ARC WELDING PROCESS WITH PROTECTION GAS FOR NON-IRON METALS, ESPECIALLY ALUMINUM MATERIALS.

摘要

THE INVENTION REFERS TO A PROCESS OF ELECTRIC ARC WELDING WITH PROTECTION GAS FOR NON-FERREOUS MATERIALS, IN PARTICULAR ALUMINUM MATERIAL AND ALUMINUM ALLOYS, FOR EXAMPLE ALSI, WHERE THE WELDING ELECTRODE IS GUIDED NEIGHBORHOOD FORMS A PROTECTION GAS CONTAINING HELIUM AND / OR ARGON CONTINUOUSLY IN THE PROTECTIVE GAS FLOW. IN ACCORDANCE WITH THE INVENTION, A PROTECTION GAS IS PROPOSED WHICH, TOGETHER WITH ARGON AND / OR HELIUM, SHOWS A PART OF CARBON DIOXIDE OR A PORTION OF OXYGEN OR A PORTION BASED ON A MIXTURE OF THESE GASES FROM 0.01 TO 0 , 7% BY VOLUME, PREFERRED FROM 0.01 TO 0.1% BY VOLUME (100 TO 7,000 OR 1,000 PPM).