Product Description
Sphere open hole type of hole connecting part of the bubble cabin and the wall of the cabin composed of small round holes, equivalent to a number of tightly packed hollow ball hollowed out of the dense aluminum, the formation of a gas or liquid substances can be allowed to flow through the space in the aluminum body, so the aluminum foam is also known as the metal sponge. Spherical open cell type aluminum foam bubble chamber is spherical, relatively regular, each sphere is arranged very closely to each other, each chamber wall is open small round holes to connect the other spheres, open to six directions, the connectivity rate of more than 90%.
Sphere connected by the pore structure is conducive to the absorption of energy and filtration, because it is not straight through the hole, the energy through the sphere and the pore through the repeated conversion, the flow rate and the flow rate will be gradual attenuation changes.
Used for sound absorption and noise reduction, the ideal application effect can be obtained through the design and process control of the sphere size (diameter 2-11mm), wall hole size (diameter 0.5-2mm), hole wall thickness and plate thickness. Bulk density: about 0.8g/.

Product Advantages
1. Heat-resistant: the use of temperature up to 300 ° C
2. sound absorption performance: sound wave frequency between 125 – 2000HZ, sound absorption coefficient of up to 0.95, noise reduction coefficient of more than 0.4
3. Thermal insulation performance: the coefficient of thermal conductivity is about 1/400 of aluminum;
4. Electromagnetic shielding performance: electromagnetic wave frequency between 2.6 – 18GHZ, the electromagnetic shielding of aluminum foam can reach 60 – 90dB.
5. Resistivity: 100 times that of pure aluminum.
6. corrosion resistance: good weather resistance, low moisture absorption, non-aging, non-toxic.

Product Application
Suitable for all kinds of carrier box and mechanical equipment noise reduction. Used for anti-impact energy absorption, the round dense stacked structure has unparalleled advantages: spherical bubble chamber, round wall holes, the bulkhead is relatively regular, so that the sphere of open cell type in the absorption of energy to resist the impact of a more resistant capacity. Compared to closed-cell types produced by gas foaming and slow-release foaming methods, they have a longer cushioning time and do not rebound when receiving impact energy. Compared with other types of open cell aluminum foam, the compressive (44Mpa) and flexural (27Mpa) strengths of the sphere open cell type are much higher, which is a significant improvement.