EP 3511432 A1 20190717 - SOFTENING RESISTANT COPPER ALLOY, PREPARATION METHOD, AND APPLICATION THEREOF
Title (en)
SOFTENING RESISTANT COPPER ALLOY, PREPARATION METHOD, AND APPLICATION THEREOF
Title (de)
ERWEICHUNGSBESTÄNDIGE KUPFERLEGIERUNG, HERSTELLUNGSVERFAHREN UND ANWENDUNG DAVON
Title (fr)
ALLIAGE DE CUIVRE RÉSISTANT À L'ADOUCISSEMENT, PROCÉDÉ DE PRÉPARATION ET APPLICATION CORRESPONDANTE
Publication
Application
Priority
- CN 201610813189 A 20160909
- CN 2017000536 W 20170818
Abstract (en)
A softening resistant copper alloy, a preparation method, and an application thereof, the softening-resistant copper alloy comprising 0.1%-1.0 wt% Cr, 0.01% -0.2 wt% Zr, 0.01%-0.10 wt% Si, and ≤0.10 wt% Fe, and with the remaining of copper and inevitable impurities, characterized in that, the microstructure of the copper alloy contains comprises: an elemental Cr phase, a CuZr phase and a CrSi phase. In the copper alloy of the present invention, the high-temperature softening resistance effect of the material is improved by adding a proper amount of Si to form a compound CrSi, and the strength and the high-temperature softening resistance of the material are further improved by strengthening the copper alloy matrix by the elemental Cr phase and the CuZr phase, using the synergistic effect of the CrSi phase and the elemental Cr phase and by controlling the content of the impurity Fe. The copper alloy can be applied to contact lines and welding materials to prolong the service life of the materials.
IPC 8 full level
CPC (source: CN EP US)
C22C 9/00 (2013.01 - CN EP US); C22F 1/08 (2013.01 - CN EP US); C22C 2202/00 (2013.01 - US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
US 2019161831 A1 20190530; CN 106350698 A 20170125; CN 106350698 B 20180327; EP 3511432 A1 20190717; EP 3511432 A4 20190717; EP 3511432 B1 20210721; WO 2018045695 A1 20180315
DOCDB simple family (application)
US 201716321756 A 20170818; CN 201610813189 A 20160909; CN 2017000536 W 20170818; EP 17847871 A 20170818