| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an aluminum alloy plate for a lithographic printing plate in which more uniform pits are formed, and capable of obtaining more excellent adhesion with a photosensitive film and water holding properties. <P>SOLUTION: The aluminum alloy plate has a composition comprising 0.1 to 1.5% Mg, >0.05 to 0.5% Zn, 0.1 to 0.6% Fe, 0.03 to 0.15% Si, 0.0001 to 0.10% Cu and 0.0001 to 0.05% Ti, and in which the relation between the Mg content and the Zn content is prescribed to 4×Zn%-1.4%≤Mg%≤4×Zn%+0.6% and the balance aluminum with impurities. A part or the whole of the componential elements forms intermetallic compounds, the content of Fe forming intermetallic compounds is 50 to 99.8% of the whole Fe content, the content of Si forming intermetallic compounds is 5 to 40% of the whole Si content, and the ratio (B%/A%) of the content (B%) of Fe forming Al-Fe-Si based intermetallic compounds to the content (A%) of Fe forming Al-Fe based intermetallic compounds is≤0.9. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
