| 摘要 |
A process for manufacturing a strip of aluminium or an aluminium alloy for electrolytically roughened lithographic printing plate is such that the metal is continuously cast to a maximum thickness (da) of 4.5 mm, the cast strip is rolled without further heating to an intermediate thickness (dz) amounting to 30 to 80% of the total reduction in thickness (da-de), the strip which has been rolled to intermediate thickness (dz) is annealed in a temperature range of 250 to 320° C. in such a manner that at low strength recovery takes place without recrystallisation occurring, and the after the intermediate anneal, the strip is rolled to final thickness (de) without further heating. Lithographic printing plates manufactured according to the process exhibit good strength properties after a stove-lacquer process.
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