Aluminum-alloy clad member, method for producing same, and heat exchanger using aluminum-alloy clad member

Patent metadata

Field	Value
Publication number	US-2016161199-A1
Application number	US-201414906269-A
Country	US
Kind code	A1
Filing date	Jul 23, 2014
Priority date	Jul 29, 2013
Publication date	Jun 9, 2016
Grant date	—

Abstract

An aluminum alloy clad material having a core material and a sacrificial anode material clad on at least one surface of the core material, wherein the core material comprises an aluminum alloy comprising 0.050 to 1.5 mass % (referred to as “%” below) Si, 0.050 to 2.0% Fe and 0.50 to 2.00% Mn; the sacrificial anode material includes an aluminum alloy containing 0.50 to 8.00% Zn, 0.05 to 1.50% Si and 0.050 to 2.00% Fe; the grain size of the sacrificial anode material is 60 μm or more; and a ratio R1/R2 is 0.30 or less, wherein R1 (μm) is a grain size in a thickness direction and R2 (μm) is a grain size in a rolling direction in a cross section of the core material along the rolling direction; a production method thereof; and a heat exchanger using the clad.

First claim

1 . An aluminum alloy clad material having an aluminum alloy core material and a sacrificial anode material clad on at least one surface of the core material,
wherein the core material comprises an aluminum alloy comprising 0.05 to 1.50 mass % Si, 0.05 to 2.00 mass % Fe, 0.50 to 2.00 mass % Mn and a balance of Al and unavoidable impurities, the sacrificial anode material comprises an aluminum alloy comprising 0.50 to 8.00 mass % Zn, 0.05 to 1.50 mass % Si, 0.05 to 2.00 mass % Fe and a balance of Al and unavoidable impurities, a grain size of the sacrificial anode material is 60 μm or more, and a ratio R1/R2 is 0.30 or less, when R1 (μm) is a grain size in a thickness direction and R2 (μm) is a grain size in a rolling direction in a cross section of the core material along the rolling direction.

2 . The aluminum alloy clad material according to claim 1 , wherein the core material comprises the aluminum alloy further comprising one or, two or more selected from 0.05 to 1.50 mass % Cu, 0.05 to 0.50 mass % Mg, 0.05 to 0.30 mass % Ti, 0.05 to 0.30 mass % Zr, 0.05 to 0.30 mass % Cr and 0.05 to 0.30 mass % V.

3 . The aluminum alloy clad material according to claim 1 , wherein the sacrificial anode material comprises the aluminum alloy further comprising one or, two or more selected from 0.05 to 2.00 mass % Ni, 0.05 to 2.00 mass % Mn, 0.05 to 3.00 mass % Mg, 0.05 to 0.30 mass % Ti, 0.05 to 0.30 mass % Zr, 0.05 to 0.30 mass % Cr and 0.05 to 0.30 mass % V.

4 . An aluminum alloy clad material having an aluminum alloy core material, a sacrificial anode material clad on one surface of the core material and a brazing filler metal clad on the other surface of the core material,
wherein the core material comprises an aluminum alloy comprising 0.05 to 1.50 mass % Si, 0.05 to 2.00 mass % Fe, 0.50 to 2.00 mass % Mn and a balance of Al and unavoidable impurities, the sacrificial anode material comprises an aluminum alloy comprising 0.50 to 8.00 mass % Zn, 0.05 to 1.50 mass % Si, 0.05 to 2.00 mass % Fe and a balance of Al and unavoidable impurities, the brazing filler metal comprises an aluminum alloy comprising 2.50 to 13.00 mass % Si, 0.05 to 1.20 mass % Fe and a balance of Al and unavoidable impurities, a grain size of the sacrificial anode material is 60 μm or more, and a ratio R1/R2 is 0.30 or less, wherein R1 (μm) is a grain size in a thickness direction and R2 (μm) is a grain size in a rolling direction in a cross section of the core material along the rolling direction.

5 . The aluminum alloy clad material according to claim 4 , wherein the brazing filler metal comprises the aluminum alloy further comprising one or, two or more selected from 0.50 to 8.00 mass % Zn, 0.05 to 1.50 mass % Cu, 0.05 to 2.00 mass % Mn, 0.05 to 0.30 mass % Ti, 0.05 to 0.30 mass % Zr, 0.05 to 0.30 mass % Cr, 0.05 to 0.30 mass % V, 0.001 to 0.050 mass % Na and 0.001 to 0.050 mass % Sr.

6 . The aluminum alloy clad material according to claim 4 , wherein the core material comprises the aluminum alloy further comprising one or, two or more selected from 0.05 to 1.50 mass % Cu, 0.05 to 0.50 mass % Mg, 0.05 to 0.30 mass % Ti, 0.05 to 0.30 mass % Zr, 0.05 to 0.30 mass % Cr and 0.05 to 0.30 mass % V.

7 . The aluminum alloy clad material according to claim 4 , wherein the sacrificial anode material comprises the aluminum alloy further comprising one or, two or more selected from 0.05 to 2.00 mass % Ni, 0.05 to 2.00 mass % Mn, 0.05 to 3.00 mass % Mg, 0.05 to 0.30 mass % Ti, 0.05 to 0.30 mass % Zr, 0.05 to 0.30 mass % Cr and 0.05 to 0.30 mass % V.

