Cooper & Dunham LLP
High conductivity aluminum fin alloy
An improved aluminum alloy fin stock is described having both a high strength and a high thermal conductivity. The fin stock contains 1.2-1.8% Fe, 0.7-0.95% Si, 0.3-0.5% Mn, 0.3-1.2% Zn and the balance Al, and is produced by continuously strip casting the alloy at a cooling rate greater than 10&deg; C./sec. but less than 200&deg; C./sec., hot rolling the strip to a re-roll sheet without homogenization, cold rolling the re-roll sheet to an intermediate gauge, annealing the sheet and cold rolling the sheet to final gauge. This fin stock has a conductivity after brazing of greater than 49.8% IACS.
Alcan International Limited
C C B F F
C22F C22C B22D F28F F28F
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Jean-Pierre Willard Mark Truman Iljoon Yoshito Kevin Michael Ichiro Toshiya
Martin Gallerneault Jin Oki Gatenby Okamoto Anami