公开(公告)号：US11697179B2

公开(公告)日：2023-07-11

申请号：US17597846

申请日：2020-09-28

Applicant: ARCONIC TECHNOLOGIES LLC

Inventor： Andreas Kulovits ,  Tao Zhou ,  Baolute Ren ,  Harry R. Zonker

IPC: B23K35/28 ,  B23K35/02 ,  B32B15/01 ,  C22C21/08

CPC classification number: B23K35/286 ,  B23K35/0238 ,  B32B15/016 ,  C22C21/08

Abstract: New aluminum alloy brazing sheets are disclosed. The new aluminum alloy brazing sheets may include a core, an interliner layer adjacent the core, and a braze liner adjacent the interliner layer. The interliner layer may include a first aluminum alloy having at least 0.35 wt. % Si and from 0.05 to 2.0 wt. % Mg. The braze liner may include a second aluminum alloy having 0.05 to 2.0 wt. % Mg. The first aluminum alloy and the second aluminum alloy may include an amount of magnesium sufficient to achieve Tsolidus(IL)≥5° C. Tliquidus(BL). The new aluminum alloy brazing products may be useful, for instance, in fluxfree brazing.