JP2000087166A - Aluminum alloy clad material for heat exchanger excellent in corrosion resistance - Google Patents

Aluminum alloy clad material for heat exchanger excellent in corrosion resistance

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Publication number
JP2000087166A
JP2000087166A JP10253526A JP25352698A JP2000087166A JP 2000087166 A JP2000087166 A JP 2000087166A JP 10253526 A JP10253526 A JP 10253526A JP 25352698 A JP25352698 A JP 25352698A JP 2000087166 A JP2000087166 A JP 2000087166A
Authority
JP
Japan
Prior art keywords
clad
composition
corrosion resistance
sacrificial anode
aluminum alloy
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP10253526A
Other languages
Japanese (ja)
Inventor
Masakazu Edo
正和 江戸
Kazuyuki Sakata
和幸 坂田
Shu Kuroda
周 黒田
Ken Toma
建 当摩
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MA Aluminum Corp
Original Assignee
Mitsubishi Aluminum Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Aluminum Co Ltd filed Critical Mitsubishi Aluminum Co Ltd
Priority to JP10253526A priority Critical patent/JP2000087166A/en
Publication of JP2000087166A publication Critical patent/JP2000087166A/en
Pending legal-status Critical Current

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Abstract

PROBLEM TO BE SOLVED: To provide a clad material excellent in corrosion resistance to pH in a wide range from weak acidity to alkalinity and used as the member for structural purpose such as a heat exchanger or the like. SOLUTION: One side of a core material composed of an Al alloy having a compsn. contg. 0.8 to 1.8% Mn, 0.5 to 1.5% Fe and 0.01 to 0.5% Ce, contg., at need, one or two kinds of 0.1 to 1.0% Si and 0.1 to 0.7% Cu and/or one or two kinds of 0.05 to 0.2% Ti and 0.05 to 0.2% Zr, and the balance Al with inevitable impurities is clad with an Al-Si or Al-Si-Zn brazing filler metal, and the other side of the core material is clad with a sacrificial anode surface material having a compsn. contg. 1 to 10% Zn, 0.3 to 2.0% Fe, 0.01 to 0.5% Ce, and the balance Al with inevitable impurities.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】この発明は、耐食性、特にア
ルカリ環境下から酸性環境下に渡る広範囲pH領域での
耐食性に優れた熱交換器などの構造用部材として用いる
アルミニウム合金クラッド材に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an aluminum alloy clad material used as a structural member of a heat exchanger or the like having excellent corrosion resistance, particularly in a wide pH range from an alkaline environment to an acidic environment. .

【0002】[0002]

【従来の技術】従来、自動車のラジエーターやヒーター
コアのチューブ材としては、Al−Mn系合金からなる
芯材の片面にAl−Si系あるいはAl−Si−Zn系
ろう材をクラッドし、芯材の他方の片面に、犠牲陽極皮
材としてAl−Zn系合金をクラッドした3層のアルミ
ニウム合金クラッド材が使用されている。最も一般に使
用されている具体的なアルミニウム合金クラッド材は、
JIS 3003(重量%で、Mn:1.0〜1.5
%、Fe:0.05〜0.20%、Si:0.6%以
下、Zr:0.7以下%、Zn:0.10以下%、残
部:Alおよび不可避不純物)を芯材とし、その片面に
JIS 7072からなるAl−Zn系合金犠牲陽極皮
材をクラッドし、芯材の他方の片面にAl−Si系ある
いはAl−Si−Zn系ろう材をクラッドしてなるアル
ミニウム合金クラッド材は知られている。前記アルミニ
ウム合金クラッド材のAl−Si系あるいはAl−Si
−Zn系ろう材は、ろう付け時にチューブ材とフィン材
の接合、およびチューブ材とヘッダープレートとの接合
に用いられ、犠牲陽極皮材は芯材と電気化学的性質の違
いにより皮材を主として腐食し、芯材の孔食を抑制する
作用をなすものである。
2. Description of the Related Art Conventionally, as a tube material for a radiator or a heater core of an automobile, a core material made of an Al-Mn alloy is clad on one surface with an Al-Si or Al-Si-Zn brazing material. On the other side, a three-layer aluminum alloy clad material clad with an Al—Zn-based alloy is used as a sacrificial anode skin material. The most commonly used specific aluminum alloy clad materials are:
JIS 3003 (% by weight, Mn: 1.0 to 1.5)
%, Fe: 0.05 to 0.20%, Si: 0.6% or less, Zr: 0.7% or less, Zn: 0.10% or less, balance: Al and unavoidable impurities) as a core material. An aluminum alloy clad material is known in which an Al-Zn alloy sacrificial anode skin material of JIS 7072 is clad on one surface and an Al-Si or Al-Si-Zn braze material is clad on the other surface of the core material. Have been. Al-Si or Al-Si of the aluminum alloy clad material
-Zn-based brazing material is used for joining the tube material and the fin material and joining the tube material and the header plate during brazing, and the sacrificial anode skin material is mainly made of skin material due to the difference in the core material and electrochemical properties. It acts to corrode and suppress pitting of the core material.

【0003】また、耐食性に優れるアルミニウム合金ク
ラッド材の一つとして、Al−Mn系合金からなる芯材
の片面にAl−Si系あるいはAl−Si−Zn系ろう
材をクラッドし、芯材の他方の片面に、重量%で(以下
%は重量%を示す)Zn:1.0〜3.0%、Mg:
0.5〜3.0%、Si:0.05〜0.5%、Fe:
0.05〜0.5%を含有し、さらにY:0.01〜
0.8%、Ce:0.01〜1.5%、La:0.01
〜1.5%、Nd:0.01〜1.5%、Pr:0.0
1〜1.5%の内の1種または2種以上を含有するAl
合金からなる犠牲陽極皮材をクラッドしてなる熱交換器
用アルミニウム合金クラッド材が知られている(特開平
5−117796号公報参照)。
As one of aluminum alloy clad materials having excellent corrosion resistance, an Al-Si or Al-Si-Zn brazing material is clad on one surface of a core material made of an Al-Mn alloy, and the other of the core material is used. On one side of Zn: 1.0 to 3.0% by weight (hereinafter,% indicates weight%), Mg:
0.5-3.0%, Si: 0.05-0.5%, Fe:
0.05-0.5%, and Y: 0.01-
0.8%, Ce: 0.01 to 1.5%, La: 0.01
-1.5%, Nd: 0.01-1.5%, Pr: 0.0
Al containing one or more of 1 to 1.5%
There is known an aluminum alloy clad material for a heat exchanger obtained by cladding a sacrificial anode skin material made of an alloy (see Japanese Patent Application Laid-Open No. 5-117796).

