JPH0565582A - High strength and high corrosion resistant aluminum brazing sheet - Google Patents
High strength and high corrosion resistant aluminum brazing sheetInfo
- Publication number
- JPH0565582A JPH0565582A JP22305091A JP22305091A JPH0565582A JP H0565582 A JPH0565582 A JP H0565582A JP 22305091 A JP22305091 A JP 22305091A JP 22305091 A JP22305091 A JP 22305091A JP H0565582 A JPH0565582 A JP H0565582A
- Authority
- JP
- Japan
- Prior art keywords
- brazing
- core material
- brazing sheet
- strength
- diffusion
- 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
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Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、積層型アルミニウム
熱交換器のチューブエレメント等の構成材料として用い
られるアルミニウムブレージングシートに関し、特に高
強度、高耐食性アルミニウムブレージングシートに関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an aluminum brazing sheet used as a constituent material for a tube element or the like of a laminated aluminum heat exchanger, and more particularly to a high strength and high corrosion resistance aluminum brazing sheet.
【０００２】[0002]
【従来の技術】例えばカーエアコン用エバポレーター等
には積層型熱交換器、即ち扁平管部の両端または一端に
タンク部が形成されたチューブエレメントの複数枚がフ
ィンを介して積層された形式の熱交換器が一般に用いら
れていることが多い。2. Description of the Related Art For example, in an evaporator for a car air conditioner, a heat exchanger of a laminated type, that is, a plurality of tube elements having tank portions formed at both ends or one end of a flat tube portion are laminated through fins. Exchangers are often in common use.
【０００３】ところで、上記積層型熱交換器に用いられ
るチューブエレメントとして、芯材の片面または両面に
ろう材層が被覆されたアルミニウムブレージングシート
が一般的に用いられる。By the way, as a tube element used in the above laminated heat exchanger, an aluminum brazing sheet having a brazing material layer coated on one or both sides of a core material is generally used.
【０００４】従来、かかるアルミニウムブレージングシ
ートには、芯材にＡ３００３アルミニウム合金が、ろう
材層にＡ４００５合金等のＡｌ−Ｓｉ系合金が良く用い
られていた。Conventionally, in such an aluminum brazing sheet, an A3003 aluminum alloy was often used as a core material and an Al-Si alloy such as an A4005 alloy was often used as a brazing material layer.
【０００５】[0005]
【発明が解決しようとする課題】しかし、Ａ３００３合
金を芯材とするアルミニウムブレージングシートは強
度、耐食性の点で問題があり、昨今の熱交換器の軽量
化、薄肉化の要請に十分対処できなかった。However, the aluminum brazing sheet having the core material of A3003 alloy has a problem in strength and corrosion resistance, and cannot meet the recent demands for weight reduction and thickness reduction of heat exchangers. It was
【０００６】そこで、最近では高強度、高耐食性ブレー
ジングシートとして、強化元素であるＣｕを含有したＡ
ｌ−Ｍｎ−Ｃｕ系合金を芯材に用いることの試みがなさ
れている。確かに、Ａｌ−Ｍｎ−Ｃｕ系合金はそれ自体
としてはＯ材強度で概ね１２〜１３Ｋｇ／ｍｍを示して
高強度であり、かつ腐食電位もＡ３００３合金よりも貴
であって高耐食性を有する。Therefore, recently, as a brazing sheet having high strength and high corrosion resistance, A containing Cu which is a strengthening element was used.
Attempts have been made to use 1-Mn-Cu based alloys as core materials. Certainly, the Al-Mn-Cu alloy itself has a high strength of about 12 to 13 Kg / mm as the O material strength, and has a higher corrosion potential than the A3003 alloy and a high corrosion resistance.
【０００７】しかしながら、Ａｌ−Ｍｎ−Ｃｕ系合金を
芯材としてブレージングシートに製作した場合、ろう付
中に芯材のＣｕが皮材に拡散してしまい、本来芯材の有
する強度や耐食性がブレージングシートとしては得られ
ないという欠点があった。However, when an Al-Mn-Cu-based alloy is used as a core material to make a brazing sheet, Cu of the core material diffuses into the skin material during brazing, and the strength and corrosion resistance originally possessed by the core material are brazed. There was a drawback that it could not be obtained as a sheet.
