EP 2279056 A1 20110202 - PROTECTIVE GAS MIXTURE FOR ARC WELDING OF ALUMINUM AND ALLOYS THEREOF
Title (en)
PROTECTIVE GAS MIXTURE FOR ARC WELDING OF ALUMINUM AND ALLOYS THEREOF
Title (de)
SCHUTZGASGEMISCH ZUM LICHTBOGEN-SCHWEISSEN VON ALUMINIUM UND SEINEN LEGIERUNGEN
Title (fr)
MÉLANGE DE GAZ PROTECTEUR POUR LE SOUDAGE À L ARC D ALUMINIUM ET D ALLIAGES DE CELUI-CI
Publication
Application
Priority
- EP 2009054059 W 20090406
- DE 102008019859 A 20080419
Abstract (en)
[origin: WO2009127545A1] The protective gas according to the invention for MIG/WIG welding of aluminum comprises a quaternary mixture of argon, helium, nitrogen and dinitrogen oxide, wherein the fraction of dinitrogen oxide is up to 70 vpm, preferably 50 to 70 vpm and wherein the nitrogen fraction is between 250 and 1000 vpm, but increases within these limits as the helium fraction increases. A good welding result is accomplished through the gas mixture according to the invention and the situation with regard to environmental and work safety is substantially improved.
IPC 8 full level
B23K 35/38 (2006.01); B23K 9/16 (2006.01); B23K 103/10 (2006.01)
CPC (source: EP)
B23K 9/23 (2013.01); B23K 35/383 (2013.01); B23K 2103/10 (2018.07)
Citation (search report)
See references of WO 2009127545A1
Designated contracting state (EPC)
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 SE SI SK TR
Designated extension state (EPC)
AL BA RS
DOCDB simple family (publication)
WO 2009127545 A1 20091022; DE 102008019859 A1 20091029; EP 2279056 A1 20110202
DOCDB simple family (application)
EP 2009054059 W 20090406; DE 102008019859 A 20080419; EP 09733253 A 20090406