25 1982-07-06 Tanaka Kikinzoku Kogyo Kk Electrical contact material and its manufacture

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Band nr. 6, Nr. 11 (C-88)(889), 22 January 1982; & JP-A-56133438 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10012250A1 (de) * 2000-03-14 2001-09-27 Dmc2 Degussa Metals Catalysts Kontaktwerkstoffe auf Basis Silber-Eisen-Kupfer
DE10012250B4 (de) * 2000-03-14 2006-06-01 Umicore Ag & Co. Kg Kontaktwerkstoffe auf Basis Silber-Eisen-Kupfer

Also Published As

Publication number Publication date
MX170300B (es) 1993-08-16
DK303088D0 (da) 1988-06-03
PL272879A1 (en) 1989-03-06
ZA883891B (en) 1989-02-22
AU1730388A (en) 1988-12-08
PT87662B (pt) 1992-10-30
ES2035154T3 (es) 1993-04-16
CN1011421B (zh) 1991-01-30
YU46258B (sh) 1993-05-28
JPS6452346A (en) 1989-02-28
NO882389L (no) 1988-12-07
PL156711B1 (pl) 1992-04-30
EP0294693A3 (en) 1989-03-15
GR3006495T3 (enExample) 1993-06-21
EP0294693A2 (de) 1988-12-14
US4859238A (en) 1989-08-22
HUT50262A (en) 1989-12-28
RU1785579C (ru) 1992-12-30
CA1309278C (en) 1992-10-27
IN167229B (enExample) 1990-09-22
AR241971A1 (es) 1993-01-29
NO882389D0 (no) 1988-05-31
DE3875385D1 (de) 1992-11-26
PT87662A (pt) 1988-07-01
DK303088A (da) 1988-12-07
ATE81734T1 (de) 1992-11-15
CN1030098A (zh) 1989-01-04
CS275704B6 (en) 1992-03-18
CS8803853A2 (en) 1991-04-11
YU103288A (en) 1990-04-30
BR8802712A (pt) 1988-12-27
JP2680038B2 (ja) 1997-11-19

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