JPS5884994A - Electrolytic coloring method for aluminum or its alloy - Google Patents
Electrolytic coloring method for aluminum or its alloyInfo
- Publication number
- JPS5884994A JPS5884994A JP18201181A JP18201181A JPS5884994A JP S5884994 A JPS5884994 A JP S5884994A JP 18201181 A JP18201181 A JP 18201181A JP 18201181 A JP18201181 A JP 18201181A JP S5884994 A JPS5884994 A JP S5884994A
- Authority
- JP
- Japan
- Prior art keywords
- aluminum
- time
- alloy
- coloring
- electrolytic
- 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
- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000004040 coloring Methods 0.000 title claims abstract description 22
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 14
- 239000000956 alloy Substances 0.000 title claims abstract description 14
- 229910052782 aluminium Inorganic materials 0.000 title claims description 16
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims description 16
- 150000003839 salts Chemical class 0.000 claims abstract description 11
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 8
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical class [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 4
- 229910021626 Tin(II) chloride Inorganic materials 0.000 claims abstract 2
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- 239000010407 anodic oxide Substances 0.000 abstract description 12
- 229910000906 Bronze Inorganic materials 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 239000010974 bronze Substances 0.000 description 4
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 4
- 238000004904 shortening Methods 0.000 description 4
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- LGQLOGILCSXPEA-UHFFFAOYSA-L nickel sulfate Chemical compound [Ni+2].[O-]S([O-])(=O)=O LGQLOGILCSXPEA-UHFFFAOYSA-L 0.000 description 2
- 229910000363 nickel(II) sulfate Inorganic materials 0.000 description 2
- 241000218691 Cupressaceae Species 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- PEVJCYPAFCUXEZ-UHFFFAOYSA-J dicopper;phosphonato phosphate Chemical compound [Cu+2].[Cu+2].[O-]P([O-])(=O)OP([O-])([O-])=O PEVJCYPAFCUXEZ-UHFFFAOYSA-J 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 1
- 235000019341 magnesium sulphate Nutrition 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 150000002815 nickel Chemical class 0.000 description 1
- -1 nickel or tin Chemical class 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000004901 spalling Methods 0.000 description 1
- 235000002906 tartaric acid Nutrition 0.000 description 1
- 239000011975 tartaric acid Substances 0.000 description 1
Landscapes
- Electrochemical Coating By Surface Reaction (AREA)
Abstract
Description
【発明の詳細な説明】
本発明はアルミニウムまたはその合金の電解着色法、さ
らに具体的には所望の色調をより迅速に得ることの可能
な交流を用いたアルミニウムまたはその合金の電解着色
法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for electrolytically coloring aluminum or its alloys, and more specifically to a method for electrolytically coloring aluminum or its alloys using alternating current, which allows a desired color tone to be obtained more quickly.
従来から、アルミニウムまたはその合金の陽極酸化皮膜
を金属塩を含む電解浴中に浸漬し交流通電して着色する
方法は浅田法として周知の技術であり、広〈産業界にお
いて実施されている。この浅田法で最も多く使用されて
いる金属塩はニッケルやスズ等の塩であり、着色処理す
るといずれもブロンズ系の色調が得られる。このように
して得られる着色酸化皮膜は耐候性がすぐれているため
、その色調と相まって、カーテンウオールやサツシ等の
建材に広く用いられている。Conventionally, the method of coloring an anodic oxide film of aluminum or its alloy by immersing it in an electrolytic bath containing a metal salt and applying an alternating current current is a well-known technique known as the Asada method, and is widely practiced in industry. The metal salts most commonly used in the Asada method are nickel, tin, and other salts, and when colored, they all give a bronze color tone. The colored oxide film obtained in this way has excellent weather resistance, and due to its color tone, it is widely used in building materials such as curtain walls and sash.
