Non-cotton super-microporous metal noise barrier

Abstract

The invention relates to a non-cotton super-microporous metal noise barrier. The non-cotton super-microporous metal noise barrier replaces harmful sound absorbing materials such as rock wool, glass cotton and so on and is shown in figure 1. The non-cotton super-microporous metal noise barrier comprises a microporous metal panel and a metal back plate; the microporous metal panel is an aluminum plate; a plurality of small holes with different shapes and apertures are formed in the surface of the microporous metal panel; the microporous metal panel is made of a galvanized steel sheet; the microporous metal panel and the metal back plate are assembled together in a buckling manner after being bent and formed; and three reinforcements having effects of supporting and enhancing the rigidity are additionally mounted in a chamber, close to the microporous metal panel, between the microporous metal panel and the metal back plate in a horizontal direction. The non-cotton super-microporous metal noise barrier has passed detection of national building materials test center and has obvious sound absorbing and insulating effects; in addition, the non-cotton super-microporous metal noise barrier has the advantages of simple structure, convenient production and mounting, rivetless connection, beautiful and elegant appearance, fire prevention and durability, can be widely applied to noise insulation for rail transit, expressways and various machineries and can be also used for ceilings, large-sized houses, classrooms and so on.

Description

technical field [0001] The invention relates to a cotton-free ultra-microporous metal sound barrier, which belongs to the technical field of sound absorption, insulation and noise reduction. Background technique [0002] As we all know, roads, railways, large chemical plants, exhibition halls, airports and other places will generate a lot of noise, which seriously interferes with the daily life of surrounding residents, such as rest, sleep, and study, and will also affect the hearing of the staff on duty. There is a lot of evidence that noise can also cause many diseases. With the development of industry and the improvement of people's living standards, relevant departments have also formulated stricter noise standards. Noise reduction is an urgent problem to be solved, and setting up sound barriers has become an effective measure for noise control. [0003] At present, the noise reduction materials used in these large places can be divided into metal sound barriers and non...

AI Technical Summary

Problems solved by technology

Non-metallic sound barriers are mainly filled with sound-absorbing materials such as rock wool and glass wool, which are harmful to health; sandstone panels do not have this shortcoming, but they are heavy and not as beautiful as metal panels

However, the microporous metal panels on the market now have large holes, which weaken the transmitted sound energy. Although they play a role in sound insulation, the sound absorption effect is not good, and they are generally connected by rivets, which are easy to rust and break off. The overall appearance is not beautiful, and the structure is more complicated. High production, installation and maintenance costs

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