Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
ALUMINUM ALLOY BRAZING SHEET FOR FLUX-FREE BRAZING
Document Type and Number:
WIPO Patent Application WO/2019/172257
Kind Code:
A1
Abstract:
Provided is an aluminum alloy brazing sheet for flux-free brazing, the sheet comprising: a core member that comprises an aluminum alloy containing 0.50-0.90% by mass of Si, 0.30-2.50% by mass of Cu, and 1.40-1.80% by mass of Mn, the Mg content being limited to 0.05% by mass or less, and the balance being aluminum and unavoidable impurities; an intermediate member that comprises an aluminum alloy containing 0.40-1.00% by mass of Mg and 2.00-6.00% by mass of Zn, the balance being aluminum and unavoidable impurities; and a brazing member that comprises an aluminum alloy containing 6.00-13.00% by mass of Si, 0.05-0.40% by mass of Mg, and 0.010-0.050% by mass of Bi, the balance being aluminum and unavoidable impurities. According to the present invention, it is possible to provide an aluminum alloy brazing sheet to be used in brazing in an inert-gas atmosphere in which no flux is used, the brazing sheet having excellent brazing properties when the core member and the brazing member are brazed.

Inventors:
IDE Tatsuya (7-2 Otemachi 1-chome, Chiyoda-k, Tokyo 04, 〒1000004, JP)
YANAGAWA Yutaka (7-2 Otemachi 1-chome, Chiyoda-k, Tokyo 04, 〒1000004, JP)
YAMADA Shogo (1-1 Showa-cho, Kariya-sh, Aichi 61, 〒4488661, JP)
SHINODA Takahiro (1-1 Showa-cho, Kariya-sh, Aichi 61, 〒4488661, JP)
ONO Shingo (1-1 Showa-cho, Kariya-sh, Aichi 61, 〒4488661, JP)
Application Number:
JP2019/008641
Publication Date:
September 12, 2019
Filing Date:
March 05, 2019
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
UACJ CORPORATION (7-2 Otemachi 1-chome, Chiyoda-ku Tokyo, 04, 〒1000004, JP)
DENSO CORPORATION (1-1 Showa-cho, Kariya-shi Aichi, 61, 〒4488661, JP)
International Classes:
B23K35/28; B32B15/20; C22C21/00
Attorney, Agent or Firm:
ASHITABA INTERNATIONAL PATENT OFFICE (Kaede Bldg. 2F, 2-3-6 Uchikanda, Chiyoda-k, Tokyo 47, 〒1010047, JP)
Download PDF: