JPH06256881A - Aluminum alloy sheet excellent in adhesive property and its production - Google Patents
Aluminum alloy sheet excellent in adhesive property and its productionInfo
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- JPH06256881A JPH06256881A JP4552393A JP4552393A JPH06256881A JP H06256881 A JPH06256881 A JP H06256881A JP 4552393 A JP4552393 A JP 4552393A JP 4552393 A JP4552393 A JP 4552393A JP H06256881 A JPH06256881 A JP H06256881A
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- aluminum alloy
- alloy plate
- adhesive
- weight
- concentrated
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Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、自動車用や家電用とし
て使用される接着性に優れるアルミニウム合金板および
その製造方法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 plate having excellent adhesiveness, which is used for automobiles and home appliances, and a method for producing the same.
【０００２】[0002]
【従来の技術及びその課題】近年、自動車車体の軽量化
のためにアルミニウム合金板の使用量が増加してきてい
る。アルミニウム合金板は鋼板と比較して溶接性に劣る
材料であるため、アルミニウム合金板を使用して構造物
を製造する際には接着接合が必要となる場合が多い。ま
た、鋼板との共存使用においては、スポット溶接などの
溶接の手法で接合を行うと電食が起こり溶接部の強度が
著しく低下する。このようなアルミニウム合金板と鋼板
の様な電食を引き起こす可能性のある物質間の接合に
は、絶縁性物質である有機高分子化合物からなる接着剤
が耐食性の観点から優れている。しかしながら、従来か
ら接着接合は強度や耐久性、さらには信頼性の点で溶接
に劣ると考えられていたため、接着剤そのもの改良と同
時に、各種表面処理によって非着体表面を接着に適した
状態に改良する方法が検討されてきた。以下にその例と
問題点を述べる。2. Description of the Related Art In recent years, the amount of aluminum alloy sheets used has been increasing in order to reduce the weight of automobile bodies. Since an aluminum alloy plate is a material having poorer weldability than a steel plate, adhesive bonding is often necessary when manufacturing a structure using the aluminum alloy plate. Further, in coexistence use with a steel sheet, when joining is performed by a welding method such as spot welding, electrolytic corrosion occurs and the strength of the welded portion is significantly reduced. An adhesive made of an organic polymer compound, which is an insulating material, is excellent in terms of corrosion resistance for bonding such a material that may cause electrolytic corrosion such as an aluminum alloy plate and a steel plate. However, since adhesive bonding has traditionally been considered to be inferior to welding in terms of strength, durability, and reliability, the adhesive itself has been improved, and at the same time various surface treatments have made the non-bonded surface suitable for bonding. Improvement methods have been investigated. The examples and problems are described below.
【０００３】現在、アルミニウム合金板の接着性を改善
する前処理法としては、学術雑誌「軽金属」４１巻第１
０号６５０項〜６５９項に記載されているように、主に
次の２種類の方法が航空機用アルミニウム合金板の前処
理法として用いられている。 （イ）硫酸−クロム酸エッチング法 濃硫酸を１０重量部、重クロム酸ソーダを１重量部、脱
イオン水を３０重量部含む約６５℃の溶液に５〜１０分
間浸漬するものである。本法によれば、アルミニウム合
金板の表面にはアルミニウムと酸素の濃度が著しく増加
して厚いアルミニウム酸化物層が形成される。アルミニ
ウム酸化物層には５角形の細い穴を持つ酸化アルミニウ
ム層上に直径約５０Åの酸化アルミウィスカーが成長し
ている。このアルミニウム酸化物層によるアンカー効果
で接着強度が高くなると言われている。At present, as a pretreatment method for improving the adhesiveness of aluminum alloy sheets, academic journal "Light Metals", Vol. 41, No. 1
As described in Nos. 0 to 650 to 659, the following two types of methods are mainly used as a pretreatment method for aircraft aluminum alloy sheets. (B) Sulfuric acid-chromic acid etching method This is immersed in a solution containing concentrated sulfuric acid at 10 parts by weight, sodium dichromate at 1 part by weight, and deionized water at 30 parts by weight at about 65 ° C. for 5 to 10 minutes. According to this method, a thick aluminum oxide layer is formed on the surface of the aluminum alloy plate due to a marked increase in the concentrations of aluminum and oxygen. In the aluminum oxide layer, aluminum oxide whiskers having a diameter of about 50Å are grown on the aluminum oxide layer having pentagonal narrow holes. It is said that the anchoring effect of this aluminum oxide layer increases the adhesive strength.
