公开(公告)号：US20240123554A1

公开(公告)日：2024-04-18

申请号：US18398030

申请日：2023-12-27

Applicant: BYD COMPANY LIMITED

Inventor： Wei ZHOU ,  Yiming ZHU ,  Qiang XU ,  Wenyan ZHAO ,  Xiayang LI

IPC: B23K35/02 ,  B22F1/00 ,  B22F1/103 ,  B23K1/008 ,  B23K35/30

CPC classification number: B23K35/025 ,  B22F1/09 ,  B22F1/103 ,  B23K1/008 ,  B23K35/3006 ,  B23K2103/18

Abstract: Disclosed are an active metal brazing paste composition, a brazing paste and a method for brazing ceramics and metals. The composition includes a binder and metal powder. The metal powder includes active metal brazing powder and brazing-aid metal powder. The brazing-aid metal powder contains copper powder and/or copper-silver alloy powder. The active metal brazing powder is alloy powder containing copper, silver, and an active metal. With the total weight of the metal powder as a reference, the content of the active metal is 1.5 wt % or more, the content of silver is 40 wt % to 90 wt %, and the content of oxygen is 0.5 wt % or less.