EP0145924B1 - Matériau pour contacts à courant faible - Google Patents

Matériau pour contacts à courant faible Download PDF

Info

Publication number
EP0145924B1
EP0145924B1 EP84113310A EP84113310A EP0145924B1 EP 0145924 B1 EP0145924 B1 EP 0145924B1 EP 84113310 A EP84113310 A EP 84113310A EP 84113310 A EP84113310 A EP 84113310A EP 0145924 B1 EP0145924 B1 EP 0145924B1
Authority
EP
European Patent Office
Prior art keywords
weight
gold
materials
silver
palladium
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
EP84113310A
Other languages
German (de)
English (en)
Other versions
EP0145924A3 (en
EP0145924A2 (fr
Inventor
Horst Dr. Dipl.-Phys. Heidsiek
Hartmut Dipl.-Ing. Schmidt
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
Publication of EP0145924A2 publication Critical patent/EP0145924A2/fr
Publication of EP0145924A3 publication Critical patent/EP0145924A3/de
Application granted granted Critical
Publication of EP0145924B1 publication Critical patent/EP0145924B1/fr
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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/03—Contact members characterised by the material, e.g. plating, or coating materials
    • 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
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12771—Transition metal-base component
    • Y10T428/12861—Group VIII or IB metal-base component
    • Y10T428/12875—Platinum group metal-base component

Definitions

  • the invention relates to materials for low-voltage contacts, in particular for plug-in connections and sliding contacts, which are applied in a thin layer over a nickel intermediate layer to a base metal base, consisting of an alloy of palladium, gold, silver, iridium and / or osmium and base metals.
  • So-called connectors are available to a considerable extent in electronic devices. They ensure that defective assemblies are replaced quickly when contact is made safely. With the advancing performance of electronic devices, the demands on the quality of the materials of such connectors have changed. While only a few years ago considerable electrical loads flowed through the contacts, today only very small currents and voltages in the micro and nano range are often transmitted. In addition, the increasing miniaturization of the components and thus also the plug connector on the one hand and the increasing air pollution on the other hand have exacerbated the problem of the resistance to tarnishing of the contacts used.
  • the contact materials In addition to good resistance to the formation of foreign layers, the contact materials must also have good wear resistance. While in the early years low-voltage contacts were massively manufactured or the corresponding materials were at least used in thick layers, the price development for precious metals forced the use of increasingly thin layers down to layer thicknesses of 1 ⁇ m and less. The material of such thin layers must therefore have special wear resistance.
  • high gold content alloys can meet high requirements with regard to resistance to foreign layers. Alloys of gold and silver with more than 70% by weight of gold have proven particularly useful. High-quality alloys are also known which contain copper and / or nickel in addition to gold and silver, but even these alloys are often not sufficiently corrosion-resistant despite their high gold content, since the copper tends to form both sulfide and oxide. In addition, given the high gold prices, the high proportion of gold is a significant economic shortage.
  • Low gold contact materials for low current contacts are known from DE-PS 1089491. These contain 25 to 35% by weight of gold, 35 to 45% by weight of silver and 25 to 35% by weight of palladium. However, these materials also form foreign layers in today's air pollution and are also not resistant to abrasion.
  • a carrier made of a base metal material consisting of an alloy of palladium, gold, silver, iridium and / or osmium and base metals that have good tarnish resistance and good wear resistance with the lowest possible gold content.
  • This object was achieved according to the invention in that, from 33 to 50% by weight of palladium, 18 to 40% by weight of silver, 19 to 33% by weight of gold, 0.01 to 1% by weight of iridium and / or osmium and either 0, 5 to 5% by weight of lead or 0.5 to 3% by weight of lead and 0.1 to 3% by weight of tin.
  • the materials preferably consist of 33 to 45% by weight of palladium, 25 to 40% by weight of silver, 20 to 30% by weight of gold, 0.01 to 1% by weight of iridium and / or osmium and either 0.5 to 4% by weight .% Lead or 0.5 to 2% by weight of lead and 0.2 to 2% by weight of tin.
  • these materials show very good tarnish resistance, i.e. They are resistant to the formation of foreign layers, despite a gold content of less than 33% by weight, have a very high wear resistance and do not experience any increase in the electrical contact resistance when stored at 125 ° C for a long time. They can also be easily plated onto base metal substrates with a nickel intermediate layer.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Composite Materials (AREA)
  • Materials Engineering (AREA)
  • Contacts (AREA)
  • Conductive Materials (AREA)

Claims (2)