【０００４】（ロ）陽極酸化法 硫酸−クロム酸エッチングは耐水性に劣るため、耐水性
の要求が高い部分では陽極酸化が行われている。クロム
酸陽極酸化法とリン酸陽極酸化法が主に用いられてい
る。これらの方法によるとポーラスなアルミニウム酸化
層が上記（イ）の硫酸−クロム酸エッチングより厚く成
長し、接着強度が向上すると同時に耐久性も向上する。(B) Anodic oxidation method Since sulfuric acid-chromic acid etching is inferior in water resistance, anodic oxidation is carried out in portions where water resistance is highly required. Chromic acid anodizing method and phosphoric acid anodizing method are mainly used. According to these methods, the porous aluminum oxide layer grows thicker than the sulfuric acid-chromic acid etching of (a) above, and the adhesive strength is improved and at the same time the durability is improved.
【０００５】上記（イ）と（ロ）の前処理法は、確かに
接着性（接着強度と耐久性）を向上させることはできる
が、次の欠点を持っている。まず、前処理の工程が複雑
であるという欠点がある。工程の数は、硫酸−クロム酸
エッチングでは６工程、クロム酸陽極酸化では１０工
程、リン酸陽極酸化では８工程必要であり、複雑な工程
を踏まなければならない。そのためコストが高く、処理
時間が長いという問題がある。Although the above-mentioned pretreatment methods (a) and (b) can certainly improve the adhesiveness (adhesive strength and durability), they have the following drawbacks. First, there is a drawback that the pretreatment process is complicated. The number of steps required is 6 for sulfuric acid-chromic acid etching, 10 for chromic acid anodization, and 8 for phosphoric acid anodization, and complicated steps must be taken. Therefore, there is a problem that the cost is high and the processing time is long.
【０００６】次に、クロム酸を使用する前処理法では有
害物質であるクロムを使用するために使用環境や廃液処
理に十分な注意を払わなければならないという欠点があ
る。一方、特開平４−１６０１８１号公報に見られるよ
うにアルミニウム合金板の表面にめっきを施して化成処
理性を改善する事によって、接着性を改善させる方法も
提案されている。しかし、この方法も上記（イ）や
（ロ）と同じく、工程が複雑であるという欠点がある。Next, the pretreatment method using chromic acid has a drawback in that due to the use of chromium, which is a harmful substance, sufficient attention must be paid to the use environment and waste liquid treatment. On the other hand, as disclosed in Japanese Patent Laid-Open No. 4-160181, a method of improving adhesion by plating the surface of an aluminum alloy plate to improve chemical conversion treatability has been proposed. However, this method also has a drawback in that the process is complicated, as in the above (a) and (b).
【０００７】[0007]
【発明が解決しようとする課題】本発明は、複雑な工程
を踏まず、なおかつ安全な前処理により製造される接着
性に優れるアルミニウム合金板およびその製造方法を提
供するものである。DISCLOSURE OF THE INVENTION The present invention provides an aluminum alloy plate excellent in adhesiveness which is manufactured by safe pretreatment without taking complicated steps, and a manufacturing method thereof.
【０００８】[0008]
【課題を解決するための手段】本発明の要旨は、Ｍｇ：
０．１〜１０重量％とＣｕ：０．０１〜１０重量％を必
須成分として含有し、残部がＡｌ及び不可避的不純物か
らなるアルミニウム合金板あるいは、さらに単独添加量
が５重量％以下のＳｉ，Ｆｅ，Ｍｎ，Ｃｒ，Ｚｎ，Ｔ
ｉ，Ｚｒ，Ａｇの内から１種以上を含有するアルミニウ
ム合金板において、酸洗によって表面にＭｇの濃化層を
除去し、同時にＣｕを０．１〜１５重量％まで濃化させ
ることにより接着性能（接着強度と接着耐久性）を高め
たアルミニウム合金板及びその製造方法にある。The gist of the present invention is Mg:
An aluminum alloy plate containing 0.1 to 10% by weight and Cu: 0.01 to 10% by weight as essential components, the balance being Al and unavoidable impurities, or further a single addition amount of 5% by weight or less of Si, Fe, Mn, Cr, Zn, T
In an aluminum alloy plate containing at least one of i, Zr, and Ag, pickling removes the concentrated layer of Mg on the surface, and at the same time, concentrates Cu to 0.1 to 15 wt% for adhesion. An aluminum alloy plate having improved performance (bonding strength and bonding durability) and a method for manufacturing the same.
