Supply Hao Feng flat perforated flat perforated acoustic sound barrier wall can be customized

High-speed rail flat perforated sound barrier dedicated high-speed rail flat perforated Sound Barrier Description: perforated acoustic board a plane of the acoustic panels is not only good sound absorption effect also has excellent weather durability guaranteed service life of the second panel by a oxidation treatment aluminum coil system sound barrier material selection, the general principle is the good performance noise reduction, structural safety and reliability, materials, affordable, low installation cost, durable, long life, landscape coordination, nice and so on. Specifically described as follows: (1) large noise: not less than the average amount of noise 35dB; (2) high absorption coefficient: the average absorption coefficient of not less than 0.84; (3) weather durability: The product should have the water resistance, heat, UV, rain temperature changes will not reduce the performance or quality of the exceptions. Products using aluminum coil, galvanized coil, glass wool, H galvanized steel column surface outside the grounds of anti-corrosion life of more than 15 years. (4) appearance: choose a variety of colors and shapes are combined with the surrounding environment, the formation tapestry. (5) Economic: prefabricated construction, improve work efficiency, shorten construction time, saving construction costs and labor costs. (6) Convenience: parallel with other products to install, easy maintenance, easy to replace. (7) Portability: sound-absorbing board series of products with light weight characteristics, load bearing reduce elevated light rail, elevated road, can reduce the cost structure. (8) Fire: superfine wool, because of its high melting point, non-flammable, fully meet the requirements of environmental protection and fire code. (9) High intensity: the combination of different climatic conditions of the region, in the structure designed to fully test the virtual wind loads. Increase the strength of the production line by pressing the groove. (10) waterproof, dustproof: material design takes full account waterproof, dustproof, dust or rain in the environment the sound absorption performance is not affected, construct drainage measures have been set for dust, avoid stagnant water inside member. Micro-perforated cavity resonance absorption of sound absorption performance in the rain affected the environment, for the low-frequency noise is particularly evident. (11) Durable: product design has been fully taken into account the wind load of the road, crash safety transportation vehicles and full gas fake outdoor corrosion. Products using aluminum coil, galvanized coil, glass wool, H galvanized steel column surface. No corrosion within the warranty period, the same type, sound absorption, sound insulation effect is not reduced. As having a high strength, light weight and other characteristics do not corrode planar plane perforated perforation sound barrier sound barrier sound barrier used in road transport, urban rail sound barriers, sound barriers and other high-speed rail project as a sound barrier absorption member in the surface layer, noise frequency characteristics as needed, customized with different perforation rate, the aperture of the metal micro-perforated acoustic board. Flat perforated surface acoustic barrier, there are many holes, after the sound into the small hole in the wall structure will casually reflected in until most of the acoustic energy is consumed, into energy, to the effect of noise. Flat perforated sound barrier by absorption mechanism is divided into: 1, from the surface to the interior by many of the small open channels so that sound attenuation of porous materials to absorb high-frequency sound waves mainly, fibrous tissue accumulation of various organic or inorganic fibers Its products and open-cell foam and porous structure of expanded perlite products. 2, by acoustic resonance action film-like material of a flexible material, or a sheet-like material and the perforated plate (various plate material or metal perforated plate and prepared to absorb IF). The above material is used together with the expansion of acoustic range, increase the absorption coefficient. Control noise. In addition to air porous materials absorb sound, but also weaken the solid sound and vibration air chamber air sound caused. Filled within the porous material composed of a variety of sheet-like material composite structure, to improve the sound insulation capacity and reduce the structural weight.