JPS62146251A - Manufacture of medium strength aluminum alloy plate for decoration - Google Patents
Manufacture of medium strength aluminum alloy plate for decorationInfo
- Publication number
- JPS62146251A JPS62146251A JP28696485A JP28696485A JPS62146251A JP S62146251 A JPS62146251 A JP S62146251A JP 28696485 A JP28696485 A JP 28696485A JP 28696485 A JP28696485 A JP 28696485A JP S62146251 A JPS62146251 A JP S62146251A
- Authority
- JP
- Japan
- Prior art keywords
- aluminum alloy
- less
- alloy
- alloy plate
- decoration
- 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
Links
Landscapes
- Metal Rolling (AREA)
Abstract
Description
【発明の詳細な説明】
[産業上の利用分rf]
本発明は、装飾用中強度アルミニウム合金板小 &J
:告 ± 7k tヂ lj!1 斗 1[発明の
背景]
現在、アルミニウム合金板は、装飾を目的とする場合に
はその表面を化学研磨あるいは電解研磨して表面に光輝
性を与える。そして、表面を保護することを目的として
さらに陽極酸化処理を行なう。[Detailed description of the invention] [Industrial use RF] The present invention is a medium strength aluminum alloy plate for decoration.
:Notice ± 7k tji lj! 1 Doo 1 [Background of the Invention] Currently, when an aluminum alloy plate is intended for decoration, its surface is chemically polished or electrolytically polished to give the surface shine. Then, anodization treatment is further performed for the purpose of protecting the surface.
従来このような装飾を目的とすアルミニウム合金板は、
市販純度又は工業用純度のアルミニウム地金を使用して
いる。Conventionally, aluminum alloy plates used for this kind of decoration were
Commercially available or industrial purity aluminum ingots are used.
しかし、かかる地金を使用して作成した従来のアルミニ
ウム合金板は、化学研磨あるいは電解研磨による光輝処
理により一旦光輝性が与えられるにも係らずその後の陽
極酸化処理により表面が白濁し、要求性能が得られにく
いという不具合が生じる。。However, although conventional aluminum alloy plates made using such base metals are once given brightness by brightening treatment using chemical polishing or electrolytic polishing, the surface becomes cloudy due to subsequent anodizing treatment, and the required performance is not achieved. A problem arises in that it is difficult to obtain. .
本発明者はその原因を検討したところ、つぎのことがわ
かった、すなわち、アルミニウム地金に不可避的に入る
Fe、Si等の不純物とAlとからなる金属間化合物(
主にAl−Fe3本 A I −F
p −S t ふ ) が
セ5 質 イk 夕九 々t 押 7bびそれに引き続
く熱間圧延時に生成・析出する。これら金属間化合物の
析出物が多いと、化学研磨や電解研磨により表面に光輝
性を与えた後陽極酸化処理する際、陽極酸化皮膜中にこ
れが混入し皮膜の透過度を下げる事となるということで
ある。The inventor investigated the cause and found the following: that is, an intermetallic compound consisting of Al and impurities such as Fe and Si that inevitably enter the aluminum base metal (
Mainly 3 Al-Fe A I-F
p-Stfu) is
It forms and precipitates during 7b and subsequent hot rolling. If there are many precipitates of these intermetallic compounds, when anodic oxidation treatment is performed after imparting brightness to the surface by chemical polishing or electrolytic polishing, these will be mixed into the anodic oxide film and reduce the transmittance of the film. It is.
そして、これを防止するためには材料中に不可避的に含
まれるFe、Stの含有量を極力下げると効果が大きい
事を把んだ。In order to prevent this, it has been found that reducing the content of Fe and St, which are inevitably included in the material, as much as possible is highly effective.
本発明はかかる知見に基づきなされたものである。The present invention has been made based on this knowledge.
[発明の概要]
本発明は、Mg:1.5〜3.0%、Cu:0.01〜
o、i%、Si:0−005%以下、Fe:0.005
%以下、その他不可避的に含まれる不純物元素がそれぞ
れ0.005%以下で、かつ、合計が0.01%以下、
残部Alからなるアルミニウム合金材を450℃〜60
0℃で均質化処理した後、板厚3〜8mmまで熱間圧延
し、ついで、そのまま、又は冷間圧延してから、150
℃〜400℃の温度で仕上焼鈍することを特徴とする。[Summary of the invention] The present invention provides Mg: 1.5 to 3.0%, Cu: 0.01 to
o, i%, Si: 0-005% or less, Fe: 0.005
% or less, other unavoidably contained impurity elements are each 0.005% or less, and the total is 0.01% or less,
Aluminum alloy material consisting of balance Al is heated to 450°C to 60°C.
After homogenizing at 0°C, hot rolling to a thickness of 3 to 8 mm, then directly or after cold rolling, 150
It is characterized by final annealing at a temperature of ℃ to 400℃.
以下に成分の限定理由を説明する。The reasons for limiting the ingredients will be explained below.