【０００９】アルミニウム合金板の接着性を向上させる
方法としては、以下の方法が考えられる。 （Ａ）接着界面近傍に力学的に弱い層が存在し、その層
を起点にして接着破壊が起こるアルミニウム合金板にお
いて、その力学的に弱い層を接着剤を塗布する前に除去
する。 （Ｂ）アルミニウム合金表面に接着に適した表面形態を
付与する。具体的には接着剤の濡れ性の改善、接着剤と
アルミニウム合金板の親和性の改善、アンカー効果の付
与等である。As a method for improving the adhesiveness of the aluminum alloy plate, the following method can be considered. (A) In an aluminum alloy plate in which a mechanically weak layer is present in the vicinity of the adhesive interface, and adhesive failure occurs from that layer as a starting point, the mechanically weak layer is removed before applying the adhesive. (B) The aluminum alloy surface is provided with a surface morphology suitable for adhesion. Specifically, it is to improve the wettability of the adhesive, improve the affinity between the adhesive and the aluminum alloy plate, and impart an anchor effect.
【００１０】本発明者等はＭｇとＣｕを含有するアルミ
ニウム合金の表面状態を詳細に解析した。その結果、ア
ルミニウム合金板の表面にはＭｇがＭｇＯとなって濃化
しており、最表面のＭｇ濃度はバルクの濃度より高い傾
向にあった。これは焼鈍の段階で酸化され易いＭｇが内
部から表面へ拡散してきた結果であり、濃化の度合いは
焼鈍温度や焼鈍雰囲気等の焼鈍条件に左右されるもので
ある。これに対して、Ｃｕは表面に濃化せず表面から内
部までほぼ同じ濃度で存在していた。The present inventors have analyzed in detail the surface condition of an aluminum alloy containing Mg and Cu. As a result, Mg was converted to MgO on the surface of the aluminum alloy plate and was concentrated, and the Mg concentration on the outermost surface tended to be higher than the bulk concentration. This is a result of diffusion of Mg, which is easily oxidized in the annealing stage, from the inside to the surface, and the degree of concentration depends on the annealing conditions such as the annealing temperature and the annealing atmosphere. On the other hand, Cu was not concentrated on the surface and was present at almost the same concentration from the surface to the inside.
【００１１】このような表面状態を有するアルミニウム
合金板の接着性を評価した。表面にＭｇＯが濃化してい
ると油や汚れを吸着し易く、この油や汚れが上記（Ａ）
の接着界面近傍の力学的に弱い層となり、接着性を低下
させる原因となっていた。また、Ｍｇが濃化したＡｌ2
Ｏ3 層自身も上記（Ａ）の力学的に弱い層となり、接着
性能を低下させる原因となっていた。一方、Ｃｕは一般
的に有機物との親和性が高く、キレート能力に優れた物
質であるので、表面のＣｕ濃度が増加すると上記（Ｂ）
の接着剤との親和性が高まり、接着剤とアルミニウム合
金板の間に強固な結合が形成され、高い接着性が付与さ
れるようになった。The adhesiveness of the aluminum alloy plate having such a surface condition was evaluated. If MgO is concentrated on the surface, it is easy to adsorb oil and dirt, and this oil and dirt are
The layer became a mechanically weak layer near the adhesive interface, and was a cause of lowering the adhesiveness. Also, Al 2 with Mg concentrated
The O 3 layer itself also becomes the mechanically weak layer of (A) above, which is a cause of deterioration of the adhesive performance. On the other hand, since Cu is a substance that generally has a high affinity with organic substances and an excellent chelating ability, if the Cu concentration on the surface increases, the above (B)
The affinity with the adhesive of (1) was increased, a strong bond was formed between the adhesive and the aluminum alloy plate, and high adhesiveness was given.
