Brazing sheet and manufacturing method thereof

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United States of America Patent

PATENT NO 11780034
SERIAL NO

17279873

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Abstract

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A brazing sheet (1) includes a core material (11) composed of an Al alloy that contains 0.20-3.0 mass % of Mg; and a filler material (12) layered on the core material and composed of an Al alloy that contains Mg, 6.0-13.0 mass % of Si, and more than 0.050 mass % and 1.0 mass % or less of Bi. The Mg concentration of the filler material becomes continuously lower in a direction from a boundary (122) with the core material to an outermost surface (121). The Mg concentration of the filler material is 0.150 mass % or less at a first depth from the outermost surface that is ⅛ of a thickness (tf) of the filler material and is 5-90% of the amount of Mg in the core material at a second depth from the outermost surface that is ⅞ of the thickness of the filler material.

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Patent Owner(s)

Patent OwnerAddress
DENSO CORPORATIONKARIYA-CITY AICHI 448-8661

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Dokou, Takeyoshi Aichi, JP 2 2
Honma, Nobuhiro Aichi, JP 15 25
Nakamura, Shinichi Aichi, JP 355 5069
Shinoda, Takahiro Aichi, JP 20 20
Sonoda, Yoshihiko Aichi, JP 8 43
Sugimoto, Naoki Aichi, JP 71 864
Toyama, Taketoshi Aichi, JP 18 129
Yamada, Shogo Aichi, JP 43 275
Yamayoshi, Tomoki Aichi, JP 39 147

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