Global Patent Index - EP 0916146 B1

EP 0916146 B1 20021204 - METHOD OF PRODUCING A PRODUCT FROM A SILVER-BASED CONTACT MATERIAL, CONTACT MATERIAL AND PRODUCT PRODUCED THEREFROM

Title (en)

METHOD OF PRODUCING A PRODUCT FROM A SILVER-BASED CONTACT MATERIAL, CONTACT MATERIAL AND PRODUCT PRODUCED THEREFROM

Title (de)

VERFAHREN ZUR HERSTELLUNG EINES ERZEUGNISSES AUS EINEM KONTAKTWERKSTOFF AUF SILBERBASIS, KONTAKTWERKSTOFF SOWIE ERZEUGNIS AUS DEM KONTAKTWERKSTOFF

Title (fr)

PROCEDE DE FABRICATION D'UN PRODUIT A PARTIR D'UN MATERIAU DE CONTACT A BASE D'ARGENT, MATERIAU DE CONTACT ET PRODUIT OBTENU A PARTIR DUDIT MATERIAU DE CONTACT

Publication

EP 0916146 B1 20021204 (DE)

Application

EP 97935481 A 19970724

Priority

  • DE 9701569 W 19970724
  • DE 19631141 A 19960801

Abstract (en)

[origin: WO9806119A1] The invention concerns a method of producing a product from a silver-based contact material. According to this method, first, a powder mixture of silver and iron is formed in which the iron is used in the form of a powder having a mean grain size of more than 1 mu m. This mixture is then further processed in a powder-metallurgical manner to form the product, the iron being oxidized to form iron-oxide. This method produces a silver- and iron-oxide contact material whose iron-oxide particles have a larger mean grain size than the prior art contact materials. A contact material of this type displays high ductility although its good switching properties remain unchanged. It is suitable in particular for use as a contact part in the form of a rivet for a power engineering switching device.

IPC 1-7

H01H 1/02

IPC 8 full level

C22C 32/00 (2006.01); H01H 1/02 (2006.01); H01H 1/0237 (2006.01)

CPC (source: EP US)

C22C 32/0021 (2013.01 - EP US); H01H 1/0237 (2013.01 - EP US); B22F 2998/00 (2013.01 - EP US); H01H 2001/02378 (2013.01 - EP US)

C-Set (source: EP US)

B22F 2998/00 + B22F 1/09 + B22F 1/12

Designated contracting state (EPC)

DE ES FR GB

DOCDB simple family (publication)

WO 9806119 A1 19980212; BR 9710794 A 19990817; DE 59708897 D1 20030116; EP 0916146 A1 19990519; EP 0916146 B1 20021204; ES 2187801 T3 20030616; US 6056916 A 20000502

DOCDB simple family (application)

DE 9701569 W 19970724; BR 9710794 A 19970724; DE 59708897 T 19970724; EP 97935481 A 19970724; ES 97935481 T 19970724; US 24383399 A 19990201