In the category of metal nameplates, aluminum nameplates account for over 90% of the market. For over half a century, aluminum sheets have been the preferred material for nameplate production, largely due to aluminum's decorative expressiveness. Many surface finishing techniques can be applied to aluminum, making it easy to achieve a wide array of colorful and varied decorative layers. On the other hand, it is the excellent properties of aluminum that have contributed to its enduring popularity.

Features of Aluminum Alloy Signs:

1. Lightweight – As the weight of aluminum plate per square meter is 2.71 kg/mm, the panels can be as thick as 3mm or even thicker, significantly enhancing the flatness of the surface for printing.

2. Rust-resistant – Aluminum sheets oxidize slowly and do not leave rust stains on walls.

3. Easy to color - facilitates paint film adhesion, with proper processing, the surface durability is nearly on par with automotive finishes.

4. Easy Installation - Due to its low weight, installation is much more convenient.

What are the main methods for aluminum nameplates?

A. Embossed Font: The raised letters create a textured surface, giving your logo a more three-dimensional look. Many domestic brands opt for a black background with silver lettering. The black background can be in various shades—shiny black, matte black, or oxidized black. Of course, if you wish to break the traditional mold and innovate, we can accommodate that as well. We also offer other colors for the background, such as red, blue, green, white, yellow, and any color you desire. Just provide us with the standard color code, and we can create it for you.

B. Concave Font: This refers to the font that is indented, which is also a great way to represent a logo. Silver Surface with Black Characters: This type of trademark is the opposite of black background with silver characters. The standard production method involves indenting the font, then painting the entire surface black and using a carving machine to remove the paint from the label's surface, leaving the paint at the indented font areas. Of course, the surface can also be textured. (Texturing means removing the paint from the label's surface using a texturing machine. After texturing, it's good to do some oxidation treatment, making the trademark more resistant to oxidation and dirt.) You can also choose the color of the indented characters, and we can mix the color you want for you.

C. Silver background with silver letters: The standard practice is to have a sand-bottomed label at the bottom, which can be done in the following methods:

⑴ Sand blasting on molds (commonly done on molds) results in die-cast labels with a sand base.

⑵ Sandblasting, followed by oxidation treatment after the sandblasting process.

Spray silver powder, and then bake it in the oven after it's applied.

D. Bottom Color Production Method:

⑴ Oxidation (such as gold base, silver base, red base, black base, etc.)

② Paint Spraying: The bottom can be painted in different colors as per customer's request (common colors include black, blue, red, orange, gray, silver gray, green, etc.).

③ Painting: The painting must be contained within edges to prevent drips, which requires a border or a recessed painting area. (Colors can also be customized according to customer requirements.)

E. Font Color Handling Method:

⑴ Screen Printing: After the product text is highlighted, different colors should be applied to the raised text, which can be achieved by screen printing. Multiple colors can be screen printed on the same plane, but each color must be dried in an oven after it is screen printed before another color can be applied.

⑵ Electroplating: After the logo font is highlighted, it can be electroplated in different colors as per customer's request (e.g., black, gold, red, chrome plated).

③ Painting (same method as the bottom painting mentioned earlier).

Aluminum alloy sign oxidation manufacturing process

Product Category: Aluminum Alloy Signs

Product Description: Aluminum is a common industrial building material, sharing general characteristics of metallic materials like many other metals.

Once the aluminum anodizing label equipment is debugged, you can proceed with the production of aluminum anodized labels. Regarding the manufacturing process of aluminum plate anodized labels, we provide a simple flowchart illustration. The production process can be divided into two methods: secondary anodization and composite process. There are many combinations for the composite process, which can be integrated with screen printing, offset printing, electro-phoresis paint, high-gloss cutting, etching, sandblasting, and brushed textures, among others. The basic process of the composite method is as follows:

Slice → Brush texture → Oxidize → Gold plating → Spray clear lacquer → Color printing → Spray protective lacquer → Apply protective film → Cut and stamping forming → Embossed glossy cutting.

The double oxidation method is a process used by most sign manufacturers for aluminum oxidation signage, with the following specific steps:

Slice → Mechanical Polishing → Chemical or Electrochemical Polishing → Anodizing → Coloring → Sealing → Screen Printing Text and Graphics → Stripping (Oxide Film) → Second Oxidation → Coloring → Sealing → Mechanical Polishing → Cutting and Stamping into Shape.

In the manufacturing process of anodized aluminum sign panels, the aluminum sheet panels are the focal point, particularly in terms of coloring and graphic design. During the production of anodized aluminum sign panels, we should pay attention to the following aspects.

1. Communication oxidation coloring, the oxide film is soft for embossing and subsequent processing.

2. Room temperature oxidation is suitable for black dyeing.

3. Low-temperature oxidation, resulting in a fine and hard oxide film, suitable for dyeing indigo, gold dyes, etc.

4. Oxalate mixed acid oxidation can yield a hard oxide film at room temperature.

5. Ceramic oxidation using chromic and boric acid anodizing, surface akin to ceramic glaze.

Advantages of Aluminum Alloy Signs

1. Lightweight: Aluminum has a density of 2.702 g/cm³, which is only one-third that of copper and aluminum. Aluminum labels do not add weight to the equipment and also save costs.

2. Easy to Process: Aluminum has excellent ductility, making it easy to cut and stamp into shape, meeting the requirements of label manufacturing.

3. Excellent corrosion resistance, capable of forming a hard and dense oxide film on the surface of aluminum and its alloys.

4. Excellent weather resistance of the anodized aluminum coating, which is resistant to corrosion from many substances. It maintains excellent durability in harsh industrial environments and coastal areas.

5. Non-magnetic: Aluminum is non-magnetic, so aluminum signs will not cause interference to instruments and equipment.

6. Rich Resources: Aluminum reserves are substantial, with annual production of aluminum products ranking second only to steel, accounting for the second-largest share of the world's total metal production.

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