【０００８】一方また、高強度アルミニウム合金である
Ａ３００５や６０００系のアルミニウム合金を芯材に用
いたブレージングシートも考えられているが、この場合
もＣｕと同様に芯材のＭｇがろう付中に皮材に拡散する
ため、強度低下を招くのみならずろう付性をも阻害する
という欠点があった。On the other hand, a brazing sheet using a high strength aluminum alloy A3005 or 6000 series aluminum alloy as a core material is also considered. In this case as well, Cu of the core material Mg is brazed during brazing similarly to Cu. Since it diffuses into the skin material, it has a drawback that not only the strength is lowered but also the brazing property is hindered.
【０００９】この発明は、かかる技術的背景に鑑みてな
されたものであって、Ｃｕ、Ｍｇを芯材に含有するもの
でありながら、ブレージングシートとしても高強度、高
耐食性を実現しうるアルミニウムブレージングシートの
提供を目的とする。The present invention has been made in view of the above technical background, and is an aluminum brazing capable of realizing high strength and high corrosion resistance as a brazing sheet even though it contains Cu and Mg in the core material. The purpose is to provide a seat.
【００１０】[0010]
【課題を解決するための手段】上記目的を達成するため
に、この発明は、図面の符号を参照して示すと、Ｍｎ：
０．１〜１．３ｗｔ％、Ｍｇ：０．１〜１．０ｗｔ％、
Ｃｕ：０．１〜０．６ｗｔ％、Ｓｉ：０．０５〜１．０
ｗｔ％、Ｆｅ：０．０５〜０．６ｗｔ％を含有し、残部
アルミニウム及び不可避不純物からなる芯材（１）の両
面に、Ｍｎ：０．１〜１．３ｗｔ％、Ｔｉ：０．０５〜
０．２ｗｔ％、Ｆｅ：０．０５〜０．６ｗｔ％、Ｓｉ：
０．０５〜１．０ｗｔ％を含有し、残部アルミニウム及
び不可避不純物からなる拡散防止層（２）（２）を介し
て、Ａｌ−Ｓｉ系ろう材層（３）（３）が被覆形成され
てなり、かつ前記拡散防止層（２）はその片面厚さが全
体厚さの３〜１０％に規定されていることを特徴とする
高強度、高耐食性アルミニウムブレージングシートを要
旨とするものである。In order to achieve the above object, the present invention will be described with reference to the drawings, in which Mn:
0.1-1.3 wt%, Mg: 0.1-1.0 wt%,
Cu: 0.1 to 0.6 wt%, Si: 0.05 to 1.0
wt%, Fe: 0.05-0.6 wt%, Mn: 0.1-1.3 wt%, Ti: 0.05-, on both surfaces of the core material (1) consisting of balance aluminum and unavoidable impurities.
0.2 wt%, Fe: 0.05 to 0.6 wt%, Si:
Al-Si based brazing filler metal layers (3) and (3) are formed so as to cover the diffusion preventing layers (2) and (2) containing 0.05 to 1.0 wt% and the balance being aluminum and unavoidable impurities. In addition, the diffusion preventing layer (2) has a high strength and a high corrosion resistance aluminum brazing sheet, characterized in that the thickness of one surface thereof is regulated to 3 to 10% of the total thickness.
【００１１】まず、本発明に係るアルミニウムブレーン
シートの芯材（１）における各元素の添加意義と組成範
囲の限定理由について説明すると、Ｍｎ（マンガン）は
芯材ひいてはブレージングシートの強度及び耐食性の向
上に寄与するものである。しかし、０．１ｗｔ％未満で
はその効果に乏しい。一方、１．３ｗｔ％を超えるとＡ
ｌーＭｎ系の粗大な化合物が晶出し、成形性を悪化させ
る。従ってＭｎは芯材（１）中に０．１〜１．３ｗｔ％
の範囲で含有されなければならない。Ｍｎの特に好まし
い含有範囲は０．５〜１．１ｗｔ％である。First, the significance of addition of each element and the reason for limiting the composition range in the core material (1) of the aluminum brain sheet according to the present invention will be explained. Mn (manganese) improves the strength and corrosion resistance of the core material and thus the brazing sheet. Contribute to. However, if less than 0.1 wt%, the effect is poor. On the other hand, if 1.3 wt% is exceeded, A
Coarse 1-Mn-based compounds crystallize, deteriorating moldability. Therefore, Mn is 0.1 to 1.3 wt% in the core material (1).
