JPS5852036B2 - Anodizing treatment method - Google Patents
Anodizing treatment methodInfo
- Publication number
- JPS5852036B2 JPS5852036B2 JP17642780A JP17642780A JPS5852036B2 JP S5852036 B2 JPS5852036 B2 JP S5852036B2 JP 17642780 A JP17642780 A JP 17642780A JP 17642780 A JP17642780 A JP 17642780A JP S5852036 B2 JPS5852036 B2 JP S5852036B2
- Authority
- JP
- Japan
- Prior art keywords
- aluminum
- aluminum alloy
- anodizing
- treatment method
- anodized
- 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.)
- Expired
Links
Description
【発明の詳細な説明】
この発明は優れた電気的、機械的および化学的性質を有
する陽極酸化皮膜を得ることのできるアルミニウムまた
はアルミニウム合金の陽極酸化処理方法に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for anodizing aluminum or aluminum alloys, which makes it possible to obtain an anodic oxide film having excellent electrical, mechanical and chemical properties.
アルミニウムまたはアルミニウム合金の陽極酸化皮膜は
電気絶縁性、表面硬度、耐摩耗性、耐食性を有している
。The anodic oxide film of aluminum or aluminum alloy has electrical insulation, surface hardness, wear resistance, and corrosion resistance.
しかしながら、使用用途によっては電気絶縁性、耐摩耗
性などが十分でない場合があり、これら陽極酸化皮膜の
改質が色々と行われている。However, depending on the intended use, electrical insulation properties, abrasion resistance, etc. may not be sufficient, and various modifications of these anodic oxide films are being carried out.
例えば、陽極酸化直後の陽極酸化皮膜表面にシリコンワ
ニスやエポキシ樹脂などをコーティングしたり、アクリ
ル塗料やメラニン塗料などを電着塗装したり、あるいは
陽極酸化皮膜の刺孔処理などが行われている。For example, the surface of the anodized film immediately after anodization is coated with silicone varnish or epoxy resin, acrylic paint or melanin paint is electrodeposited, or the anodized film is punctured.
しかし、陽極酸化皮膜表面に樹脂や塗料を塗布するもの
にあっては、作業に手間がかかるとともに、得られる酸
化皮膜の特性が不満足で耐久性に劣ることがあった。However, in cases where resin or paint is applied to the surface of the anodic oxide film, the work is time-consuming and the properties of the resulting oxide film are sometimes unsatisfactory and poor in durability.
また、封孔処理も作業性が劣り、コストが高くつくなど
の欠点があった。In addition, the sealing process also has drawbacks such as poor workability and high cost.
この発明は上記事情に鑑みてなされたもので、優れた電
気絶縁性、耐加熱性、耐薬品性を有する陽極酸化皮膜を
容易に形成することのできるアルミニウムまたはアルミ
ニウムの陽極酸化処理方法を提供することを目的とし、
特定のシラン化合物を含む電解液中でアルミニウムまた
はアルミニウム合金を陽極酸化することを特徴とするも
のであ・る０
以下、この発明の詳細な説明する。The present invention has been made in view of the above circumstances, and provides a method for anodizing aluminum or aluminum that can easily form an anodic oxide film having excellent electrical insulation, heat resistance, and chemical resistance. The purpose is to
The invention is characterized in that aluminum or an aluminum alloy is anodized in an electrolytic solution containing a specific silane compound.The present invention will now be described in detail.
この発明の陽極酸化処理法はシラン化合物を含む電解液
中でアルミニウムまたはアルミニウム合金を陽極酸化処
理するものである。The anodizing method of the present invention is to anodize aluminum or an aluminum alloy in an electrolytic solution containing a silane compound.
ここに用いられるシラン化合物は（Ｉ）式で示される化
合物である。The silane compound used here is a compound represented by formula (I).
