Back to results
US 2009/0020510 A1Published application
Method for electric arc joining
OwnerEberhard Brune, Hans Grollimund +1inventors
InventorsEberhard Brune, Hans Grollimund, Thomas Ammann
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
OwnerEberhard Brune, Hans Grollimund +1inventors
InventorsEberhard Brune, Hans Grollimund, Thomas Ammann
Estimating the term…
A method for electric arc joining, in particular for arc welding and/or arc soldering, under protective gas using the method of T[ungsten] l[nert] G[as] joining, in particular TIG welding and/or TIG soldering, at least one gas mixture having the composition essentially argon and/or helium and carbon dioxide in a proportion range from approximately 0.2 volume-percent (vol.-%) to approximately 0.7 vol.-% being supplied as the protective gas, as well as a corresponding protective gas, in such a manner that weld pool movements, electric arc turbulence, and occurrences of wear of the T[ungsten] l[nert] G[as] electrode may be reliably avoided. The protective gas also has hydrogen in a proportion range from approximately 1.8 vol.-% to approximately 9 vol.-%.
A method for electric arc joining under protective gas using the method of Tungsten Inert Gas joining at least one gas mixture comprising argon and/or helium and carbon dioxide in a proportion range from approximately 0.2 vol.-% to approximately 0.7 vol.-% being supplied as the protective gas, characterized in that, the protective gas contains hydrogen in a proportion range from approximately 1.8 vol.-% to approximately 9 vol.-%.
A use of at least one protective gas for electric arc joining using the method of Tungsten Inert Gas joining, wherein the protective gas comprises argon and/or helium, carbon dioxide in a proportion range from approximately 0.2 volume-percent (vol.-%) to approximately 0.7 vol.-%, and hydrogen in a proportion range from approximately 1.8 vol.-% to approximately 9 vol.-%.
Dependencies are inferred from the claim text.