EP 1146991 A1 20011024 - FORMING GAS MIXTURE FOR PROTECTING WELD SEAMS DURING INERT GAS SHIELDED ARC WELDING
Title (en)
FORMING GAS MIXTURE FOR PROTECTING WELD SEAMS DURING INERT GAS SHIELDED ARC WELDING
Title (de)
FORMIERGASGEMISCH ZUM SCHWEISSNAHTSCHUTZ BEIM SCHUTZGASSCHWEISSEN
Title (fr)
MELANGE DE GAZ DE FORMATION POUR PROTEGER DES CORDONS DE SOUDURE LORS DU SOUDAGE EN ATMOSPHERE INERTE
Publication
Application
Priority
- DE 19857186 A 19981211
- EP 9909193 W 19991126
Abstract (en)
[origin: DE19857186A1] The invention relates to a forming gas mixture for protecting weld seams during inert gas shielded arc welding, especially tungsten inert-gas welding, inert-gas metal-arc welding, active-gas metal-arc welding or constricted arc welding of metals, especially of differently alloyed steels. According to the invention, the forming gas mixture contains a volume percent of 50 % to 95 % Ar; radical N2. An oxide-free and even structure of the top and lower surface of the weld seam are thereby guaranteed and a deflagration of the gas mixture is impossible.
IPC 1-7
IPC 8 full level
B23K 35/38 (2006.01); B23K 9/16 (2006.01)
CPC (source: EP)
B23K 35/383 (2013.01); B23K 9/16 (2013.01)
Citation (search report)
See references of WO 0035625A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
DE 19857186 A1 20000621; EP 1146991 A1 20011024; WO 0035625 A1 20000622
DOCDB simple family (application)
DE 19857186 A 19981211; EP 9909193 W 19991126; EP 99964511 A 19991126