There are a large number of pores in the foam aluminum, which makes it have the advantages of light weight and high specific strength. It also has strong energy absorption, impact resistance, high specific strength, electromagnetic shielding, sound absorption performance, high damping, low thermal conductivity, etc. Special advantages such as low conductivity. Therefore, foamed aluminum is a promising new functional material.
Foamed aluminum acts as an energy-absorbing material and shock-absorbing material: during the compression process, foamed aluminum will convert a large amount of work into energy in the form of deformation, collapse, rupture, and mutual friction of the foamed aluminum cells. Therefore, the foamed aluminum can absorb a large amount of energy. The external impact energy. Foamed aluminum has high damping properties, and the damping value of pure aluminum foam is about 5-10 times that of aluminum. Utilizing the good energy absorption and damping properties of foamed aluminum, it can be made into excellent energy absorbing materials and shock absorption materials, such as car bumpers, spacecraft landing gears, elevators, conveyor safety pads, and high-speed grinder protective covers. Can be lined, etc.
Foamed aluminum is used as a sound-absorbing material: the special pore structure of foamed aluminum makes it have good sound-absorbing performance. From the perspective of comprehensive performance, foamed aluminum is the best choice to replace traditional sound-absorbing materials. It can be widely used in radio recording studios, buildings and automatic office equipment, etc. It can be used for exterior decoration and sound-absorbing materials.
Foamed aluminum is used as a filter material: Foamed aluminum has excellent permeability and is a very good filter material. The pores of the foam metal have the effect of retaining and trapping solid particles in the fluid medium. The gas or liquid can be filtered and separated after passing through the foam metal, so as to achieve the purification or separation of the medium. The porous metal filter can be used to remove oil and gasoline. , Refrigerants, polymer melts and suspensions, etc., as well as air and other air streams to filter out solid particles. Foamed metal materials can also be used as separation media, such as separating oil from water or separating water from refrigerants.