JPS5847473B2 - Surface treatment method for aluminum or aluminum alloy - Google Patents
Surface treatment method for aluminum or aluminum alloyInfo
- Publication number
- JPS5847473B2 JPS5847473B2 JP13449078A JP13449078A JPS5847473B2 JP S5847473 B2 JPS5847473 B2 JP S5847473B2 JP 13449078 A JP13449078 A JP 13449078A JP 13449078 A JP13449078 A JP 13449078A JP S5847473 B2 JPS5847473 B2 JP S5847473B2
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- Prior art keywords
- sodium
- potassium
- aluminum
- electrolytic
- electrolytic bath
- 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.)
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- Electrochemical Coating By Surface Reaction (AREA)
Description
【発明の詳細な説明】
本発明は．アルミニウムまたはアルミニウム合金（以下
アルミニウムという）の表面処理方法｛こ関し．さら｛
こ詳しくは．アルミニウムを表面に凹凸状の立体的な筋
状模様を形成するアルミニウムの表面処理方法に関する
。[Detailed Description of the Invention] The present invention... Surface treatment method for aluminum or aluminum alloy (hereinafter referred to as aluminum) {Koseki. Sara{
For more details. The present invention relates to an aluminum surface treatment method for forming an uneven three-dimensional striped pattern on the surface of aluminum.
従来．アルミニウムの表面４こ模様を形成する方法とし
ては．アルミニウムの表面を適当な保護材料でマスキン
グして塗装するマスキング法．スクリーン印刷又は転写
印刷等の千段｛こより塗料その他の着色料をアルミニウ
ムの表面Ｉこ印刷する方法．転圧ロールまたはプレス成
形１こよりアルミニウム表面に所定の刻線を圧刻するエ
ンボス法．写真製版の手法によりアルミニウム表面を薬
品でエッチングして原画を蝕刻する蝕刻法などが知られ
でいるが、マスキング法，印刷法および蝕刻法はマスキ
ング加工および製版に手間がかかるだけでなく．その後
の二次処理が非常｛こ面倒であり．特殊な機械設備が必
要であるため加工経費が高くつき．複雑な形状の形材に
は使用できない欠点があり．一方．エンボス法でも複雑
な形状の形材には適用できに＜＜．さらにダイスや成形
型の製作に多犬の費用を用する難点があった。Conventional. Here is a method for forming a four-sided pattern on the surface of aluminum. A masking method in which the surface of aluminum is masked with a suitable protective material and then painted. A method of printing paint or other coloring materials on the surface of aluminum in 1,000 steps such as screen printing or transfer printing. An embossing method in which predetermined scoring lines are stamped on the aluminum surface using a compaction roll or press molding. The etching method, in which the aluminum surface is etched with chemicals using photolithography to etch the original image, is well known, but masking, printing, and etching methods not only require time and effort for masking and plate making. The subsequent secondary processing is extremely troublesome. Processing costs are high because special machinery and equipment are required. There is a drawback that it cannot be used for shapes with complex shapes. on the other hand. Even the embossing method cannot be applied to shapes with complex shapes. Furthermore, there was the drawback that a large amount of money was required to manufacture the dies and molds.
本発明は．上記の点に鑑み．マスキング塗装．印刷、圧
刻．蝕刻などの複雑な機械的千法１こよらず．電気化学
的に容易にアルミニウム表面｛こ模様を形或することが
できる独自な表面処理方法を提供することを目的としで
なされたものである。The present invention is. In view of the above points. Masking painting. Printing, stamping. There are many complicated mechanical methods such as etching. This method was developed with the aim of providing a unique surface treatment method that can easily form patterns on aluminum surfaces electrochemically.
本発明者らの研究１こよると．アルミニウムＥこ陽極酸
化皮膜処理を施した後．リン酸三ナトリウム．リン酸（
ヘ）カリウム．硫酸カリウム，硫酸リチウム．ケイ酸カ
リウム．炭酸ナトリウム．硼酸ナトリウム．メタリン酸
カリウム．ビロリン酸ナトリウム．水酸化ナトリウム．
酒石酸カリウム．酒石酸ナトリウム．酢酸カリウム．シ
ュウ酸ナトリウム．フクル酸ナトリウム．クエン酸ナト
リウムおよびスルフアミン酸ナトリウム（以下．特定化
合物という）のｔ種以上を含有する電解浴中に浸漬し．
被処理物を蔭極としで直流もしくはこれと同等の効果を
もつ電流波形で電解処理すると．陽極酸化皮膜が筋状に
触刻され．筋状模様が形成されることを見出した。According to research 1 of the present inventors. After aluminum E has been anodized. Trisodium phosphate. phosphoric acid(
F) Potassium. Potassium sulfate, lithium sulfate. Potassium silicate. sodium carbonate. Sodium borate. Potassium metaphosphate. Sodium birophosphate. Sodium hydroxide.
