发明名称 表面性状が良好な高強度缶ボディ用板材の製造方法
摘要 <p><P>PROBLEM TO BE SOLVED: To provide a technique concerning a method for manufacturing a can body, in which occurrence of flow line-like defects can be suppressed. <P>SOLUTION: The method for manufacturing a high strength plate material for a can body includes: carrying out homogenization and soaking treatment of an aluminum alloy ingot having a specific composition and then carrying out hot rolling, cold rolling, and continuous annealing, and then carrying out final cold rolling to obtain a plate thickness of≥0.23 mm and≤0.4 mm. The homogenization is carried out at 555-580°C for 1-12 hours; the soaking treatment is carried out at 535-555°C for 1 hour or more; the total time for the homogenization and the soaking treatment is 40 hours or less; the rolling reduction rate of the last pass in the hot rolling is≤(85-0.08T)% (wherein T represents a temperature (°C) of a coiled plate just after taken up from the final hot rolling mill); the temperature of the coiled plate just after taken up from the hot rolling machine is≥270°C and≤460°C; and the rolling reduction in the first cold rolling is≥40%, and the reduction rate in the final cold rolling is≥55% and≤70%. <P>COPYRIGHT: (C)2012,JPO&INPIT</p>
申请公布号 JP5715413(B2) 申请公布日期 2015.05.07
申请号 JP20100293274 申请日期 2010.12.28
申请人 发明人
分类号 C22F1/047;C22C21/00;C22C21/06;C22F1/04 主分类号 C22F1/047
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