公开(公告)号：US11491585B2

公开(公告)日：2022-11-08

申请号：US16471270

申请日：2018-01-24

Applicant: ARCONIC TECHNOLOGIES LLC

Inventor： Stephen F. Baumann ,  Michael P. Danz ,  Ning Sun

IPC: B23K35/28 ,  B23K35/02 ,  B23K1/00 ,  B23K35/38 ,  C22C21/08 ,  F28F21/08 ,  B32B15/01 ,  B23K103/10 ,  B23K101/14

Abstract: An aluminum alloy brazing sheet has a 3XXX, 1XXX or 6XXX core, an interliner and a 4XXX brazing layer without added Mg. The interliner has Bi and Mg, the magnesium migrating to the surface of the brazing sheet during brazing and reducing the aluminum oxide to facilitate brazing without flux in a controlled inert atmosphere with reduced oxygen.

公开(公告)号：US11673213B2

公开(公告)日：2023-06-13

申请号：US17937092

申请日：2022-09-30

Applicant: Arconic Technologies LLC

Inventor： Stephen F. Baumann ,  Michael P. Danz ,  Ning Sun

IPC: B23K35/28 ,  B23K35/02 ,  B23K1/00 ,  B23K35/38 ,  C22C21/08 ,  F28F21/08 ,  B32B15/01 ,  B23K103/10 ,  B23K101/14

CPC classification number: B23K35/0238 ,  B23K1/0012 ,  B23K35/286 ,  B23K35/383 ,  B32B15/016 ,  C22C21/08 ,  F28F21/084 ,  F28F21/089 ,  B23K2101/14 ,  B23K2103/10 ,  F28F2275/04 ,  Y10T428/12764

Abstract: An aluminum alloy brazing sheet has a 3XXX, 1XXX or 6XXX core, an interliner and a 4XXX brazing layer without added Mg. The interliner has Bi and Mg, the magnesium migrating to the surface of the brazing sheet during brazing and reducing the aluminum oxide to facilitate brazing without flux in a controlled inert atmosphere with reduced oxygen.

公开(公告)号：US20200332406A1

公开(公告)日：2020-10-22

申请号：US16922209

申请日：2020-07-07

Applicant: ARCONIC TECHNOLOGIES LLC

Inventor： Hasso Weiland ,  Stephen F. Baumann ,  Eider A. Simielli

IPC: C22F1/047 ,  C22C21/06 ,  C25B11/04 ,  C25B1/04

Abstract: A method is disclosed, which includes the step of preparing an aluminum alloy body for solutionizing. The aluminum alloy body may include not greater than 0.06 wt. % Fe, where at least some Fe is present. The aluminum body may include not greater than 5.0 wt. % Mg. The balance of the aluminum alloy body may be aluminum and unavoidable impurities. The aluminum alloy body may include a first vol. % of Fe-bearing particles. The method may include solutionizing the as-prepared aluminum alloy body. The solutionizing step may include dissolving at least some of the Fe-bearing particles into solid solution, thereby decreasing the first vol. % of Fe-bearing particles to a second vol. % of Fe-bearing particles in the as-solutionized aluminum alloy body.

公开(公告)号：US20230035052A1

公开(公告)日：2023-02-02

申请号：US17937092

申请日：2022-09-30

Applicant: Arconic Technologies LLC

Inventor： Stephen F. Baumann ,  Michael P. Danz ,  Ning Sun

IPC: B23K35/02 ,  B23K1/00 ,  B23K35/28 ,  B23K35/38 ,  C22C21/08 ,  F28F21/08 ,  B32B15/01

Abstract: An aluminum alloy brazing sheet has a 3XXX, 1XXX or 6XXX core, an interliner and a 4XXX brazing layer without added Mg. The interliner has Bi and Mg, the magnesium migrating to the surface of the brazing sheet during brazing and reducing the aluminum oxide to facilitate brazing without flux in a controlled inert atmosphere with reduced oxygen.