| 摘要 |
PROBLEM TO BE SOLVED: To provide a pure aluminum rolled sheet capable of holding excellent surface properties even when being subjected to cold rolling. SOLUTION: In the aluminum rolled sheet with a sheet thickness of 2 to 10 mm and purity of≥99%, which is produced by hot finish rolling where the draft of the final pass is 60 to 80%, the forward slip is 5.5 to 10.0%, and finishing temperature is 320 to 360°C, in the region near the surface from the surface to 500μm in the sheet thickness direction, the average crystal grain size in the rolling direction is≤100μm, and≥25% in the region near the surface is composed of a <111>//ND recrystallized texture. COPYRIGHT: (C)2009,JPO&INPIT
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