JPH06299394A - Electrolytic color developing method for stainless steel - Google Patents
Electrolytic color developing method for stainless steelInfo
- Publication number
- JPH06299394A JPH06299394A JP8604691A JP8604691A JPH06299394A JP H06299394 A JPH06299394 A JP H06299394A JP 8604691 A JP8604691 A JP 8604691A JP 8604691 A JP8604691 A JP 8604691A JP H06299394 A JPH06299394 A JP H06299394A
- Authority
- JP
- Japan
- Prior art keywords
- stainless steel
- aqueous solution
- water
- electrolytic
- switch
- 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
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明はステンレスの電解発色
法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for electrolytic coloring of stainless steel.
【０００２】[0002]
【従来の技術】従来、ステンレスに発色を行う方法とし
ては、高濃度のクロム酸と硫酸とを含む高温の水溶液中
にステンレスを浸漬してその表面に酸化皮膜を形成する
ことによって発色する方法がある。2. Description of the Related Art Conventionally, as a method of coloring stainless steel, there is a method of coloring stainless steel by immersing the stainless steel in a high temperature aqueous solution containing a high concentration of chromic acid and sulfuric acid to form an oxide film on the surface. is there.
【０００３】また、別の方法としては、特開平１−２０
５０９５号公報に開示されているように、水酸化ナトリ
ウムあるいは水酸化カリウムの少なくとも一方を含む水
溶液中でステンレスに陽極電解処理および陰極電解処理
を交互に繰り返して行ってその表面に酸化皮膜を形成す
ることによって発色する方法がある。Another method is disclosed in Japanese Patent Laid-Open No. 1-20.
As disclosed in Japanese Patent No. 5095, stainless steel is subjected to anodic electrolysis treatment and cathodic electrolysis treatment alternately in an aqueous solution containing at least one of sodium hydroxide and potassium hydroxide to form an oxide film on the surface thereof. There is a method to develop the color.
【０００４】[0004]
【発明が解決しようとする課題】前者の技術による発色
法では、高濃度の６価クロムを含む有害な水溶液を用い
るので、公害処理に要する設備費や処理費に大きな費用
がかかる。また、この発色法では、非常に腐食性が強い
薬品を用いるため、生産設備の損耗が大きい。In the color-developing method using the former technique, a harmful aqueous solution containing a high concentration of hexavalent chromium is used, so that the facility cost and the processing cost required for the pollution control are large. Further, in this coloring method, since a chemical having a very strong corrosive property is used, the production equipment is largely worn.
【０００５】そこで、本発明者は、害が少なく設備損耗
が小さい発色法として、特開平１−２０５０９５号に開
示されている後者の発色法を提案した。この発色法は、
アルカリ性を呈する水溶液を用いるため、設備費および
廃水処理費が廉価ですみ、非常に経済的な発色法であ
る。しかし、この発色法では、明るく鮮やかな色が得ら
れる反面、黒色を含む濃いあるいは暗い色調が得られな
い欠点があった。Therefore, the present inventor has proposed the latter color-developing method disclosed in Japanese Patent Laid-Open No. 1-205095 as a color-developing method with less harm and less equipment wear. This coloring method
Since an aqueous solution that exhibits alkalinity is used, the facility cost and wastewater treatment cost are low, and this is a very economical color development method. However, this coloring method has a drawback in that a bright and vivid color can be obtained, but a dark or dark color tone including black cannot be obtained.
【０００６】それゆえに、この発明の主たる目的は、害
の少ない水溶液を用いて、黒色を含む濃いあるいは暗い
色調を得ることができる、ステンレスの電解発色法を提
供することである。Therefore, a main object of the present invention is to provide an electrolytic coloring method for stainless steel, which can obtain a dark or dark color tone including black by using an aqueous solution with little harm.