Potassium tartrate. Sodium tartrate. Potassium acetate. Sodium oxalate. Sodium fuculate. immersed in an electrolytic bath containing at least T types of sodium citrate and sodium sulfamate (hereinafter referred to as specific compounds).
When the object to be treated is placed in the negative pole and subjected to electrolytic treatment using direct current or a current waveform that has an equivalent effect. The anodized film is engraved in stripes. It was found that a streaky pattern was formed.
すなわち．本発明による方法は．アルミニウムを公知の
無機酸または有機酸の水溶液中にで陽極酸化皮膜処理を
施した後．前記特定化合物の１種以上を含有する毛解浴
中に浸漬し．上記アルミニウムを蔭極としで直流もしく
はこれと同等の効果をもつ電流波形により電解処理する
こと１こよって．陽極酸化皮膜を部分的に上下方向に触
刻して筋状模様を生成させることを特徴とするアルミニ
ウムの表面処理方法である。In other words. The method according to the present invention is. After aluminum is anodized in an aqueous solution of a known inorganic or organic acid. immersed in a hair removal bath containing one or more of the specific compounds. This is done by electrolytically treating the above aluminum as a negative electrode using direct current or a current waveform that has an equivalent effect. This is an aluminum surface treatment method characterized by partially etching the anodic oxide film in the vertical direction to generate a striped pattern.
本発明１こよる他の方法は，上記のように処理して陽極
酸化皮膜を部分的に上下方向に蝕刻して筋状模様を生成
させた後．有機酸を含有する電解浴中での陽極酸化処理
（電解発色法）または筋状部分を陽極酸化処理後金属塩
を含有する電解浴中での交流電解処理（電解着色法）に
よって．筋状模様部分１こ着色皮膜を形或して着色筋状
模様を形戊する方法である。Another method according to the present invention is to perform the treatment as described above and partially etch the anodic oxide film in the vertical direction to generate a striped pattern. Either by anodizing in an electrolytic bath containing an organic acid (electrolytic coloring method) or by anodizing the striped portion and then alternating current electrolytic treatment in an electrolytic bath containing a metal salt (electrolytic coloring method). In this method, a colored film is formed in one striped pattern portion to form a colored striped pattern.
本発明によるさらに他の方法は．蝕刻Ｉこよる筋状模様
の生成の前に．アルミニウムを公知の無機酸またはそれ
に有機酸を添加した水溶液中で陽極酸化処理後．無色酸
化皮膜の場合有機酸を含有する電解浴中での陽極酸化処
理（電解発色法）．金属塩を含有する浴中での交流電解
処理（電解着色法）また１１浸漬着色処理１こよって一
次着色酸化皮膜を形或した後．前記した方法によって着
色酸化皮膜を部分的に上下方向に蝕刻して筋状模様を生
威させ．その後筋状模様部分に電解発色法または陽極酸
化処理後電解着色法によって二次着色皮膜を形成して．
背景（筋状模様以外の部分）の色と筋状模様の色が対照
的ｆこ調和のとれた美麗な着色筋状模様を形或する方法
である。Yet another method according to the present invention. Before the generation of the striped pattern due to etching I. After anodizing aluminum in a known inorganic acid or an aqueous solution containing an organic acid. For colorless oxide films, anodization treatment (electrolytic coloring method) is performed in an electrolytic bath containing an organic acid. After forming a primary colored oxide film by alternating current electrolytic treatment in a bath containing metal salts (electrolytic coloring method) or 11 immersion coloring treatment 1. Using the method described above, the colored oxide film is partially etched in the vertical direction to create a streaky pattern. After that, a secondary colored film is formed on the striped pattern using electrolytic coloring or anodizing followed by electrolytic coloring.
This method creates a harmonious and beautiful colored streak pattern in which the color of the background (parts other than the streak pattern) and the color of the streak pattern contrast.
本発明の方法についで詳しく説明すると．まずアルミニ
ウム被処理物を常法に従い脱脂．エッチングおよび中和
処理した後．無機酸または有機酸の水溶液浴中にて陽極
酸化受膜処理を施し．その後前記特定化合物を１種また
は２種以上含有する水溶液をｐＨ １〜６の範囲に調整
した電解浴中に浸漬し．適当な対極．例えばカーボンな
どを用いて陽極とし．被処理物を蔭極として直流電解処
理を施すことにより．上下方向に筋状｛こ陽極酸化皮膜
を蝕刻し．筋模様を生戒させるものである。The method of the present invention will be explained in detail. First, the aluminum object to be treated is degreased using the conventional method. After etching and neutralization. Anodic oxidation film treatment is performed in an aqueous solution bath of inorganic or organic acids. Thereafter, an aqueous solution containing one or more of the specific compounds was immersed in an electrolytic bath whose pH was adjusted to a range of 1 to 6. A suitable counterpoint. For example, use carbon as an anode. By performing DC electrolytic treatment with the object being treated as a negative pole. Streaks in the vertical direction {this anodic oxide film is etched away. This is a reminder of the striped pattern.
