EP 0437917 A2 19910724 - Internal-oxidation method for production of electrical contact materials.
Title (en)
Internal-oxidation method for production of electrical contact materials.
Title (de)
Verfahren zur inneren Oxidation zur Herstellung elektrischer Kontaktmaterialien.
Title (fr)
Procédé à oxydation interne pour la production des matériaux de contact électrique.
Publication
Application
Priority
JP 990990 A 19900119
Abstract (en)
Electrical contact materials are made by the internal-oxidation of Ag ialloys containing from more than 4.5 weight % to 12 weight % Sn, from 0.05 to 0.1 wt. % of Zr and a balance of Ag, the internal oxidation being conducted at an elevated oxygen atmospheric pressure, i.e. from more than 10 to 200 atm.
IPC 1-7
IPC 8 full level
C22C 1/10 (2006.01); C22C 5/06 (2006.01); C22C 32/00 (2006.01); H01H 1/023 (2006.01); H01H 1/0237 (2006.01); H01H 11/04 (2006.01)
CPC (source: EP KR)
C22C 32/0021 (2013.01 - EP); H01H 1/02 (2013.01 - KR); H01H 1/02376 (2013.01 - EP)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0437917 A2 19910724; EP 0437917 A3 19920422; EP 0437917 B1 19941019; CN 1053509 A 19910731; DE 69013485 D1 19941124; DE 69013485 T2 19950504; JP H03215635 A 19910920; KR 910014967 A 19910831
DOCDB simple family (application)
EP 90308996 A 19900816; CN 90107574 A 19900910; DE 69013485 T 19900816; JP 990990 A 19900119; KR 900012768 A 19900816