【0004】[0004]

【発明が解決しようとする課題】前記従来のアルミニウ
ム合金クラッド材は、ラジエーターやヒーターコアのチ
ューブ材として熱交換器に使用した場合、弱酸性から中
性領域では優れた犠牲陽極効果を発揮する。しかし、実
際に使用される冷却水は不凍液と防錆剤からなるLLC
(ロングライフクーラント)が混入したアルカリ性を示
すものであり、冷却水がpH9以上のアルカリ性溶液の
場合なお耐食性が十分でなく、早期に孔食が発生した
り、防食効果が発揮されない場合がある。したがって、
近年、弱酸性溶液からpH10以上のアルカリ性溶液に
渡る広範囲pH領域の水溶液に対して優れた耐食性を示
すアルミニウム合金クラッド材が求められている。
When the conventional aluminum alloy clad material is used in a heat exchanger as a tube material for a radiator or a heater core, it exhibits an excellent sacrificial anode effect in a weakly acidic to neutral region. However, the cooling water actually used is LLC composed of antifreeze and rust inhibitor.
(Long life coolant) indicates alkalinity. If the cooling water is an alkaline solution having a pH of 9 or more, the corrosion resistance is still insufficient, and pitting may occur early or the anticorrosion effect may not be exhibited. Therefore,
In recent years, there has been a demand for an aluminum alloy clad material exhibiting excellent corrosion resistance to aqueous solutions in a wide pH range from a weakly acidic solution to an alkaline solution having a pH of 10 or more.

【0005】[0005]

【課題を解決するための手段】そこで本発明者らは、弱
酸性溶液からpH10以上のアルカリ性溶液に渡る広範
囲pH領域の水溶液に対して従来よりも一層耐食性に優
れたアルミニウム合金クラッド材を得るべく研究を行っ
た結果、(a)芯材および犠牲陽極皮材の両方にCeを
添加した材料を使用し、Mn:0.8〜1.8%、F
e:0.5〜1.5%、Ce:0.01〜0.5%を含
有し、残りがAlおよび不可避不純物からなる組成のA
l合金からなる芯材の一方の片面に、Al−Si系ある
いはAl−Si−Zn系ろう材をクラッドし、該芯材の
他方の片面に、Zn:1〜10%、Fe:0.3〜2.
0%、Ce:0.01〜0.5%を含有し、残りがAl
および不可避不純物からなる組成の犠牲陽極皮材をクラ
ッドして得られたアルミニウム合金クラッド材は、弱酸
性溶液からpH10以上のアルカリ性溶液までの広い範
囲のpH領域の水溶液に対して耐食性が従来よりも一層
向上し、熱交換器用構造材として優れたものとなる、
(b)前記(a)に記載の芯材に、Si:0.1〜1.
0%、Cu:0.1〜0.7%の内の1種もしくは2
種、またはTi:0.05〜0.2%、Zr:0.05
〜0.2%の内の1種もしくは2種を含有してもよく、
さらにSi:0.1〜1.0%、Cu:0.1〜0.7
%の内の1種または2種、およびTi:0.05〜0.
2%、Zr:0.05〜0.2%の内の1種または2種
を同時に含有してもよい、という知見を得たのである。
SUMMARY OF THE INVENTION Accordingly, the present inventors have made an attempt to obtain an aluminum alloy clad material which is more excellent in corrosion resistance than aqueous solutions in a wide pH range from a weakly acidic solution to an alkaline solution having a pH of 10 or more. As a result of research, (a) using a material in which Ce is added to both the core material and the sacrificial anode skin material, Mn: 0.8-1.8%, F
e: 0.5 to 1.5%, Ce: 0.01 to 0.5%, the balance of which is composed of Al and unavoidable impurities.
Al-Si or Al-Si-Zn-based brazing material is clad on one surface of a core material made of a 1-alloy, and Zn: 1-10%, Fe: 0.3 on the other surface of the core material. ~ 2.
0%, Ce: 0.01 to 0.5%, the remainder being Al
The aluminum alloy clad material obtained by cladding a sacrificial anode skin material having a composition consisting of unavoidable impurities has a higher corrosion resistance to aqueous solutions in a wide range of pH ranges from a weakly acidic solution to an alkaline solution having a pH of 10 or more. It is further improved and becomes excellent as a structural material for heat exchangers.
(B) Si: 0.1-1.
0%, Cu: one or more of 0.1 to 0.7%
Seed or Ti: 0.05-0.2%, Zr: 0.05
0.20.2% of one or two of
Further, Si: 0.1 to 1.0%, Cu: 0.1 to 0.7
%, And Ti: 0.05-0.
It has been found that one or two of 2% and Zr: 0.05 to 0.2% may be simultaneously contained.

