公开(公告)号：WO2021067166A1

公开(公告)日：2021-04-08

申请号：PCT/US2020/053022

申请日：2020-09-28

Applicant: ARCONIC TECHNOLOGIES LLC

Inventor： KULOVITS, Andreas ,  ZHOU, Tao ,  REN, Baolute ,  ZONKER, Harry, R.

IPC: B23K35/02 ,  B23K35/28 ,  B32B15/01 ,  C22C21/06 ,  C22C21/10

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.