Aluminum alloy printing plate and method for manufacturing same

Details Aluminum alloy printing plate and method for manufacturing same Aluminum alloy printing plate and method for manufacturing same

1982-08-20

1984-03-06

Rutledge, L. Dewayne

Metal treatment

Compositions

Heat treating

420546, 420547, 148440, 101459, 101465, 430278, 430302, 428457, C22C 2108

Patent

active

044352301

ABSTRACT:
An aluminum alloy plate for printing is composed of 0.05-0.30% Mg, 0.05-0.30% Si, 0.15-0.30% Fe and the remainder Al and ordinary impurities. This printing plate is manufactured through the steps of subjecting an aluminum alloy ingot of this composition to a thermal soaking treatment; carrying out a hot rolling process; then carrying out a cold rolling process on the hot rolled alloy at least at a reduction of 70%; and carrying out low temperature annealing at a temperature of 150.degree.-250.degree. C. for at least one hour.

REFERENCES:
patent: 3911819 (1975-10-01), Pryor et al.
patent: 4272342 (1981-06-01), Oda et al.
"Registration Record of Aluminum Association Alloy Designations and Chemical Composition Limits for Wrought Aluminum Alloys", The Aluminum Association, Inc. Sep. 1, 1976.
"Brush Graining of Aluminum for Lithographic Printing Plates", TAGA Proceedings, May 10, 1977.

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