Global Patent Index - EP 0526755 B1

EP 0526755 B1 19990526 - Method for strip casting Cu-alloys

Title (en)

Method for strip casting Cu-alloys

Title (de)

Bandgiessverfahren für Kupferlegierungen

Title (fr)

Procédé pour la coulée en bande d'alliages de Cu

Publication

EP 0526755 B1 19990526 (DE)

Application

EP 92111649 A 19920709

Priority

DE 4126079 A 19910807

Abstract (en)

[origin: EP0526755A2] The invention relates to a casting method for the production of a strip-shaped strand consisting of a molten precipitate-forming and/or stress-sensitive and/or segregation-prone copper alloy. According to the invention, the method is characterised by the fact that a strand up to a thickness D & 8 mm is cast while maintaining a solidification rate @ = 0.2 to 8 mm/s. This ensures, as regards precipitate-forming copper alloys, that the formation of the precipitates is completely suppressed or occurs only in the form of very fine dispersions without further aftertreatment, as regards the stress-sensitive copper alloys, that the build-up of internal stresses is largely avoided and that, as regards segregation-sensitive alloys, the occurrence of segregations is diminished to such an extent that the alloys can be cold-formed directly. A broad spectrum of copper alloys can be treated by the casting method according to the invention.

IPC 1-7

B22D 11/06; B22D 11/00

IPC 8 full level

B22D 11/00 (2006.01); B22D 11/06 (2006.01); B22D 11/20 (2006.01); C22C 1/02 (2006.01); C22C 9/00 (2006.01); C22F 1/00 (2006.01); C22F 1/08 (2006.01)

CPC (source: EP)

B22D 11/0631 (2013.01)

Designated contracting state (EPC)

DE FR GR IT NL SE

DOCDB simple family (publication)

EP 0526755 A2 19930210; EP 0526755 A3 19950215; EP 0526755 B1 19990526; AU 2074692 A 19930225; AU 647650 B2 19940324; DE 4126079 A1 19930211; DE 4126079 C2 19951012; DE 59209699 D1 19990701; FI 923521 A0 19920805; FI 923521 A 19930208; FI 97605 B 19961015; GR 3030965 T3 19991130; JP 3058376 B2 20000704; JP H07268506 A 19951017

DOCDB simple family (application)

EP 92111649 A 19920709; AU 2074692 A 19920803; DE 4126079 A 19910807; DE 59209699 T 19920709; FI 923521 A 19920805; GR 990402046 T 19990811; JP 21980592 A 19920727