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.

公开(公告)号：WO2022246353A1

公开(公告)日：2022-11-24

申请号：PCT/US2022/071814

申请日：2022-04-20

Applicant: ARCONIC TECHNOLOGIES LLC

Inventor： BEITTENMILLER, Kate J. ,  ZONKER, Harry R. ,  REN, Baolute

IPC: B23K35/02 ,  B23K1/00 ,  B23K101/14

Abstract: Brazing sheets, articles formed from or including brazing sheets, and methods of forming articles are provided. The brazing sheet comprises a substrate layer, an interliner layer disposed on the substrate layer, and a brazing layer disposed on the interliner layer. The substrate layer and the brazing layer comprise aluminum alloys. The interliner layer acts as a sacrificial anode and the substrate layer acts as a cathode of a galvanic circuit within the brazing sheet.