【0006】この発明は、かかる知見に基づいて成され
たものであって、(1)Mn:0.8〜1.8%、F
e:0.5〜1.5%、Ce:0.01〜0.5%を含
有し、残りがAlおよび不可避不純物からなる組成のA
l合金からなる芯材の一方の片面に、Al−Si系ある
いはAl−Si−Zn系ろう材をクラッドし、該芯材の
他方の片面に、Zn:1〜10%、Fe:0.3〜2.
0%、Ce:0.01〜0.5%を含有し、残りがAl
および不可避不純物からなる組成の犠牲陽極皮材をクラ
ッドしてなる耐食性に優れた熱交換器用アルミニウム合
金クラッド材、(2)Mn:0.8〜1.8%、Fe:
0.5〜1.5%、Ce:0.01〜0.5%、Si:
0.1〜1.0%を含有し、残りがAlおよび不可避不
純物からなる組成のAl合金からなる芯材の一方の片面
に、Al−Si系あるいはAl−Si−Zn系ろう材を
クラッドし、該芯材の他方の片面に、Zn:1〜10
%、Fe:0.3〜2.0%、Ce:0.01〜0.5
%を含有し、残りがAlおよび不可避不純物からなる組
成の犠牲陽極皮材をクラッドしてなる耐食性に優れた熱
交換器用アルミニウム合金クラッド材、(3)Mn:
0.8〜1.8%、Fe:0.5〜1.5%、Ce:
0.01〜0.5%、Cu:0.1〜0.7%を含有
し、残りがAlおよび不可避不純物からなる組成のAl
合金からなる芯材の一方の片面に、Al−Si系あるい
はAl−Si−Zn系ろう材をクラッドし、該芯材の他
方の片面に、Zn:1〜10%、Fe:0.3〜2.0
%、Ce:0.01〜0.5%を含有し、残りがAlお
よび不可避不純物からなる組成の犠牲陽極皮材をクラッ
ドしてなる耐食性に優れた熱交換器用アルミニウム合金
クラッド材、(4)Mn:0.8〜1.8%、Fe:
0.5〜1.5%、Ce:0.01〜0.5%、Si:
0.1〜1.0%、Cu:0.1〜0.7%を含有し、
残りがAlおよび不可避不純物からなる組成のAl合金
からなる芯材の一方の片面に、Al−Si系あるいはA
l−Si−Zn系ろう材をクラッドし、該芯材の他方の
片面に、Zn:1〜10%、Fe:0.3〜2.0%、
Ce:0.01〜0.5%を含有し、残りがAlおよび
不可避不純物からなる組成の犠牲陽極皮材をクラッドし
てなる耐食性に優れた熱交換器用アルミニウム合金クラ
ッド材、(5)Mn:0.8〜1.8%、Fe:0.5
〜1.5%、Ce:0.01〜0.5%、Ti:0.0
5〜0.2%を含有し、残りがAlおよび不可避不純物
からなる組成のAl合金からなる芯材の一方の片面に、
Al−Si系あるいはAl−Si−Zn系ろう材をクラ
ッドし、該芯材の他方の片面に、Zn:1〜10%、F
e:0.3〜2.0%、Ce:0.01〜0.5%を含
有し、残りがAlおよび不可避不純物からなる組成の犠
牲陽極皮材をクラッドしてなる耐食性に優れた熱交換器
用アルミニウム合金クラッド材、(6)Mn:0.8〜
1.8%、Fe:0.5〜1.5%、Ce:0.01〜
0.5%、Zr:0.05〜0.2%を含有し、残りが
Alおよび不可避不純物からなる組成のAl合金からな
る芯材の一方の片面に、Al−Si系あるいはAl−S
i−Zn系ろう材をクラッドし、該芯材の他方の片面
に、Zn:1〜10%、Fe:0.3〜2.0%、C
e:0.01〜0.5%を含有し、残りがAlおよび不
可避不純物からなる組成の犠牲陽極皮材をクラッドして
なる耐食性に優れた熱交換器用アルミニウム合金クラッ
ド材、(7)Mn:0.8〜1.8%、Fe:0.5〜
1.5%、Ce:0.01〜0.5%、Ti:0.05
〜0.2%、Zr:0.05〜0.2%を含有し、残り
がAlおよび不可避不純物からなる組成のAl合金から
なる芯材の一方の片面に、Al−Si系あるいはAl−
Si−Zn系ろう材をクラッドし、該芯材の他方の片面
に、Zn:1〜10%、Fe:0.3〜2.0%、C
e:0.01〜0.5%を含有し、残りがAlおよび不
可避不純物からなる組成の犠牲陽極皮材をクラッドして
なる耐食性に優れた熱交換器用アルミニウム合金クラッ
ド材、(8)前記(2)、(3)または(4)記載の芯
材に、さらに、Ti:0.05〜0.2%含有し、残り
がAlおよび不可避不純物からなる組成のAl合金から
なる芯材の一方の片面に、Al−Si系あるいはAl−
Si−Zn系ろう材をクラッドし、該芯材の他方の片面
に、Zn:1〜10%、Fe:0.3〜2.0%、C
e:0.01〜0.5%を含有し、残りがAlおよび不
可避不純物からなる組成の犠牲陽極皮材をクラッドして
なる耐食性に優れた熱交換器用アルミニウム合金クラッ
ド材、(9)前記(2)、(3)または(4)記載の芯
材に、さらに、Zr:0.05〜0.2%含有し、残り
がAlおよび不可避不純物からなる組成のAl合金から
なる芯材の一方の片面に、Al−Si系あるいはAl−
Si−Zn系ろう材をクラッドし、該芯材の他方の片面
に、Zn:1〜10%、Fe:0.3〜2.0%、C
e:0.01〜0.5%を含有し、残りがAlおよび不
可避不純物からなる組成の犠牲陽極皮材をクラッドして
なる耐食性に優れた熱交換器用アルミニウム合金クラッ
ド材、(10)前記(2)、(3)または(4)記載の芯
材に、さらにTi:0.05〜0.2%、Zr:0.0
5〜0.2%含有し、残りがAlおよび不可避不純物か
らなる組成のAl合金からなる芯材の一方の片面に、A
l−Si系あるいはAl−Si−Zn系ろう材をクラッ
ドし、該芯材の他方の片面に、Zn:1〜10%、F
e:0.3〜2.0%、Ce:0.01〜0.5%を含
有し、残りがAlおよび不可避不純物からなる組成の犠
牲陽極皮材をクラッドしてなる耐食性に優れた熱交換器
用アルミニウム合金クラッド材、に特徴を有するもので
ある。
The present invention has been made based on such findings, and (1) Mn: 0.8 to 1.8%, F
e: 0.5 to 1.5%, Ce: 0.01 to 0.5%, the balance of which is composed of Al and unavoidable impurities.
Al-Si or Al-Si-Zn-based brazing material is clad on one surface of a core material made of a 1-alloy, and Zn: 1-10%, Fe: 0.3 on the other surface of the core material. ~ 2.
0%, Ce: 0.01 to 0.5%, the remainder being Al
And an aluminum alloy clad material for a heat exchanger having excellent corrosion resistance obtained by cladding a sacrificial anode skin material having a composition composed of unavoidable impurities, (2) Mn: 0.8 to 1.8%, Fe:
0.5-1.5%, Ce: 0.01-0.5%, Si:
An Al-Si-based or Al-Si-Zn-based brazing material is clad on one surface of a core material containing 0.1 to 1.0%, the balance being an Al alloy having a composition consisting of Al and unavoidable impurities. And Zn on the other side of the core material: 1 to 10
%, Fe: 0.3 to 2.0%, Ce: 0.01 to 0.5
% Aluminum alloy clad material for heat exchangers having excellent corrosion resistance and clad with a sacrificial anode skin material having a composition of Al and unavoidable impurities. (3) Mn:
0.8-1.8%, Fe: 0.5-1.5%, Ce:
Al having a composition containing 0.01 to 0.5% and Cu: 0.1 to 0.7%, with the balance being Al and unavoidable impurities
An Al-Si-based or Al-Si-Zn-based brazing material is clad on one surface of a core material made of an alloy, and Zn: 1-10%, Fe: 0.3- 2.0
%, Ce: 0.01 to 0.5%, the remainder being clad with a sacrificial anode skin material having a composition of Al and unavoidable impurities, an aluminum alloy clad material for a heat exchanger having excellent corrosion resistance, (4) Mn: 0.8-1.8%, Fe:
0.5-1.5%, Ce: 0.01-0.5%, Si:
0.1-1.0%, Cu: 0.1-0.7%,
On one surface of a core material composed of an Al alloy having a composition consisting of Al and unavoidable impurities, an Al-Si or A
An l-Si-Zn brazing material is clad, and on the other side of the core material, Zn: 1 to 10%, Fe: 0.3 to 2.0%,
(5) Mn: Ce: an aluminum alloy clad material for heat exchangers having excellent corrosion resistance obtained by cladding a sacrificial anode skin material having a composition of 0.01 to 0.5% and the balance of Al and inevitable impurities. 0.8-1.8%, Fe: 0.5
To 1.5%, Ce: 0.01 to 0.5%, Ti: 0.0
5 to 0.2%, the balance being on one side of a core made of an Al alloy having a composition of Al and inevitable impurities,
An Al-Si-based or Al-Si-Zn-based brazing material is clad and Zn: 1-10%, F:
Heat exchange excellent in corrosion resistance formed by cladding a sacrificial anode skin material having a composition of e: 0.3 to 2.0% and Ce: 0.01 to 0.5%, the balance being Al and unavoidable impurities. Aluminum alloy clad material, (6) Mn: 0.8 ~
1.8%, Fe: 0.5 to 1.5%, Ce: 0.01 to
0.5%, Zr: 0.05 to 0.2%, the balance being made of an Al-Si or Al-S-based material on one side of a core material made of an Al alloy having a composition of Al and unavoidable impurities.
An i-Zn-based brazing material is clad, and on the other side of the core material, Zn: 1 to 10%, Fe: 0.3 to 2.0%, C:
e: an aluminum alloy clad material for a heat exchanger excellent in corrosion resistance, which is formed by cladding a sacrificial anode skin material having a composition of 0.01 to 0.5% and the balance of Al and inevitable impurities, (7) Mn: 0.8 to 1.8%, Fe: 0.5 to
1.5%, Ce: 0.01 to 0.5%, Ti: 0.05
To 0.2%, Zr: 0.05 to 0.2%, the balance being made of Al-Si or Al-Si on one surface of a core material made of an Al alloy having a composition of Al and unavoidable impurities.
A Si—Zn-based brazing material is clad and Zn: 1-10%, Fe: 0.3-2.0%, C:
e: an aluminum alloy clad material for a heat exchanger having excellent corrosion resistance obtained by cladding a sacrificial anode skin material having a composition of 0.01 to 0.5% and the balance of Al and inevitable impurities, (8) the above ( 2), the core material according to (3) or (4), further containing one of Ti and 0.05 to 0.2%, and the balance being one of core materials made of an Al alloy having a composition of Al and unavoidable impurities. On one side, Al-Si or Al-
A Si—Zn-based brazing material is clad and Zn: 1-10%, Fe: 0.3-2.0%, C:
e: an aluminum alloy clad material for a heat exchanger having excellent corrosion resistance obtained by cladding a sacrificial anode skin material having a composition of 0.01 to 0.5% and the balance of Al and inevitable impurities, (9) the above ( 2) The core material according to (3) or (4) further contains 0.05 to 0.2% of Zr, and the remainder is one of the core materials made of an Al alloy having a composition of Al and unavoidable impurities. On one side, Al-Si or Al-
A Si—Zn-based brazing material is clad and Zn: 1-10%, Fe: 0.3-2.0%, C:
e: an aluminum alloy clad material for heat exchangers having excellent corrosion resistance obtained by cladding a sacrificial anode skin material having a composition of 0.01 to 0.5% and the balance of Al and inevitable impurities, (10) the above ( 2), the core material described in (3) or (4), further Ti: 0.05 to 0.2%, Zr: 0.0
5 to 0.2%, and the balance is made of an Al alloy having a composition of Al and unavoidable impurities.
1-Si or Al-Si-Zn brazing material is clad, and Zn: 1-10%, F:
Heat exchange excellent in corrosion resistance formed by cladding a sacrificial anode skin material having a composition of e: 0.3 to 2.0% and Ce: 0.01 to 0.5%, the balance being Al and unavoidable impurities. Aluminum alloy clad material.

