发明名称 |
Aluminium-copper-lithium sheet with high toughness for airplane fuselage |
摘要 |
<p>The production of an aluminum alloy sheet with elevated tenacity and mechanical strength comprises: (A) preparing a bath of molten metal in which the copper and lithium contents are controlled; (B) casting a plate from the molten metal; (C) homogenizing the plate at 490-530 o>C for 5-60 hours; (D) rolling the plate to form a sheet with a thickness of 0.8-12 mm; (E) putting into solution and tempering the sheet; (F) the controlled drawing of the sheet with a permanent deformation of 1-5 %; and (G) tempering the sheet at 140-170 o>C for 5-30 hours. Independent claims are also included for the following: (1) a rolled, extrudes and/or forged product of this Al alloy; (2) an Al alloy sheet; and (3) structural elements fabricated from the product.</p> |
申请公布号 |
EP2017361(A1) |
申请公布日期 |
2009.01.21 |
申请号 |
EP20080018130 |
申请日期 |
2006.06.02 |
申请人 |
ALCAN RHENALU |
发明人 |
BES, BERNARD;RIBES, HERVE;SIGLI, CHRISTOPHE;WARNER, TIMOTHY |
分类号 |
C22C21/12;B64C1/00;C22F1/057 |
主分类号 |
C22C21/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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