发明申请
- 专利标题: ALUMINUM ALLOY SHEET WITH EXCELLENT POST-FABRICATION SURFACE QUALITIES AND METHOD OF MANUFACTURING SAME
- 专利标题(中): 具有优异的后整理表面质量的铝合金板及其制造方法
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申请号: US12934321申请日: 2009-03-26
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公开(公告)号: US20110017370A1公开(公告)日: 2011-01-27
- 发明人: Yasuo Takaki , Takeo Sakurai , Kwangjin Lee
- 申请人: Yasuo Takaki , Takeo Sakurai , Kwangjin Lee
- 申请人地址: JP Kobe-shi, Hyogo
- 专利权人: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel Ltd,)
- 当前专利权人: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel Ltd,)
- 当前专利权人地址: JP Kobe-shi, Hyogo
- 优先权: JP2008-092890 20080331
- 国际申请: PCT/JP2009/056116 WO 20090326
- 主分类号: C22F1/05
- IPC分类号: C22F1/05 ; C22C21/04 ; C22F1/043 ; C22C21/08 ; C22C21/14 ; C22C21/16
摘要:
Disclosed is an Al—Mg—Si aluminum alloy sheet that can prevent ridging marks during press forming and has good reproducibility even with stricter fabricating conditions. In an Al—Mg—Si aluminum alloy sheet of a specific composition, hot rolling is performed on the basis of a set relationship between the rolling start temperature Ts and the rolling finish temperature Tf ° C., whereby the relationship of the cube orientation distribution profile in the horizontal direction of the sheet with the cube orientation alone or another crystal orientation distribution profile at various locations in the depth direction of the sheet is made more uniform, suppressing the appearance of ridging marks that develop during sheet press forming.
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