【0007】この発明の熱交換器用アルミニウム合金ク
ラッド材の成分組成を上述のごとく限定した理由を述べ
る。 (A)芯材 Mn:Mnは、芯材素地中にAl−Mn金属間化合物と
して分散し、耐食性を低下させることなく強度を向上せ
しめる成分であるが、その含有量が0.8%未満では所
望の効果が得られず、一方、1.8%を越えて含有する
と粗大な金属間化合物の生成によって加工性が低下する
ので好ましくない。したがって、Mnの含有量を0.8
〜1.8%に定めた。Mnの含有量のいっそう好ましい
範囲は1.0〜1.5%である。
The reason why the composition of the aluminum alloy clad material for a heat exchanger of the present invention is limited as described above will be described. (A) Core material Mn: Mn is a component which is dispersed in the core material as an Al-Mn intermetallic compound and improves the strength without deteriorating the corrosion resistance. The desired effect cannot be obtained. On the other hand, when the content exceeds 1.8%, the workability is deteriorated due to the formation of a coarse intermetallic compound, which is not preferable. Therefore, the content of Mn is set to 0.8
% 1.8%. A more preferred range for the Mn content is 1.0 to 1.5%.

【0008】Fe:Feは、素地中にAl−Fe金属間
化合物を微細に分散させるために面食の腐食形態とな
り、腐食速度を遅くするが、その含有量が0.5%未満
では所望の効果が得られず、一方、1.5%を越えると
芯材の自己腐食性が増大するので好ましくない。したが
って、Feの含有量は、0.5〜1.5%に定めた。F
eの含有量のいっそう好ましい範囲は0.5〜1.0%
である。
Fe: Fe becomes a form of corroded corrosion due to finely dispersing the Al-Fe intermetallic compound in the base material and slows down the corrosion rate. If the content is less than 0.5%, the desired effect is obtained. On the other hand, if it exceeds 1.5%, the self-corrosion of the core material increases, which is not preferable. Therefore, the content of Fe is set to 0.5 to 1.5%. F
The more preferable range of the content of e is 0.5 to 1.0%.
It is.

【0009】Ce:Ceは、鋳造時の晶出物を微細に
し、さらに、ろう付け時に過飽和に固溶した溶質元素の
析出を促進するため、強度を向上させる作用を有すると
共に、微細な析出物を数多く析出させるため、孔食ピッ
トの発生起点が多くなり、面食の腐食形態となって巨大
な孔食の発生を抑制する作用があるが、その含有量が
0.01%未満では所望の効果が得られず、一方、0.
5%を越えると芯材の自己腐食性が増大すると共に加工
性が低下するので好ましくない。したがって、Ceの含
有量は、0.01〜0.5%に定めた。Ceの含有量の
いっそう好ましい範囲は0.05〜0.1%である。
Ce: Ce has a function of improving the strength in order to make crystallized substances at the time of casting finer and further promote precipitation of a supersaturated solute element at the time of brazing. Causes a large number of pits to be generated, thereby increasing the number of origins of pitting pits, and has the effect of suppressing the occurrence of giant pitting due to the form of surface erosion. However, if the content is less than 0.01%, the desired effect is obtained. Is not obtained, while 0.
If it exceeds 5%, the self-corrosiveness of the core material increases and the workability decreases, which is not preferable. Therefore, the content of Ce is set to 0.01 to 0.5%. A more preferred range for the Ce content is 0.05-0.1%.

