METHOD OF JOINING TANTALUM CLAD STEEL STRUCTURES

The present invention is directed to a method of joining metal clad steel structures comprising the steps of a) providing a first metal clad section, said first metal clad section comprising a metal layer over a steel layer, with a bonding layer optionally therebetween, with a portion of said steel...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	ZIMMERMAN, STEFAN, MILLER, STEVEN A, SHEKHTER, LEONID NATAN
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CHEMICAL SURFACE TREATMENT CHEMISTRY CLADDING OR PLATING BY SOLDERING OR WELDING 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 LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM 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:	The present invention is directed to a method of joining metal clad steel structures comprising the steps of a) providing a first metal clad section, said first metal clad section comprising a metal layer over a steel layer, with a bonding layer optionally therebetween, with a portion of said steel layer in an edge region not being covered by said metal layer or said bonding layer, b) providing a second metal clad section, said second metal clad section comprising a metal layer over a steel layer, with a bonding layer optionally therebetween, with a portion of said steel layer in an edge region not being covered by said metal layer or said bonding layer, c) locating said steel edge regions adjacent each other, d) welding the steel edge regions together, and e) cold spraying a metal powder onto the welded edge regions and over the metal layers adjacent said edge regions thereby joining the metal clad steel sections, wherein said metal is selected from Ta, Nb, Ti, Zr, Mo and W.