METHOD FOR PRETREATING SURFACE OF ALUMINUM OR ALUMINUM ALLOY PART TO BE WELDED AND CORRESPONDING WELDED PART

PROBLEM TO BE SOLVED: To provide a method for pretreating aluminum or aluminum alloy parts to be welded and welded parts prepared by the method. SOLUTION: The method for pretreating the surfaces of the aluminum or the aluminum alloy parts to be welded and the welded parts prepared by the method are...

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Bibliographische Detailangaben
1. Verfasser:	DREXLER FRANK
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL SURFACE TREATMENT CHEMISTRY CLADDING OR PLATING BY SOLDERING OR WELDING CLEANING OR DEGREASING OF METALLIC MATERIAL BY CHEMICALMETHODS OTHER THAN ELECTROLYSIS COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING DIFFUSION TREATMENT OF METALLIC MATERIAL INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR METALLURGY PERFORMING OPERATIONS SOLDERING OR UNSOLDERING TRANSPORTING WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a method for pretreating aluminum or aluminum alloy parts to be welded and welded parts prepared by the method. SOLUTION: The method for pretreating the surfaces of the aluminum or the aluminum alloy parts to be welded and the welded parts prepared by the method are described. Prior to welding, the parts to be welded are subjected to treatment (17) by an aqueous acidic solution. The aqueous acidic solution contains the ions of boron and/or silicon and/or titanium and/or zirconium and/or hafnium elements. Better slide in a feeder is made possible during a welding process by performing a polishing stage (9) prior to the treatment in the aqueous acidic solution. COPYRIGHT: (C)2005,JPO&NCIPI