Cladded aluminum-alloy material and production method therefor, and heat exchanger using said cladded aluminum-alloy material and production method therefor

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United States of America Patent

SERIAL NO

15108564

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Abstract

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A highly corrosion resistant and highly formable cladded aluminum-alloy material, a method for producing the same, a heat exchanger using the same and a method for producing the same are shown. The present cladded aluminum-alloy material has an aluminum alloy core material, an intermediate layer material clad on one surface of the core material and a brazing filler metal clad on the intermediate layer material surface which is not at the core material side, wherein a crystal grain size of the intermediate layer material before brazing heating is 60 μm or more, and in a cross section of the core material in a rolling direction before brazing heating, when R1 (μm) represents the crystal grain size in a plate thickness direction, and R2 (μm) represents the crystal grain size in the rolling direction, R1/R2 is 0.30 or less.

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Patent Owner(s)

Patent OwnerAddress
UACJ CORPORATIONTOKYO 100-0004

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ando, Makoto Tokyo, JP 166 1970
Niikura, Akio Tokyo, JP 26 91
Yanagawa, Yutaka Tokyo, JP 24 508

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