First, the glass fiber cotton production technology of glass fiber cotton is melted by the lime, minerals, quartz powder in a furnace, the high-speed centrifugation or spray system, drawn from 6 microns in diameter or less artificial inorganic fibers, and then the molding equipment into various products. Henan wool Second, the unique advantages of glass fiber cotton The product has a low thermal conductivity, density of small, chemical stability, non-aging, non-flammable and a series of advantages. Its good workability, easy cutting, no on-site loss, no harmful gases, long-term performance of the same. Third, the main technical indicators: bulk density: 32-100kg / m3 fiber diameter: 500Hz) of the absorption coefficient is close to 1 up. When the thickness continues to increase by the 5cm, low-frequency sound absorption coefficient gradually increased, when the thickness is greater than 1m or more, 125Hz low frequency sound absorption coefficient will also be close to unity. Centrifugal glass wool can be made into wall, ceiling, space absorber, etc., can absorb a lot of sound energy in the room, reducing the reverberation time, reduce indoor noise. With good sound absorption properties. Centrifugal glass wool for sound absorption in a better high-frequency performance. The main factors affecting the centrifugal glass wool sound absorption performance is the thickness, density and air flow resistance and the like. Density is the weight per cubic meter of material. Than the material side air pressure and air flow resistance is the unit thickness of the air flow. Air flow resistance is the most important factor in centrifugal glass wool sound absorption performance impact. Flow resistance is too small, sparse explanatory material, easily pass through the air vibration, acoustic performance degradation; flow resistance is too large, explanatory material dense, difficult to incoming air vibration, acoustic performance also dropped. For centrifugal glass wool is concerned, there is an optimum flow resistance, sound absorption properties. Editor: Liu