Flux composition

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United States of America Patent

PATENT NO 9844839
SERIAL NO

14438293

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Abstract

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A flux composition includes a component (A) that is a powder of an alkali metal zinc fluoroaluminate represented by “MwZnxAlyFz (1)” (wherein M is K or Cs, and w, x, y, and z are a positive integer, the greatest common divisor of w, x, y, and z being 1), the content of the component (A) in the flux composition being 50 mass % or more. The flux composition prevents occurrence of a brazing defect and discoloration even when an aluminum alloy is brazed in an atmosphere having a high oxygen concentration, or an atmosphere having high humidity.

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Patent Owner(s)

  • UACJ CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hisatomi, Yuji Tokyo, JP 17 142
Kumagai, Hidetoshi Tokyo, JP 15 13
Yamashita, Naoki Tokyo, JP 59 296

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