前記特定化合物．すなわちリン酸三ナトリウム．リン酸
（→カリウム．硫酸カリウム．硫酸リチウム．ケイ酸カ
リウム．炭酸ナトリウム．硼酸ナトリウム．メタリン酸
カリウム．ビロリン酸ナトリウム．水酸化ナトリウム．
酒石酸カリウム．酒石酸ナトリウム．酢酸カリウム．シ
ュウ酸ナトリウム．フタル酸ナトリウム．クエン酸ナト
リウム．スルフアミン酸ナトリウムの１種あるいは２種
以上を含有する溶液中でアルミニウムを電解処理して筋
模様を生或する条件としては．電解液中の上記化合物の
濃度が低すぎると電流の流れが悪くなり．模様の生或が
不充分となり．逆に高すぎても好ましくなく．また．特
にｐＨは１〜６の範囲に調整することが必要であり．こ
の範囲を外れると筋模様の形戊が困難となる。Said specific compound. That is, trisodium phosphate. Phosphoric acid (→ Potassium. Potassium sulfate. Lithium sulfate. Potassium silicate. Sodium carbonate. Sodium borate. Potassium metaphosphate. Sodium birophosphate. Sodium hydroxide.
Potassium tartrate. Sodium tartrate. Potassium acetate. Sodium oxalate. Sodium phthalate. Sodium citrate. The conditions for producing a striped pattern by electrolytically treating aluminum in a solution containing one or more sodium sulfamates are as follows. If the concentration of the above compounds in the electrolyte is too low, the flow of current will be poor. The texture of the pattern is insufficient. On the other hand, it is not desirable if it is too high. Also. In particular, it is necessary to adjust the pH to a range of 1 to 6. Outside this range, it becomes difficult to shape the striped pattern.
筋模様生成のための処理条件を列記すると下記のとおり
である。The processing conditions for generating a striped pattern are listed below.
（１）前記化合物の濃度範囲：
０．１ 〜５０９７ｅ，好ましくハ０．１〜２０Ｖ４（
１１）溶液のｐＨ範囲：
ｐＨ１〜６．好ましくはｐＨ２〜４
（ｉｉｉ） 電圧範囲：
５〜８０■．好ましくは２０〜５０Ｖ
（イ）液温範囲：
１０〜５０°Ｃ．好ましくは２０〜３０°Ｃ■）処理時
間範囲：
２〜２０分．好ましくは５〜１５分
なお．上記各種の処理条件を種々変えることにより．長
短．広狭などの任意の筋模様に調節することが町能であ
る。(1) Concentration range of the compound: 0.1 to 5097e, preferably 0.1 to 20V4 (
11) pH range of solution: pH 1-6. Preferably pH 2-4 (iii) Voltage range: 5-80■. Preferably 20-50V (a) Liquid temperature range: 10-50°C. Preferably at 20 to 30°C ■) Processing time range: 2 to 20 minutes. Preferably for 5 to 15 minutes. By varying the various processing conditions mentioned above. Long and short. In town Noh, it is possible to adjust the pattern to any desired width, such as wide and narrow.
−ヒ記の条件で直流電解処理して筋模様を生或した後．
これに電着塗装．浸漬塗装．スプレー塗装などによって
塗装を施して使用することもできるが．本発明の他の方
法によると．上記のようにしｒｄｔ刻状の筋模様を生成
した後．有機酸．例えばシュウ酸．マロン酸．クエン酸
．マレイン酸、酒石酸．スルホサリチル酸などを含有す
る電解浴中での陽極酸化処理による電解発色法あるいは
陽極酸化処理後ニッケル．クロム．コバルｌ−． 銅．
鉄．モリプテン．鉛．亜鉛などの金属塩を含有する電
解浴中の交流電解処理による電解着色法など公知の方法
により．筋模様部分に着色皮膜を形成し．耐蝕性．耐候
性などを兼ね備えた美麗な着色筋模様を形成するもので
ある。- After being subjected to DC electrolytic treatment under the conditions described in (h) to create a striped pattern.
