PROCESS FOR MANUFACTURING OF BRAZED MULTI-CHANNELED STRUCTURE

PROBLEM TO BE SOLVED: To form uniform joints having optimal dimensions, shape and strength.SOLUTION: A process is disclosed for brazing plate/plate and plate/fin multi-channeled structures using an amorphous brazing foil as a brazing filler metal between the parts. The parts are assembled in an unco...

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Bibliographische Detailangaben
Hauptverfasser:	DECRISTOFARO NICHOLAS, RABINKIN ANATOL
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OFGENERAL APPLICATION HEAT EXCHANGE IN GENERAL HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS,IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT HEATING LIGHTING MACHINE TOOLS MECHANICAL ENGINEERING METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS SOLDERING OR UNSOLDERING TRANSPORTING WEAPONS WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To form uniform joints having optimal dimensions, shape and strength.SOLUTION: A process is disclosed for brazing plate/plate and plate/fin multi-channeled structures using an amorphous brazing foil as a brazing filler metal between the parts. The parts are assembled in an unconstrained stack, and a controlled load is applied to the top of the stack. The stack is then heated to a temperature at which the brazing foil melts and reacts with a base metal to form the joints. The stack is cooled resulting in a brazed structure having the desired characteristics, wherein the strength of the structure is equal to the underlying strength of the base metal.