C - Chemistry – Metallurgy – 22 – F
Patent
C - Chemistry, Metallurgy
22
F
148/10
C22F 1/04 (2006.01) B41N 1/08 (2006.01) B41N 3/00 (2006.01) C22C 21/06 (2006.01) C22F 1/047 (2006.01)
Patent
CA 1308337
Abstract of the Disclosure An improved method of making a lithoplate from a 5XXX type alloy which includes controlling the composition and casting practices to eliminate forming a pine tree metal structure in an ingot used for rolling a workpiece to be made into lithoplate. The method also includes homogenizing and hot rolling the ingot at a controlled initial temperature to produce a desired grain and metal microstructure in the sheet rolled from the ingot which is suited for providing a surface having substantially uniform and evenly distributed craters produced by an electrochemical method of graining.
553497
Petrey Gerald R.
Rooy Elwin L.
Weaver James R.
Aluminum Company Of America
Petrey Gerald R.
Rooy Elwin L.
Smart & Biggar
Weaver James R.
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