Electrodeposition paint on this. Dip painting. It can also be used by applying a coating such as spray painting. According to another method of the invention. After generating the rdt-like striped pattern as described above. Organic acid. For example, oxalic acid. Malonic acid. citric acid. Maleic acid, tartaric acid. Electrolytic coloring method using anodization treatment in an electrolytic bath containing sulfosalicylic acid, or nickel after anodization treatment. chromium. Kobal l-. copper.
iron. Moripten. lead. By known methods such as electrolytic coloring using alternating current electrolytic treatment in an electrolytic bath containing metal salts such as zinc. A colored film is formed on the striped area. Corrosion resistance. It forms a beautiful colored streak pattern that is weather resistant.
さらに．本発明の別の方法では．筋模様形或の前段階の
陽極酸化皮膜処理の皮膜が無色皮膜の場合．陽極酸化皮
膜処理後に．前記した電解発色法あるいは電解着色法ま
たは浸漬着色により一次着色酸化皮膜を形戊し．この一
次着色酸化受膜を前記した方法により蝕刻して筋模様を
形或し．その後上記と同様に電解発色法もしくは電解着
色法により二次着色皮嘆を形成し．より一層耐食性．耐
候性などに優れた皮膜が得られると共１こ．背景（筋模
様以外の部分）の着色皮膜と筋模様部分の着色皮膜の色
が対照的に調和のとれた美麗な着色筋模様が形成される
。moreover. In another method of the present invention. If the film has a striped pattern or the previous anodized film is a colorless film. After anodic oxide film treatment. A primary colored oxide film is formed by the electrolytic coloring method, electrolytic coloring method, or immersion coloring described above. This primary colored oxidized film is etched using the method described above to form a striped pattern. Thereafter, a secondary colored skin layer is formed using the electrolytic coloring method or electrolytic coloring method in the same manner as above. Even more corrosion resistant. A film with excellent weather resistance etc. can be obtained and 1. The colors of the colored film on the background (other than the striped pattern) and the colored film on the striped pattern contrast to form a harmonious and beautiful colored striped pattern.
以上のように．本発明の方法によってアルミニウム押出
材などのアルミニウム材を処理した場合．模様形戊は陽
極酸化皮膜または着色酸化皮膜を電気化学的に蝕刻する
ことを特徴とするため．複雑な形状のアルミニウム加工
材にも容易に立体的な模様を形成でき．また従来の電気
化学的方法による模様形或方法よりも模様の付きまわり
性がよく．さらに筋状１こ蝕刻した部分だけに着色巳膜
を形或するため．アルミニウム表面に多色の模様付けが
町能であり．耐食性を兼ね備えた美麗な装飾模様を得る
ことができる。As above. When aluminum materials such as aluminum extrusions are treated by the method of the present invention. This is because the patterned pattern is characterized by electrochemically etching an anodic oxide film or a colored oxide film. Three-dimensional patterns can be easily formed on aluminum processed materials with complex shapes. In addition, the pattern coverage is better than that of conventional electrochemical methods. Furthermore, in order to form a colored scarlet membrane only on the part where the single stripe was etched. Multicolored patterns on the aluminum surface are a town noh art. A beautiful decorative pattern with corrosion resistance can be obtained.
さら１こ．アルミニウム押出材の表面処理においで行な
われる大スケール生産方式装置の中に組込んで行なうこ
とができるため．低い処理加工費で加工ができるなどの
利点がある。Sara1ko. This is because it can be incorporated into large-scale production equipment used for surface treatment of aluminum extrusion materials. It has the advantage of being able to be processed at low processing costs.
つぎ１こ．実施例を示して本発明の方法をざら番こ詳細
に説明するが．本発明が下記実施例１こ限定されるもの
でないことはもとよりである。Next one. The method of the present invention will be explained in detail with reference to examples. It goes without saying that the present invention is not limited to the following Example 1.
実施例 １
アルミニウム合金Ａ６０６３Ｓ材を常法により脱脂．エ
ッチング．中和．陽極酸化処理した後．リン酸三ナトリ
ウムｌｇ／ｌ水溶液をリン酸でｐＨ２．８に調整し浴温
２０℃１こ保ち．対極としてカーボンを用いて陽極とし
．被処理物を蔭極としで直流２０Ｖの電解処理を５分間
行なったところ．アルミニウム合金表面の陽極酸化皮膜
が部分的に蝕刻された凹状の筋模様が得られた。Example 1 Aluminum alloy A6063S material was degreased using a conventional method. etching. Neutralization. After anodizing. Adjust the pH of a lg/l trisodium phosphate aqueous solution to 2.8 with phosphoric acid and maintain the bath temperature at 20°C. Use carbon as the counter electrode and use it as an anode. Electrolytic treatment at 20 V DC was performed for 5 minutes with the object being treated as a negative electrode. A concave striped pattern in which the anodic oxide film on the surface of the aluminum alloy was partially etched was obtained.
