1. Larger aperture 0.3-7mm;
2. High and controllable porosity: 63%--90%;
3. Large specific surface area of 10-- ---45cm2/cm3;
4.Diversified pore structure;
Foam insulated aluminum panels with closed-hole, through-hole and micro-through-hole;
5. The metal skeleton composition and hole structure can be controlled to adapt to different requirements.
6. Light weight: 0.1-0.4 times the density of aluminum.
7. High specific stiffness: its bending stiffness is 1.5 times of steel.
Advantage of Foam insulated aluminum panels :
(1) sound insulation performance (obturator) : when the sound frequency is between 800 -- 4000HZ, the sound insulation coefficient of aluminum foam in the obturator reaches above 0.9.
(2) sound absorption performance (micro-through-hole and through-hole) : when the sound frequency is between 125-- --4000HZ, the maximum sound absorption coefficient of through-hole aluminum foam can reach 0.8, and the average sound absorption coefficient of its octave range exceeds 0.4.
（3）Excellent electromagnetic shielding performance: when the electromagnetic wave frequency is between 2.6-18ghz, the electromagnetic shielding amount of aluminum foam can reach 60-90db.
