EP 0660964 B1 19960626 - MATERIAL FOR ELECTRIC CONTACTS BASED ON SILVER-TIN OXIDE OR SILVER-ZINC OXIDE AND PROCESS FOR ITS PRODUCTION
Title (en)
MATERIAL FOR ELECTRIC CONTACTS BASED ON SILVER-TIN OXIDE OR SILVER-ZINC OXIDE AND PROCESS FOR ITS PRODUCTION
Title (de)
WERKSTOFF FÜR ELEKTRISCHE KONTAKTE AUF DER BASIS VON SILBER-ZINNOXID ODER SILBER-ZINKOXID UND VERFAHREN ZU SEINER HERSTELLUNG
Title (fr)
MATERIAU POUR CONTACTS ELECTRIQUES A BASE D'ARGENT-OXYDE STANNIQUE OU D'ARGENT-OXYDE DE ZINC ET SON PROCEDE DE FABRICATION
Publication
Application
Priority
- DE 4231022 A 19920916
- EP 9302511 W 19930916
Abstract (en)
[origin: DE4331526A1] Electric contact material is made by mixing together a powder of silver or mainly silver-containing alloy with tin oxide powder plus 0.01-10 wt.% (based on the amount of tin oxide) of an additive powder containing compounds including silver, oxygen, metals from sub-groups II to VI of periodic table and/or antimony, bismuth, germanium, indium and gallium. The mixture is pressed together and sintered. The powder mixture contains 5-20, pref. 8-14 wt.% tin oxide and 0.1-2.5 wt.%, pref. max. 1 wt.% of additive material. The additive material contains one from tungsten, molybdenum, vanadium, antimony, bismuth and germanium. Molybdenum is esp. favoured. ADVANTAGE - In addition to having a longer working life, the contact body has good properties when under a heated condition and is ductile and so can be worked without fear of cracking.
IPC 1-7
IPC 8 full level
H01H 1/023 (2006.01); C22C 32/00 (2006.01); H01H 1/02 (2006.01); H01H 1/0237 (2006.01)
CPC (source: EP US)
C22C 1/059 (2023.01 - US); C22C 32/0021 (2013.01 - EP US); H01H 1/02372 (2013.01 - EP US); H01H 1/02376 (2013.01 - EP US); Y10T 428/12056 (2015.01 - EP US); Y10T 428/12097 (2015.01 - EP US); Y10T 428/12104 (2015.01 - EP US); Y10T 428/12146 (2015.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB IT LI NL SE
DOCDB simple family (publication)
US 5822674 A 19981013; AT E139864 T1 19960715; DE 4331526 A1 19940317; DE 4331526 C2 19980730; DE 4331526 C3 20031106; DE 59303090 D1 19960801; EP 0660964 A1 19950705; EP 0660964 B1 19960626; EP 0660964 B2 20030108; ES 2091633 T3 19961101; ES 2091633 T5 20030901; JP 3441074 B2 20030825; JP H08504292 A 19960507; WO 9407252 A1 19940331
DOCDB simple family (application)
US 39714995 A 19950518; AT 93920746 T 19930916; DE 4331526 A 19930916; DE 59303090 T 19930916; EP 9302511 W 19930916; EP 93920746 A 19930916; ES 93920746 T 19930916; JP 50779894 A 19930916