【0010】Si:Siは、Mnと共存させることによ
りAl−Mn−Si金属間化合物となって素地中に分
散、あるいはマトリックスに固溶して芯材の強度を向上
させる作用があるので必要に応じて添加するが、その含
有量が0.1%未満では所望の効果が得られず、一方、
1.0%を越えて含有すると芯材の融点を低下させるの
で好ましくない。したがって、Siの含有量を0.1〜
1.0%に定めた。Siの含有量のいっそう好ましい範
囲は0.2〜0.5%である。
Si: Si is required to be an Al-Mn-Si intermetallic compound by coexisting with Mn to disperse in the matrix or dissolve in the matrix to improve the strength of the core material. However, if the content is less than 0.1%, the desired effect cannot be obtained.
If the content exceeds 1.0%, the melting point of the core material is undesirably lowered. Therefore, the content of Si is 0.1 to
It was set to 1.0%. A more preferred range for the Si content is 0.2-0.5%.

【0011】Cu:芯材に含まれるCuは、マトリック
スに固溶して芯材の強度を向上させると共に、芯材の電
気化学的性質を貴にして、犠牲陽極皮材およびろう材と
の電位差を大きくする作用を有するので必要に応じて添
加するが、その含有量が0.1%未満では所望の効果が
得られず、一方、0.7%を越えて含有すると芯材の融
点が低下するためろう付け時に材料が溶融しやすく、さ
らに酸性溶液中で粒界腐食が起こりやすくなり、耐食性
が低下するので好ましくない。したがって、Cuの含有
量を0.1〜0.7%に定めた。Cuの含有量の一層好
ましい範囲は0.3〜0.5%である。
Cu: Cu contained in the core material forms a solid solution in the matrix to improve the strength of the core material, make the electrochemical properties of the core material noble, and make the potential difference between the sacrificial anode skin material and the brazing material. It is added as necessary because it has the effect of increasing the content. However, if the content is less than 0.1%, the desired effect cannot be obtained. On the other hand, if the content exceeds 0.7%, the melting point of the core material decreases. Therefore, the material is easily melted at the time of brazing, and furthermore, intergranular corrosion is likely to occur in an acidic solution, and the corrosion resistance is undesirably reduced. Therefore, the content of Cu is set to 0.1 to 0.7%. A more preferred range for the Cu content is 0.3 to 0.5%.

【0012】Ti:Ti成分は、ろう付け後に微細な金
属間化合物として素地中に分散し、芯材の強度を向上さ
せる作用を有するので必要に応じて添加するが、その含
有量が0.05%未満では所望の効果が得られず、一
方、0.2%を越えると加工性を阻害するので好ましく
ない。したがって、Tiの含有量は0.05〜0.2%
に定めた。Tiの含有量の一層好ましい範囲は0.07
〜0.15%である。
Ti: The Ti component is dispersed as a fine intermetallic compound in the base material after brazing and has the effect of improving the strength of the core material, and is added as necessary. If it is less than 0.2%, the desired effect cannot be obtained. On the other hand, if it exceeds 0.2%, processability is impaired, which is not preferable. Therefore, the content of Ti is 0.05 to 0.2%.
Determined. A more preferred range for the Ti content is 0.07.
~ 0.15%.

【0013】Zr:ZrもTiと同様に、ろう付け後に
微細な金属間化合物として素地中に分散し、芯材の強度
を向上させる作用を有するので必要に応じて添加する
が、その含有量が0.05%未満では所望の効果が得ら
れず、一方、0.2%を越えると加工性を阻害するので
好ましくない。したがって、Zrの含有量は0.05〜
0.2%に定めた。Zrの含有量の一層好ましい範囲も
0.07〜0.18%である。
Zr: Like Ti, Zr is also dispersed as a fine intermetallic compound in the base material after brazing and has the effect of improving the strength of the core material. Zr is added as necessary. If it is less than 0.05%, the desired effect cannot be obtained. On the other hand, if it exceeds 0.2%, processability is impaired, which is not preferable. Therefore, the content of Zr is 0.05 to
It was set to 0.2%. A more preferable range of the Zr content is 0.07 to 0.18%.

【0014】(B)犠牲陽極皮材 Fe:Feは、素地中にAl−Fe金属間化合物を微細
に分散させるために、そこを起点として材料表面に微小
ピットが多数発生するが、その数が多く材料表面に均一
に分布するため腐食深さは浅くなり、腐食形態は面食と
なるため、深い孔食は発生しない。しかし犠牲陽極皮材
に含まれるFeの含有量が0.3%未満では所望の効果
が得られず、一方、2.0%を越えると犠牲陽極皮材の
自己腐食性が増大するので好ましくない。したがって、
Feの含有量は、0.3〜2.0%に定めた。Feの含
有量の一層好ましい範囲は0.5〜1.0%である。
(B) Sacrificial anode skin material Fe: Fe has a number of fine pits generated on the surface of the material starting from the finely dispersed Al-Fe intermetallic compound in order to finely disperse the Al-Fe intermetallic compound. Since many are uniformly distributed on the surface of the material, the corrosion depth becomes shallow, and since the corrosion form becomes surface corrosion, deep pitting does not occur. However, if the content of Fe contained in the sacrificial anode skin material is less than 0.3%, the desired effect cannot be obtained. On the other hand, if it exceeds 2.0%, the self-corrosion of the sacrificial anode skin material increases, which is not preferable. . Therefore,
The content of Fe was set to 0.3 to 2.0%. A more preferred range of the Fe content is 0.5 to 1.0%.

【0015】Zn:Znは、犠牲陽極皮材の電位を卑に
し、芯材に対する犠牲陽極効果を向上させ、芯材に孔食
が発生するのを防止する作用を有するが、その含有量が
1%未満では酸性領域で十分な犠牲陽極効果が得られ
ず、一方、10%を越えて含有すると自己腐食性が増大
し過ぎて好ましくない。したがって、犠牲陽極皮材中の
Zn含有量は、1〜10%に定めた。Znの含有量の一
層好ましい範囲は4.1〜6.0%である。
Zn: Zn has the effect of making the potential of the sacrificial anode skin material low, improving the sacrificial anode effect on the core material, and preventing pitting from occurring in the core material. If it is less than 10%, a sufficient sacrificial anode effect cannot be obtained in the acidic region. On the other hand, if it exceeds 10%, the self-corrosion property is undesirably increased too much. Therefore, the Zn content in the sacrificial anode skin material was set to 1 to 10%. A more preferable range of the Zn content is 4.1 to 6.0%.