【０００７】[0007]
【課題を解決するための手段】この発明は、ステンレス
の表面に酸化皮膜を形成することによって発色を行うス
テンレスの電解発色法であって、水溶性染料を添加した
アルカリ性を呈する水溶液を準備する工程と、この水溶
液中でステンレスに陽極電解処理および陰極電解処理を
交互に繰り返して行う工程とを含む、ステンレスの電解
発色法である。また、上記の陽極電解処理および陰極電
解処理における電流密度は、それぞれ０．１〜１０Ａ／
ｄｍ2 であることが好ましい。さらに、上記の水溶液中
における水溶性染料の濃度は、０．１〜１０重量％であ
ることが好ましい。The present invention is an electrolytic color development method for stainless steel in which color is formed by forming an oxide film on the surface of stainless steel, and a step of preparing an alkaline aqueous solution containing a water-soluble dye. And a step of alternately performing anodic electrolysis treatment and cathodic electrolysis treatment on stainless steel in this aqueous solution. The current densities in the anodic electrolysis treatment and the cathodic electrolysis treatment are each 0.1 to 10 A /
It is preferably dm 2 . Further, the concentration of the water-soluble dye in the above aqueous solution is preferably 0.1 to 10% by weight.
【０００８】[0008]
【作用】アルカリ性の水溶液中でステンレスに陽極電解
処理および陰極電解処理を交互に繰り返して行うことに
よって、ステンレスの表面に酸化皮膜が形成される。こ
の場合、アルカリ性の水溶液に水溶性染料が添加されて
いるので、酸化皮膜中に染料が包含される。そのため、
黒色を含む濃いあるいは暗い色調が得られる。The oxide film is formed on the surface of stainless steel by alternately repeating anodic electrolysis treatment and cathodic electrolysis treatment on stainless steel in an alkaline aqueous solution. In this case, since the water-soluble dye is added to the alkaline aqueous solution, the dye is included in the oxide film. for that reason,
Dark or dark tones including black are obtained.
【０００９】[0009]
【発明の効果】この発明によれば、黒色を含む濃いある
いは暗い色調を得ることができる、ステンレスの電解発
色法が得られる。しかも、この発明にかかるステンレス
の電解発色法は、水溶液による害が少なく、設備費や廃
水処理費が廉価ですむため、経済的にも有利である。According to the present invention, there is provided an electrolytic color development method for stainless steel capable of obtaining a dark or dark color tone including black. In addition, the electrolytic color development method for stainless steel according to the present invention is economically advantageous because there is little damage caused by the aqueous solution and the equipment cost and waste water treatment cost are low.
【００１０】この発明の上述の目的，その他の目的，特
徴および利点は、図面を参照して行う以下の実施例の詳
細な説明から一層明らかとなろう。The above-mentioned objects, other objects, features and advantages of the present invention will become more apparent from the detailed description of the embodiments below with reference to the drawings.
【００１１】[0011]
【実施例】図１および図２はこの発明を実施するための
電解装置の一例を示す図解図であり、図２は図１に示す
電解装置の浴およびその周辺部分を示す図解図である。1 and 2 are schematic views showing an example of an electrolysis apparatus for carrying out the present invention, and FIG. 2 is a schematic view showing a bath and its peripheral portion of the electrolysis apparatus shown in FIG.
【００１２】この電解装置１０は、定電流電源１２を含
む。この定電流電源１２は、その入力端にたとえば交流
１００ないし２００Ｖの電源を接続することによって、
その出力端から任意の定電流が出力される。なお、この
定電流電源１２では、たとえば０〜１５．０Ａの任意の
電流値の直流定電流を出力することができ、たとえば電
流通過面積が１ｄｍ2 の導体に、たとえば０〜１５．０
Ａ／ｄｍ2 の電流密度の電流を流すことができる。The electrolysis apparatus 10 includes a constant current power supply 12. The constant current power supply 12 is connected to a power supply of 100 to 200 V AC at its input end,
An arbitrary constant current is output from the output terminal. The constant current power supply 12 can output a DC constant current having an arbitrary current value of, for example, 0 to 15.0 A, and, for example, a conductor having a current passage area of 1 dm 2 can output, for example, 0 to 15.0.
