ALUMINUM ALLOY FIN MATERIAL, HEAT EXCHANGER, AND METHOD FOR PRODUCING ALUMINUM ALLOY FIN MATERIAL

WIPO Patent Application WO/2023/008499

A1

An aluminum alloy fin material according to the present invention is formed of an aluminum alloy which has a composition that contains, in mass%, 0.8% to 1.8% of Mn, 0.15% to 0.8% of Si, 0.01% to 0.30% of Fe and 2.0% to 4.0% of Zn, with the balance being made up of Al and unavoidable impurities, while being characterized in that: the ratio Mn/Si of the content (M) of Mn in mass% to the content (S) of Si in mass% is 2.0 to 5.0; in cases where the Mn/Si ratio is 3.0 or more, (M – 3S) is 0.6% or less; in cases where the Mn/Si ratio is less than 3.0, (3S - M) is 0.6% or less; the number density of the sum of the number of Al-Mn-Si crystallized products having a circle-equivalent diameter of 500 nm or more and the number of Si particles having a circle-equivalent diameter of 500 nm or more is 0.015/µm2 or less; and the number density of the Al-Mn-Si dispersed particles having a circle-equivalent diameter of 25 nm to 200 nm is 1.0 to 10.0/µm2.

JPH0939887	CYLINDRICAL OUTER HULL FOR UNDERWATER NAVIGATING BODY
JP2023048806	ALUMINUM ALLOY EXTRUDED TUBE, METHOD FOR MANUFACTURING THE SAME AND PIPING MEMBER FOR HEAT EXCHANGER
JP2017538861	Aluminum alloy with iron, silicon, vanadium and copper

MARUNO SHUN (JP)
YOSHINO MICHIHIDE (JP)

PCT/JP2022/029020

February 02, 2023

July 27, 2022

Click for automatic bibliography generation  

MA ALUMINUM CORP (JP)

C22C21/00; C22F1/00; C22F1/04

WO2011115133A1	2011-09-22
WO2011108460A1	2011-09-09
WO2014196183A1	2014-12-11

JP2020180320A	2020-11-05
JP2011245499A	2011-12-08
JP2016121393A	2016-07-07
JP2010255120A	2010-11-11

MATSUNUMA Yasushi et al. (JP)

View/Download PDF      PDF Help

Previous Patent: NON-LAMELLAR LIQUID CRYSTAL-FORMING COMPOSITION AND USE THEREOF

Next Patent: COMPOSITE FIBER BUNDLE AND FIBER PRODUCT