Patent ID: 9327365
Filing Date: 2016-05-03
CPC Classification: B23K,C22C,F28F,Y10T

Claim Text:
1. An aluminum alloy brazing sheet, comprising: a core material having a pitting potential of −650 mV (vs. Ag/AgCl) or higher; and a filler material on at least one side of the core material comprising an Al—Si—Zn alloy, wherein the filler material comprises a Zn content of from 1 to 10 percent by mass, a Si content of 3 to 7.5 percent by mass, and a Cu content of 0.05 percent by mass or more and 0.4 percent by mass or less, has a liquid fraction of X at a brazing temperature, and is present in a clad ratio of d (%), wherein X and d satisfy the conditions: 0.3≦X≦0.88 and 15<d≦30, and wherein the product (X×d) of the liquid fraction X and the clad ratio d (%) satisfies the condition: 6≦(X×d)≦23.