A current having a current density of A / dm 2 can be passed.
【００１３】定電流電源１２の出力端は、極性転換スイ
ッチ１４の入力端に接続される。この極性転換スイッチ
１４は、その入力端に入力された電流を、任意な時間経
過とともにその極性を切り換えて、その出力端から出力
するためのものである。したがって、この極性転換スイ
ッチ１４の入力端に入力された定電流は、その出力端か
ら、任意の時間経過にともなって極性が切り換えられる
電流として出力される。The output terminal of the constant current power supply 12 is connected to the input terminal of the polarity conversion switch 14. The polarity changing switch 14 is for switching the polarity of the current input to its input end with the passage of arbitrary time and outputting it from its output end. Therefore, the constant current input to the input end of the polarity changing switch 14 is output from the output end as a current whose polarity is switched with the lapse of arbitrary time.
【００１４】極性転換スイッチ１４の一方の出力端は、
直列接続されたたとえばデジタル表示やアナログ表示の
電流計１６および銅製の接続具１８ａを介して、ステン
レス板２０に接続される。このステンレス板２０として
は、たとえばＳＵＳ３０４ステンレス，ＳＵＳ３１６ス
テンレス，ＳＵＳ４３０ステンレスなどのステンレスが
用いられる。One output end of the polarity changing switch 14 is
It is connected to the stainless steel plate 20 via, for example, an ammeter 16 for digital display or analog display and a connector 18a made of copper which are connected in series. As the stainless plate 20, for example, stainless steel such as SUS304 stainless steel, SUS316 stainless steel, and SUS430 stainless steel is used.
【００１５】一方、極性転換スイッチ１４の他方の出力
端は、銅製の接続具１８ｂを介して、ステンレス板２０
の対極としての対極板２２に接続される。この対極板２
２は、この実施例では白金を被覆したチタンで形成され
ているが、鉛，鉄，ステンレスなどの他の導電性金属で
形成されてもよい。On the other hand, the other output end of the polarity changing switch 14 is connected to the stainless steel plate 20 through a copper connector 18b.
Is connected to the counter electrode plate 22 as the counter electrode. This counter plate 2
2 is made of titanium coated with platinum in this embodiment, but may be made of other conductive metals such as lead, iron, and stainless.
【００１６】これらのステンレス板２０および対極板２
２は、浴２４内の水溶液２６中で、所定間隔を隔てて対
向するように配置される。These stainless plate 20 and counter electrode plate 2
2 are placed in an aqueous solution 26 in a bath 24 so as to face each other with a predetermined interval.
【００１７】浴２４内に溜められた水溶液２６は、水溶
性染料を添加したアルカリ性を呈する水溶液が用いられ
る。この場合、水溶性染料としては、メチレンブルー，
メチレングリーンなどのメチレン系の染料やローダミン
Ｂなどのカチオン系の染料などが用いられる。また、水
溶液がアルカリ性を呈するするためには、水溶液中に、
たとえばりん酸３ナトリウム，水酸化ナトリウム，水酸
化カリウムなどのベースが溶解される。As the aqueous solution 26 stored in the bath 24, an alkaline aqueous solution containing a water-soluble dye is used. In this case, as the water-soluble dye, methylene blue,
Methylene-based dyes such as methylene green and cationic dyes such as rhodamine B are used. Further, in order for the aqueous solution to be alkaline,
For example, bases such as trisodium phosphate, sodium hydroxide and potassium hydroxide are dissolved.