1°) Matériaux pour contacts pour courants de faible intensité, en particulier pour connexions par enfichage et pour contacts à frottement, qui sont déposés en couche mince sur une couche intermédiaire d'un support en matière métallique non précieuse, constitué d'un alliage de palladium, or, argent, iridium et/ou osmium et de métaux non précieux, caractérisés en ce qu'ils sont constitués de 33 à 50 % en poids de palladium, 18 à 40 % en poids d'argent, 19 à 33 % en poids d'or, 0,01 à 1 % en poids d'iridium et/ou d'osmium, et soit de 0,5 à 5 % de plomb, soit 0,5 à 3 % en poids de plomb et 0,1 à 3 % en poids d'étain.
2°) Matériaux suivant la revendication 1, caractérisés en ce qu'ils sont constitués de 33 à 45 % en poids de palladium, 25 à 40 % en poids d'argent, 20 à 30 % en poids d'or, 0,01 à 1 % en poids d'iridium et/ou d'osmium, et, ou 0,5 à 4 % en poids de plomb, ou 0,5 à 2 % en poids de plomb et 0,2 à 2 % en poids d'etain.
EP84113310A 1983-12-14 1984-11-06 Matériau pour contacts à courant faible Expired EP0145924B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3345162A DE3345162C1 (de) 1983-12-14 1983-12-14 Werkstoffe für Schwachstromkontakte
DE3345162 1983-12-14

Publications (3)

Publication Number Publication Date
EP0145924A2 EP0145924A2 (fr) 1985-06-26
EP0145924A3 EP0145924A3 (en) 1985-08-07
EP0145924B1 true EP0145924B1 (fr) 1987-04-29

Family

ID=6216879

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84113310A Expired EP0145924B1 (fr) 1983-12-14 1984-11-06 Matériau pour contacts à courant faible

Country Status (5)

Country Link
US (1) US4579787A (fr)
EP (1) EP0145924B1 (fr)
JP (1) JPS60146414A (fr)
CA (1) CA1218881A (fr)
DE (2) DE3345162C1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3420231C1 (de) * 1984-05-30 1985-01-03 Degussa Ag, 6000 Frankfurt Silberreiche Werkstoffe fuer Schwachstromkontakte
CA1264871A (fr) * 1986-02-27 1990-01-23 Makoto Hori Dispositif a semiconducteur de ceramique a coefficient de temperature positif a electrode en alliage d'argent et de palladium
DE3621779A1 (de) * 1986-06-28 1988-01-14 Degussa Werkstoff fuer elektrische schwachstromkontakte
FR2617191B1 (fr) * 1987-06-26 1989-12-08 Louyot Comptoir Lyon Alemand Nouveaux alliages a base de palladium contenant au moins un element d'addition choisi parmi le groupe consistant de l'indium, l'antimoine, le bismuth, le cadmium, le zinc, le cuivre et l'argent, notamment utilisables dans l'industrie verriere et utilisation de ces alliages dans l'industrie verriere
JPH01132072A (ja) * 1987-11-18 1989-05-24 Yazaki Corp 端子、接点等の金メッキ部品
US20070260282A1 (en) * 2003-09-12 2007-11-08 Taylor William J Feedthrough apparatus with noble metal-coated leads
US7966070B2 (en) * 2003-09-12 2011-06-21 Medtronic, Inc. Feedthrough apparatus with noble metal-coated leads
US20060247714A1 (en) * 2005-04-28 2006-11-02 Taylor William J Glass-to-metal feedthrough seals having improved durability particularly under AC or DC bias
EP1796115A3 (fr) * 2005-12-12 2009-03-18 Greatbatch Ltd. Ensemble de condensateur filtre du type traversé avec broches de contact à prix réduit

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1248621A (en) * 1917-10-08 1917-12-04 Electro Metals Products Company Metal alloy.
BE452819A (fr) * 1938-04-30
US2241262A (en) * 1939-10-26 1941-05-06 Baker & Co Inc Electrical contact
US2300286A (en) * 1941-05-08 1942-10-27 Fansteel Metallurgical Corp Electrical contact
US2418710A (en) * 1944-11-10 1947-04-08 Mallory & Co Inc P R Electric contact and brush
NL92647C (fr) * 1954-03-02
DE1089491B (de) * 1957-12-06 1960-09-22 Degussa Kontaktmaterial fuer Schwachstrom-kontakte
US3981724A (en) * 1974-11-06 1976-09-21 Consolidated Refining Company, Inc. Electrically conductive alloy
DE2540956C3 (de) * 1975-09-13 1978-06-08 W.C. Heraeus Gmbh, 6450 Hanau Goldlegierung als Werkstoff für elektrische Kontakte
DE2637807C3 (de) * 1976-08-21 1981-11-19 W.C. Heraeus Gmbh, 6450 Hanau Verwendung einer Gold-Legierung für Schwachstrom-Kontakte
DE2940772C2 (de) * 1979-10-08 1982-09-09 W.C. Heraeus Gmbh, 6450 Hanau Elektrischer Schwachstromkontakt
DE3146794C2 (de) * 1981-11-26 1985-07-04 Degussa Ag, 6000 Frankfurt Edelmetall-Legierung zum Aufbrennen von Dentalporzellan

