Damping sound imsulation board
Publish date：2018-06-25 Views：1203
Material Science:
The panels and orifice plates are made of galvanized steel sheets, and can be made of cold rolled flat plates, stainless steel and aluminum plates according to user requirements. The filling material is made of rock wool board, and different bulk density is selected according to different sound insulation requirements. Protective material is made of alkali free plain glass cloth or flame retardant non-woven fabric. Polyethylene film can be used for special dustproof. Besides the stainless steel material, the soundproof boards made of other materials can be sprayed on the surface.
Specifications:
The thickness of sound insulation board is two kinds: 50mm and 100mm. According to user requirements, sound insulation boards with thickness of 150mm and 200mm can be made. The width of the sound insulation board is 1215mm, and the minimum width is 360mm. The maximum length of the sound insulation board: 4500mm.
Characteristic:
● Standardization design, factory manufacturing
● Reliable assembly structure and good sealing performance
● Strong weather resistance, easy to install and fast
● According to the requirements of different sound insulation grades, we provide different structural forms.
● fire retardant and flame retardant performance of A1 grade
Acoustic performance:
Frequency doubling center frequency（Hz）
Thickness of sound insulation board
Sound absorption coefficient C
50mm
Transfer loss
STC
125
250
500
100
2000
4000
NRC
0.24
0.74
1.08
1.09
1.01
0.96
1.00
100mm
0.66
1.22
1.12
1.06
1.03
0.96
1.10
50mm
17
24
32
42
50
53
35
100mm
21
33
43
54
57
62
43