【００１８】そして、上述した水溶液２６中で、ステン
レス板２０に、陽極電解処理および陰極電解処理を交互
に繰り返して行うことによって、ステンレス板２０の表
面に酸化皮膜が形成され、この酸化皮膜によってステン
レス板２０の表面が発色される。By alternately repeating the anodic electrolysis treatment and the cathodic electrolysis treatment on the stainless steel plate 20 in the above-mentioned aqueous solution 26, an oxide film is formed on the surface of the stainless steel plate 20, and the stainless steel plate 20 is oxidized by this oxide film. The surface of the plate 20 is colored.
【００１９】なお、この発明における水溶液２６として
は、水溶性染料の濃度が０．１〜１０重量％の範囲にあ
ることが好ましい。すなわち、水溶液２６中の水溶性染
料の濃度を０．１重量％未満の濃度にすると、酸化皮膜
中に包含される染料が少なくなり、黒色を含む濃いある
いは暗い色調が得られない場合がある。また、その濃度
を１０重量％を超える濃度にすると、電流の流れにむら
が生じやすく色むらの原因となるので好ましくない。The aqueous solution 26 in the present invention preferably has a water-soluble dye concentration of 0.1 to 10% by weight. That is, when the concentration of the water-soluble dye in the aqueous solution 26 is less than 0.1% by weight, the amount of the dye contained in the oxide film decreases, and dark or dark color tone including black may not be obtained. Further, if the concentration is more than 10% by weight, unevenness is liable to occur in the flow of current, which causes color unevenness, which is not preferable.
【００２０】また、電解処理のための電流密度は、ステ
ンレス板２０において０．１〜１０Ａ／ｄｍ2 の範囲が
好ましい。すなわち、その電流密度を０．１Ａ／ｄｍ2
未満にすると、酸化皮膜の生成が著しく遅くなるのと同
時に酸化皮膜中に包含される染料が少なくなり、黒色を
含む濃いあるいは暗い色調が得られにくくなる。また、
その電流密度を１０Ａ／ｄｍ2 を超える値にすると、発
生する気泡のために酸化皮膜が剥離することがあって、
均一な酸化皮膜にならないことがある。The current density for electrolytic treatment is preferably 0.1 to 10 A / dm 2 in the stainless steel plate 20. That is, the current density is set to 0.1 A / dm 2
When the amount is less than the above, the generation of the oxide film is significantly slowed down, and at the same time, the amount of the dye contained in the oxide film is decreased and it becomes difficult to obtain a dark or dark color tone including black. Also,
If the current density is set to a value exceeding 10 A / dm 2 , the oxide film may peel off due to bubbles generated,
The oxide film may not be uniform.
【００２１】実験例１ まず、ベースとしてりん酸３ナトリウムを１０重量％含
みかつ水溶性染料としてメチレンブルーを表１に示すよ
うに０．０５重量％，０．１重量％あるいは０．５重量
％添加しまたは添加しない、ｐＨ１３以上のアルカリ性
を呈する水溶液を準備した。Experimental Example 1 First, trisodium phosphate was added as a base in an amount of 10% by weight, and methylene blue was added as a water-soluble dye in an amount of 0.05% by weight, 0.1% by weight or 0.5% by weight as shown in Table 1. An alkaline aqueous solution having a pH of 13 or more was prepared with or without addition.
【００２２】[0022]
【表１】 [Table 1]
【００２３】これらの水溶液を４０℃に保ち、その中で
厚さ０．０８ｍｍ，縦５０ｍｍ，横５０ｍｍのＳＵＳ３
０４ＢＡ仕上げステンレス箔に、表１に示すそれぞれの
条件で、陽極電解処理と陰極電解処理とを１０秒ずつ交
互に繰り返して処理をして、それらのステンレス箔の表
面に酸化皮膜を形成した。These aqueous solutions were kept at 40 ° C., in which SUS3 having a thickness of 0.08 mm, a length of 50 mm and a width of 50 mm was used.
