REACTION BONDING OF FERROUS METALS

This invention relates to a method of bonding together a plurality of ferrous metal members; the resulting assembly and a heat exchanger comprising the thusly bonded metal members in which the members are bonded to each other by assembling them with aluminum metal between and in contact with them, c...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	COTTONE, ANDREW J, SAPERSTEIN, ZALMAN P
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	CLADDING OR PLATING BY SOLDERING OR WELDING COMBINED OPERATIONS CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR OTHER WORKING OF METAL PERFORMING OPERATIONS SOLDERING OR UNSOLDERING TRANSPORTING UNIVERSAL MACHINE TOOLS WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	This invention relates to a method of bonding together a plurality of ferrous metal members; the resulting assembly and a heat exchanger comprising the thusly bonded metal members in which the members are bonded to each other by assembling them with aluminum metal between and in contact with them, coating this assembly with a liquid bonding composition comprising a liquid solvent and a zinc halide and heating this assembly thereby causing the aluminum to displace zinc from the zinc halide with the zinc thereby uniting with the ferrous metal to form a secure joint comprising an alloy of iron from the ferrous metal members and zinc displaced from the zinc chloride.