ついで．これをスルホサリチル酸１００ｇ／ｅ一硫酸５
ｇ／ｅ混合水溶液浴中で４０Ｖで直流電解したところ，
陽極酸化皮膜の蝕刻された筋模様部だけが琥珀色【こ美
しく自然発色皮膜処理された着色筋模様が形成された。Next. Add this to sulfosalicylic acid 100g/e monosulfuric acid 5
When DC electrolysis was carried out at 40V in a g/e mixed aqueous solution bath,
Only the etched striped pattern of the anodized film is amber-colored [a beautiful colored striped pattern that has been treated with a naturally colored film] is formed.
比較例 １
実施例１と同一条件にで．陽極酸化皮膜処理が施されて
いない被処理物を蔭極として直流電解処理を行なったが
．筋模様は現出しなかった。Comparative Example 1 Under the same conditions as Example 1. Direct current electrolytic treatment was performed using the object to be treated, which had not been anodized, as the negative electrode. No streak pattern appeared.
比較例 ２
実施例１と同一条件にて．陽極酸化皮膜処理をした後の
被処理物を．交流で電解処理したが筋模様は現出しなか
った。Comparative Example 2 Under the same conditions as Example 1. The object to be treated after anodized film treatment. Although electrolytic treatment was performed using alternating current, no streaks appeared.
実施例 ２
アルミニウム合金Ａ６０６３Ｓ材を常法により脱脂．エ
ッチング．中和．陽極酸化皮膜処理した後．硫酸カリウ
ム２０ｇ／ｅ水溶液を硫酸でｐＨ４０｝こ調整し．浴温
を３０℃１こ保ち．対極にカーボンを用いて陽極とし．
被処理物を蔭極としで直流３０Ｖで電解処理を５分間行
なったところ．アルミニウム合金表面の陽極酸化皮膜の
みが蝕刻された凹状の筋模様が得られた。Example 2 Aluminum alloy A6063S material was degreased using a conventional method. etching. Neutralization. After anodized film treatment. A 20 g/e aqueous solution of potassium sulfate was adjusted to pH 40 with sulfuric acid. Keep the bath temperature at 30℃. Use carbon as the counter electrode and use it as an anode.
Electrolytic treatment was performed for 5 minutes at 30 V DC with the object being treated as a negative electrode. A concave striped pattern was obtained in which only the anodic oxide film on the surface of the aluminum alloy was etched.
ついで．これを３０ｇ／ｅシュウ酸浴中で４０Ｖで直流
電解したところ．皮膜の蝕刻された筋模様だけが淡黄色
に美しく自然発色した着色筋模様が形或された。Next. This was subjected to DC electrolysis at 40V in a 30g/e oxalic acid bath. Only the etched stripes on the film formed a naturally colored stripe pattern that was beautifully pale yellow.
実施例 ３
アルミニウム合金Ａ６０６３材を常法により脱脂．エッ
チング．中和．陽極酸化皮膜処理した後．過マンガン酸
カリウム溶液に硫酸を含有する無機塩浴中で電解着色し
，その後ビロリン酸ナトリウム５０ｇ／ｅ水溶液をリン
酸でｐＨ ３ ＋こ調整し．浴温２０℃に保ち．対極に
カーボンを用いて陽極とし．被処理物を蔭極として直流
４０Ｖで電解処理を５分間行なったところ．アルミニウ
ム合金表面の黄色に着色された酸化皮膜上に蝕刻された
凹状の筋模様が得られた。Example 3 Aluminum alloy A6063 material was degreased using a conventional method. etching. Neutralization. After anodized film treatment. A potassium permanganate solution was electrolytically colored in an inorganic salt bath containing sulfuric acid, and then a 50 g/e aqueous solution of sodium birophosphate was adjusted to pH 3 + with phosphoric acid. Keep the bath temperature at 20℃. Use carbon as the counter electrode and use it as an anode. Electrolytic treatment was performed for 5 minutes at 40 V DC with the object being treated as a negative electrode. A concave striped pattern etched onto the yellow-colored oxide film on the aluminum alloy surface was obtained.
ついで．これをスルホサリチル酸１００ｇ／ｅ一硫酸５
ｇ／ｅ混合浴で直流４０Ｖで電解すると．琥珀色に自然
発色した筋模様と背景（筋以外の面）の黄色が対照的に
調和のとれた美麗な筋模様入り着色皮膜がアルミニウム
表面に形或された。Next. Add this to sulfosalicylic acid 100g/e monosulfuric acid 5
When electrolyzed at 40V DC in a g/e mixed bath. A beautiful colored film with streaks was formed on the aluminum surface, with a harmonious contrast between the naturally colored amber streaks and the yellow background (surface other than the streaks).