The 04BA-finished stainless steel foil was subjected to treatments by alternately repeating anodic electrolysis treatment and cathodic electrolysis treatment for 10 seconds under the respective conditions shown in Table 1 to form an oxide film on the surface of these stainless steel foils.
【００２４】そして、それらのステンレス箔の表面の酸
化皮膜の色調を調べ、それらの色調を表１に示した。さ
らに、それらの色調を判定し、表１に、黒色を含む濃い
あるいは暗い色調のものを「○」で、それ以外のものを
「×」で示した。Then, the color tone of the oxide film on the surface of the stainless steel foil was examined, and those color tones are shown in Table 1. Further, their color tones were judged, and in Table 1, those having a dark or dark tone including black are shown by "O", and the other ones are shown by "X".
【００２５】この実験結果より、水溶液に水溶性染料で
あるメチレンブルーを０．１重量％以上添加しかつ電解
処理の電流密度を０．１Ａ／ｄｍ2 以上にした場合、黒
色を含む濃いあるいは暗い色調が得られることがわか
る。From the results of this experiment, when 0.1% by weight or more of the water-soluble dye methylene blue was added to the aqueous solution and the current density of the electrolytic treatment was set to 0.1 A / dm 2 or more, dark or dark color tone including black was obtained. It can be seen that
【００２６】実験例２ この実験例では、実験例１と同様にベースとしてりん酸
３ナトリウムを１０重量％含むｐＨ１３以上のアルカリ
性を呈する水溶液と、ベースとしてりん酸１ナトリウム
を１０重量％含むｐＨ２の酸性を呈する水溶液との２種
類の水溶液を準備した。また、これらの水溶液には、表
２に示すように、水溶性染料としてメチレングリーンを
０．０５重量％あるいは１重量％添加した。Experimental Example 2 In this Experimental Example, as in Experimental Example 1, an alkaline aqueous solution containing 10% by weight of trisodium phosphate as a base and having a pH of 13 or more, and a base containing 10% by weight of monosodium phosphate as a pH 2 were used. Two types of aqueous solutions were prepared, one that was acidic and the other was aqueous. Further, as shown in Table 2, 0.05% by weight or 1% by weight of methylene green as a water-soluble dye was added to these aqueous solutions.
【００２７】[0027]
【表２】 [Table 2]
【００２８】そして、これらの水溶液中で、実験例１と
同様のステンレス箔を、表２に示すそれぞれの電解条件
で、陽極電解処理と陰極電解処理とを１０秒ずつ交互に
繰り返して処理をして、それらのステンレス箔の表面に
酸化皮膜を形成した。Then, in these aqueous solutions, the same stainless steel foil as in Experimental Example 1 was treated under the respective electrolysis conditions shown in Table 2 by alternately repeating anodic electrolysis treatment and cathodic electrolysis treatment for 10 seconds each. Then, an oxide film was formed on the surface of those stainless steel foils.
【００２９】それから、実験例１と同様に、それらのス
テンレス箔の表面の酸化皮膜の色調を調べるとともにそ
れらの色調を判定し、それらの色調および判定を表２に
示した。Then, in the same manner as in Experimental Example 1, the color tone of the oxide film on the surface of the stainless steel foil was examined and the color tone thereof was determined, and the color tone and the determination are shown in Table 2.
【００３０】この実験結果より、アルカリ性を呈する水
溶液で濃い色調が得られ、また、電解処理の電流密度が
１０Ａ／ｄｍ2 を超えると色むらを生じることがわか
る。さらに、水溶性染料としてメチレングリーンを用い
ても、濃い色調が得られることがわかる。From the results of this experiment, it can be seen that a dark color tone is obtained with an alkaline aqueous solution and that color unevenness occurs when the current density of the electrolytic treatment exceeds 10 A / dm 2 . Furthermore, it can be seen that even if methylene green is used as the water-soluble dye, a deep color tone can be obtained.
【００３１】なお、上述の各実験例１および２は、図１
および図２に示す電解装置を用いて行った。The experimental examples 1 and 2 described above are shown in FIG.
