Method of tig or gmaw welding of austenitic steel with a gas containing nitrogen

The tungsten inert gas or metal inert gas welding process for austenitic steel that contains neither titanium (Ti) nor aluminum (Al) in a respective amount of greater than 1-2 wt.%, is claimed. A filler material containing Ti and/or Al is used together with a nitrogen-containing welding gas. The aus...

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Bibliographic Details
Main Author AMMANN THOMAS
Format Patent
LanguageChinese
English
Published 01.08.2012
Subjects
CLADDING OR PLATING BY SOLDERING OR WELDING
CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING
MACHINE TOOLS
METAL-WORKING NOT OTHERWISE PROVIDED FOR
PERFORMING OPERATIONS
SOLDERING OR UNSOLDERING
TRANSPORTING
WELDING
WORKING BY LASER BEAM
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Summary:The tungsten inert gas or metal inert gas welding process for austenitic steel that contains neither titanium (Ti) nor aluminum (Al) in a respective amount of greater than 1-2 wt.%, is claimed. A filler material containing Ti and/or Al is used together with a nitrogen-containing welding gas. The austenitic steel is selected from ferro nickel (Fe/Ni36-steel). The nitrogen is present in the welding gas in an amount of 5-8%. The rest of the welding gas comprises argon, helium, carbon dioxide, oxygen and/or hydrogen.
Bibliography:Application Number: CN2012126096