【００１２】すなわち、アルミニウム合金板の酸洗法と
して、 （１）表面のＭｇの濃化層を除去する。 （２）Ｃｕを表面に濃化させる。 という方法を選ぶことによって、接着性に優れるアルミ
ニウム合金板を製造することが可能となることを見い出
し、本発明に到った。本発明を満足する酸としては例え
ば硫酸を挙げる事ができる。他の酸でも上記（１）と
（２）を満足すれば使用できる。本発明を完全に満足す
ることはできないが、酸洗による接着性の向上が観察さ
れる酸としては、例えば硝酸を挙げる事ができる。硝酸
はＭｇのみならずＣｕをも溶解してしまう酸であるの
で、Ｍｇの濃化層を除去する事による接着性向上効果は
得られるものの、Ｃｕの濃化による接着性の向上効果は
得られない。That is, as a method for pickling an aluminum alloy plate, (1) the concentrated Mg layer on the surface is removed. (2) Cu is concentrated on the surface. It has been found that it is possible to manufacture an aluminum alloy plate having excellent adhesiveness by selecting the above method, and the present invention has been completed. Examples of the acid satisfying the present invention include sulfuric acid. Other acids can be used as long as they satisfy the above (1) and (2). Although the present invention cannot be completely satisfied, nitric acid can be cited as an example of an acid which is observed to have improved adhesiveness by pickling. Since nitric acid is an acid that dissolves Cu as well as Mg, the effect of improving the adhesiveness can be obtained by removing the concentrated layer of Mg, but the effect of improving the adhesiveness by the concentration of Cu can be obtained. Absent.
【００１３】一方、アルミニウム合金板のエッチング法
としてアルカリエッチングも酸洗と同様に広く使用され
ている。しかし、アルカリエッチングではＣｕの表面へ
の濃化現象は起きるもののＭｇの濃化層が除去されない
ので、Ｃｕによる接着性の向上効果は得られるが、残存
するＭｇの濃化層による接着性の低下が有るため、本発
明には適さない。On the other hand, alkali etching is also widely used as an etching method for aluminum alloy plates, like pickling. However, although alkali etching causes a phenomenon of concentration of Cu on the surface, the concentration layer of Mg is not removed. Therefore, the effect of improving the adhesiveness of Cu can be obtained, but the adhesiveness of the remaining concentration layer of Mg deteriorates. Therefore, it is not suitable for the present invention.
【００１４】次に、アルミニウム合金板の成分限定理由
を説明する。まず、酸洗前のアルミニウム合金板におい
てＭｇ含有量は０．１〜１０重量％、Ｃｕ含有量は０．
０１〜１０重量％とする。Ｍｇ含有量が０．１重量％未
満または１０重量％超では十分な加工性が得られない。
またＣｕ含有率量０．０１重量％未満では酸洗による表
面へのＣｕ濃化量が少なく接着性の向上効果が得られ
ず、１０重量％超では十分な加工性が得られない。次
に、酸洗後のアルミニウム合金板表面における成分濃度
については、Ｍｇ量は、酸洗前より減少すれば接着性は
向上するが、最高の接着性を得るためには表面のＭｇ量
をバルクのＭｇ量とほぼ同じ水準まで低下させる必要が
ある。また、Ｃｕ量は酸洗により表面濃度が０．１重量
％以上になると接着性は向上する。しかし、１５重量％
超になると耐食性の点で問題がある。Next, the reasons for limiting the components of the aluminum alloy plate will be described. First, in the aluminum alloy plate before pickling, the Mg content is 0.1 to 10% by weight and the Cu content is 0.1.
It is set to 01 to 10% by weight. If the Mg content is less than 0.1% by weight or more than 10% by weight, sufficient workability cannot be obtained.
If the Cu content is less than 0.01% by weight, the amount of Cu concentrated on the surface by pickling is small and the effect of improving the adhesiveness cannot be obtained. If it exceeds 10% by weight, sufficient workability cannot be obtained. Next, regarding the concentration of components on the surface of the aluminum alloy plate after pickling, if the amount of Mg is smaller than that before pickling, the adhesiveness will improve, but in order to obtain the best adhesiveness, the Mg amount on the surface should be the bulk. It is necessary to reduce the amount of Mg to almost the same level. Further, when the amount of Cu is 0.1% by weight or more due to pickling, the adhesiveness is improved. However, 15% by weight
If it exceeds, there is a problem in terms of corrosion resistance.
