EP 2670876 A2 20131211 - CU-NI-ZN-MN ALLOY
Title (en)
CU-NI-ZN-MN ALLOY
Title (de)
CU-NI-ZN-MN-LEGIERUNG
Title (fr)
ALLIAGE DE CU-NI-ZN-MN
Publication
Application
Priority
- CH 2112011 A 20110204
- EP 2012051890 W 20120203
Abstract (en)
[origin: WO2012104426A2] Precipitation hardened alloy on the basis of copper, zinc, nickel and manganese exhibiting a high strength and ductility with values similar to those of stainless steels in combination with excellent machinability. The inventive alloy family is characterized by fine fibre-like or globular precipitates that emerge during intermediate temperature annealing treatments, which in case of the unleaded variations significantly improves the machinability. The alloy of invention is particularly suited for free machining applications such as the production of pen tips and reservoirs for writing implements of reduced tip dimensions, where conventional Cu-Ni- Zn-Mn alloys fail due to lack of strength and where the corrosion resistance in gel-based inks is insufficient without restriction to other fields of application.
IPC 8 full level
C22C 9/04 (2006.01); C22C 30/06 (2006.01)
CPC (source: EP KR US)
C22C 9/04 (2013.01 - EP KR US); C22C 30/02 (2013.01 - EP US); C22C 30/06 (2013.01 - EP KR US); C22F 1/08 (2013.01 - EP US)
Citation (search report)
See references of WO 2012104426A2
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
DOCDB simple family (publication)
WO 2012104426 A2 20120809; WO 2012104426 A3 20120927; AU 2012213342 A1 20130822; BR 112013019625 A2 20170131; CA 2826185 A1 20120809; CN 103502488 A 20140108; CN 103502488 B 20160106; EP 2670876 A2 20131211; IL 227758 A0 20130930; JP 2014512452 A 20140522; KR 20140021554 A 20140220; MX 2013008503 A 20140730; RU 2013140681 A 20150310; SG 192046 A1 20130830; US 2014294665 A1 20141002; ZA 201306143 B 20141029
DOCDB simple family (application)
EP 2012051890 W 20120203; AU 2012213342 A 20120203; BR 112013019625 A 20120203; CA 2826185 A 20120203; CN 201280007547 A 20120203; EP 12710042 A 20120203; IL 22775813 A 20130801; JP 2013552224 A 20120203; KR 20137023488 A 20120203; MX 2013008503 A 20120203; RU 2013140681 A 20120203; SG 2013055231 A 20120203; US 201213982764 A 20120203; ZA 201306143 A 20130815