8 . An aluminum alloy clad material having an aluminum alloy core material, an intermediate layer material clad on one surface of the core material, a brazing filler metal clad on a surface of the intermediate layer material such that the surface is not the core material side, and a sacrificial anode material clad on the other surface of the core material,
wherein the core material comprises an aluminum alloy comprising 0.05 to 1.50 mass % Si, 0.05 to 2.00 mass % Fe, 0.50 to 2.00 mass % Mn, 0.05 to 0.50 mass % Mg and a balance of Al and unavoidable impurities, the intermediate layer material comprises an aluminum alloy comprising 0.05 to 1.50 mass % Si, 0.05 to 2.00 mass % Fe and a balance of Al and unavoidable impurities, the sacrificial anode material comprises an aluminum alloy comprising 0.50 to 8.00 mass % Zn, 0.05 to 1.50 mass % Si, 0.05 to 2.00 mass % Fe and a balance of Al and unavoidable impurities, the brazing filler metal comprises an aluminum alloy comprising 2.50 to 13.00 mass % Si, 0.05 to 1.20 mass % Fe and a balance of Al and unavoidable impurities, a grain size of the sacrificial anode material is 60 μm or more, and a ratio R1/R2 is 0.30 or less, wherein R1 (μm) is a grain size in a thickness direction and R2 (μm) is a grain size in a rolling direction in a cross section of the core material along the rolling direction.

9 . The aluminum alloy clad material according to claim 8 , wherein the brazing filler metal comprises the aluminum alloy further comprising one or, two or more selected from 0.50 to 8.00 mass % Zn, 0.05 to 1.50 mass % Cu, 0.05 to 2.00 mass % Mn, 0.05 to 0.30 mass % Ti, 0.05 to 0.30 mass % Zr, 0.05 to 0.30 mass % Cr, 0.05 to 0.30 mass % V, 0.001 to 0.050 mass % Na and 0.001 to 0.050 mass % Sr.

10 . The aluminum alloy clad material according to claim 8 , wherein the core material comprises the aluminum alloy further comprising one or, two or more selected from 0.05 to 1.50 mass % Cu, 0.05 to 0.30 mass % Ti, 0.05 to 0.30 mass % Zr, 0.05 to 0.30 mass % Cr and 0.05 to 0.30 mass % V.

11 . The aluminum alloy clad material according to claim 8 , wherein the sacrificial anode material comprises the aluminum alloy further comprising one or, two or more selected from 0.05 to 2.00 mass % Ni, 0.05 to 2.00 mass % Mn, 0.05 to 3.00 mass % Mg, 0.05 to 0.30 mass % Ti, 0.05 to 0.30 mass % Zr, 0.05 to 0.30 mass % Cr and 0.05 to 0.30 mass % V.

12 . The aluminum alloy clad material according to claim 8 , wherein the intermediate layer material comprises the aluminum alloy further comprising one or, two or more selected from 0.50 to 8.00 mass % Zn, 0.05 to 2.00 mass % Mn, 0.05 to 1.50 mass % Cu, 0.05 to 0.30 mass % Ti, 0.05 to 0.30 mass % Zr, 0.05 to 0.30 mass % Cr and 0.05 to 0.30 mass % V.

13 . An aluminum alloy clad material having an aluminum alloy core material, an intermediate layer material clad on one surface of the core material, a brazing filler metal clad on the surface of the intermediate layer material such that the surface is not the core material side, and a sacrificial anode material clad on the other surface of the core material,
wherein the core material comprises an aluminum alloy comprising 0.05 to 1.50 mass % Si, 0.05 to 2.00 mass % Fe, 0.50 to 2.00 mass % Mn and a balance of Al and unavoidable impurities, the intermediate layer material comprises an aluminum alloy comprising 0.05 to 1.50 mass % Si, 0.05 to 2.00 mass % Fe, 0.50 to 8.00 mass % Zn and a balance of Al and unavoidable impurities, the sacrificial anode material comprises an aluminum alloy comprising 0.50 to 8.00 mass % Zn, 0.05 to 1.50 mass % Si, 0.05 to 2.00 mass % Fe and a balance of Al and unavoidable impurities, the brazing filler metal comprises an aluminum alloy comprising 2.50 to 13.00 mass % Si, 0.05 to 1.20 mass % Fe and a balance of Al and unavoidable impurities, a grain size of the sacrificial anode material is 60 μm or more, and a ratio R1/R2 is 0.30 or less, wherein R1 (μm) is a grain size in a thickness direction and R2 (μm) is a grain size in a rolling direction in a cross section of the core material along the rolling direction.

Assignees

• Uacj Corp

Inventors

• Ando Makoto
• Fukumoto Atsushi
• Niikura Akio

Classifications

• C23F2201/00

  Type of materials to be protected by cathodic protection · CPC title

• C22C21/08

  with silicon · CPC title

• C22C21/02

  with silicon as the next major constituent · CPC title

• C22C21/10

  with zinc as the next major constituent · CPC title

• F28F19/06 Primary

  of metal · CPC title