【0016】Ce:Ceは、鋳造時の晶出物を微細に
し、さらに、ろう付け時に過飽和に固溶した溶質元素の
析出を促進するため、強度を向上させる作用を有すると
共に、微細な析出物を数多く析出させるため、孔食ピッ
トの発生起点が多くなり、面食の腐食形態となって巨大
な孔食の発生を抑制する作用があるが、その含有量が
0.01%未満では所望の効果が得られず、一方、0.
5%を越えると自己腐食性が増大すると共に加工性が低
下するので好ましくない。したがって、Ceの含有量
は、0.01〜0.5%に定めた。Ceの含有量のいっ
そう好ましい範囲は0.05〜0.1%である。
Ce: Ce has a function of improving the strength in order to make crystallized substances at the time of casting fine and further promote the precipitation of supersaturated solute elements at the time of brazing. Causes a large number of pits to be generated, thereby increasing the number of origins of pitting pits, and has the effect of suppressing the occurrence of giant pitting due to the form of surface erosion. However, if the content is less than 0.01%, the desired effect is obtained. Is not obtained, while 0.
If it exceeds 5%, the self-corrosion property increases and the workability deteriorates, which is not preferable. Therefore, the content of Ce is set to 0.01 to 0.5%. A more preferred range for the Ce content is 0.05-0.1%.

【0017】(C)ろう材 この発明の熱交換器用アルミニウム合金クラッド材で使
用するろう材は、通常のAl−Si系あるいはAl−S
i−Zn系ろう材であればよく、特に限定されるもので
はないが、ろう材中に含まれるSiは融点を下げると共
に流動性を付与する成分であり、その含有量が5%未満
では所望の効果が得られず、一方、15%を越えて含有
するとかえって流動性が低下するので好ましくない。し
たがって、ろう材中のSiの含有量を3〜15%に定め
た。ろう材中のSiの含有量のいっそう好ましい範囲は
5〜12%である。また、Al−Si−Zn系ろう材に
含まれるZnは1.0〜5.0%が好ましい。
(C) Brazing material The brazing material used in the aluminum alloy clad material for a heat exchanger of the present invention is a common Al-Si or Al-S
It is not particularly limited as long as it is an i-Zn-based brazing material, but Si contained in the brazing material is a component that lowers the melting point and imparts fluidity. Cannot be obtained. On the other hand, if the content exceeds 15%, the fluidity is rather lowered, which is not preferable. Therefore, the content of Si in the brazing material is set to 3 to 15%. A more preferred range for the content of Si in the brazing material is 5 to 12%. Further, the content of Zn contained in the Al-Si-Zn-based brazing material is preferably 1.0 to 5.0%.

【0018】[0018]

【発明の実施の形態】表1〜表3に示す成分組成のAl
合金を溶解し、鋳造してインゴットを製造し、このイン
ゴットを通常の条件で均質化処理後、熱間圧延を行い、
厚さ:150mmの熱延板からなる芯材a〜Dを作製し
た。
BEST MODE FOR CARRYING OUT THE INVENTION Al having the component composition shown in
The alloy is melted, cast to produce an ingot, and the ingot is homogenized under normal conditions, hot-rolled,
Core materials a to D made of a hot-rolled sheet having a thickness of 150 mm were prepared.

【0019】[0019]

【表1】 [Table 1]

【0020】[0020]

【表2】 [Table 2]

【0021】[0021]

【表3】 (*印は、この発明の範囲から外れている値を示す)[Table 3] (The asterisks indicate values outside the scope of the invention.)

【0022】さらに、表4〜5に示す成分組成のAl合
金を溶解し、鋳造してインゴットを製造し、このインゴ
ットを通常の条件で均質化処理後、熱間圧延を行い、厚
さ:30mmの熱延板からなる犠牲陽極皮材ア〜トを作
製した。
Further, an Al alloy having a component composition shown in Tables 4 and 5 was melted and cast to produce an ingot. The ingot was homogenized under ordinary conditions, and then hot-rolled to a thickness of 30 mm. A sacrificial anode skin material made of a hot rolled sheet was prepared.

【0023】[0023]

【表4】 [Table 4]

【0024】[0024]

【表5】 (*印は、この発明の範囲から外れている値を示す)[Table 5] (The asterisks indicate values outside the scope of the invention.)

【0025】一方、表6に示す成分組成のAl合金を溶
解し、鋳造してインゴットを製造し、このインゴットを
通常の条件で熱間圧延を行い、厚さ:20mmの熱延板
からなるろう材〜を作製した。
On the other hand, an Al alloy having the composition shown in Table 6 is melted and cast to produce an ingot, and the ingot is subjected to hot rolling under ordinary conditions to be made of a hot-rolled sheet having a thickness of 20 mm. Materials were prepared.

【0026】[0026]

【表6】 [Table 6]

【0027】これら表1〜表3の芯材a〜D、表4〜表
5の犠牲陽極皮材ア〜トおよび表6のろう材〜を表
7〜表9に示される組み合わせにしたがって重ね合わ
せ、熱間圧延にてクラッドし、引き続いて中間焼鈍を行
ったのち、冷間圧延を行うことによりいずれも板厚:
0.25mm、犠牲陽極皮材およびろう材にクラッド率
がそれぞれ15%および10%で調質H14の本発明ク
ラッド材1〜63、比較クラッド材1〜7および従来ク
ラッド材1〜3を作製した。これら本発明クラッド材1
〜63、比較クラッド材1〜7および従来クラッド材1
〜2を用いてそれぞれの試験片を作製し、これら試験片
を600℃に3分間保持した後、冷却速度:100℃/
min.で室温まで冷却するろう付けを想定した熱処理
を行い、その後、下記の条件の腐食試験を行った。
The core materials a to D of Tables 1 to 3, the sacrificial anode skin material of Tables 4 to 5 and the brazing material of Table 6 are superposed in accordance with the combinations shown in Tables 7 to 9. After the cladding by hot rolling, followed by intermediate annealing, and then cold rolling, the thickness of each of them is:
Cladding rates of 15% and 10% for the sacrificial anode skin material and the brazing material were 0.25 mm, and the clad materials 1 to 63 of the present invention and the comparative clad materials 1 to 7 and the conventional clad materials 1 to 3 were prepared. . These clad materials 1 of the present invention
~ 63, Comparative clad materials 1-7 and conventional clad material 1
, Each of which was prepared at a temperature of 600 ° C. for 3 minutes, and then cooled at a rate of 100 ° C. /
min. , A heat treatment was performed assuming brazing to cool to room temperature, and then a corrosion test under the following conditions was performed.

