​受付時間 9:00~18:00 
直通電話 090-6819-5609

mail:connection.fukui@gmail.com

陽極酸化「アルマイト」

Details of anodizing "Alumite"

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 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.

Alumite film hardness

White alumite (colored alumite) Hv250, anodized coloring (colored alumite film) has a structure in which aluminum oxide forms fine pores (100 to 300 Å) when anodized aluminum film is formed. Coloring can be performed by filling these holes with various substances.

アルマイトの種類と皮膜硬度

​アルマイトの目的に応じた膜厚

装飾や防食目的の場合には5~10μm程度、耐摩耗性を目的とする場合には10~100μmまで処理を施す場合がございます。​

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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

 

Color variations

We have 15 basic colors available.

You can also express intermediate colors by toning.

Please tell us your desired color.

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Processable size

If it is a plate shape, it can process up to 450 mm in depth and 450 mm in width.

Processable material

Aluminum (A1000 series, A2000 series, A3000 series, A5000 series, A4000 series, A6000 series, A7000 series)

Partial masking of the product is possible.

Polishing process is also available.

Cross-sectional image of aluminum anodic oxide film

The film has a honeycomb structure (honeycomb), and fine holes called pores are formed in the center.

In the case of colored alumite, in these micropores

Coloring is performed by covering the micropores with a lid (sealing treatment) to prevent dyes from entering.

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Aluminum continuity test

Corrosion resistance data

A: Can be used as a container

B: Can be used for a short time

C: Cannot be used

JIS notation of anodized film (anodized)

Details of JIS notation of anodic oxide film "Alumite", corrosion resistance test (alkali dripping test, electromotive force measurement test), wear resistance test (sand drop wear test, injection wear test, reciprocating motion wear test).

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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. 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?

  02 

Q. Is it possible to handle aluminum alloy (A1100) with gold plating, silver plating, and alumite?

A. A1100 can be gold-plated, silver-plated, and alumite-plated, but gold-plated and silver-plated cannot be directly processed on aluminum alloys, so nickel plating is applied to the base before plating for each purpose.

  03 

Q. I am using aluminum material (A6061) with black alumite applied, but there is a process of opening and tightening the screws, which causes wear and contamination, so I want to suppress wear.

A. There is a possibility that wear can be suppressed by increasing the film hardness of A6061 with black hard alumite. If black hard alumite is not enough, we also offer black super hard alumite with even higher film hardness, so we would appreciate it if you could evaluate it.

  04 

Q. Is it possible to process colored alumite (red) for the following products?

Material: A5052

Dimensions: 500 x 130 x 70

A. Both material and size can be processed.

We will confirm if you can get the detailed shape such as drawings.

  05 

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.

  06 

Q. Is it possible to process MIL-spec Alozin # 1000 (MIL-DTL-5541F Class 3)?

The material is aluminum (A1100, A6061, A7075).

A. Alodine # 1000 (MIL-DTL-5541F Class 3) treatment for aluminum materials (A1100, A6061, A7075 materials, etc.) is available.
What is the size of the item? We may not be able to do it depending on the size.

  07 

Q. The drawing says Anodized AA20 Black iso7599. Is it possible to handle surface treatment?

A. Anodized AA20 Black iso7599 in the drawing instructions means that aluminum anodized "anodized" 20 μm or more black = black alumite 20 μm or more. Click here for details

  08 

Q. Is it possible to use a chromate film (Alodine # 1000, Alozin # 1200) for aluminum material (A2011 material)?
 

A. Both Alodine # 1000 and Alodine # 1200 can be processed for aluminum material (A2011 material).

  09 

Q. Some products have anodized aluminum material (A5052). Is it possible to remove the anodized aluminum? Is it possible to make the material as rough as possible?

A. It is possible to peel off the alumite treatment without roughening the aluminum material as much as possible, but since the alumite treatment itself is a method of forming a film while melting the aluminum, the aluminum material is eroded by the alumite treatment. ..

Since there are size restrictions, please tell me the product size etc.

  10

Q. I would like to partially apply alumite. Is it possible to handle masking etc.?

A. Masking is available for alumite treatment.

If you send us a drawing that shows the shape etc., we will check whether it can be processed.

  11 

Q. Is it possible to use alumite-treated stainless color for aluminum material (A5052)?

A. A5052 alumite treatment + stainless color is available.

  12  

Q. Is heat resistant crackless alumite possible?

A. Our heat-resistant crackless alumite is crackless up to a temperature of 130 ° C, but cracks will occur above that temperature.

  13  ​

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

A. Matte alumite treatment is available for aluminum material (A5052).

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

  14  ​

Q. I have a large number of small products. Is it possible to anodize them with a basket?

A. Alumite treatment uses an external power source to process the anodic oxidation of aluminum, but it is necessary to pass electricity (+ pole) to the product.

Electricity itself can be passed through a basket, but since the alumite film is an insulating film, electricity does not flow where the film is formed.

Become. The energization is interrupted in the middle, and there are parts where alumite is generated and parts where the aluminum material is exposed.

We cannot handle it with a basket, etc.

It will be processed by chucking the products one by one.

  15  ​

Q. The material of aluminum has not been determined, but in the case of four types of materials, A5056, A2017, A6061 and A7075.

Is it possible to handle the chemical conversion treatment of trivalent chromium?

A. All four types of aluminum (A5056, A2017, A6061, A7075) that you consulted are available for chemical conversion treatment of trivalent chromium.

  16 

Q. I'm thinking about colored alumite treatment. Is it possible to handle everything from material procurement to machining and colored alumite?

Also, I would like to discuss the product design, but is it possible?

A. It is unclear how much we can meet your request regarding product design, but design production, material procurement-machining, colored alumite

We can handle the process consistently.

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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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