Aluminium alloys strips with high surface homogeneity and method for making same

An aluminum alloy strip of high surface homogeneity, intended for applications requiring good visual quality or specific optical properties, such as reflectors and anodized plates for construction and decoration. The strip may be characterized by an upper side having, after a 1 mum thick sulphur ano...

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Bibliographische Detailangaben
Hauptverfasser:	SCELLES YVES, MENET PIERRE-YVES, DEBREUX REGINE, HOFFMANN JEAN-LUC, MAIWALD KLAUS, SCHMIDT MARTIN-PETER
Format:	Patent
Sprache:	eng
Schlagworte:	ALLOYS APPARATUS THEREFOR CASTING CASTING OF METALS CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES CHEMISTRY ELECTROFORMING ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FERROUS OR NON-FERROUS ALLOYS METALLURGY PERFORMING OPERATIONS POWDER METALLURGY PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	An aluminum alloy strip of high surface homogeneity, intended for applications requiring good visual quality or specific optical properties, such as reflectors and anodized plates for construction and decoration. The strip may be characterized by an upper side having, after a 1 mum thick sulphur anodic treatment, an optical roughness value SN measured on three 5 cm longitudinal sections and three 5 cm transverse sections, such that there is mean variation on each section, defined by the ratio:which is less than 20%, and a difference DeltaSN=SN max-SN min which is less than 20.