【0028】腐食試験1 Cl- :195ppm,SO4 2-:60ppm,F
3+:30ppm,Cu2+:1ppmを含む水溶液(p
H:3.4)を腐食液として用意し、前記本発明クラッ
ド材1〜73、比較クラッド材1〜7および従来クラッ
ド材1〜2の熱処理した試験片を自動車用熱交換器の冷
却水を想定して、流速:1m/sec.で流れている温
度:80℃の腐食液の中に8時間浸漬保持した後、室温
の静止腐食液の中に16時間浸漬保持すると云う温度サ
イクルを加える操作を60日間行い、60日間経過後の
犠牲陽極皮材層の表面からの最大腐食深さを測定し、そ
の測定結果を表7〜表10に示した。
Corrosion test 1 Cl : 195 ppm, SO 4 2− : 60 ppm, F
An aqueous solution containing 30 ppm of e 3+ and 1 ppm of Cu 2+ (p
H: 3.4) was prepared as a corrosive liquid, and the heat-treated test pieces of the clad materials 1 to 73 of the present invention, the comparative clad materials 1 to 7 and the conventional clad materials 1 to 2 were cooled with a cooling water for a heat exchanger for automobiles. Assuming a flow rate of 1 m / sec. The temperature at which the immersion is carried out in a corrosive solution at 80 ° C. for 8 hours, followed by a temperature cycle of immersing and holding in a static corrosive solution at room temperature for 16 hours for 60 days. The maximum corrosion depth from the surface of the sacrificial anode skin layer was measured, and the measurement results are shown in Tables 7 to 10.

【0029】腐食試験2 Cl- :195ppm,SO4 2-:60ppm,F
3+:30ppm,Cu2+:1ppmを含む水溶液をN
aOHでpH11に調整した水溶液を腐食液として用意
し、前記本発明クラッド材1〜63、比較クラッド材1
〜7および従来クラッド材1〜2の熱処理した試験片を
自動車用熱交換器の冷却水を想定して、流速:1m/s
ec.で流れている温度:80℃の腐食液の中に8時間
浸漬保持した後、室温の静止腐食液の中に16時間に浸
漬保持すると云う温度サイクルを加える操作を60日間
行い、60日間経過後の犠牲陽極皮材層の表面からの最
大腐食深さを測定し、その測定結果を表7〜表10に示
した。
The corrosion test 2 Cl -: 195ppm, SO 4 2-: 60ppm, F
An aqueous solution containing e 3+ : 30 ppm and Cu 2+ : 1 ppm
An aqueous solution adjusted to pH 11 with aOH was prepared as a corrosive liquid, and the clad materials 1 to 63 of the present invention and the comparative clad material 1 were prepared.
To 7 and the heat-treated test pieces of the conventional clad materials 1 and 2 were flowed at 1 m / s, assuming cooling water for an automotive heat exchanger.
ec. The temperature at which the immersion is carried out in a corrosive solution at 80 ° C. for 8 hours, followed by a temperature cycle of immersing and holding in a static corrosive solution at room temperature for 16 hours for 60 days. The maximum corrosion depth from the surface of the sacrificial anode skin material layer was measured, and the measurement results are shown in Tables 7 to 10.

【0030】[0030]

【表7】 [Table 7]

【0031】[0031]

【表8】 [Table 8]

【0032】[0032]

【表9】 [Table 9]

【0033】[0033]

【表10】 [Table 10]

【0034】表7〜表10に示される結果から、本発明
クラッド材1〜63は、従来クラッド材1〜2に比べ
て、表面からの最大腐食深さが極めて小さいところか
ら、耐食性に優れていることが分かる。また、構成成分
の内の少なくとも1種の含有量がこの発明の範囲から外
れている比較クラッド材1〜7は耐食性またはその他の
特性が劣ることも分かる。
From the results shown in Tables 7 to 10, the clad materials 1 to 63 of the present invention are excellent in corrosion resistance because the maximum corrosion depth from the surface is extremely small as compared with the conventional clad materials 1 and 2. You can see that there is. Also, it can be seen that the comparative clad materials 1 to 7 in which the content of at least one of the constituent components is out of the range of the present invention are inferior in corrosion resistance or other properties.

【0035】[0035]

【発明の効果】上述のように、この発明のクラッド材は
耐食性に優れているため、この発明のクラッド材を用い
て作製した熱交換器は、広範囲のpHの冷却水を使用し
ても貫通することなく長期間使用することができ、産業
上優れた効果をもたらすものである。
As described above, since the clad material of the present invention is excellent in corrosion resistance, the heat exchanger manufactured using the clad material of the present invention can be penetrated even if cooling water having a wide range of pH is used. It can be used for a long time without performing, and brings about an industrially superior effect.

───────────────────────────────────────────────────── フロントページの続き (72)発明者 黒田 周 静岡県裾野市平松85番地 三菱アルミニウ ム株式会社技術開発センター内 (72)発明者 当摩 建 静岡県裾野市平松85番地 三菱アルミニウ ム株式会社技術開発センター内 Fターム(参考) 4K060 AA02 AA10 BA10 BA19 BA34 BA35 BA43 DA10 EA04 EB05 FA10  ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor: Shu Kuroda 85, Hiramatsu, Susono-shi, Shizuoka Prefecture Inside the Technology Development Center (72) Inventor: Takeshi Toma 85, Hiramatsu, Susono-shi, Shizuoka Prefecture Mitsubishi Aluminum Co., Ltd. F term in the Technology Development Center (reference) 4K060 AA02 AA10 BA10 BA19 BA34 BA35 BA43 DA10 EA04 EB05 FA10