And the electrolysis apparatus shown in FIG.
【００３２】上述の実験例では、水溶液がアルカリ性を
呈するベースとしてりん酸３ナトリウムを用いたが、水
溶液のベースとしてりん酸３ナトリウム以外に水酸化ナ
トリウムあるいは水酸化カリウムを用いても効果があっ
た。In the above experimental example, trisodium phosphate was used as a base for the aqueous solution to exhibit alkalinity, but sodium hydroxide or potassium hydroxide was also effective as a base for the aqueous solution in addition to trisodium phosphate. .
【００３３】また、上述の実験例では、水溶性染料とし
てメチレンブルーあるいはメチレングリーンを用いた
が、水溶性染料としてたとえばローダミンＢなどのカチ
オン系の染料を用いても効果があった。In the above experimental example, methylene blue or methylene green was used as the water-soluble dye, but a cationic dye such as rhodamine B was also effective as the water-soluble dye.
【図１】この発明を実施するための電解装置の一例を示
す図解図である。FIG. 1 is an illustrative view showing an example of an electrolysis device for carrying out the present invention.
【図２】図１に示す電解装置の浴およびその周辺部分を
示す図解図である。FIG. 2 is an illustrative view showing a bath of the electrolysis apparatus shown in FIG. 1 and its peripheral portion.
１０ 電解装置 １２ 定電流電源 １４ 極性転換スイッチ １６ 電流計 １８ａ，１８ｂ 接続具 ２０ ステンレス板 ２２ 対極板 ２４ 浴 ２６ 水溶液 10 Electrolyzer 12 Constant Current Power Supply 14 Polarity Change Switch 16 Ammeter 18a, 18b Connection Tool 20 Stainless Steel Plate 22 Counter Electrode 24 Bath 26 Aqueous Solution
───────────────────────────────────────────────────── フロントページの続き (72)発明者 青 木 善 一 大阪府八尾市南太子堂１丁目１の42 近畿 薬品工業株式会社内 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Zenichi Aoki 1-2-1 Minami-Taishi-do, Yao-shi, Osaka Prefecture Kinki Pharmaceutical Co., Ltd.
Claims (3)
ことによって発色を行うステンレスの電解発色法であっ
て、 水溶性染料を添加したアルカリ性を呈する水溶液を準備
する工程、および前記水溶液中で前記ステンレスに陽極
電解処理および陰極電解処理を交互に繰り返して行う工
程を含む、ステンレスの電解発色法。1. A method for electrolytic color development of stainless steel for forming a color by forming an oxide film on the surface of stainless steel, comprising the steps of preparing an alkaline aqueous solution to which a water-soluble dye is added, and the stainless steel in the aqueous solution. A method for electrolytic coloring of stainless steel, which comprises a step of alternately repeating an anodic electrolysis treatment and a cathodic electrolysis treatment.
理における電流密度は、それぞれ０．１〜１０Ａ／ｄｍ
2 である、請求項１のステンレスの電解発色法。2. The current densities in the anodic electrolysis treatment and the cathodic electrolysis treatment are 0.1 to 10 A / dm, respectively.