実施例 ４
アルミニウム合金Ａ６０６３Ｓ材を常法｛こよりエッチ
ング．中和。Example 4 Aluminum alloy A6063S material was etched using a conventional method. Neutralization.
陽極酸化皮膜処理した後．水酸化ナトリウムｏ．ｔｇ７
ｇ水溶液を硫酸でｐＨ２０に調整し．浴温３０℃に保ち
．対極にカーボンを用いて陽極とし．被処理物を蔭極と
しで直流２０■で５分間電解処理を行なったところ．ア
ルミニウム合金表面の陽極酸化咬膜のみが蝕刻された凹
状の筋模様が得られた。After anodized film treatment. Sodium hydroxide o. tg7
g Adjust the aqueous solution to pH 20 with sulfuric acid. Keep the bath temperature at 30℃. Use carbon as the counter electrode and use it as an anode. Electrolytic treatment was performed for 5 minutes at 20 μm of DC with the object being treated as a negative electrode. A concave striped pattern was obtained in which only the anodized masticula on the aluminum alloy surface was etched.
ついで．これを硫酸ニッケルを含有する無機塩浴中で電
解着色した後．スルホサリチル酸１００ｇ／６一硫酸５
ｇ／４混合浴で４０Ｖで直流電解すると．ブロンズ色に
電解着色された背景（筋以外の面）と琥珀色に自然発色
した筋模様の色が対照的に調和のとれた美麗な筋模様入
り着色皮膜がアルミニウム表面に形或された。Next. This was electrolytically colored in an inorganic salt bath containing nickel sulfate. Sulfosalicylic acid 100g/6 monosulfuric acid 5
When DC electrolyzed at 40V in a g/4 mixed bath. A beautiful colored film with streaks was formed on the aluminum surface, with a harmonious contrast between the bronze electrolytically colored background (the surface other than the streaks) and the naturally colored amber streaks.
実施例 ５
アルミニウム合金Ａ６０６３Ｓ材を常法により脱脂．エ
ッチング．中和処理した後， １ｏｏｇ７ｅスルホサ
リチル酸−５ｇ＃硫酸混合浴中で３０分間４０Ｖで直流
電解して琥珀色に自然発色させた。Example 5 Aluminum alloy A6063S material was degreased using a conventional method. etching. After neutralization, direct current electrolysis was carried out at 40 V for 30 minutes in a sulfuric acid mixed bath containing 100 g of 7e sulfosalicylic acid to naturally develop an amber color.
その後．酒石酸ナトリウム５９７ｅ水溶液を硫酸でｐＨ
３に調整し．浴温３０℃に保ち．対極にカーボンを用い
て陽極とし，被処理物を蔭極として直流５０Ｖで２分間
電解処理を行なったところ，アルミニウム合金表面の自
然発色皮膜のみが蝕刻された凹状の筋模様が得られた。after that. pH of sodium tartrate 597e aqueous solution with sulfuric acid
Adjust to 3. Keep the bath temperature at 30℃. When electrolytic treatment was carried out at 50 V DC for 2 minutes using carbon as the anode and the object to be treated as the negative electrode, a concave striped pattern was obtained in which only the naturally colored film on the surface of the aluminum alloy was etched.
ついで．これを１８０ｇ／６硫酸浴中で直流１５Ｖで陽
極酸化処理した後．過マンガン酸カリウム溶液に硫酸を
含有する無機塩浴中で電解着色したところ．黄色と琥珀
色の濃淡の差がある調和のとれた美麗な筋模様入り着色
皮膜がアルミニウム表面１こ形威された。Next. This was anodized at 15 V DC in a 180 g/6 sulfuric acid bath. Electrolytic coloring in an inorganic salt bath containing sulfuric acid in potassium permanganate solution. A colored film with a harmonious and beautiful streak pattern with different shades of yellow and amber was applied to the aluminum surface.
