Title:
ALUMINUM ALLOY CLAD FIN MATERIAL HAVING EXCELLENT SELF CORROSION RESISTANCE AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2020/179468
Kind Code:
A1
Abstract:
An aluminum alloy clad fin material which is a cladded material comprising a core material and a clad material that clads both surfaces of the core material; wherein the core material comprises an aluminum alloy which contains 0.40 to 1.40% by mass of Mn and also contains Fe and Si and in which the content of Zn is limited to 5.50% by mass or less and the remainder is made up by aluminum and unavoidable impurities, and the content of Fe is more than 0.30% by mass and 1.20% by mass or less or the content of Si is more than 0.30% by mass and 1.20% by mass or less in the core material; and wherein the clad material comprises an aluminum alloy which contains 0.01 to 5.50% by mass of Zn and in which the content of Fe is limited to 0.35% by mass or less, the content of Si is limited to 0.30% by mass or less and the remainder is made up by aluminum and unavoidable impurities; and wherein the difference (X-Y) between the Zn content (X) in the clad material and the Zn content (Y) in the core material is 0.01% by mass or more. According to the present invention, it is possible to provide an aluminum alloy clad fin material that can be used as a heat exchanger fin material capable of keeping the sacrificial anode effect thereof for a long period and having excellent self corrosion resistance.
Inventors:
SHOJI TOMOHIRO (JP)
NAKAMURA SHINICHI (JP)
MOCHIZUKI JUNICHI (JP)
NAKAMURA SHINICHI (JP)
MOCHIZUKI JUNICHI (JP)
Application Number:
PCT/JP2020/006770
Publication Date:
September 10, 2020
Filing Date:
February 20, 2020
Export Citation:
Assignee:
UACJ CORP (JP)
International Classes:
C22C21/00; B32B15/01; B32B15/20; C22F1/04; C22F1/00
Foreign References:
| JPH07252566A | 1995-10-03 | |||
| JPH01102297A | 1989-04-19 | |||
| JPH01198453A | 1989-08-10 | |||
| JPH07207394A | 1995-08-08 | |||
| JPS60138037A | 1985-07-22 | |||
| JPH03100143A | 1991-04-25 | |||
| JPS6254091A | 1987-03-09 |
Attorney, Agent or Firm:
ASHITABA INTERNATIONAL PATENT OFFICE (JP)
Download PDF: