| 发明名称 |
Aluminium alloy for pressurised hollow bodies. |
| 摘要 |
Alloy of the 7000 series and a specific heat treatment with a view to the manufacture of hollow bodies under pressure and, in particular, of metal bottles for compressed gases. The alloy contains, in weight %: 6.25 </= Zn </= 8.0 Mn </= 0.20 1.2 </= Mg </= 2.2 Ti </= 0.05 1.7 </= Cu </= 2.8 0.10 </= Zr </= 0.25 others, each </= 0.05 Fe </= 0.20 '' total </= 0.15 Si+Fe </= 0.40 remainder: Al Cr </= 0.05. The final annealing is preferably performed in 3 stages: - 1st stage between 105 and 120 DEG C for 6 to 12 h - 2nd stage: between 170 and 190 DEG C for 0.5 to 20 h - 3rd stage: between 105 and 120 DEG C for 12 to 36 h.
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| 申请公布号 |
EP0589807(A1) |
申请公布日期 |
1994.03.30 |
| 申请号 |
EP19930420377 |
申请日期 |
1993.09.20 |
| 申请人 |
SOCIETE METALLURGIQUE DE GERZAT |
发明人 |
EHRSTROEM, JEAN-CHRISTOPHE;ANAGNOSTIDIS, MARC |
| 分类号 |
C22C21/10;C22F1/00;C22F1/053;F17C1/14;(IPC1-7):C22C21/10 |
主分类号 |
C22C21/10 |
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