【００１５】本発明のアルミニウム合金板においては、
必要に応じてＳｉ，Ｆｅ，Ｍｎ，Ｃｒ，Ｚｎ，Ｔｉ，Ｚ
ｒ，Ａｇのうち１種以上を各々５重量％以下で含有させ
る。これらの元素は強度確保のために添加されるが、あ
まり多すぎると加工性が劣化するので上限を５％とす
る。In the aluminum alloy plate of the present invention,
If necessary, Si, Fe, Mn, Cr, Zn, Ti, Z
One or more of r and Ag are contained in an amount of 5% by weight or less. These elements are added to secure the strength, but if they are too much, the workability deteriorates, so the upper limit is made 5%.
【００１６】[0016]
【実施例】次に、この発明を実施例によってさらに詳述
する。実験に使用したアルミニウム合金板は表１に示す
ような自動車用として広く使用されている５０００番系
のアルミニウム合金板を選んだ。アルミニウム合金板の
板厚は１ｍｍとした。接着剤は自動車の構造接着に一般
的に使用されている一液硬化型エポキシ系の接着剤を使
用した。酸洗は、酸として硫酸を選び１０重量％、８０
℃の条件で処理した。グロー放電発光分光法で酸洗前後
のアルミニウム合金板の表面を分析したところ、酸洗前
の段階ではいずれのアルミニウム合金板も焼鈍で生成し
たＭｇの濃化層が表面に存在していたが、酸洗によりＭ
ｇの濃化層は除去され、表面のＭｇ量はバルクのＭｇ量
とほぼ同じになっていた。Ｃｕは酸洗により表面に濃化
していた。表面に濃化したＣｕの量はサンプルＢでは約
０．５重量％、サンプルＣでは約６重量％、サンプルＤ
では約１４％であった。EXAMPLES Next, the present invention will be described in more detail by way of examples. As the aluminum alloy plate used in the experiment, a 5000 series aluminum alloy plate widely used for automobiles as shown in Table 1 was selected. The plate thickness of the aluminum alloy plate was 1 mm. The adhesive used was a one-component curing type epoxy adhesive which is generally used for structural adhesion of automobiles. For pickling, select sulfuric acid as the acid, 10% by weight, 80%
It was processed under the condition of ° C. When the surface of the aluminum alloy plate before and after pickling was analyzed by glow discharge emission spectroscopy, a concentrated layer of Mg produced by annealing was present on the surface of each aluminum alloy plate before pickling, M by pickling
The concentrated layer of g was removed, and the amount of Mg on the surface was almost the same as the amount of Mg in the bulk. Cu was concentrated on the surface by pickling. The amount of Cu concentrated on the surface was about 0.5% by weight for sample B, about 6% by weight for sample C, and sample D.
Was about 14%.
【００１７】[0017]
【表１】 [Table 1]
【００１８】接着性試験としてはＪＩＳＫ６８５４に従
った剥離試験とＪＩＳＫ６８５０に従った引っ張りせん
断試験を行い、各アルミニウム合金板の接着強度を酸洗
前後で測定して、Ｍｇ濃化層の除去による効果とＣｕの
表面への濃化による効果を考察した。接着性の評価は接
着強度と剥離形態の観察から良◎，可○，不可△の３段
階とした。As the adhesion test, a peeling test according to JISK6854 and a tensile shearing test according to JISK6850 were performed, and the adhesive strength of each aluminum alloy plate was measured before and after pickling to show the effect of removing the Mg concentrated layer. The effect of concentration of Cu on the surface was considered. The evaluation of the adhesiveness was made into three grades of good ◎, good ○, and bad △ from the observation of the adhesive strength and the peeling form.
【００１９】試験結果を表２に示す。いずれの合金も酸
洗前、即ち原板の段階では接着性が悪いが、酸洗により
Ｍｇの濃化層を除去することで接着性は向上している。
Ｃｕを添加していないＡよりもＢとＣの方が酸洗による
接着性向上の程度は大きい。接着試験片の破壊形態を観
察したところ、酸洗前では接着剤とアルミニウム合金板
の界面での接着剤の剥離であったが、酸洗によってＭｇ
の濃化層を除去しＣｕを濃化せしめたアルミニウム合金
板ではこのような界面剥離はほとんど見られず、ほぼ１
００％接着剤の凝集破壊であった。以上より、接着性の
劣るアルミニウム合金板に対して酸洗を施し、表面のＭ
ｇの濃化層を除去し、表面にＣｕを濃化させる事で接着
性が向上する事が明らかにされた。The test results are shown in Table 2. All the alloys have poor adhesion before pickling, that is, at the stage of the original plate, but the pickling improves the adhesion by removing the Mg concentrated layer.
