公开(公告)号：US5017337A

公开(公告)日：1991-05-21

申请号：US412431

申请日：1989-09-26

申请人： Motohiro Nabae ,  Kunihiko Kishino

发明人： Motohiro Nabae ,  Kunihiko Kishino

IPC分类号： C22C21/06 ,  G11B5/73

CPC分类号： C22C21/06 ,  G11B5/7315 ,  Y10S428/928 ,  Y10T428/12993

摘要： An aluminum alloy for magnetic disc substrate excellent in platability is disclosed, which is characterized in that not less than 0.010 wt. % and under 0.03 wt. % of Cu, not less than 2 wt. % and not more than 6 wt. % of Mg and not less than 0.05 wt. % and not more than 2.0 wt. % of Zn are contained, further one or more of over 0.01 wt. % and under 0.05 wt. % of Mn and over 0.01 wt. % and under 0.05 wt. % of Cr are contained, and, as impurity elements, Si, Fe, Ti and other individual unavoidable element are regulated to be not more than 0.1 wt. %, not more than 0.1 wt. %, not more than 0.02 wt. % and not more than 0.02 wt. %, respectively. Zr may be contained additionally in amounts of not less than 0.005 wt. % and under 0.05 wt. %.

公开(公告)号：US5690758A

公开(公告)日：1997-11-25

申请号：US491869

申请日：1995-11-22

申请人： Binrun Oh ,  Yuichi Suzuki ,  Kunihiko Kishino

发明人： Binrun Oh ,  Yuichi Suzuki ,  Kunihiko Kishino

IPC分类号： C22C21/02 ,  C22F1/00 ,  C22F1/05 ,  C22F1/057

CPC分类号： C22F1/05 ,  C22F1/057

摘要： The invention relates to a fabrication process to obtain aluminum alloy sheet having high formability. In this process, an alloy obtained by alloying Al with Si, Mg, Cu, Mn and Fe, and one or more elements taken from the group of Cr, Zn, Zr and Ti, is subjected to a continuous solution treatment for at least 3 seconds at a temperature higher than 450.degree. C., followed by cooling to a temperature between 60.degree. and 250.degree. C., at a rate higher than 100.degree. C./min, followed by a coiling at the same temperature in the 60.degree. C.-250.degree. C. range and a preaging between 1 minute and 10 hours at the same cooling temperature of 60.degree. to 250.degree. C.

摘要翻译： PCT No.PCT / FR94 / 01547 Sec。 371日期：1995年11月22日 102（e）1995年11月22日日期PCT 1994年12月28日PCT公布。 WO95 / 18244 PCT出版物 日期1995年7月6日本发明涉及一种获得具有高成形性的铝合金板的制造方法。 在该方法中，通过使Al与Si，Mg，Cu，Mn和Fe合金，以及从Cr，Zn，Zr和Ti组中取出的一种以上的元素得到的合金，进行连续的溶液处理3次以上 秒，在高于450℃的温度下，然后以高于100℃/ min的速率冷却至60℃至250℃的温度，然后在60℃的相同温度下卷取 在250℃〜250℃的相同冷却温度下进行1〜10小时的烘烤。