Welding method for building aluminium profile member

Surfacial oxide layer on welded part of shaped aluminium section is physically removed and magnesium-free Al-Si alloy welding wire whose silicon content is 4-7% is used. A TIG welding mode is realized with such technological welding parameters as 1.6-5 mm of diameter of W electrode, 6-14 mm of diame...

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Bibliographische Detailangaben
1. Verfasser:	BAI JINGSHENG
Format:	Patent
Sprache:	eng
Schlagworte:	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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Beschreibung
Zusammenfassung:	Surfacial oxide layer on welded part of shaped aluminium section is physically removed and magnesium-free Al-Si alloy welding wire whose silicon content is 4-7% is used. A TIG welding mode is realized with such technological welding parameters as 1.6-5 mm of diameter of W electrode, 6-14 mm of diameter of nozzle, 20-200 A of welding current and 5-141/min. of argon flow. Its advantages include no welding crack, ordinary temp welding, and better mechanical property of welded seam.