Also Published As

Publication number Publication date
DE3463425D1 (en) 1987-06-04
EP0145924A3 (en) 1985-08-07
DE3345162C1 (de) 1984-11-15
CA1218881A (fr) 1987-03-10
JPS60146414A (ja) 1985-08-02
US4579787A (en) 1986-04-01
EP0145924A2 (fr) 1985-06-26

Similar Documents

Publication Publication Date Title
EP0882143B1 (fr) Fiches males pour equipement electronique
DE2540943A1 (de) Elektrischer steckkontakt
EP1157820B1 (fr) Bande métallique à haute conductibilité électrique et connecteur fabriqué avec ce produit
DE10152029A1 (de) Schiebekontakt-Detektor
EP0525222B1 (fr) Pièce de contact glissant pour densités de courant élevées
EP1158618B1 (fr) Bande métallique à haute conductibilité électrique et connecteur fabriqué avec ce produit
DE4443461C1 (de) Band- bzw. drahtförmiges Verbundmaterial und seine Verwendung
DE1078774B (de) Elektrischer Kontakt
EP0145924B1 (fr) Matériau pour contacts à courant faible
DE2637807C3 (de) Verwendung einer Gold-Legierung für Schwachstrom-Kontakte
EP1421651B1 (fr) Contact electrique
DE2419102C3 (de) Schaltvorrichtung mit Kontakten
DE1232282B (de) Verfahren zum Verbinden eines elektrischen Kontaktkoerpers mit einem metallischen Kontakttraeger
DE2540944B2 (de) Kontaktkoerper fuer einen elektrischen steckkontakt
DE102018208116A1 (de) Kupferband zur Herstellung von elektrischen Kontakten und Verfahren zur Herstellung eines Kupferbandes und Steckverbinder
DE2914880A1 (de) Verfahren zur elektrolytischen abscheidung von silber- und silberlegierungsschichten
EP0163904B1 (fr) Matière argentifère pour contacts à courant faible
DE10139953A1 (de) Werkstoff für ein Metallband
EP0448757A1 (fr) Matériel de contact en argent
DE1224938B (de) Korrosions- und anlaufbestaendiger UEberzug aus einer Zinnlegierung
DE202019103166U1 (de) Elektrisches Kontaktelement
DE1173574B (de) Elektrisches Kontaktstueck
DE2519257B2 (de) Elektrischer Kontakt, der gegen das Aufkriechen von Fremdstoffen geschützt ist, vorzugsweise Edelmetallverbundkontaktniet
DD238518A3 (de) Kontaktwerkstoff fuer die schwachstromtechnik
DD220750A1 (de) Anordnung fuer einen elektrischen steckkontakt

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

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

17P Request for examination filed

Effective date: 19841106

AK Designated contracting states

Designated state(s): BE DE FR GB IT NL SE

AK Designated contracting states

Designated state(s): BE DE FR GB IT NL SE

17Q First examination report despatched

Effective date: 19860320

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE DE FR GB IT NL SE

ITF It: translation for a ep patent filed

Owner name: JACOBACCI & PERANI S.P.A.

REF Corresponds to:

Ref document number: 3463425

Country of ref document: DE

Date of ref document: 19870604

ET Fr: translation filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19871130

Year of fee payment: 4

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

Ref country code: GB

Effective date: 19881106

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

Ref country code: SE

Effective date: 19881107

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

Ref country code: BE

Effective date: 19881130

BERE Be: lapsed

Owner name: DEGUSSA A.G.

Effective date: 19881130

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

Ref country code: NL

Effective date: 19890601

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
GBPC Gb: european patent ceased through non-payment of renewal fee
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: 19890731

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

Ref country code: DE

Effective date: 19890801

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

EUG Se: european patent has lapsed

Ref document number: 84113310.1

Effective date: 19890728