Must be contained within the range. A particularly preferable content range of Mn is 0.5 to 1.1 wt%.
【００１２】Ｍｇ（マグネシウム）は芯材ひいてはブレ
ージングシートの強度向上に寄与する元素であるが、
０．１ｗｔ％未満ではその効果に乏しい。一方１．０ｗ
ｔ％を超えると融点が低下するという欠点を派生する。
従って芯材中にはＭｇは０．１〜１．０ｗｔ％の範囲で
含有されなければならない。Ｍｇの特に好ましい含有量
は０．３〜０．７ｗｔ％である。Although Mg (magnesium) is an element that contributes to the improvement of the strength of the core material and thus of the brazing sheet,
If it is less than 0.1 wt%, the effect is poor. On the other hand, 1.0w
If it exceeds t%, the melting point is lowered, which is a drawback.
Therefore, Mg must be contained in the core material in the range of 0.1 to 1.0 wt%. A particularly preferable content of Mg is 0.3 to 0.7 wt%.
【００１３】Ｃｕ（銅）は芯材ひいてはブレージングシ
ートの強度の向上と、電極電位を貴にすることによる耐
食性の向上に有効な元素である。しかし、０．１ｗｔ％
未満ではその効果に乏しい。一方０．６ｗｔ％を超える
と芯材の融点低下を招来する。従って、Ｃｕは芯材中に
０．１〜０．６ｗｔ％の範囲で含有されなければならな
い。Ｃｕの特に好ましい含有範囲は０．３〜０．５ｗｔ
％である。Cu (copper) is an element effective for improving the strength of the core material and thus of the brazing sheet and for improving the corrosion resistance by making the electrode potential noble. However, 0.1 wt%
If it is less than, its effect is poor. On the other hand, if it exceeds 0.6 wt%, the melting point of the core material is lowered. Therefore, Cu must be contained in the core material in the range of 0.1 to 0.6 wt%. A particularly preferable content range of Cu is 0.3 to 0.5 wt.
%.
【００１４】Ｓｉ（珪素）は芯材ひいてはブレージング
シートの強度向上に有効であるが、０．０５ｗｔ％未満
ではその効果に乏しく、１．０ｗｔ％を超えると芯材の
融点低下を派生する。従ってＳｉは０．０５〜１．０ｗ
ｔ％の範囲で含有されなければならず、特に好ましくは
０．２〜０．６ｗｔ％含有されるのが良い。Si (silicon) is effective for improving the strength of the core material and thus of the brazing sheet, but if it is less than 0.05 wt%, its effect is poor, and if it exceeds 1.0 wt%, the melting point of the core material is lowered. Therefore, Si is 0.05-1.0w
It should be contained in the range of t%, and particularly preferably 0.2 to 0.6 wt% is contained.
【００１５】Ｆｅ（鉄）は結晶粒径の制御に寄与する
が、０．０５ｗｔ％未満ではその効果に乏しく、逆に
０．６ｗｔ％を超えると結晶粒が微細化され、ろう付時
の侵食を招き易くなる。従ってＦｅは０．０５〜０．６
ｗｔ％の範囲で含有されなければならなず、特に好まし
くは０．１５〜０．５ｗｔ％とするのが良い。Fe (iron) contributes to the control of the crystal grain size, but if it is less than 0.05 wt%, its effect is poor, and conversely if it exceeds 0.6 wt%, the crystal grains become fine and corrosion during brazing occurs. It is easy to invite. Therefore, Fe is 0.05 to 0.6
It must be contained in the range of wt%, and particularly preferably 0.15 to 0.5 wt%.
