METHOD OF CONDITIONING OF SURFACE OF ALUMINIUM AND ITS ALLOYS FOR SOLDERING

FIELD: chemistry. ^ SUBSTANCE: method of conditioning of surface of aluminium and its alloys for soldering which includes treatment of the surface with degreasing and etching solutions followed by treatment in water solution of hydrofluoric acid mixed with fluoride of an alkaline metal with the foll...

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Hauptverfasser:	ZADOV VLADIMIR EFIMOVICH, POLTORYBAT'KO ANDREJ VALENTINOVICH, SHAKLEIN DENIS ANATOL'EVICH
Format:	Patent
Sprache:	eng ; rus
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 BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR 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 SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TRANSPORTING WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	FIELD: chemistry. ^ SUBSTANCE: method of conditioning of surface of aluminium and its alloys for soldering which includes treatment of the surface with degreasing and etching solutions followed by treatment in water solution of hydrofluoric acid mixed with fluoride of an alkaline metal with the following concentration of ingredients in solution, % w/w: hydrofluoric acid - 1-27, fluoride of an alkaline metal - 1-50, water - the rest of solution. ^ EFFECT: high quality of aluminium and its alloys soldering is ensured. ^ 3 cl, 4 tbl