What are the characteristics of foam aluminum sound barriers?
Release time: sdfsdfs
2021-02-22
作者：
Foam aluminum sound barriers can be designed with the required comprehensive performance by changing its density and pore structure. This is the charm of this unique material. Compared with glass wool, asbestos and other materials, foam aluminum sound barrier has the characteristics of self-supporting, high temperature resistance, no harmful gas release, low moisture absorption and good weather resistance. It is a new generation of sound absorption and sound insulation with great potential. material. Therefore, it is widely used in the field of traffic noise reduction and environmental protection engineering, such as the production of high-efficiency sound barriers, sound-absorbing walls, etc.
There is almost no plane on the surface of the foamed aluminum sound barrier that can reflect sound waves. Therefore, when the sound waves act on the surface of the material, the sound waves are diffusely reflected, thereby playing a sound absorption effect. In addition, the air in the pores undergoes compression-expansion deformation under the action of sound waves. During this process, part of the sound energy becomes heat energy. This energy conversion is irreversible and also contributes to sound absorption; the pore structure is for the foam metal to absorb sound waves. The ability of aluminum foam has a greater impact, and the ability of foamed aluminum materials with different pore structures to absorb sound waves at different frequencies is different.
In the field of traditional sound barriers, glass wool, asbestos, polyester fibers, etc. are used as sound-absorbing materials. Compared with foamed aluminum, it has the characteristics of self-supporting, high temperature resistance, no release of harmful gases, low moisture absorption and good weather resistance. It is a new generation of sound absorption and sound insulation materials with great potential. Therefore, it is widely used in the field of traffic noise reduction and environmental protection engineering, such as the production of high-efficiency sound barriers, sound-absorbing walls, etc.
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