【００１６】上記芯材（１）の両面にクラッド等により
被覆される拡散防止層（２）は、芯材（１）中のＣｕ及
びＭｇのろう材層（３）への拡散を防止して、芯材の強
度、高耐食性を維持しひいてはブレージングシートに強
度、高耐食性を付与するとともに、Ｍｇ等の拡散による
ろう付性の低下を防止して良好なろう付性を発揮させる
役割を果たす。かかる拡散層（２）の目的に鑑み、その
組成の組合せと限定理由について説明すると次のとおり
である。The diffusion prevention layer (2) coated on both sides of the core material (1) with a clad or the like prevents diffusion of Cu and Mg in the core material (1) into the brazing material layer (3). In addition, the strength and high corrosion resistance of the core material are maintained, and the strength and high corrosion resistance are imparted to the brazing sheet, and the brazing sheet is prevented from being deteriorated due to diffusion of Mg or the like to exhibit good brazing property. In view of the purpose of the diffusion layer (2), the combination of compositions and the reason for limitation will be described as follows.
【００１７】即ち、Ｍｎは拡散防止層（２）自体の強
度、耐食性を向上させひいてはブレージングシートの強
度、耐食性の向上に役立つものである。しかし、０．１
ｗｔ％未満では上記効果に乏しく、１．３ｗｔ％を超え
るとＡｌ−Ｍｎ系の粗大な化合物が晶出し、成形性が悪
化する。従ってＭｎは拡散防止層（２）中に０．１〜
１．３ｗｔ％の範囲で含有されなければならない。Ｍｎ
の特に好ましい含有範囲は０．３〜１．１ｗｔ％であ
る。That is, Mn serves to improve the strength and corrosion resistance of the diffusion prevention layer (2) itself, and thus to improve the strength and corrosion resistance of the brazing sheet. But 0.1
If it is less than wt%, the above effect is poor, and if it exceeds 1.3 wt%, a coarse Al—Mn-based compound crystallizes, and the formability deteriorates. Therefore, Mn is contained in the diffusion prevention layer (2) in an amount of 0.1 to 0.1
It must be contained in the range of 1.3 wt%. Mn
The particularly preferable content range of is 0.3 to 1.1 wt%.
【００１８】Ｔｉ（チタン）は芯材（１）中のＭｇのろ
う材層（３）への拡散を防止し、ひいてはブレージング
シートの強度、耐食性、ろう付性の劣化を抑制する効果
がある。これは、ＴｉはＭｇと化合物を形成せず、従っ
て親和性が悪くおそらくは両者間に斥力が働いているか
らと推測される。しかしＴｉが０．０５ｗｔ％未満では
Ｍｇの拡散防止効果に乏しい。一方０．２ｗｔ％を超え
て含有されても上記効果の格別な増大作用がなく、却っ
て経済的な無駄を招く。従ってＴｉは０．０５〜０２ｗ
ｔ％の範囲で含有されなければならず、特に好ましい含
有範囲は０．０８〜０．１５ｗｔ％である。Ti (titanium) has the effect of preventing the diffusion of Mg in the core material (1) into the brazing material layer (3), and by suppressing the deterioration of the strength, corrosion resistance and brazing property of the brazing sheet. It is presumed that this is because Ti does not form a compound with Mg and therefore has a low affinity and possibly a repulsive force acts between the two. However, if Ti is less than 0.05 wt%, the effect of preventing Mg diffusion is poor. On the other hand, even if it is contained in an amount of more than 0.2 wt%, there is no particular effect of increasing the above-mentioned effect, which rather causes economic waste. Therefore, Ti is 0.05-02w
It should be contained in the range of t%, and a particularly preferable content range is 0.08 to 0.15 wt%.
【００１９】Ｆｅは芯材（１）中のＣｕのろう材層
（３）への拡散を防止する元素であるが、０．０５ｗｔ
％未満ではその効果に乏しい。一方０．６ｗｔ％を超え
て含有されてもＣｕ拡散抑制効果が飽和し、該効果の格
別な増大を期待しえない。従って拡散防止層（２）中の
Ｆｅは０．０５〜０．６ｗｔ％の範囲で含有されなけれ
ばならない。Ｆｅの特に好ましい含有範囲は０．１５〜
０．５ｗｔ％である。Fe is an element for preventing the diffusion of Cu in the core material (1) into the brazing material layer (3), and is 0.05 wt.
If it is less than%, the effect is poor. On the other hand, even if the content of Cu exceeds 0.6 wt%, the Cu diffusion suppressing effect is saturated, and no particular increase in the effect can be expected. Therefore, Fe in the diffusion prevention layer (2) must be contained in the range of 0.05 to 0.6 wt%. A particularly preferred content range of Fe is 0.15
It is 0.5 wt%.
