Aluminum alloy substrate for lithographic printing plate and pro

Details Aluminum alloy substrate for lithographic printing plate and pro Aluminum alloy substrate for lithographic printing plate and pro

1997-03-27

1998-06-09

Wyszomierski, George

Metal treatment

Process of modifying or maintaining internal physical...

With casting or solidifying from melt

148552, 148693, 148697, 148698, C22F 104

Patent

active

057627290

ABSTRACT:
A continuously cast and rolled aluminum alloy substrate for an electrolytically grainable lithographic printing plate, consisting of 0.20 to 0.80 wt. % of Fe and the balance of Al, grain-refining elements and unavoidable impurities including 0.3 wt. % or less of Si and 0.05 wt. % or less of Cu, the amount of Fe present in solid solution being not more than 250 ppm, the amount of Si present in solid solution being not more than 150 ppm, and the amount of Cu present in solid solution being not more than 120 ppm.

REFERENCES:
patent: 5078805 (1992-01-01), Uesugi et al.
patent: 5186767 (1993-02-01), Rooy et al.
Patent Abstract of Japan, Oct. 1991, vol. 15, No. 425, (C-0879) #03 177 529, Aug. 1, 1991 (Sky Alum Co., Ltd.).
Patent Abstract of Japan, Apr. 1987 vol. 11, No. 136, (C-419), #61-272 357, Dec. 1, 1986 (Sukai Alum KK).

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