マイクロフォン

​受付時間 9:00~18:00 
直通電話 090-6819-5609

mail:connection.fukui@gmail.com

硬質陽極酸化「硬質アルマイト」

Details of hard anodizing "hard alumite"

Hard anodizing "hard alumite" treatment

A2017 material can be black hard anodized (black hard alumite treatment).

Hard alumite and Teflon hard alumite are also available.

Hard anodized film (hard alumite) is a surface treatment that artificially forms an oxide film (Al2O3) by electrolyzing aluminum with an anode (+ pole).

Hard anodic oxide film treatment is a world-class technology that Japan is proud of, and it can express colors such as silver, gold, and black depending on the electrolytic conditions such as the type, concentration, temperature, and current density of the electrolytic solution (coloring / coloring), and the surface. It is possible to give wear resistance etc. by making it hard.

A thick oxide film (Al2O3) is formed on the surface by electrolyzing aluminum as an anode in an electrolytic solution such as sulfuric acid, oxalic acid, or chromic acid. This is called anodized aluminum film (anodized aluminum).

Aluminum anodizing (anodizing) can only be applied to aluminum materials, but it can be used for various purposes such as decoration, corrosion protection, and wear resistance.

For decoration and anti-corrosion purposes, it may be treated to about 5 to 10 μm, and for wear resistance, it may be treated to 10 to 100 μm.

The hard anodic oxide film not only has excellent corrosion resistance, but also has the characteristics of being an electrical insulator, high hardness, and excellent wear resistance.

Hard anodizing "Alumite" film hardness

The film hardness of hard alumite is about Hv400, which is higher than that of stainless steel.

Since aluminum oxide has a structure that forms fine pores (100 to 300 Å) when a hard anodized film of aluminum is formed, it is possible to fill these pores with dye or Teflon (PTFE: polytetrafluoroethylene). It is possible to add value to the hard alumite film.

処理可能サイズ

板形状であれば、深さ450×横幅450㎜まで処理対応可能です。

処理可能材質

アルミニウム(A1000系、A2000系、A3000系、A5000系、A4000系、A6000系、A7000系)

製品の部分的なマスキングなどの細かな設定も可能ですのでお気軽にご相談下さい。

アルミニウムの陽極酸化皮膜の断面イメージ図

皮膜はハニカム構造(蜂の巣)になっており、中心にポアと呼ばれる微細な孔が形成されます。

着色アルマイトの場合にはこの微細孔の中に

染料などを入れ抜けないように微細孔に蓋(封孔処理)を行うことで着色を行います。

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Appearance of hard anodic oxide film

It is possible to add value to the hard alumite film by filling the fine pores of the hard anodized film with dye or Teflon (PTFE: polytetrafluoroethylene).

硬質アルマイト

アルミニウムの導通性テスト

Corrosion resistance data

A:使用して差し支えない。

B:試験して、その結果により使用の可否を判断する。

C:皿のように洗って使用すれば可。

D:腐食を覚悟の上で使用する必要あり。

E:相当に侵食される。

F:使用に耐えず。

陽極酸化皮膜『アルマイト』のJIS表記、耐食性試験(アルカリ滴下試験、起電力測定試験)、耐摩耗試験(砂落とし摩耗試験、噴射摩耗試験、往復運動摩耗試験)の詳細です。

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​お電話でのお問い合わせはこちら
 

  090-6819-5690

 

​受付時間 9:00〜18:00

お問い合わせフォームはこちら

 

 
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ご質問回答
  01 

Q. I would like to apply black hard alumite to a product with a tolerance of φ20h7 (0, -0.021) (material A5056). Is it possible?

I want to keep the tolerance part within the tolerance after black hard alumite.

A. Black hard alumite treatment is available.

Tolerance φ20h7 (0, -0.021), but the dimension increase during black hard alumite increases by about 10 μm on one side, so if you can finish the pre-treatment dimensions at 19.970, specify the tolerance after black hard alumite. It is possible to fit in the tolerance.

  02 

Q. Is it possible to treat blasted aluminum alloy (A7075 material) with Teflon hard alumite?

A. Teflon hard alumite treatment is available. Was it okay if the film thickness was about 20 μm?

  03 

Q. Regarding the contents of the attached drawing, please estimate the processing of one quantity.
Material: A6061 Aluminum processing: Anodized AA20 Black ISO 7599

A. We can process it, so we will show you a quotation.

  04 

Q. Is it possible to use hard alumite in white or black?

The size is A5000 series and 6000 series aluminum pipes of about φ100 x 1000L.

A. Regarding inquiries, we may be able to respond.

I would like to confirm the hanging position.

We would appreciate it if you could send us the drawings.

  05 

Q. Is it possible to apply a matte hard alumite treatment to the aluminum material (A5052)?

A. Aluminum material (A5052) can be treated with matte hard alumite.

As the matting method, you can select matting with shot blast or matting with treatment liquid.

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Connection Co., Ltd.

Please feel free to contact us for plating, coating, polishing, heat treatment, etc.

Consultations and quotations are free.

​4-202-5 Shizugaoka, Fukui City, Fukui Prefecture 910-3635 (Japan)

​Reception hours 9: 00-18: 00 

Direct phone 090-6819-5609

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