【００２０】Ｓｉは強度向上に有効であるが０．０５ｗ
ｔ％未満ではその効果が少なく、１．０ｗｔ％を超える
と拡散防止層（２）の融点低下を招く。従って拡散防止
層（２）中のＳｉは０．０５〜１．０ｗｔ％の範囲で含
有されなければならない。特に好ましくは０．２〜０．
６ｗｔ％である。Si is effective in improving the strength, but 0.05 w
If it is less than t%, the effect is small, and if it exceeds 1.0 wt%, the melting point of the diffusion preventing layer (2) is lowered. Therefore, Si in the diffusion prevention layer (2) must be contained in the range of 0.05 to 1.0 wt%. Particularly preferably 0.2 to 0.
It is 6 wt%.
【００２１】かつまた、上記の拡散防止層（２）の肉厚
は片面厚さｔ1 がブレージングシートの全体厚さｔの３
〜１０％の範囲に規定される必要がある。片面厚さｔ1
が全体厚さｔの３％未満では、拡散防止層（２）の上記
組成にも拘らず十分な拡散防止効果を得ることができな
い。一方１０％を超える厚さでは、ブレージングシート
全体に対する拡散防止層（２）の割合が大きくなりす
ぎ、ブレージングシート全体の強度低下を派生する。好
ましくは拡散防止層（２）の片面厚さｔ1 はこれをブレ
ージングシートの厚さｔに対し３〜６％に設定するのが
良い。Further, the thickness of the diffusion preventing layer (2) is 3 where the one-sided thickness t 1 is the total thickness t of the brazing sheet.
It needs to be specified in the range of 10%. One side thickness t 1
Is less than 3% of the total thickness t, a sufficient diffusion preventing effect cannot be obtained despite the above composition of the diffusion preventing layer (2). On the other hand, if the thickness exceeds 10%, the ratio of the diffusion preventing layer (2) to the entire brazing sheet becomes too large, resulting in a decrease in strength of the entire brazing sheet. Preferably, the one-sided thickness t 1 of the diffusion prevention layer (2) is set to 3 to 6% with respect to the thickness t of the brazing sheet.
【００２２】拡散防止層（２）（２）の外側に被覆され
るろう材層の組成は特に限定されることはなく、従来よ
り用いられているＡｌ−Ｓｉ系あるいはＡｌ−Ｓｉ−Ｍ
ｇ系合金を適宜用いれば良い。The composition of the brazing material layer coated on the outer side of the diffusion prevention layers (2) and (2) is not particularly limited, and it is a conventionally used Al-Si system or Al-Si-M.
A g-based alloy may be used as appropriate.
【００２３】この発明に係るアルミニウムブレージング
シートは、常法に従い、芯材（１）用、拡散防止層
（２）（２）用、ろう材層（３）（３）用の各アルミニ
ウム合金材を圧延でクラッドすることにより製作すれば
良い。The aluminum brazing sheet according to the present invention comprises the aluminum alloy material for the core material (1), the diffusion preventing layers (2) and (2), and the brazing material layers (3) and (3) according to a conventional method. It may be manufactured by clad by rolling.
【００２４】[0024]
【実施例】次に、この発明の実施例を示す。EXAMPLES Examples of the present invention will be described below.
【００２５】下記表１及び表２に示す組成の芯材と拡散
防止層用の板材を用意した。A core material having the composition shown in Tables 1 and 2 below and a plate material for the diffusion prevention layer were prepared.
【００２６】[0026]
【表１】 [Table 1]
【００２７】[0027]
【表２】 [Table 2]
【００２８】そして、芯材と拡散防止層とを表３のよう
に組み合わせ、芯材の両面に拡散防止層を介してＡ４０
０５合金からなるろう材層がクラッドされた５層構造、
厚さ０．５mmのブレージングシートを圧延によって製作
した。Then, the core material and the diffusion preventing layer are combined as shown in Table 3, and A40 is provided on both sides of the core material with the diffusion preventing layer interposed therebetween.
5-layer structure in which a brazing material layer made of 05 alloy is clad,
A brazing sheet having a thickness of 0.5 mm was manufactured by rolling.
