发明名称 |
Cold-rolled aluminium alloy sheet product. |
摘要 |
<p>An aluminium sheet product is formed from an alloy containing Fe 0.6 - 1.0%, Si 0.5 - 0.9% and Cu 0.3 - 0.5% and includes Ti and B in conventional grain refining amount. Mn is permissible in amounts up to 0.2 - 0.3% but is preferably held below 0.1%. The Mg impurity content is preferably held at a very low value so as to avoid difficulties with adhesion of lacquer.</p><p>The principle use of the sheet product is for the production of bottle closures and for that purpose it is preferably produced in a thickness of 0.15 - 0.25 mm. and in a quality having a low percentage earing and fine grain size. For this purpose the sheet is subjected to a temper cold rolling reduction of 30 - 60% after the last interanneal- ing treatment. No homogenisation treatment is required before hot reduction of the cast ingot and no precipitation heat-treatment is applied to the hot-rolled product before cold rolling.</p> |
申请公布号 |
EP0028059(A1) |
申请公布日期 |
1981.05.06 |
申请号 |
EP19800302906 |
申请日期 |
1980.08.21 |
申请人 |
ALCAN RESEARCH AND DEVELOPMENT LIMITED |
发明人 |
BLADE, JOHN CLEMENTS;RIDLEY, JOHN;WOOD, GEOFFREY CLIFFORD |
分类号 |
C22C21/00;(IPC1-7):22C21/00 |
主分类号 |
C22C21/00 |
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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