Aluminum Sound-Absorbing Board 3

FOB Price: US $60 / Square Meter
Min. Order: 5 Square Meters
Min. Order FOB Price
5 Square Meters US $60/ Square Meter
Payment Terms: L/C, T/T, D/P
Aluminum Sound-Absorbing Board 3

Product Description

1.Application range of foamed aluminum sound-absorbing board
The product is used for concert halls, cinemas, theaters, recording studios, studio, dance halls, gymnasiums, subway stations, waiting halls, waiting rooms, hotel lobbies, superstores, exhibition halls, office halls, radio rooms, computer rooms and other places to play a role in controlling sound reverberation time.
The product is used for piping mufflers, muffling elbows, static pressure boxes and especially suitable for air conditioners and ventilation equipment in clean workshops, food production workshops, pharmaceutical factories, precision instrument manufacture workshops, laboratories, wards, operating rooms, restaurant dining rooms, ship cabins, auxiliary engine rooms, passenger cabins and other places to play a role in reducing and eliminating noise.
The product is used for urban light rails, elevated roads, traffic arteries, highways, railways, overpasses, cooling towers, open-air high-voltage substations, concrete mixing fields and other places to play a role of sound absorbing-insulating barrier.
The product can be used for diesel engines, generators, motors, internal combustion engines, refrigerators, air compressors, airplanes, trains, automobiles, ships, boilers, forging equipment, fans and other equipment to play a role in absorbing, insulating and eliminating sound.
2.Performance test result of foamed aluminum sound-absorbing board
Pore characteristic and volume density

Main pore size: three specifications, the common pore size is 1.6 mm.

Porosity: 60-80% (68-78% when the pore size is 1.6 mm)

Through pore rate: 85-95%(90-95% when the pore size is 1.6 mm)

Volume density:0.5-1.10g/cm3(0.60-0.85 g/cm3 when the pore size is 1.6 mm)

Flammability: determined according to GB/T5464 (Shanghai Quality Supervision and Inspection Station for Fire-Fighting Products)

The combustion performance of the sound-absorbing board accords with the provisions of GB8624 non-combustible materials (Class A): belonging to non-combustible materials.
Moisture-absorbing performance: determined according to GB5480.7 (Heat-Insulating Material Quality Supervision and Inspection Station of Shanghai Building Science Research Institute)
Mass moisture absorption rate W1<0.1%
Volume moisture absorption rate W2<0.1%
mechanical property: determined by referring to GB/T1039-1040 (Building Material and Component Quality Supervision and Inspection Station of Shanghai Building Science Research Institute)
Compressive Strength δc:8.61Mpa (under the condition of 10% compression)
Bending Strengthδw:8.06Mpa
Tensile Strengthδb:3.41Mpa
Aging Resistance: determined according to GB/T14522 (Inspection Station of Shanghai Building Science Research Institute)
Through 250-hour detection, no color change, shedding or aging phenomenon appears.
Electromagnetic Shielding Property: determined according to GB/12190 and SJ20524 (Jiangsu Network and Electromagnetic Compatibility Test Station)
Shielding efficiency 40-55dB (80KHz-1.5GHz determined in frequency range)
Sound-absorbing performance: determined according to GBJ47 and GBJ88 (Acoustics Institute of Tongji University)
Average Sound Absorption Coefficient(125-4000Hz determined in frequency range)
Noise Reduction Coefficient NRC0.64(125-4000Hz determined in frequency range)
Sound insulation performance: determined according to GBJ75(Acoustics Institute of Tongji University and Inspection Station of Shanghai Building Science Research Institute)
Air sound weighted sound insulation index Rw 28.0dB (namely sound insulation index la)
Mean sound insulation index Ra  24.5dB (125-4000Hz determined in frequency range)

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