Brazing filler metal, brazing filler metal paste, and heat exchanger
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United States of America Patent
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Issued Date -
Dec 3, 2009
app pub date -
May 29, 2009
filing date -
May 30, 2008
priority date (Note) -
Abandoned
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Abstract
A brazing filler metal includes quaternary alloy powder and copper powder. The quaternary allow powder consists of from 0.1 to 27.4 mass percent tin, from 0.8 to 5.1 mass percent nickel, from 2.2 to 10.9 mass percent phosphorous and a balance including copper and any unavoidable impurity. The brazing filler metal can be used in a form of paste by being mixed with an organic binder and an organic solvent. The brazing filler metal and the brazing filler metal can be used for joining members made of copper or copper alloy, such as members of a heat exchanger.
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