Fe: アルミニウム地金中に不可避的に含まれる元素
でありAl−Fe系の金属間化合物を生成する。これは
200℃付近ではわずか0.01%しか固溶しないので
析出物となるため合金中に多量に分散し、これが陽極酸
化皮膜中に混入し表面を白濁させる。従ってFeは0.
005%以下が必須である。Fe: An element that is unavoidably contained in aluminum metal and forms an Al-Fe-based intermetallic compound. At around 200°C, only 0.01% of this solid solution exists, so it becomes a precipitate and is dispersed in large quantities in the alloy, which mixes into the anodic oxide film and makes the surface cloudy. Therefore, Fe is 0.
0.005% or less is essential.
Si: 単独では、敏感に光輝性を損なう事は少ないが
、やはり陽極酸化皮膜の透明度を低下させる。又Mgと
化合しM g 、 S iなる金属間化合物を形成し、
皮膜の透明度を低下させる。従ってStは0.005%
以下が必須である。Si: When used alone, Si does not easily impair the brightness, but it also reduces the transparency of the anodic oxide film. It also combines with Mg to form an intermetallic compound called Mg, Si,
Decreases film transparency. Therefore, St is 0.005%
The following are required.
Cu: 化学研磨時に光輝性を改善させる効果がある。Cu: Has the effect of improving brightness during chemical polishing.
0.01%未満ではその効果がなく0.1%を越えると
、皮膜の透明度を低下させるとともに皮膜の色調が変わ
るので、Cuは0.01%〜0.1%の範囲である。If it is less than 0.01%, it has no effect, and if it exceeds 0.1%, the transparency of the film decreases and the color tone of the film changes, so Cu is in the range of 0.01% to 0.1%.
Mg: 本発明品の強度を与えるために必須の元素であ
り、1.5%未満では十分な強・度が得られず、3%を
越えると強度が高過ぎるとともに、成形加工性を損なう
ので1.5〜3%の範囲とする。Mg: An essential element to provide strength to the product of the present invention. If it is less than 1.5%, sufficient strength and strength cannot be obtained, and if it exceeds 3%, the strength is too high and the moldability is impaired. The range is 1.5 to 3%.
その他元素もそれぞれ0.005%以下、合計0.01
%以下でないと光輝が損なわれる。Other elements are also less than 0.005% each, total 0.01
% or less, the brightness will be impaired.
均質化熱処理温度は450℃未満では金属間化合物を析
出させ、600℃を越えると鋳塊のガスによるフクレや
バーニングを起こすので450℃〜600℃の範囲であ
る。The homogenization heat treatment temperature is in the range of 450°C to 600°C, because if it is less than 450°C, intermetallic compounds will precipitate, and if it exceeds 600°C, blistering or burning will occur due to gas in the ingot.
熱間圧延板厚は3 m m未満ではその後の製品までの
冷間圧延量が少なく組織の均一性が得られず製品の加工
性等を損ねる。8mmを越えるとその後の冷間加工率が
大きくなり経済的でないので熱間圧延板厚は3〜8 m
mである。If the hot-rolled sheet thickness is less than 3 mm, the amount of subsequent cold rolling to the product will be small, and the uniformity of the structure will not be obtained, impairing the workability of the product. If the thickness exceeds 8 mm, the subsequent cold working rate will increase and it is not economical, so the hot rolled plate thickness should be 3 to 8 m.
It is m.
最終工程における熱処理は成形加工性を得るためのもの
であり150℃未満では強度が高く越えると再結晶粒が
粗大化し成形加工酢肌荒れ(オレンジピール)を起こす
ので150℃〜400℃の範囲である。The heat treatment in the final step is to obtain moldability, and if the strength is lower than 150°C, the recrystallized grains will become coarse and roughness of the molding vinegar surface (orange peel) will occur, so the temperature should be in the range of 150°C to 400°C. .
なお、冷間圧延は製品板厚が3mm以下の場合に必要で
あり3 m mを越える場合については光輝アルマイト
性を考える場合必ずしも必須でなく冷間圧延を施しても
、またそのまま8延板の状態でもさしつかえない。Note that cold rolling is necessary when the product plate thickness is 3 mm or less, and when it exceeds 3 mm, it is not necessarily necessary when considering bright alumite properties. I don't mind the condition.
[実施例]
本発明品と同程度の強度を有する第1表の合金を第2表
に示す製造工程にて製作し、各種特性を調査した。[Example] Alloys shown in Table 1 having strengths comparable to those of the products of the present invention were manufactured using the manufacturing process shown in Table 2, and various properties were investigated.
合金1は従来合金A3052に相当し、合金2はA32
52に相当し、合金3は本発明合金である。Alloy 1 corresponds to conventional alloy A3052, and alloy 2 corresponds to A32
52, and Alloy 3 is the alloy of the present invention.