しかしながら、ニッケルやスズ等の金属塩を用いて濃色
系の色調を得るためには、通常１５分以上の長い着色処
理時間を要し、生産性向上の観点からも、より迅速な電
解着色法の開発が望まれてきだ０
本発明は上記浅田法の欠点を改善することを目的とし、
アルミニウムまたはその合金の陽極酸化皮膜を金属塩を
含む電解浴中で交流電解する際、交流波形のプラス成分
の通電時間を部分的に短縮させて通電し、迅速且つつき
まわり性の良好な着色皮膜を得るアルミニウムまたはそ
の檜１の二次電解着色法を提供するものであるＯ
すなわち、本発明はアルミニウム系金属の陽極酸化皮膜
を金属塩含有電解浴中交流で二次電解着色する方法にお
いて、交流波形のプラス成分の通電時間を任意の割合で
短縮させ、マイナス成分との゛通電時間の比率を一定に
保ちなり；ら所望の色調が得られるまで連続通電するこ
とを特徴とするものである。However, in order to obtain a deep color tone using metal salts such as nickel or tin, a long coloring process time of usually 15 minutes or more is required, and from the viewpoint of productivity improvement, the faster electrolytic coloring method is The purpose of the present invention is to improve the drawbacks of the Asada method,
When an anodic oxide film of aluminum or its alloy is electrolyzed with alternating current in an electrolytic bath containing metal salts, the energization time of the positive component of the alternating current waveform is partially shortened to produce a colored film that is quick and has good pecking properties. That is, the present invention provides a method for secondary electrolytic coloring of aluminum or its cypress 1 to obtain the following: It is characterized by shortening the energization time of the positive component of the waveform by an arbitrary ratio, keeping the ratio of energization time with the negative component constant, and continuously energizing until the desired color tone is obtained.
プラス成分を短縮させることによる効果は１％より現わ
れるが、１０チを越えると通常の交流の正弦波との差が
顕著になり、実際上、１０％を越え５０％未満の割合で
プラス成分の通電時間を短縮させるのが好捷しいが、１
〜９９％の範囲で任意に選択し得るものである。交流波
形のプラス成分の短縮はプラス側波形の片側がカットさ
れることによってなされ、そのようなカットはサイリス
タの点弧角制御によって行なうことができる。The effect of shortening the positive component becomes apparent from 1%, but when it exceeds 10 inches, the difference from a normal AC sine wave becomes noticeable, and in reality, the positive component shortens at a rate exceeding 10% and less than 50%. It would be better to shorten the energization time, but 1
It can be arbitrarily selected within the range of 99%. Shortening of the positive component of the AC waveform is achieved by cutting one side of the positive waveform, and such cutting can be done by controlling the firing angle of the thyristor.
アルミニウム捷たはその合金の電解着色は陽極酸化皮膜
の側がカソードを帯びる時に電解浴中の金属イオンが陽
極酸化皮膜中に析出するため、陽極酸化皮膜側がカソー
ドを帯びる時間が少しでも長い方が着色性がすぐれてい
ると考えられているが、現在までに有効な方法は提案さ
れていない。When electrolytically coloring aluminum strips or their alloys, metal ions in the electrolytic bath precipitate into the anodic oxide film when the anodic oxide film side becomes cathode, so the longer the time that the anodic oxide film side takes on the cathode color, the better the coloring. Although it is considered to have excellent properties, no effective method has been proposed to date.
しかしながら、上述の本発明による方法を適用すること
により、陽極酸化皮膜がカソードを帯びる時間を調整す
ることによって１、同一色調の着色を達成するのに要す
る時−藺が、従来の浅田法に比−べ、はぼ半分位にまで
短縮可能になる。また本発明による方法は特定の金属塩
に限定されるものではなく、従来からアルミニウムまた
はその合金の電解着色に使用されるすべての金属塩に適
用可能である。However, by applying the method according to the present invention described above, by adjusting the time during which the anodic oxide film takes on the cathode color, the time required to achieve coloring of the same tone can be reduced compared to the conventional Asada method. - The time can be shortened to about half. Further, the method according to the present invention is not limited to a specific metal salt, but can be applied to all metal salts conventionally used for electrolytic coloring of aluminum or its alloys.
また、ニッケル塩の電解浴の場合、浅田法では長時間電
解を行なうと、スポーリングが発生してしまうため、長
時間を要するブランク系の着色皮膜を得るのが困難であ
りたが、本発明を適用することにより比較的短時間でブ
ランク系の着色皮膜が得られる。In addition, in the case of a nickel salt electrolytic bath, spalling occurs when electrolysis is performed for a long time in the Asada method, making it difficult to obtain a blank colored film that requires a long time. By applying this, a blank colored film can be obtained in a relatively short time.
次に本発明の実施例を記載する。Next, examples of the present invention will be described.
実施例（１）
硫酸濃度１５０Ｐ／７、浴温２０°Ｃ１電流密度１５０
〜譬で、アルミニウムＡｌ２００Ｐをアノードにて電解
処理し、１４μｍの陽極酸化皮膜を形成した。Example (1) Sulfuric acid concentration 150P/7, bath temperature 20°C, current density 150
- In the example above, aluminum Al200P was electrolytically treated at the anode to form a 14 μm anodic oxide film.