Claims (1)
機酸または有機酸の水溶液中にて陽極酸化皮膜処理を施
した後，リン酸三ナトリウム．リン酸（→カリウム．硫
酸カリウム．硫酸リチウム、ケイ酸カリウム，炭酸ナト
リウム．硼酸ナトリウム．メクリン酸カリウム．ビロリ
ン酸ナトリウム．水酸化ナトリウム．酒石酸カリウム．
酒石酸ナトリウム．酢酸カリウム．シュウ酸ナトリウム
．フタル酸ナトリウム．クエン酸ナトリウム．スルファ
ミン酸ナトリウムの１種以上を含有する電解浴中に浸漬
し，上記アルミニウムまたはアルミニウム合金を蔭極と
して直流もしくはこれと同等の効果をもつ電流波形によ
り電解処理することによって陽極酸化皮膜を部分的に上
下方向に触刻して筋状模様を生或させることを特徴とす
るアルミニウムまたはアルミニウム合金の表面処理方法
。 ２ 電解浴のｐＨが１〜６の範囲にある特許請求の範囲
第１項に記載の方法。 ３ 前記電解浴の濃度がｏ．ｉ〜５０９７ｅである特許
請求の範囲第１項または第２項Ｉこ記載の方法。 ４ アルミニウムまたはアルミニウム合金を．公知の無
機酸または有機酸の水溶液中にて陽極酸化皮膜処理を施
した後．リン酸三ナトリウム．リン酸（ニ）カリウム．
硫酸カリウム．硫酸リチウム．ケイ酸カリウム．炭酸ナ
トリウム．硼酸ナトリウム．メタリン酸カリウム．ビロ
リン酸ナトリウム．水酸化ナトリウム．酒石酸カリウム
．酒石酸ナトリウム．酢酸カリウム．シュウ酸ナトリウ
ム．フタル酸ナトリウム．クエン酸ナトリウム．スルフ
ァミン酸ナｌ− ＩＪウムの１種以上を含有する電解浴
中に浸漬し．上記アルミニウムまたはアルミニウム合金
を蔭極として直流もしくはこれと同等の効果をもつ電流
波形ｔこより電解処理すること１こよって．陽極酸化皮
膜を部分的に上下方向１こ触刻して筋状模様を生或させ
た後．筋状模様部分に電解法により着色皮膜を形威して
着色筋状模様を形戒することを特徴とするアルミニウム
またはアルミニウム合金の表面処理方法，。 ５ 電解法１こよる着色皮膜形或を．有機酸を含有する
電解浴中での陽極酸化処理または筋状部分を陽極酸化処
理後金属塩を含有する電解浴中での電解着色処理により
行なう特許請求の範囲第４項に記載の方法。 ６ 電解浴のｐＨが１−６の範囲１こある特許請求の範
囲第４項または第５項１こ記載の方法。 ７ 前記電解浴の濃度が０．１〜５０ｇ／ｅである特許
請求の範囲第６項ｌこ記載の方法。 ８ アルミニウムまたはアルミニウム合金を．公知の無
機酸またはそれに有機酸を添加した水溶液中で陽極酸化
皮膜を施し．つぎに一次着色酸化皮膜を形或した後．リ
ン酸三ナトリウム．リン酸（ヘ）カリウム．硫酸カリウ
ム．硫酸リチウム．ケイ酸カリウム，炭酸ナトリウム．
硼酸ナトリウム．メクリン酸カリウム．ビロリン酸ナト
リウム．水酸化ナトリウム，酒石酸カリウム．酒石酸ナ
トリウム，酢酸カリウム．シュウ酸ナトリウム．フタル
酸ナトリウム．クエン酸ナトリウム．スルファミン酸ナ
ｌ− ＩＪウムの１種以上を含有する電解浴中｛こ浸漬
し．上記アルミニウムまたはアルミニウム合金を蔭極と
しで直流もしくはこれと同等の効果をもつ電流波形によ
り電解処理することによって着色酸化皮膜を部分的に上
下方向１こ蝕刻して筋状模様を生成させた後．筋状模様
部分に電解法により二次着色皮膜を形成して筋状の着色
模様を形戊することを特徴とするアルミニウムまたはア
ルミニウム合金の表面処理方法。 ９ 一次着色酸化皮膜の形成を．有機酸を含有する電解
浴中での陽極性酸化処理．金属塩を含有する電解浴中で
の電解着色処理または浸漬着色１こよって行なう特許請
求の範囲第８項に記載の方法。 １０筋状模様部分への電解法による二次着色皮膜の形成
を．有機酸を含有する電解浴中での陽極酸化処理または
筋状部分を陽極酸化処理後金属塩を含有する電解浴中で
の電解着色処理により行なう特許請求の範囲第８項に記
載の方法。 １１ 電解浴のｐＨが１〜６の範囲ｌこある特許請求の
範囲第８項ないし第１０項のいずれかに記載の方法。 １２前記電解浴の濃度が０．１〜５０ｇ／ｅである特許
請求の範囲第１１項に記載の方法。[Claims] 1. Aluminum or aluminum alloy. After anodizing in an aqueous solution of a known inorganic or organic acid, trisodium phosphate. Phosphoric acid (→ Potassium. Potassium sulfate. Lithium sulfate, potassium silicate, sodium carbonate. Sodium borate. Potassium meclate. Sodium birophosphate. Sodium hydroxide. Potassium tartrate.