試料イ、口、ハは同一製造条件であり、又ハ、二、ホは
本発明合金であるが製品板厚、冷間圧延の有無の効果を
調べるためのものである。Samples A, C, and C were produced under the same manufacturing conditions, and C, II, and E were alloys of the present invention, but they were used to investigate the effect of the thickness of the product and the presence or absence of cold rolling.
ものである。It is something.
これらの製品の諸特性を第3表に示す。Table 3 shows the characteristics of these products.
本発明品ハ、二、ホ、へは、従来合金イ、口に比べて機
械的性質、成形加工ともに保色ない。一方光輝処理後の
アルマイト性は何れも従来品に比べ著しく改善され、本
発明品の効果は明らかである。The products of the present invention (C), (2), (E) and (F) do not retain color in both mechanical properties and molding process compared to conventional alloys (A) and (B). On the other hand, the alumite properties after brightening treatment were all significantly improved compared to conventional products, and the effects of the products of the present invention are clear.
次に試料イ、口、ハについて電解研磨後の陽極酸化皮膜
厚を変えて反射率を測定した結果を図面に示す。Next, the results of measuring the reflectance of Samples A, C, and C by changing the thickness of the anodic oxide film after electrolytic polishing are shown in the drawing.
電解研府時の反射率はほぼ同じ値が得られるが、陽極酸
化皮膜厚が大となるにつれ低下する。従来合金での低下
が著しいのに比し本発明合金での低下が少ない。Although almost the same value of reflectance is obtained during electrolysis, it decreases as the thickness of the anodic oxide film increases. Compared to the conventional alloy, where the decrease is significant, the decrease with the present alloy is small.
[発明の効果]
本発明に係る光輝アルマイト性に優れた中強度アルミニ
ウム合金板の製造方法は、上記の構成を有しいるもので
あり優れた機械的性質、成形性を有し、かつ優れた光沢
を発するアルミニウム合金板を製造することができ、装
飾用として極めて有効なものである。[Effect of the invention] The method for producing a medium-strength aluminum alloy plate with excellent bright alumite properties according to the present invention has the above-mentioned structure, has excellent mechanical properties and formability, and has excellent It is possible to produce a shiny aluminum alloy plate, which is extremely effective for decorative purposes.
図面は陽極酸化皮nりと反射率との関係を示すグラフで
ある。The drawing is a graph showing the relationship between anodized coating and reflectance.
Claims (1)
Si:0.005%以下、Fe:0.005%以下、そ
の他不可避的に含まれる不純物元素がそれぞれ0.00
5%以下で、かつ、合計が0.01%以下、残部Alか
らなるアルミニウム合金材を450℃〜600℃で均質
化処理した後、板厚3〜8mmまで熱間圧延し、ついで
、そのまま、又は冷間圧延してから、150℃〜400
℃の温度で仕上焼鈍することを特徴とする装飾用中強度
アルミニウム合金板の製造方法。ただし、%は重量%で
ある。Mg: 1.5-3.0%, Cu: 0.01-0.1%,
Si: 0.005% or less, Fe: 0.005% or less, and other unavoidably contained impurity elements are each 0.00%.
After homogenizing an aluminum alloy material consisting of 5% or less, and the balance being 0.01% or less at 450°C to 600°C, it is hot rolled to a plate thickness of 3 to 8mm, and then, as it is, Or after cold rolling, 150℃~400℃
A method for producing a decorative medium-strength aluminum alloy plate, which comprises final annealing at a temperature of °C. However, % is weight %.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP28696485A JPS62146251A (en) | 1985-12-19 | 1985-12-19 | Manufacture of medium strength aluminum alloy plate for decoration |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP28696485A JPS62146251A (en) | 1985-12-19 | 1985-12-19 | Manufacture of medium strength aluminum alloy plate for decoration |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS62146251A true JPS62146251A (en) | 1987-06-30 |
Family
ID=17711231
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP28696485A Pending JPS62146251A (en) | 1985-12-19 | 1985-12-19 | Manufacture of medium strength aluminum alloy plate for decoration |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS62146251A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003221658A (en) * | 2001-11-22 | 2003-08-08 | Furukawa Electric Co Ltd:The | METHOD FOR MANUFACTURING PRECOATED Al ALLOY SHEET, PRECOATED Al ALLOY SHEET RICH IN DESIGN CHARACTERISTICS AND BEND FORMABILITY MANUFACTURED BY THE METHOD, HOUSING USING THE PRECOATED Al ALLOY SHEET, AND MEASURING INSTRUMENT USING THE HOUSING |
-
1985
- 1985-12-19 JP JP28696485A patent/JPS62146251A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003221658A (en) * | 2001-11-22 | 2003-08-08 | Furukawa Electric Co Ltd:The | METHOD FOR MANUFACTURING PRECOATED Al ALLOY SHEET, PRECOATED Al ALLOY SHEET RICH IN DESIGN CHARACTERISTICS AND BEND FORMABILITY MANUFACTURED BY THE METHOD, HOUSING USING THE PRECOATED Al ALLOY SHEET, AND MEASURING INSTRUMENT USING THE HOUSING |
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