次いで硫酸ニッケル３０Ｐ／、＃、硫酸マグネ／ウム１
０ ？／７ 、はう酸３０ ’ｉ−／Ａを含有する水溶
液を２２℃に保ち、対極をグラファイトにして、陽極酸
化皮膜を交流電解する。この場合、交流電源として、通
常の正弦波の各周期のプラス成分の通電時間を５０チ短
縮して用いた。着色電圧は１５Ｖ で一定にし、着色時
間を変化させた場合のＮＢＳ Ｌ値（濃淡）との関係
を添付の図面に示す。Then nickel sulfate 30P/, #, magnesium sulfate 1
0? /7, an aqueous solution containing 30' i-/A of oxalic acid is maintained at 22° C., a counter electrode is graphite, and the anodic oxide film is electrolyzed with alternating current. In this case, the AC power supply was used by shortening the energization time of the positive component of each period of a normal sine wave by 50 inches. The attached drawing shows the relationship with the NBS L value (shade) when the coloring voltage was kept constant at 15 V and the coloring time was varied.
なお、図中、ライトブロンズ、ブロンズ、ダークブロン
ズ、ブラックの各色調を得るのに必要な従来の浅田法お
よび本発明の方法による時間は次表の通りである０
硫酸濃度１５０ ？／Ｚ、浴温２０°Ｃ１電流密度１５
０Ａ／ｍ’ でアルミニウムＡ１２００Ｐをアノード
にして電解処理し、１４μｍの陽極酸化皮膜を生成させ
る。次いで硫酸ニッケル２５ｙ−／７、ピロリン酸銅５
１／！、硫酸マグネンウム３０ Ｐ／ｐ、はう酸２０？
／！、酒石酸２０１／ノの水溶液をＰＨ４，５に調整し
、浴温を２５°Ｃに保ち、対極をグラファイトにし、着
色電圧を１２Ｖ一定で６分間、陽極酸化皮膜を電解した
。この場合に得られた本発明方法の各カット率でのＮＢ
Ｓ Ｌ値（濃淡）を従来方法との結果も含めて下記の表
−１に示す。In addition, in the figure, the time required to obtain each color tone of light bronze, bronze, dark bronze, and black according to the conventional Asada method and the method of the present invention is as shown in the following table.0 Sulfuric acid concentration 150 ? /Z, bath temperature 20°C1 current density 15
Electrolytic treatment is performed using aluminum A1200P as an anode at 0 A/m' to form an anodic oxide film of 14 μm. Next, nickel sulfate 25y-/7, copper pyrophosphate 5
1/! , Magnenium sulfate 30 P/p, Hydrolic acid 20?
/! , an aqueous solution of tartaric acid 201/no was adjusted to pH 4.5, the bath temperature was maintained at 25°C, graphite was used as the counter electrode, and the anodic oxide film was electrolyzed at a constant coloring voltage of 12 V for 6 minutes. NB at each cut rate of the method of the present invention obtained in this case
The S L values (shading) are shown in Table 1 below, including the results with the conventional method.
添付の図面および上記の表から容易に理解されるように
、本発明の方法により、従来の浅田法に比べて、各色調
の着色を極めて短時間に得ることが可能になり、永年の
懸案であった浅田法の欠点が大幅に改善された。As can be easily understood from the attached drawings and the above table, the method of the present invention makes it possible to obtain each color tone in an extremely short time compared to the conventional Asada method, and solves a long-standing problem. The shortcomings of the Asada method have been greatly improved.
図は着色時間を変化させた場合の、従来の浅田法による
場合および本発明による場合の、ＮＢＳＬ値（濃度）と
の関係を示すグラフである。The figure is a graph showing the relationship with the NBSL value (density) in the case of the conventional Asada method and the case of the present invention when the coloring time is changed.
Claims (1)
金属塩含有電解浴中交流で二次電解着色する方法におい
て、交流波形のプラス成分の通電時間を任意の割合で短
縮させ、マイナス成分との通電時間の比率を一定に保ち
ながら所望の色調が得られるまで連続通電することを特
徴とするアルミニウムまたはその゛合金の電解着色法。 （２）６ 特許請求の範囲第１項に記載の方法におい
て、前記交流波形のプラス成分の通電時間を１０％を越
える割合で短縮させるアルミニウムまたはその合金の電
解着色法。 （■、特許請求の範囲第１項に記載の方法において、前
記交流波形のプラス成分の通電時間を１０％を越え５０
％未満の割合で短縮させるアルミニウムまたはその合金
の電解着色法。 （４）、特許請求の範囲第１項に記載の方法において、
前記金属塩はニッケルまたはスズの塩であるアルミニウ
ムまたはその合金の電解着色法。[Claims] (1) In a method of secondary electrolytic coloring of an anodized film of aluminum or its alloy with alternating current in an electrolytic bath containing a metal salt, the energization time of the positive component of the alternating current waveform is shortened by an arbitrary ratio. An electrolytic coloring method for aluminum or its alloy, characterized by continuously applying current until a desired color tone is obtained while keeping the ratio of current application time to a negative component constant. (2)6 A method for electrolytically coloring aluminum or its alloy, in which the energization time of the positive component of the alternating current waveform is shortened by more than 10% in the method according to claim 1. (■) In the method according to claim 1, the energization time of the positive component of the AC waveform exceeds 10% and 50%.