The degree of adhesion improvement by pickling is greater in B and C than in A to which Cu is not added. Observation of the fracture form of the adhesive test piece revealed that the adhesive was peeled off at the interface between the adhesive and the aluminum alloy plate before pickling.
In the aluminum alloy plate in which the Cu concentrated layer was removed and Cu was concentrated, such interfacial peeling was hardly seen, and it was almost 1
It was a cohesive failure of the 00% adhesive. From the above, pickling was performed on the aluminum alloy plate with poor adhesion, and the surface M
It was revealed that the adhesion is improved by removing the concentrated layer of g and concentrating Cu on the surface.
【００２０】[0020]
【表２】 [Table 2]
【００２１】[0021]
【発明の効果】本発明は、従来法である硫酸−クロム酸
エッチング法、陽極酸化法、さらにはアルミニウム合金
板の表面にめっきを処理する方法と比較して、工程が少
ないために処理時間が短かくコストも安く製造できる。
また、クロム酸を使用しないことから環境上も安全であ
る、といった利点がある。さらには、本発明によりアル
ミニウム合金板の接着性が向上することから、家電材料
や自動車材料等の分野においてアルミニウム合金板の利
用が拡大される工業的意義も大きい。INDUSTRIAL APPLICABILITY According to the present invention, compared with the conventional sulfuric acid-chromic acid etching method, the anodic oxidation method, and the method of treating the surface of an aluminum alloy plate with plating, the treatment time is reduced due to the small number of steps. It is short and can be manufactured at low cost.
In addition, since chromic acid is not used, there is an advantage that it is environmentally safe. Further, since the adhesion of the aluminum alloy plate is improved by the present invention, the use of the aluminum alloy plate in the field of home electric appliances, automobile materials, etc. is also of great industrial significance.
Claims (3)
０１〜１０重量％を必須成分として含有し、残部がＡｌ
及び不可避的不純物からなるアルミニウム合金板におい
て、合金板表面にＭｇの濃化層がなく、表面にＣｕが
０．１〜１５重量％濃化した接着性に優れるアルミニウ
ム合金板。1. Mg: 0.1 to 10% by weight and Cu: 0.
01 to 10% by weight as an essential component, the balance is Al
And an aluminum alloy plate consisting of unavoidable impurities, wherein the alloy plate surface does not have a Mg concentrated layer and Cu is concentrated on the surface in an amount of 0.1 to 15% by weight, which is excellent in adhesion.
ｅ，Ｍｎ，Ｃｒ，Ｚｎ，Ｔｉ，Ｚｒ，Ａｇのうち１種以
上を含有する請求項１記載の接着性に優れるアルミニウ
ム合金板。2. Si, F with a single addition amount of 5% by weight or less
The aluminum alloy plate having excellent adhesiveness according to claim 1, containing at least one of e, Mn, Cr, Zn, Ti, Zr, and Ag.
面のＭｇ濃化層を除去し、同時にアルミニウム合金板表
面にＣｕを０．１〜１５重量％濃化させることを特徴と
する請求項１または２記載の接着性に優れるアルミニウ
ム合金板の製造方法。3. The pickling treatment removes the Mg-enriched layer on the surface of the aluminum alloy plate, and simultaneously concentrates 0.1 to 15% by weight of Cu on the surface of the aluminum alloy plate. A method for producing an aluminum alloy plate having excellent adhesiveness as described above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04552393A JP3207588B2 (en) | 1993-03-05 | 1993-03-05 | Aluminum alloy plate excellent in adhesion and method for producing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04552393A JP3207588B2 (en) | 1993-03-05 | 1993-03-05 | Aluminum alloy plate excellent in adhesion and method for producing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06256881A true JPH06256881A (en) | 1994-09-13 |
| JP3207588B2 JP3207588B2 (en) | 2001-09-10 |
Family
ID=12721778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP04552393A Expired - Fee Related JP3207588B2 (en) | 1993-03-05 | 1993-03-05 | Aluminum alloy plate excellent in adhesion and method for producing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3207588B2 (en) |
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