TUBE D'ALUMINIUM FORME A PARTIR D'UNE BANDE

LE DOMAINE DE L'INVENTION EST LA FABRICATION DE TUBES SOUDES DE PETIT DIAMETRE.LE PROBLEME TECHNIQUE POSE CONSISTE A FOURNIR UN TEL TUBE DE PETIT DIAMETRE, EN ALUMINIUM, FABRIQUE DIRECTEMENT A UN TRES PETIT DIAMETRE, PAR CONFORMATION D'UNE BANDE ET SANS NECESSITER D'OPERATION ULTERIEU...

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Bibliographische Detailangaben
1. Verfasser:	HANS-ULRICH DIETZEL ET HERMANN BENTELE
Format:	Patent
Sprache:	fre
Schlagworte:	AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKINGWITHOUT ESSENTIALLY REMOVING MATERIAL BLASTING CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING JOINTS OR FITTINGS FOR PIPES LIGHTING MACHINE TOOLS MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES,OTHERWISE THAN BY ROLLING MEANS FOR THERMAL INSULATION IN GENERAL MECHANICAL ENGINEERING MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS PIPES PUNCHING METAL SOLDERING OR UNSOLDERING SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING THERMAL INSULATION IN GENERAL TRANSPORTING WEAPONS WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	LE DOMAINE DE L'INVENTION EST LA FABRICATION DE TUBES SOUDES DE PETIT DIAMETRE.LE PROBLEME TECHNIQUE POSE CONSISTE A FOURNIR UN TEL TUBE DE PETIT DIAMETRE, EN ALUMINIUM, FABRIQUE DIRECTEMENT A UN TRES PETIT DIAMETRE, PAR CONFORMATION D'UNE BANDE ET SANS NECESSITER D'OPERATION ULTERIEURE D'ETIRAGE.SUIVANT L'INVENTION, LE TUBE EST FORME PAR ENROULEMENT D'UNE BANDE EN SECTION TUBULAIRE COMPRENANT AU MOINS DEUX SPIRES, LA ZONE DE JONCTION SITUEE AU NIVEAU DES BORDS DES DEUX SPIRES ETANT CONTRE-COUDEE AVEC UNE AMPLITUDE EGALE A L'EPAISSEUR DE LA BANDE, LES DEUX COUCHES ETANT SOUDEES SUR TOUTE LEUR SURFACE.L'UTILISATION PRINCIPALE DE L'INVENTION RESIDE DANS LA FABRICATION DE TUBES D'ALUMINIUM DE PETIT DIAMETRE A PRIX DE REVIENT TRES REDUIT. The invention relates to aluminium tubes rolled from strip metal. Known rolled tubes of this type are difficult and expensive to produce with small diameters and/or with sufficient resistance to working pressures. According to the invention, the rolled aluminium strip forms at least two layers (3, 4) in the wall of the tube, one layer (3) being offset to the thickness of the strip to join another radially adjacent layer (4), the adjacent layers (3, 4) being soldered on their entire surfaces