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】 重量%で、 Mn:0.8〜1.8%、 Fe:0.5〜1.5%、 Ce:0.01〜0.5%、 を含有し、残りがAlおよび不可避不純物からなる組成
のAl合金からなる芯材の一方の片面に、Al−Si系
あるいはAl−Si−Zn系ろう材をクラッドし、該芯
材の他方の片面に、 Zn:1〜10%、 Fe:0.3〜2.0%、 Ce:0.01〜0.5%、 を含有し、残りがAlおよび不可避不純物からなる組成
の犠牲陽極皮材をクラッドしてなることを特徴とする耐
食性に優れた熱交換器用アルミニウム合金クラッド材。
1. The composition contains, by weight%, Mn: 0.8 to 1.8%, Fe: 0.5 to 1.5%, Ce: 0.01 to 0.5%, with the balance being Al and An Al-Si-based or Al-Si-Zn-based brazing material is clad on one surface of a core material made of an Al alloy having a composition of unavoidable impurities, and Zn on the other surface of the core material: 1 to 10% , Fe: 0.3 to 2.0%, Ce: 0.01 to 0.5%, the remainder being clad with a sacrificial anode skin material having a composition consisting of Al and unavoidable impurities. Aluminum alloy clad material for heat exchangers with excellent corrosion resistance.
【請求項2】 重量%で、 Mn:0.8〜1.8%、 Fe:0.5〜1.5%、 Ce:0.01〜0.5%、 を含有し、さらに、 Si:0.1〜1.0%、 Cu:0.1〜0.7%、 の内の1種または2種を含有し、残りがAlおよび不可
避不純物からなる組成のAl合金からなる芯材の一方の
片面に、Al−Si系あるいはAl−Si−Zn系ろう
材をクラッドし、該芯材の他方の片面に、 Zn:1〜10%、 Fe:0.3〜2.0%、 Ce:0.01〜0.5%、 を含有し、残りがAlおよび不可避不純物からなる組成
の犠牲陽極皮材をクラッドしてなることを特徴とする耐
食性に優れた熱交換器用アルミニウム合金クラッド材。
2. The composition according to claim 1, further comprising: Mn: 0.8 to 1.8%, Fe: 0.5 to 1.5%, Ce: 0.01 to 0.5% by weight. 0.1 to 1.0%, Cu: 0.1 to 0.7%, one of core materials containing one or two of the following, and the rest being an Al alloy having a composition of Al and inevitable impurities. Is clad with an Al-Si-based or Al-Si-Zn-based brazing material on one side, and Zn: 1 to 10%, Fe: 0.3 to 2.0%, Ce: An aluminum alloy clad material for a heat exchanger having excellent corrosion resistance, characterized by comprising a sacrificial anode skin material having a composition of 0.01 to 0.5%, the balance being Al and inevitable impurities.
【請求項3】 重量%で、 Mn:0.8〜1.8%、 Fe:0.5〜1.5%、 Ce:0.01〜0.5%、 を含有し、さらに、 Ti:0.05〜0.2%、 Zr:0.05〜0.2%、 の内の1種または2種を含有し、残りがAlおよび不可
避不純物からなる組成のAl合金からなる芯材の一方の
片面に、Al−Si系あるいはAl−Si−Zn系ろう
材をクラッドし、該芯材の他方の片面に、 Zn:1〜10%、 Fe:0.3〜2.0%、 Ce:0.01〜0.5%、 を含有し、残りがAlおよび不可避不純物からなる組成
の犠牲陽極皮材をクラッドしてなることを特徴とする耐
食性に優れた熱交換器用アルミニウム合金クラッド材。
3. The composition according to claim 1, further comprising: Mn: 0.8 to 1.8%, Fe: 0.5 to 1.5%, Ce: 0.01 to 0.5% by weight. 0.05 to 0.2%, Zr: 0.05 to 0.2%, one of core materials containing one or two of the following, and the rest being an Al alloy having a composition of Al and inevitable impurities. Is clad with an Al-Si-based or Al-Si-Zn-based brazing material on one side, and Zn: 1 to 10%, Fe: 0.3 to 2.0%, Ce: An aluminum alloy clad material for a heat exchanger having excellent corrosion resistance, characterized by comprising a sacrificial anode skin material having a composition of 0.01 to 0.5%, the balance being Al and inevitable impurities.
【請求項4】 重量%で、 Mn:0.8〜1.8%、 Fe:0.5〜1.5%、 Ce:0.01〜0.5%、 を含有し、さらに、 Si:0.1〜1.0%、 Cu:0.1〜0.7%、 の内の1種または2種を含有し、さらに、 Ti:0.05〜0.2%、 Zr:0.05〜0.2%、 の内の1種または2種を含有し、残りがAlおよび不可
避不純物からなる組成のAl合金からなる芯材の一方の
片面に、Al−Si系あるいはAl−Si−Zn系ろう
材をクラッドし、該芯材の他方の片面に、 Zn:1〜10%、 Fe:0.3〜2.0%、 Ce:0.01〜0.5%、 を含有し、残りがAlおよび不可避不純物からなる組成
の犠牲陽極皮材をクラッドしてなることを特徴とする耐
食性に優れた熱交換器用アルミニウム合金クラッド材。
4. The composition according to claim 1, further comprising: Mn: 0.8 to 1.8%, Fe: 0.5 to 1.5%, Ce: 0.01 to 0.5% by weight. 0.1 to 1.0%, Cu: 0.1 to 0.7%, one or two of the following: Ti: 0.05 to 0.2%, Zr: 0.05 0.20.2%, and the other one of the two cores is composed of an Al alloy having a composition of Al and unavoidable impurities. A brazing material is clad, and Zn: 10%, Fe: 0.3% to 2.0%, Ce: 0.01% to 0.5% Aluminum clad material for heat exchangers having excellent corrosion resistance, characterized by cladding a sacrificial anode skin material having a composition consisting of Al and unavoidable impurities
JP10253526A 1998-09-08 1998-09-08 Aluminum alloy clad material for heat exchanger excellent in corrosion resistance Pending JP2000087166A (en)

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Publication Number Publication Date
JP2000087166A true JP2000087166A (en) 2000-03-28

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Country Link
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002256364A (en) * 2001-02-28 2002-09-11 Mitsubishi Alum Co Ltd Aluminum alloy for fin material of fin for heat exchanger and its production method
JP2009074137A (en) * 2007-09-21 2009-04-09 Kobe Steel Ltd Composite material of aluminum alloy, and heat exchanger
CN110373575A (en) * 2019-08-07 2019-10-25 安庆市泽烨新材料技术推广服务有限公司 A kind of cable aluminium alloy and preparation method thereof
CN110484783A (en) * 2019-09-06 2019-11-22 上海交通大学 A kind of aluminium-rare-earth alloy powder and its preparation method and application
CN116676512A (en) * 2023-06-02 2023-09-01 佛山市营鑫新材料有限公司 High-temperature-resistant Al-Mn-Fe-Ce die-casting aluminum alloy for cooking range as well as preparation method and application thereof

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002256364A (en) * 2001-02-28 2002-09-11 Mitsubishi Alum Co Ltd Aluminum alloy for fin material of fin for heat exchanger and its production method
JP4574036B2 (en) * 2001-02-28 2010-11-04 三菱アルミニウム株式会社 Aluminum alloy for fin material of heat exchanger and manufacturing method of fin material of heat exchanger
JP2009074137A (en) * 2007-09-21 2009-04-09 Kobe Steel Ltd Composite material of aluminum alloy, and heat exchanger
CN110373575A (en) * 2019-08-07 2019-10-25 安庆市泽烨新材料技术推广服务有限公司 A kind of cable aluminium alloy and preparation method thereof
CN110484783A (en) * 2019-09-06 2019-11-22 上海交通大学 A kind of aluminium-rare-earth alloy powder and its preparation method and application
CN116676512A (en) * 2023-06-02 2023-09-01 佛山市营鑫新材料有限公司 High-temperature-resistant Al-Mn-Fe-Ce die-casting aluminum alloy for cooking range as well as preparation method and application thereof

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