【００２９】なお、拡散防止層の厚さは、その片面厚さ
をブレージングシート全体の厚さに対して表３に示す割
合に設定した。また、ろう材層の厚さはいずれも片面
０．０６mmとした。The thickness of the diffusion prevention layer was set such that the thickness on one side thereof was in the ratio shown in Table 3 with respect to the thickness of the entire brazing sheet. The thickness of the brazing material layer was 0.06 mm on each side.
【００３０】次に、上記により製作した各アルミニウム
ブレージングシートを供試片とし、該供試片とＡ１１０
０合金からなる厚さ２mmの板片とを供試片を上側に垂直
状態に配した逆Ｔ継手に組み立てた。そして、該継手
を、フッ化物系フラックスを用いて６０５℃×１０分ろ
う付したときの供試片の耐力を測定するとともにろう付
性、耐食性を調べた。ろう付性は、供試片と板片との接
合部のろう付状態を目視観察することにより評価した。
また、耐食性はＪＩＳ−Ｈ−８６８１に基くキャス試験
により評価した。それらの結果を表３に併せて示す。Next, each aluminum brazing sheet produced as described above is used as a test piece, and the test piece and A110 are used.
A 2 mm-thick plate piece made of 0 alloy was assembled into an inverted T-joint in which the test piece was vertically arranged on the upper side. Then, the joint was brazed with a fluoride-based flux at 605 ° C. for 10 minutes, and the yield strength of the test piece was measured and the brazability and corrosion resistance were examined. The brazing property was evaluated by visually observing the brazing state of the joint between the test piece and the plate piece.
Further, the corrosion resistance was evaluated by a Cass test based on JIS-H-8681. The results are also shown in Table 3.
【００３１】[0031]
【表３】 [Table 3]
【００３２】上記表３の結果からわかるように、本発明
品（Ｎｏ１〜４）はろう付後の強度も十分で、ろう付
性、耐食性にも優れていることを確認し得た。As can be seen from the results of Table 3 above, it was confirmed that the products of the present invention (Nos. 1 to 4) had sufficient strength after brazing and were excellent in brazing property and corrosion resistance.
【００３３】これに対し、芯材にＡ３００３合金を用い
ると共に、拡散防止層を設けない従来品（Ｎｏ５）は強
度、耐食性に劣るものであった。On the other hand, the conventional product (No. 5), which uses the A3003 alloy as the core material and does not have the diffusion prevention layer, is inferior in strength and corrosion resistance.
【００３４】また、拡散防止層にＴｉを含まない合金を
用いた比較品（Ｎｏ６）はろう付性、耐食性に劣ってい
た。これは、拡散防止層にＴｉを含まないため、芯材中
のＭｇがろう材層に拡散したからと推測される。The comparative product (No. 6) using an alloy containing no Ti for the diffusion prevention layer was inferior in brazing property and corrosion resistance. This is presumably because Mg in the core material diffused into the brazing material layer because the diffusion prevention layer did not contain Ti.
【００３５】また、拡散防止層の厚さが薄すぎる比較品
（Ｎｏ７）は、Ｃｕ、Ｍｇの拡散防止効果に劣るためろ
う付性、耐食性いずれも不十分であった。Further, the comparative product (No. 7) in which the thickness of the diffusion preventing layer was too thin was inferior in the diffusion preventing effect of Cu and Mg, so that both the brazing property and the corrosion resistance were insufficient.
【００３６】[0036]
【作用】拡散防止層（２）により、芯材（１）中のＣ
ｕ、Ｍｇのろう材層（３）への拡散が防止される。[Function] Due to the diffusion preventing layer (2), C in the core material (1) is
Diffusion of u and Mg into the brazing material layer (3) is prevented.
【００３７】[0037]
【発明の効果】この発明は、上述の次第で、Ｃｕ、Ｍｇ
を含む芯材とその両面ろう材層との間に、芯材中のＣ
ｕ、Ｍｇのろう材層への拡散を防止する一定組成、一定
厚さの拡散防止層が介在されているから、芯材中のＣ
ｕ、Ｍｇの拡散を効果的に抑制することができ、ひいて
はろう付性やろう付後の強度、耐食性の劣化を防止し得
て、ろう付性、強度、耐食性ともに優れたブレージング
シートとなしうる。According to the present invention, depending on the above, Cu, Mg
C in the core material between the core material containing
Since a diffusion preventing layer having a constant composition and a constant thickness for preventing the diffusion of u and Mg into the brazing material layer is interposed, C in the core material is
It is possible to effectively suppress the diffusion of u and Mg, prevent the deterioration of brazing property, strength after brazing, and corrosion resistance, and form a brazing sheet having excellent brazing property, strength, and corrosion resistance. ..