ここでＲ４−ＩＣＨ二ＣＨ−、Ｎｌ２− 、 ＳＨ−１
２
ＣＨ＝ＣＨ−ＣＨ２−、ＣＨ−ＣＨ−ＣＨ２・０・一＼
／
（ＣＨ２）３−２Ｃ’ ０
Ｎｌ２・（ＣＨ２）３−９などの置換基を示す。Here R4-ICH2CH-, Nl2-, SH-1
2 CH=CH-CH2-, CH-CH-CH2・0・1＼
/ (CH2)3-2C' 0 Indicates a substituent such as Nl2.(CH2)3-9.
Ｒは−ＯＣＨ−ＱＣＨ−０ＣＯＣＨ３゜
２ ：３９ ２
５ ツーＣＩなどの置換基を示す。R is -OCH-QCH-0COCH3゜2:39 2
5 Indicates a substituent such as two CI.
また、電解液としては硫酸、蓚酸、クロム酸、スルフオ
サリチル酸、リン酸などの酸水溶液の常用の各種陽極酸
化用電解液力５用いられ、電解液へのシラン化合物の添
加量は０．１〜１５ｗｔ％、好ましくは０．５〜１０ｗ
ｔ％であり、０．１ ｗ ｔ％未満ではこの発明の効果
が得られず、１５ｗｔ％を越えると効果が逆に低下し、
好ましくない。In addition, as the electrolyte, various commonly used anodic oxidation electrolytes such as sulfuric acid, oxalic acid, chromic acid, sulfosalicylic acid, phosphoric acid, etc. are used, and the amount of silane compound added to the electrolyte is 0.1 ~15wt%, preferably 0.5~10w
t%, and if it is less than 0.1 wt%, the effect of this invention cannot be obtained, and if it exceeds 15 wt%, the effect decreases,
Undesirable.
次に、シラン化合物が添加された電解液中でアルミニウ
ムまたはアルミニウム合金が陽極酸化される。Next, the aluminum or aluminum alloy is anodized in an electrolytic solution to which a silane compound is added.
アルミニウムまたはアルミニウム合金は連続あるいは断
続でも陽極になるように接続され、対極には不活性の導
電材料が接続されて電解される。Aluminum or aluminum alloy is connected continuously or intermittently to become an anode, and an inert conductive material is connected to the counter electrode for electrolysis.
電解電流は直流電流、不完全整流波形電流、交直重量電
流、交直併用電流などが用いられ、電解液温は０〜８０
℃で、電解時間は１０〜１２０分である。The electrolytic current used is a direct current, incompletely rectified waveform current, AC/DC gravimetric current, AC/DC combined current, etc., and the electrolyte temperature is 0 to 80°C.
℃, the electrolysis time is 10-120 minutes.
以上のようにして陽極酸化されたアルミニウムまたはア
ルミニウム合金はその表面ｌこ微細孔が生成し、この微
細孔内ｌこシラン化合物が加水分解反応によってシラノ
ール化合物となって吸着、充填される。The aluminum or aluminum alloy anodized in the above manner has micropores formed on its surface, and the silane compounds in the micropores are adsorbed and filled as silanol compounds through a hydrolysis reaction.
このシラノール化合物の微細孔への充填により、アルミ
ニウムまたはアルミニウム合金の電気絶縁性、耐薬品性
、耐熱性が著しく向上する。By filling the micropores with this silanol compound, the electrical insulation, chemical resistance, and heat resistance of aluminum or aluminum alloy are significantly improved.
以下、この発明を実施例に基づいて具体的【こ説明する
。Hereinafter, this invention will be specifically explained based on examples.
実施例
アルミ板材（２８１半硬質）をトリクロロエチレンで脱
脂洗浄して試料片とした。Example An aluminum plate material (281 semi-hard) was degreased and cleaned with trichlorethylene to prepare a sample piece.
