The for non soda water, for food can furthermore is used for the one for daily miscellaneous goods are superior in the compactibility which the aluminum alloy can top material and the production mannered

摘要

PROBLEM TO BE SOLVED: To provide an aluminum alloy can cap material which is used for a noncarbonated drink such as fruit juice, coffee and black tea, food canning and sundry goods for daily use and is excellent in moldability, in rivet moldability and score processibility in particular, and to provide a manufacturing method therefor.;SOLUTION: An aluminum plate consists of 1.85 to 3.00% Mg, 0.05 to 0.60% Mn, 0.10 to 0.50% Fe, 0.05 to 0.40% Si and the balance of Al, and any of Cu, S, Brass bearings belonging to a rolled aggregate structure is ≥6 times the random bearings when the aggregate structure is measured at a plate thickness surface of a product plate, and number of intermetallic compounds having maximum length of ≥5 μm is 30 to 480 per 1 mm². Aluminum alloy ingot of the component described above is subjected to hot rolling so as to attain 40 to 63% of rolling ratio of a final path, 2.0 to 3.7 mm hot rolling up plate thickness and ≥85% of recrystallization ratio of hot rolled plate and successively to cold rolling without executing intermediate annealing on the course way so as to attain 85 to 93.5% total cold rolling ratio, 15 to 60% of rolling ratio of the final path and ≥300 m/minute of rolling speed of the final path.;COPYRIGHT: (C)2003,JPO