【図１】この発明に係るブレージングシートの断面拡大
図である。FIG. 1 is an enlarged cross-sectional view of a brazing sheet according to the present invention.
１…芯材 ２…拡散防止層 ３…ろう材層 1 ... Core material 2 ... Diffusion prevention layer 3 ... Brazing material layer
Claims (1)
０．１〜１．０ｗｔ％、Ｃｕ：０．１〜０．６ｗｔ％、
Ｓｉ：０．０５〜１．０ｗｔ％、Ｆｅ：０．０５〜０．
６ｗｔ％を含有し、残部アルミニウム及び不可避不純物
からなる芯材（１）の両面に、 Ｍｎ：０．１〜１．３ｗｔ％、Ｔｉ：０．０５〜０．２
ｗｔ％、Ｆｅ：０．０５〜０．６ｗｔ％、Ｓｉ：０．０
５〜１．０ｗｔ％を含有し、残部アルミニウム及び不可
避不純物からなる拡散防止層（２）（２）を介して、Ａ
ｌ−Ｓｉ系ろう材層（３）（３）が被覆形成されてな
り、 かつ前記拡散防止層（２）はその片面厚さが全体厚さの
３〜１０％に規定されていることを特徴とする高強度、
高耐食性アルミニウムブレージングシート。1. Mn: 0.1 to 1.3 wt%, Mg:
0.1-1.0 wt%, Cu: 0.1-0.6 wt%,
Si: 0.05-1.0 wt%, Fe: 0.05-0.
Mn: 0.1 to 1.3 wt%, Ti: 0.05 to 0.2 on both surfaces of the core material (1) containing 6 wt% and the balance aluminum and unavoidable impurities.
wt%, Fe: 0.05 to 0.6 wt%, Si: 0.0
5 to 1.0 wt% is included, and the balance A and the unavoidable impurities are used as diffusion barrier layers (2) and (2).
The 1-Si brazing filler metal layers (3) and (3) are formed by coating, and the diffusion preventing layer (2) has a one-sided thickness of 3 to 10% of the total thickness. High strength,
High corrosion resistance aluminum brazing sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22305091A JPH0565582A (en) | 1991-09-03 | 1991-09-03 | High strength and high corrosion resistant aluminum brazing sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22305091A JPH0565582A (en) | 1991-09-03 | 1991-09-03 | High strength and high corrosion resistant aluminum brazing sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0565582A true JPH0565582A (en) | 1993-03-19 |
Family
ID=16792054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22305091A Pending JPH0565582A (en) | 1991-09-03 | 1991-09-03 | High strength and high corrosion resistant aluminum brazing sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0565582A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997018946A1 (en) * | 1995-11-21 | 1997-05-29 | Alcan International Limited | Heat exchanger |
| GB2321255A (en) * | 1995-11-21 | 1998-07-22 | Alcan Int Ltd | Heat exchanger |
| WO2000045987A1 (en) * | 1999-02-02 | 2000-08-10 | Sumitomo Special Metals Co., Ltd. | Brazing composite material and brazed structure |
| JP2001087888A (en) * | 1999-09-22 | 2001-04-03 | Toyo Radiator Co Ltd | Brazing sheet for heat-resistant heat exchanger |
| WO2003028946A1 (en) * | 2001-09-28 | 2003-04-10 | Furukawa-Sky Aluminum Corp. | Method for brazing of aluminum or aluminum alloy material and aluminum alloy brazing sheet |
| EP1323839A1 (en) * | 1999-11-17 | 2003-07-02 | Corus Aluminium Walzprodukte GmbH | Aluminium brazing alloy |
| US6651333B2 (en) | 1996-08-29 | 2003-11-25 | Valeo Thermique Moteur | Aluminum based collared header plate for a heat exchanger, especially for a motor vehicle |
| JP2004025297A (en) * | 2001-09-28 | 2004-01-29 | Furukawa Electric Co Ltd:The | Brazing method for aluminum or aluminum alloy material and brazing sheet made of aluminum alloy |
| JP2006022405A (en) * | 2004-07-05 | 2006-01-26 | Visteon Global Technologies Inc | Composite material made of high-strength aluminum alloy |