電解液として１５ ｗ ｔ％硫酸水溶液にビニルトリメ
トキシシラン（ＣＨ２・ＣＨ−８ｉ・（ＯＣＨ３）３）
、γ−アミノプロピルトリエトキシシラン（Ｎｌ２・
（ＣＨ２）３Ｓｉ・（ＯＣ２Ｈ５）３）を別々に０．１
，０．５，１，２゜３ 、５ 、１０ 、１５ ｖｏｗ
％添加したものを用意し、前記試料片を２０℃、電流密
度２Ａ／ｄｉで１０分直流にて陽極酸化し、厚み２０μ
ｍのアルマイト皮膜を形成した。Vinyltrimethoxysilane (CH2・CH-8i・(OCH3)3) was added to a 15 wt% sulfuric acid aqueous solution as an electrolyte.
, γ-aminopropyltriethoxysilane (Nl2.
(CH2)3Si・(OC2H5)3) separately at 0.1
,0.5,1,2゜3 ,5 ,10 ,15 vow
% was prepared, and the sample piece was anodized at 20°C and a current density of 2A/di for 10 minutes with direct current to a thickness of 20μ.
An alumite film of m was formed.
得られたアルマイト皮膜について、■絶縁耐圧、０３５
０℃、３０分間加熱によるヘヤークラックの発生の有無
■６０％ＲＨ中での５０Ｖ荷電時の体積固有抵抗■耐薬
品性試験として、２ｗｔ％Ｎ ａ ２ ＣＯｓ水溶液、
４ｗｔ％Ｈ（ｌ水溶液中に４時間浸漬した時の皮膜の
溶解量を測定した。Regarding the obtained alumite film, ■Dielectric strength voltage, 035
Occurrence of hair cracks by heating at 0°C for 30 minutes ■ Volume resistivity when charged at 50 V in 60% RH ■ As a chemical resistance test, a 2 wt% Na 2 COs aqueous solution,
The amount of dissolution of the film was measured when the film was immersed in a 4 wt % H (1) aqueous solution for 4 hours.
その結果を第１表に示した。The results are shown in Table 1.
以上説明したようにこの発明のアルミニウムまたはアル
ミニウム合金の陽極酸化処理方法は特定のシラン化合物
を電解液に添加し、この電解液中でアルミニウムまたは
アルミニウム合金を陽極酸化するもので、陽極酸化皮膜
が形成されると同時にこの陽極酸化皮膜中の微細孔中に
シラン化合物が吸着、充填されるので、優れた電気絶縁
性、耐熱性、耐薬品性を有するアルミニウムまたはアル
ミニウム合金が一工程で得られ、従来の塗布方法や封孔
処理に比べて作業性にすぐれ、低コストで陽極酸化処理
アルミニウムまたはアルミニウム合金が製造できるなど
の利点を有しているものである０As explained above, the method of anodizing aluminum or aluminum alloy according to the present invention involves adding a specific silane compound to an electrolytic solution and anodizing aluminum or aluminum alloy in this electrolytic solution, thereby forming an anodized film. At the same time, the silane compound is adsorbed and filled into the micropores in this anodic oxide film, making it possible to obtain aluminum or aluminum alloys with excellent electrical insulation, heat resistance, and chemical resistance in one step, and It has the advantages of superior workability and the ability to produce anodized aluminum or aluminum alloy at low cost compared to coating methods and pore sealing treatments.
