Aluminum alloy strip manufacturing process for the manufacture of brazed heat exchangers
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United States of America Patent
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Aug 2, 2005
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N/A
app pub date -
Nov 12, 2002
filing date -
Nov 16, 2000
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Abstract
The invention relates to a process to manufacture a clad strip, preferably casting a plate of core alloy comprising (% by weight): Si homogenizing the plate between 550 and 630° C. for at least one hour, cladding one or two sides of the plate with a brazing aluminum alloy, preferentially containing 5 to 13% silicon, hot rolling followed by cold rolling of the plate to a thickness close to a final desired thickness, recrystallization annealing of the strip between 300 and 4000 C., strain hardening of the annealed strip to obtain a permanent deformation between 2 and 10% and to obtain the desired final thickness.
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