Sodium tartrate. Potassium acetate. Sodium oxalate. Sodium phthalate. Sodium citrate. The anodic oxide film is partially removed by immersing it in an electrolytic bath containing one or more types of sodium sulfamate and electrolytically treating it with direct current or a current waveform with an equivalent effect using the aluminum or aluminum alloy as the negative electrode. A method for surface treatment of aluminum or aluminum alloy, characterized in that a striped pattern is created by engraving in the vertical direction. 2. The method according to claim 1, wherein the pH of the electrolytic bath is in the range of 1 to 6. 3. The concentration of the electrolytic bath is o. 5097e. The method of claim 1 or 2 I. 4 Aluminum or aluminum alloy. After anodic oxidation film treatment in a known aqueous solution of inorganic or organic acid. Trisodium phosphate. (di)potassium phosphate.
Potassium sulfate. Lithium sulfate. Potassium silicate. sodium carbonate. Sodium borate. Potassium metaphosphate. Sodium birophosphate. Sodium hydroxide. Potassium tartrate. Sodium tartrate. Potassium acetate. Sodium oxalate. Sodium phthalate. Sodium citrate. Immersion in an electrolytic bath containing one or more types of sodium sulfamate. By using the above aluminum or aluminum alloy as a negative electrode, electrolytic treatment is performed using direct current or a current waveform having an equivalent effect. After partially etching the anodized film in the vertical direction to create a striped pattern. A method for surface treatment of aluminum or aluminum alloy, characterized in that a colored film is formed on the streaky pattern portion by electrolytic method to form a colored streaky pattern. 5 Colored film form based on electrolytic method 1. 5. The method according to claim 4, wherein the anodizing treatment is carried out in an electrolytic bath containing an organic acid or the striped portion is subjected to an electrolytic coloring treatment in an electrolytic bath containing a metal salt after the anodizing treatment. 6. The method according to claim 4 or 5, wherein the pH of the electrolytic bath is in the range of 1 to 6. 7. The method according to claim 6, wherein the electrolytic bath has a concentration of 0.1 to 50 g/e. 8 Aluminum or aluminum alloy. An anodized film is applied in an aqueous solution containing a known inorganic acid or an organic acid. Next, after forming a primary colored oxide film. Trisodium phosphate. Potassium(he)phosphate. Potassium sulfate. Lithium sulfate. Potassium silicate, sodium carbonate.
Sodium borate. Potassium meclate. Sodium birophosphate. Sodium hydroxide, potassium tartrate. Sodium tartrate, potassium acetate. Sodium oxalate. Sodium phthalate. Sodium citrate. Sodium sulfamate was immersed in an electrolytic bath containing one or more types of sodium sulfamate. After electrolytically treating the aluminum or aluminum alloy as a negative electrode with a direct current or a current waveform having an equivalent effect, the colored oxide film is partially etched in the vertical direction to form a striped pattern. 1. A method for surface treatment of aluminum or aluminum alloy, which comprises forming a secondary colored film on the striped pattern portion by an electrolytic method to form a striped colored pattern. 9 Formation of primary colored oxide film. Anodic oxidation treatment in an electrolytic bath containing organic acids. 9. The method according to claim 8, which is carried out by electrolytic coloring treatment or immersion coloring 1 in an electrolytic bath containing a metal salt. 10 Formation of a secondary colored film on the striped pattern area by electrolytic method. 9. The method according to claim 8, wherein the anodizing treatment is carried out in an electrolytic bath containing an organic acid, or the striped portion is subjected to an electrolytic coloring treatment in an electrolytic bath containing a metal salt after the anodizing treatment. 11. The method according to any one of claims 8 to 10, wherein the pH of the electrolytic bath is in the range of 1 to 6. 12. The method according to claim 11, wherein the electrolytic bath has a concentration of 0.1 to 50 g/e.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13449078A JPS5847473B2 (en) | 1978-11-02 | 1978-11-02 | Surface treatment method for aluminum or aluminum alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13449078A JPS5847473B2 (en) | 1978-11-02 | 1978-11-02 | Surface treatment method for aluminum or aluminum alloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5562196A JPS5562196A (en) | 1980-05-10 |
| JPS5847473B2 true JPS5847473B2 (en) | 1983-10-22 |
Family
ID=15129534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13449078A Expired JPS5847473B2 (en) | 1978-11-02 | 1978-11-02 | Surface treatment method for aluminum or aluminum alloy |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5847473B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0529819Y2 (en) * | 1988-11-11 | 1993-07-29 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6014838B2 (en) * | 1980-09-30 | 1985-04-16 | ワイケイケイ株式会社 | Method of forming colored streaks on aluminum surface |
-
1978
- 1978-11-02 JP JP13449078A patent/JPS5847473B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0529819Y2 (en) * | 1988-11-11 | 1993-07-29 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5562196A (en) | 1980-05-10 |
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