| 摘要 |
PROBLEM TO BE SOLVED: To provide an aluminum alloy sheet for can ends which can be manufactured by cold rolling without interposing a process annealing step between cold rolling steps after hot rolling and in which 0 to 180°earing is reduced at drawing and anisotropy is improved and also to provide its manufacturing method. SOLUTION: The sheet is a hard aluminum alloy sheet having a composition which consists of >2.0 to 3.4% Mg, 0.20 to 0.50% Mn, 0.28 to <0.60% Fe, 0.04 to 0.20% Si and the balance Al with impurities and in which the total content of Fe and Mn is 0.6 to 1.0%. In this sheet, the area occupancy of Al-Fe-Mn crystals and that of Mg-Si crystals at sheet surface are made to >1.0 to <3.0% and <0.2%, respectively, and also 45°earing ratio and 0 to 180°earing ratio at drawing are made to <4.0%, respectively. COPYRIGHT: (C)2005,JPO&NCIPI
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