2. The electrolytic coloring method for stainless steel according to claim 1, wherein the method is 2.
濃度は、０．１〜１０重量％である、請求項１または請
求項２のステンレスの電解発色法。3. The electrolytic color development method for stainless steel according to claim 1, wherein the concentration of the water-soluble dye in the aqueous solution is 0.1 to 10% by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8604691A JPH06299394A (en) | 1991-03-25 | 1991-03-25 | Electrolytic color developing method for stainless steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8604691A JPH06299394A (en) | 1991-03-25 | 1991-03-25 | Electrolytic color developing method for stainless steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06299394A true JPH06299394A (en) | 1994-10-25 |
Family
ID=13875738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8604691A Pending JPH06299394A (en) | 1991-03-25 | 1991-03-25 | Electrolytic color developing method for stainless steel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06299394A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11331702B2 (en) | 2017-01-31 | 2022-05-17 | Abel Co., Ltd. | Colored stainless steel plate and colored stainless steel coil |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5140343A (en) * | 1974-09-25 | 1976-04-05 | Ota Toshuki | Aruminiumuno hyomenshoriho |
| JPS6344078A (en) * | 1986-08-06 | 1988-02-25 | 松山 隆康 | Temporary fixing jig for through diaphragm |
| JPS63312998A (en) * | 1987-06-05 | 1988-12-21 | ヘンケル・コマンディットゲゼルシャフト・アウフ・アクチェン | Electrolytic coloration of anodic oxidized aluminum |
| JPH01205095A (en) * | 1988-02-12 | 1989-08-17 | Kinki Yakuhin Kogyo Kk | Method for electrolytically developing color on stainless steel |
-
1991
- 1991-03-25 JP JP8604691A patent/JPH06299394A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5140343A (en) * | 1974-09-25 | 1976-04-05 | Ota Toshuki | Aruminiumuno hyomenshoriho |
| JPS6344078A (en) * | 1986-08-06 | 1988-02-25 | 松山 隆康 | Temporary fixing jig for through diaphragm |
| JPS63312998A (en) * | 1987-06-05 | 1988-12-21 | ヘンケル・コマンディットゲゼルシャフト・アウフ・アクチェン | Electrolytic coloration of anodic oxidized aluminum |
| JPH01205095A (en) * | 1988-02-12 | 1989-08-17 | Kinki Yakuhin Kogyo Kk | Method for electrolytically developing color on stainless steel |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11331702B2 (en) | 2017-01-31 | 2022-05-17 | Abel Co., Ltd. | Colored stainless steel plate and colored stainless steel coil |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0759759B2 (en) | Method and apparatus for descaling annealed stainless steel strip | |
| JPH06299394A (en) | Electrolytic color developing method for stainless steel | |
| US4571287A (en) | Electrolytically producing anodic oxidation coat on Al or Al alloy | |
| US3935084A (en) | Anodizing process | |
| JPS5579086A (en) | Electrolytic treating method for waste water | |
| JPH01205095A (en) | Method for electrolytically developing color on stainless steel | |
| JPS5517580A (en) | Preparation of supporter for printing plate | |
| JPS62270796A (en) | Method for electrolytically coloring chromium alloy | |
| JPS5827997A (en) | Pretreatment of stainless steel for color formation | |
| JPH0668153B2 (en) | Chromium alloy surface treatment method | |
| JP2614112B2 (en) | Electrolytic treatment of aluminum support for printing plate | |
| JP2935789B2 (en) | Method for forming colored film of aluminum or aluminum alloy | |
| JPS5681697A (en) | Aluminum or aluminum alloy coloring method | |
| JPS57110694A (en) | Method for coloring of anodized film of aluminum and its alloy by two stage current inversion electrolysis | |
| JPH0440439B2 (en) | ||
| JPS62196395A (en) | Surface-treatment of chromium alloy | |
| JP2006028573A (en) | Method for coloring stainless steel and coloring treatment liquid for stainless steel | |
| JPH042800A (en) | Production for aluminum substrate for printing plate | |
| JPS6227596A (en) | Coloring method for chromium alloy | |
| JP2715346B2 (en) | Electrolytic treatment of aluminum support for printing plate | |
| JPH021391A (en) | Production of aluminum support for printing plate | |
| JPS63307283A (en) | Surface treatment for chromium alloy | |
| KR810000090B1 (en) | Plating method for aluminium and aluminium alloy | |
| JPS57192289A (en) | Surface treatment of aluminun or its alloy | |
| JPS57110695A (en) | Method for coloring of anodized film utilizing current inversion electrolysis and aluminum alloy |