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What are the commonly used processes for surface treatment of aluminum veneer?

June 10, 20212 commentsCAMELSTEEL

What are the commonly used processes for surface treatment of aluminum veneer?

aluminum veneer

aluminum veneer http://www.camelsteel.com

The surface shape and smoothness of aluminum veneer will affect the quality of aluminum veneer to a large extent.

It curtain wall commonly uses decorative aluminum alloy material for outdoor walls of buildings.

The surface needs to process by multiple processes to be beautiful and atmospheric.

So what the commonly used processes for surface treatment of It?

Aluminum sheets and aluminum profiles usually require surface treatment to meet different needs.

Common surface treatments for aluminum veneers include sandblasting, coloring, oxide film treatment, and so on.

1. Sandblasting of aluminum veneer

The main function is surface cleaning. Sandblasting before painting (painting or plastic spraying) can increase the surface roughness and contribute to the improvement of adhesion, but the contribution limit.

It is not as good as the pretreatment of chemical paint.

2. Coloring

There are two main processes for coloring aluminum:

one is the aluminum oxidation coloring process, and the other is the aluminum electrophoresis coloring process.

Various colors form on the oxide film to meet certain usage requirements, such as black for optical instrument parts and golden yellow for commemorative medals.

3. Conductive oxidation (chromate conversion coating)-used in occasions where both protection and conductivity are required.

4. Chemical oxidation

The oxide film is thin, with a thickness of about 0.5-4 microns, is porous, soft, and has good adsorption properties.

It can be used as the bottom layer of organic coatings, but its wear resistance and corrosion resistance are not as good as anodic oxide films.

The above four processing methods are only part of the surface treatment methods of It, but they also play a decisive role in the shape and color of the aluminum veneer surface.

Therefore, it is necessary to strictly follow the aluminum veneer industry standards for production and processing during the processing.

The surface treatment of it cannot anodize.

Because each batch of aluminum plates has different material composition and oxidation solution, the surface color difference after oxidation is large, and the overall decoration effect of the curtain wall is extremely poor.

The current color of the anodized aluminum curtain wall is an aluminum natural color.

And gold, anodized aluminum veneer prices are also more expensive, so now most of the reasons for the use of fluorocarbon spraying in the market.

Previous post Application introduction of 3 series alloy aluminum strip Next post What are the differences between aluminized zinc sheet and stainless steel?

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2 comments. Leave new

Blessphemy Guitar
June 13, 2021 4:31 pm

It’s truly a great and helpful piece of information.
I’m satisfied that you shared this useful info with us.

Please stay us informed like this.
Thanks for sharing.

Reply
Rosella
November 23, 2021 2:46 pm

I have actually been trying to find this all this time.

Pleased I have discovered it here. Thanks so much!

Reply

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