B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
B23K35/0255—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in welding
B23K35/0261—Rods, electrodes or wires
B23K35/0272—Rods, electrodes or wires with more than one layer of coating or sheathing material
Procede de soudage a l'arc sous double flux gazeux, avec flux central contenant de l'argon et de l'hydrogene et le flux de gainage comprenant de l'argon et soit du dioxyde de carbone, soit de l'oxygene