| 发明名称 |
Aluminum alloy sheet for lithographic printing plates and method for manufacturing the same |
| 摘要 |
An aluminum alloy sheet for printing plate contains Fe: 0.2 to 0.6 Wt %, Si: 0.03 to 0.15 Wt %, Ti: 0.005 to 0.05 Wt %, Ni: 0.005 to 0.20 Wt %, and remainder of Al and inevitable impurity, wherein a ratio of Ni content and Si content satisfies 0.1</=Ni/Si</=3.7. The aluminum alloy sheet is manufactured by homogenizing an aluminum alloy ingot at a temperature in a range of 500 DEG to 630 DEG C., after performing hot rolling at start temperature in a range of 400 DEG to 450 DEG C., providing cold rolling and intermediate annealing, and further performing final cold rolling. By this, the aluminum alloy sheet for printing plate is prevented from pit generation upon dipping in electrolytic solution in a condition where an electric power is not applied. Uniformity of grained surface of the aluminum alloy sheet by electrolytic treatment can be improved.
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| 申请公布号 |
US5795541(A) |
申请公布日期 |
1998.08.18 |
| 申请号 |
US19960772572 |
申请日期 |
1996.12.26 |
| 申请人 |
KABUSHIKI KAISHA KOBE SEIKO SHO |
发明人 |
TANIGAWA, MASAKI;HOSONO, SHINICHIRO;HOSHINO, KOZO;ASAKAWA, YOSHIHIKO |
| 分类号 |
B41N1/08;C22C21/00;C22F1/04;(IPC1-7):C22C21/00 |
主分类号 |
B41N1/08 |
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