Aluminum foam is made by adding additives to pure aluminum or aluminum alloy through a foaming process, and has the characteristics of metal and bubbles at the same time. The production process is to send the molten aluminum alloy to a foaming box, inject gas to form a liquid foam, and after the liquid foam is solidified, it will form the required shape.

Aluminum foam performance

1. Lightweight

The density is 0.2~0.4g/cm3, which is about 1/10 of the density of aluminum, 1/20 of the density of titanium, 1/30 of the density of steel, 1/30 of the density of steel, and 1/3 of the density of wood.

2, sound absorption

When the sound enters the foam, it will be diffusely reflected and interfere with each other, so that the sound energy is converted into heat energy and the noise is weakened.

Compared with other sound-absorbing materials, the low-frequency absorption performance is excellent, plus a certain size cavity, the sound absorption effect is better, and it can be used in a wider frequency range.

For example: before the indoor sound absorption treatment, the wall is made of very hard cement. After the room is pasted with 10mm thick foam aluminum panels for sound absorption and noise reduction treatment, the sound absorption can reduce the noise by 20-30dB.

3. Sound insulation

It can be compounded with other sound insulation materials. Due to the sound absorption of foamed aluminum, the sound insulation effect can be further improved.

4. Fire protection

It has good fire resistance. The melting point of aluminum is 660℃, and the foamed aluminum begins to soften (because it cannot bear its own weight), but it has not melted until 800℃.

In the absence of external force, it will not deform even if exposed to a high temperature of 780℃, and will withstand higher temperatures than ordinary sound-absorbing materials.

In addition, foamed aluminum is a non-combustible material and will not generate harmful gases like plastics and other materials.

5. Electromagnetic shielding

It has excellent electromagnetic shielding performance and also has sound absorption characteristics.

It is most suitable for making ceilings and walls of electrical equipment rooms as electromagnetic shielding materials.

6, Good energy absorption and buffering 
When the pressure reaches the yield point, the bubble diaphragm deforms, continuously deforming layer by layer, and the bubble breaks, resulting in a great compression deformation, thereby absorbing the impact energy and showing a good cushioning effect. 

7, easy to process

It is easy to perform mechanical processing, such as cutting, drilling, bending and embossing.

The aluminum foam board can be cut into different specifications and sizes with a saw, which can be easily drilled and riveted, can also be bent and embossed, and can be bonded to each other with adhesive.

8. Convenient construction

Light weight, can be installed manually, especially suitable for ceiling, wall, roof and other high places.

Because of the convenience of processing, bonding and riveting can be carried out, and it is easy to connect with other structures.

Therefore, it is convenient for on-site construction and installation combination.

9, the surface decoration effect is good

Using a special process, the outer surface can be painted with paint.

Coating hardly damages its sound-absorbing effect.

10, can be used as a sandwich

Bonding aluminum, copper, titanium and other thin plates on both sides to make a sandwich plate, which can be made into a lightweight and high-strength plate, which can be used as a structural material with excellent performance.