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| JP2011208173A (en) * | 2010-03-29 | 2011-10-20 | Kobe Steel Ltd | Brazing sheet of aluminum alloy |
| JP2012087342A (en) * | 2010-10-18 | 2012-05-10 | Showa Denko Kk | Aluminum clad material for heat exchanger |
| JP2012092374A (en) * | 2010-10-25 | 2012-05-17 | Showa Denko Kk | Aluminum clad material for heat exchanger |
| JP2018535317A (en) * | 2015-10-15 | 2018-11-29 | ノベリス・インコーポレイテッドＮｏｖｅｌｉｓ Ｉｎｃ． | Highly formed multi-layer aluminum alloy package |
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-
1991
- 1991-09-03 JP JP22305091A patent/JPH0565582A/en active Pending
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|---|---|---|---|---|
| AU718229C (en) * | 1995-11-21 | 2001-10-11 | Novelis Inc. | Heat exchanger |
| GB2321255B (en) * | 1995-11-21 | 2000-03-08 | Alcan Int Ltd | Heat exchanger |
| AU718229B2 (en) * | 1995-11-21 | 2000-04-13 | Novelis Inc. | Heat exchanger |
| GB2321255A (en) * | 1995-11-21 | 1998-07-22 | Alcan Int Ltd | Heat exchanger |
| KR100553065B1 (en) * | 1995-11-21 | 2006-06-16 | 알칸 인터내셔널 리미티드 | heat transmitter |
| WO1997018946A1 (en) * | 1995-11-21 | 1997-05-29 | Alcan International Limited | Heat exchanger |
| US6651333B2 (en) | 1996-08-29 | 2003-11-25 | Valeo Thermique Moteur | Aluminum based collared header plate for a heat exchanger, especially for a motor vehicle |
| WO2000045987A1 (en) * | 1999-02-02 | 2000-08-10 | Sumitomo Special Metals Co., Ltd. | Brazing composite material and brazed structure |
| JP2001087888A (en) * | 1999-09-22 | 2001-04-03 | Toyo Radiator Co Ltd | Brazing sheet for heat-resistant heat exchanger |
| EP1323839A1 (en) * | 1999-11-17 | 2003-07-02 | Corus Aluminium Walzprodukte GmbH | Aluminium brazing alloy |
| WO2003028946A1 (en) * | 2001-09-28 | 2003-04-10 | Furukawa-Sky Aluminum Corp. | Method for brazing of aluminum or aluminum alloy material and aluminum alloy brazing sheet |
| US6896977B2 (en) | 2001-09-28 | 2005-05-24 | Furukawa-Sky Aluminum Corp | Method of brazing aluminum or aluminum alloy materials and aluminum alloy brazing sheet |
| JP2004025297A (en) * | 2001-09-28 | 2004-01-29 | Furukawa Electric Co Ltd:The | Brazing method for aluminum or aluminum alloy material and brazing sheet made of aluminum alloy |
| KR100951504B1 (en) * | 2001-09-28 | 2010-04-07 | 후루카와 스카이 가부시키가이샤 | Method for brazing aluminum or aluminum alloy material and aluminum alloy brazing sheet |
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| JP2011208173A (en) * | 2010-03-29 | 2011-10-20 | Kobe Steel Ltd | Brazing sheet of aluminum alloy |
| JP2012087342A (en) * | 2010-10-18 | 2012-05-10 | Showa Denko Kk | Aluminum clad material for heat exchanger |
| JP2012092374A (en) * | 2010-10-25 | 2012-05-17 | Showa Denko Kk | Aluminum clad material for heat exchanger |
| JP2018535317A (en) * | 2015-10-15 | 2018-11-29 | ノベリス・インコーポレイテッドＮｏｖｅｌｉｓ Ｉｎｃ． | Highly formed multi-layer aluminum alloy package |
| US10689041B2 (en) | 2015-10-15 | 2020-06-23 | Novelis Inc. | High-forming multi-layer aluminum alloy package |
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