ALUMINUM ALLOY MATERIAL FOR AUTOMOBILE PANEL HAVING EXCELLENT FILIFORM RUST RESISTANCE AND ITS MANUFACTURE

PURPOSE:To manufacture the Al alloy material having excellent filiform rust resistance, in an Al alloy material contg. specified amounts of Mg, Cr and Cu and in which Fe and Si as impurities are regulated, by removing an oxidized film on the surface in the stage from the end of hot rolling to final...

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Hauptverfasser:	FUJIMOTO HIDEO, USUI HIDEYOSHI
Format:	Patent
Sprache:	eng
Schlagworte:	ALLOYS CHEMICAL SURFACE TREATMENT CHEMISTRY CLEANING OR DEGREASING OF METALLIC MATERIAL BY CHEMICALMETHODS OTHER THAN ELECTROLYSIS COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL FERROUS OR NON-FERROUS ALLOYS INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	PURPOSE:To manufacture the Al alloy material having excellent filiform rust resistance, in an Al alloy material contg. specified amounts of Mg, Cr and Cu and in which Fe and Si as impurities are regulated, by removing an oxidized film on the surface in the stage from the end of hot rolling to final annealing. CONSTITUTION:In an Al alloy having a componental compsn. contg., as essential components, by weight, 3.5 to 5.0% Mg, 0.1 to 0.3% Cr and 0.01 to 0.05% Cu and in which Fe is regulated to