Method for brazing aluminum alloy-assembled articles within a short period of time and a filler alloy usable at low temperature
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United States of America Patent
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Jan 11, 2005
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N/A
app pub date -
Nov 7, 2001
filing date -
Mar 10, 2000
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Expired
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Abstract
A method for brazing aluminum alloy-assembled articles with a filler alloy having a liquidus temperature of 540.degree. C. or lower and a difference of temperature between the liquidus temperature and the solidus temperature being 100.degree. C. or lower, wherein the highest temperature reached in the assembled article at the time of heating for brazing being set 40.degree. C. or more higher than the liquidus temperature but 585.degree. C. or lower. An aluminum alloy-filler alloy usable at low temperature for brazing, which comprises Si in an amount of 4.0 wt % to 8.0 wt %, Zn in an amount of 7.0 wt % to 20.0 wt % and Cu in an amount of 10.0 wt % to 35.0 wt %, with the balance being made of aluminum.
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