The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 03, 2023
Filed:
Mar. 30, 2020
Uacj Corporation, Tokyo, JP;
UACJ CORPORATION, Tokyo, JP;
Abstract
A brazing sheet () includes a core material () composed of an Al alloy containing 0.40-2.50 mass % Mg; and a filler material () composed of an Al alloy containing Mg, 6.0-13.0 mass % Si, and 0.010-0.050 mass % Bi. The filler material is layered on a side of the core material and is exposed at an outermost surface (). The Mg concentration in the filler material continuously decreases in a direction from a boundary () with the core material toward the outermost surface. The Mg concentration (c) is 0.080 mass % or less at a depth (position P) from the outermost surface that is ⅛ of the thickness tof the filler material (). The Mg concentration (c) is 15-45% of the amount of Mg in the core material at a depth (position P) from the outermost surface that is ⅞ of the thickness tof the filler material.