Metal treatment – Process of modifying or maintaining internal physical... – With casting or solidifying from melt
Reexamination Certificate
2004-03-19
2010-11-09
Wyszomierski, George (Department: 1793)
Metal treatment
Process of modifying or maintaining internal physical...
With casting or solidifying from melt
C148S552000, C148S695000
Reexamination Certificate
active
07828914
ABSTRACT:
The invention relates to a method and an aluminium alloy sheet material. The method of producing aluminium alloy sheet material comprising the following steps: continuous strip casting of a sheet at a predetermined solidification rate ensuring material microstructure exhibiting primary particles having average size below 1 micrometer2, and (cold) rolling of the strip cast sheet to an appropriate gauge with optionally intermediate annealing during the cold rolling. It is an object of the present invention to provide a novel method of production of Al-alloy sheets applicable on heat exchanger sheet based components resulting in improved pitting corrosion applying (base) Al-alloy material with higher Fe-content.
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Jiang Xiao-Jun
Syslak Morten
Norsk Hydro ASA
Shevin Mark L
Wenderoth , Lind & Ponack, L.L.P.
Wyszomierski George
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