A method of electrolytic coloring of aluminum or its alloys, which shortens the aluminum or its alloys by less than %. (4) In the method according to claim 1,
An electrolytic coloring method for aluminum or its alloy, wherein the metal salt is a nickel or tin salt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18201181A JPS5884994A (en) | 1981-11-13 | 1981-11-13 | Electrolytic coloring method for aluminum or its alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18201181A JPS5884994A (en) | 1981-11-13 | 1981-11-13 | Electrolytic coloring method for aluminum or its alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5884994A true JPS5884994A (en) | 1983-05-21 |
Family
ID=16110761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18201181A Pending JPS5884994A (en) | 1981-11-13 | 1981-11-13 | Electrolytic coloring method for aluminum or its alloy |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5884994A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5352250A (en) * | 1976-10-25 | 1978-05-12 | Aiden Kk | Process for coloring aluminum anodized coating |
| JPS5372744A (en) * | 1976-12-11 | 1978-06-28 | Nippon Aluminium Mfg | Electrolytic coloring method of aluminium or its alloy |
| JPS5428740A (en) * | 1977-08-09 | 1979-03-03 | Nippon Keikinzoku Sougou Kenki | Method of electrolytically coloring aluminum or aluminum alloys |
-
1981
- 1981-11-13 JP JP18201181A patent/JPS5884994A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5352250A (en) * | 1976-10-25 | 1978-05-12 | Aiden Kk | Process for coloring aluminum anodized coating |
| JPS5372744A (en) * | 1976-12-11 | 1978-06-28 | Nippon Aluminium Mfg | Electrolytic coloring method of aluminium or its alloy |
| JPS5428740A (en) * | 1977-08-09 | 1979-03-03 | Nippon Keikinzoku Sougou Kenki | Method of electrolytically coloring aluminum or aluminum alloys |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4414077A (en) | Method for production of colored aluminum article | |
| US4042468A (en) | Process for electrolytically coloring aluminum and aluminum alloys | |
| US4571287A (en) | Electrolytically producing anodic oxidation coat on Al or Al alloy | |
| US4070255A (en) | Process for electrolytically coloring aluminum and aluminum alloys | |
| US3795590A (en) | Process for coloring aluminum and alloys of aluminum having an anodized surface | |
| JPS5884994A (en) | Electrolytic coloring method for aluminum or its alloy | |
| JPS5948960B2 (en) | How to color aluminum or aluminum alloy with primary colors | |
| JPS59226197A (en) | Surface treatment of aluminum alloy for patterning | |
| JPS5920759B2 (en) | Coloring method for aluminum or aluminum alloy | |
| JPS6338438B2 (en) | ||
| JP2561397B2 (en) | Electrolytic coloring method of aluminum or aluminum alloy | |
| CA1038327A (en) | Method of forming colored oxide film on aluminum or aluminum alloy | |
| JPS638197B2 (en) | ||
| JPS59182990A (en) | Method for coloring aluminum or aluminum alloy | |
| DE1948552C (en) | Process for the electrolytic production of colored oxide layers on aluminum | |
| JPS5913095A (en) | Electrolytic pigmentation method of aluminum or aluminum alloy | |
| KR800000172B1 (en) | Aluminium color plating method | |
| JPH04365895A (en) | Method for coloring aluminum or aluminum alloy into blue color | |
| JPS5816098A (en) | Coloring method for aluminum or aluminum alloy | |
| JPS63210295A (en) | Coloring treatment of aluminum or aluminum alloy for developing pastel color | |
| JPH0359150B2 (en) | ||
| JPH05222585A (en) | Method for electrolytic pigmentation aluminum or aluminum alloy | |
| JP2002241993A (en) | Electrolytic coloring method for aluminum alloy and colored aluminum alloy material | |
| JPS5920760B2 (en) | Coloring method for aluminum or aluminum alloy | |
| JPS62278295A (en) | Method for electrolytically coloring aluminum or aluminum alloy |