Claims (1)
＝ＣＨ−ＣＨ２−１ＣＨ２・ＣＨ−ＣＨ２・０・＼ １ （ＣＨ２）３− 、 ＣＪ’ −、Ｎｌ２・（ＣＨ２）
３−などの置換基、Ｒ２は一０ＣＨ３，−ＱＣ２Ｈ５，
−０ＣＯＣＨ３゜−ＣＺなどの置換基である。 ）で示されるシラン化合物を含む電解液中でアルミニウ
ムまたはアルミニウム合金を陽極酸化することを特徴と
するアルミニウムまたはアルミニウム合金の陽極酸化処
理方法。[Claims] 1 General formula (wherein R1 is CH2=CH-, Nl2-, 5HCH2
=CH-CH2-1CH2・CH-CH2・0・\1 (CH2)3−, CJ' −, Nl2・(CH2)
Substituents such as 3-, R2 is -0CH3, -QC2H5,
It is a substituent such as -0COCH3°-CZ. ) A method for anodizing aluminum or an aluminum alloy, comprising anodizing the aluminum or aluminum alloy in an electrolytic solution containing a silane compound.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17642780A JPS5852036B2 (en) | 1980-12-13 | 1980-12-13 | Anodizing treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17642780A JPS5852036B2 (en) | 1980-12-13 | 1980-12-13 | Anodizing treatment method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57101695A JPS57101695A (en) | 1982-06-24 |
| JPS5852036B2 true JPS5852036B2 (en) | 1983-11-19 |
Family
ID=16013505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17642780A Expired JPS5852036B2 (en) | 1980-12-13 | 1980-12-13 | Anodizing treatment method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5852036B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6827981B2 (en) | 1999-07-19 | 2004-12-07 | The University Of Cincinnati | Silane coatings for metal |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1228581B (en) * | 1982-06-29 | 1991-06-24 | Italtecno Srl | Sealing anodically oxidised aluminium and alloys - with solns. contg. hydroxylated organic cpd. to improve resistance to alkali |
| DE3740698A1 (en) * | 1987-12-01 | 1989-06-15 | Basf Ag | METHOD FOR THE ANODIC OXIDATION OF THE SURFACE OF ALUMINUM OR ALUMINUM ALLOYS |
| KR0131179B1 (en) * | 1993-02-22 | 1998-04-14 | 슌뻬이 야마자끼 | Process for fabricating electronics circuits |
| CN106521596B (en) * | 2016-12-15 | 2018-12-18 | 河海大学常州校区 | A kind of anode surface micro arc plasma body prepares the solution and preparation method of anti-marine microorganism film |
-
1980
- 1980-12-13 JP JP17642780A patent/JPS5852036B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6827981B2 (en) | 1999-07-19 | 2004-12-07 | The University Of Cincinnati | Silane coatings for metal |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57101695A (en) | 1982-06-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0747838B2 (en) | Coloring method of titanium or its alloy by controlling the amount of electricity | |
| JPS5852036B2 (en) | Anodizing treatment method | |
| US3365377A (en) | Method of sealing anodized aluminum | |
| US3023149A (en) | Electrolytic method of producing thin sheets of aluminum oxide | |
| JP2941055B2 (en) | Electrolyte additive for coloring bath for coloring aluminum and method for coloring aluminum | |
| JPS61276996A (en) | Surface treatment of titanium or alloy thereof | |
| RU2471020C1 (en) | Application method of electrolytic copper coating to parts from aluminium and its alloys | |
| JP3506826B2 (en) | Aluminum material and manufacturing method thereof | |
| JP2004059997A (en) | Coated alumite having polyimide film and method for producing the same | |
| EP0597131A1 (en) | Phosphating process | |
| JPS59123297A (en) | Method of forming substrate for printed circuit board | |
| JPS607039B2 (en) | Electrodeposition coating method for aluminum or aluminum alloys | |
| Pullen | Some Physical Characteristics of Oxide Films on Aluminium | |
| SU1002413A1 (en) | Method for anodizing aluminium and its alloys | |
| John et al. | Studies on anodizing of aluminium in alkaline electrolyte using alternating current | |
| SU956631A1 (en) | Electrolyte for anodizing aluminium and its allays | |
| JPS5853718B2 (en) | How to treat anodized film | |
| JP3633308B2 (en) | Method for electrolytic coloring of aluminum and aluminum alloys | |
| JPH041079B2 (en) | ||
| JP2939343B2 (en) | Method of forming ceramic film | |
| SU1079701A1 (en) | Copper-plating electrolyte | |
| JPS5834558B2 (en) | Treatment method for anodic oxide film | |
| JPS5822389A (en) | Method for releasing aluminum anodic oxidation skin film | |
| JPS5830397B2 (en) | Electrolytic coloring method for aluminum or aluminum alloys | |
| JPS5832407A (en) | Method of producing tantalum electrolytic condenser |