EP 0774529 A1 19970521 - Silver-iron material for electrical switch contacts

Title (en)

Silver-iron material for electrical switch contacts

Title (de)

Silber-Eisen-Werkstoff für elektrische Schaltkontakte (I)

Title (fr)

Matériau argent-fer pour contacts de commutateurs électriques

Publication

EP 0774529 A1 19970521 (DE)

Application

EP 96117210 A 19961026

Priority

DE 19543222 A 19951120

Abstract (en)

[origin: DE19543222C1] Ag-Fe material consists of (in wt.%) additives for electrical contacts comprising: 0.5-4.5 Fe, and 0.05-2 MgO, CaO, Y2O3, La-oxide, Ti-oxide, Zr-oxide, Hf-oxide, Ce-oxide, Nb-oxide, Ta-oxide, Cr-oxide, Mn-oxide, Fe-oxide, Zn-oxide, Al2O3, In-oxide, Si-oxide and Sn-oxide, with a balance of Ag. The material contains 0.2-1.5 wt.% oxide components, pref. 0.2-1.2 wt.% oxide of Mg, Ca, Y, La, Ti, Zr, Ce, Nb, Ta, Al and Si. The Fe content is 0.5-2.5 wt.%.

Abstract (de)

Silber-Eisen-Werkstoffe für elektrische Schaltkontakte mit Eigenschaften, die den Silber-Nickel-Werkstoffen sehr nahe kommen, bestehen aus 0,5 bis 4,5 Gew.% Eisen und 0,05 bis 2 Gew.% eines oder mehrerer der Oxide Magnesiumoxid, Calziumoxid, Yttriumoxid, Lanthanoxid, Titanoxid, Zirkoniumoxid, Hafniumoxid, Ceroxid, Nioboxid, Tantaloxid, Chromoxid, Manganoxid, Eisenoxid, Zinkoxid, Aluminiumoxid, Indiumoxid, Siliziumoxid und Zinnoxid, Rest Silber.

IPC 1-7

C22C 32/00; H01H 1/02

IPC 8 full level

C22C 5/06 (2006.01); C22C 32/00 (2006.01); H01H 1/02 (2006.01); H01H 1/023 (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)

Citation (applicant)

DE 3816895 A1 19881222 - DEGUSSA [DE]
DE 3911904 A1 19891214 - DUERRWAECHTER E DR DODUCO [DE]

Citation (search report)

[A] DE 2924238 A1 19791220 - NIPPON TELEGRAPH & TELEPHONE
[X] PATENT ABSTRACTS OF JAPAN vol. 18, no. 377 (C - 1225) 15 July 1994 (1994-07-15)
[X] PATENT ABSTRACTS OF JAPAN vol. 18, no. 377 (C - 1225) 15 July 1994 (1994-07-15)

Designated contracting state (EPC)

DE ES FR GB IT

DOCDB simple family (publication)

DE 19543222 C1 19970220; DE 59604827 D1 20000504; EP 0774529 A1 19970521; EP 0774529 B1 20000329; ES 2146825 T3 20000816; JP H09171735 A 19970630; US 5841044 A 19981124

DOCDB simple family (application)

DE 19543222 A 19951120; DE 59604827 T 19961026; EP 96117210 A 19961026; ES 96117210 T 19961026; JP 30521196 A 19961115; US 75193596 A 19961119