ALUMINUM ALLOY BRAZING SHEET FOR HEAT EXCHANGERS AND ALUMINUM ALLOY BRAZED ARTICLE FOR HEAT EXCHANGERS
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United States of America Patent
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app pub date -
Jan 8, 2016
filing date -
May 27, 2009
priority date (Note) -
Abandoned
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Abstract
Disclosed is an aluminum alloy brazing sheet (1) for heat exchangers, the brazing sheet provided with a core material (2) and a filler material (3) that comprises an Al—Si—Zn alloy and is formed on at least one side of the core material (2). The core material (2) has a pitting potential of −650 mV or more (vs. Ag/AgCl). The filler material (3) has a zinc concentration of from 1 to 10 percent by mass; a liquid fraction X, at the brazing temperature, satisfying the relation 0.3≦X≦0.88; and a clad ratio d (%) satisfying the relation 15
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