DE2839684

When making copper-soldered multilayered tubes in which a metal (normally steel) sheet is rolled up and the juxtaposed faces of the tube so formed secured by melting copper thereagainst, a sheet of copper 2 is attached to the sheet of steel 1 in the area thereof that will in the formed tube 3 be fac...

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Bibliographische Detailangaben
Hauptverfasser:	MUEFFKE, WALTER, 6901 WIESENBACH, DIETZEL, HANS- ULRICH, 6837 ST LEON-ROT, ABEL, HORST, 6909 WALLDORF
Format:	Patent
Sprache:	eng
Schlagworte:	AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKINGWITHOUT ESSENTIALLY REMOVING MATERIAL CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING MACHINE TOOLS MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES,OTHERWISE THAN BY ROLLING MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS PUNCHING METAL SOLDERING OR UNSOLDERING TRANSPORTING WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	When making copper-soldered multilayered tubes in which a metal (normally steel) sheet is rolled up and the juxtaposed faces of the tube so formed secured by melting copper thereagainst, a sheet of copper 2 is attached to the sheet of steel 1 in the area thereof that will in the formed tube 3 be facing the other surface of the rolled metal sheet, and extends at least adjacent the outer edge 18 of the metal sheet in the formed tube 3. The copper sheet 2 is preferably firmly attached to the metal sheet 1 before skelping the combined sheets in stage 4 of apparatus providing also resistance heating at 5, induction heating at 6, a furnace at 7 and a cooler at 8.