2. High and controllable porosity: 63%--90%;
3. Large specific surface area of 10-- ---45cm2/cm3;
4.Diversified pore structure;
Aluminum foam 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.
8. Good acoustic performance:
(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.
9. 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.
10. Good thermal performance: a closed-cell foam with a porosity of 80-90%, equivalent to marble.Through - hole aluminum foam has good heat dissipation under forced convection because of its interconnected holes.
11. No combustion and good heat resistance.Corrosion resistance, good weather resistance, low moisture absorption, non-aging, non-toxic.
12. Easy processing: convenient for cutting, drilling and cementing;Can be molded into the desired shape;Can use organic or inorganic paint for surface treatment;Can be skinned on both sides, forming a large size of light, high stiffness plate.
13. Easy installation: aluminum foam material can be installed high without mechanical lifting equipment, such as: ceiling, wall and roof, can be mechanical method or directly with screws connected and fixed, can also be used to paste on the wall or ceiling with adhesive.
14. "sandwich" structure formed by metal sheet -- aluminum foam -- inherits the excellent performance of aluminum foam and has high bending strength, which can be used as new building materials and high-rigidity structural parts of locomotive and vehicle.
15. Multi-function compatibility of the above performance.
