Sales hotline 3 Manager Wang Glass wool is made of centrifugal glass wool felt, which is processed using Owens Corning's (abbreviation) unique patented centrifugal technology to fiberize molten glass and add an environmentally friendly formula binder based on thermosetting resin. The product is an elastic felt-like body made of glass fiber with a diameter of only a few microns, and different moisture-proof veneers can be selected for online compounding according to usage requirements. It has a large number of tiny air pores, which enable it to play the roles of thermal insulation, sound absorption and noise reduction, and safety protection. It is a material for thermal insulation, sound absorption and noise reduction of steel structure buildings. Glass wool belongs to a category of fiberglass and is a man-made inorganic fiber. Using quartz sand, limestone, dolomite and other natural ores as the main raw materials, combined with some soda ash, borax and other chemical raw materials, it is melted into glass. In the melted state, it is blown into floc-like thin fibers with the help of external force. The fibers are three-dimensionally crossed and entangled with each other, showing many small gaps. This gap can be regarded as a pore. Therefore, glass wool can be regarded as a porous material with good thermal insulation and sound absorption properties. Internal Structure Edit The internal fibers of centrifugal glass wool are fluffy and intertwined, with a large number of tiny pores. It is a typical porous sound-absorbing material and has good sound-absorbing properties. Centrifugal glass wool can be made into wall panels, ceilings, space sound absorbers, etc. It can absorb a large amount of sound energy in the room, reduce reverberation time, and reduce indoor noise. Main Features Editor The sound absorption properties of centrifugal glass wool are not only related to thickness and bulk density, but also to factors such as covering materials and structural construction. In construction applications, it is also necessary to take into account many aspects such as cost, aesthetics, fire protection, moisture resistance, dust, and aging resistance. It can be cut at will and is antibacterial and mildewproof, and is resistant to aging and corrosion to ensure a healthy environment. It can be cut and shaped at will. Stable physical properties. Passed the standard Australia and New Zealand/. Certification. Certification. EU certification. Fire protection rating certification. National standard B/- Scope of application. Used in industrial plants, warehouses, public facilities, exhibition centers, shopping malls, and various indoor playgrounds, sports venues and other buildings. Excellent thermal insulation, sound absorption and noise reduction. Detailed introductionEdit Centrifugal glass wool is a porous sound-absorbing material and has good sound-absorbing properties. The reason why centrifugal glass wool can absorb sound is not because of its rough surface, but because it has a large number of tiny pores and holes that connect the inside and outside. When sound waves are incident on centrifugal glass wool, the sound waves can enter the material along the pores, causing the vibration of air molecules in the gaps. Due to the viscous resistance of the air and the friction between the air molecules and the pore walls, the sound energy is converted into heat energy and lost. Sound absorption performance: Centrifugal glass wool has good sound absorption performance for medium and high frequencies. The main factors affecting the sound absorption performance of centrifugal glass wool are thickness, density and air flow resistance. Density is the weight of material per cubic meter. Air flow resistance is the ratio of air pressure and air flow velocity on both sides of the material per unit thickness. Air flow resistance is the most important factor affecting the sound absorption performance of centrifugal glass wool. The flow resistance is too small, indicating that the material is sparse, air vibrations can easily pass through, and the sound absorption performance is reduced. The flow resistance is too large, indicating that the material is dense, air vibrations are difficult to transmit, and the sound absorption performance is also reduced. For centrifugal glass wool, there is flow resistance in sound absorption performance. In actual engineering, it is difficult to measure air flow resistance, but it can be roughly estimated and controlled through thickness and bulk density. , as the thickness increases, the sound absorption coefficient of medium and low frequencies increases significantly, but the high frequency does not change much (high frequency absorption is always larger). , the thickness remains unchanged, the bulk density increases, and the mid- and low-frequency sound absorption coefficient also increases. However, when the bulk density increases to a certain level, the material becomes dense, the flow resistance is greater than the flow resistance, and the sound absorption coefficient decreases instead. For centrifugal glass wool with a thickness exceeding /3 and a bulk density of /3, the sound absorption coefficient at low frequency is approximately . When the thickness continues to increase, the low-frequency sound absorption coefficient gradually increases. When the thickness is greater than the above, the low-frequency sound absorption coefficient will also be close to. When the thickness remains unchanged and the bulk density increases, the low-frequency sound absorption coefficient of centrifugal glass wool will also continue to increase. When the bulk density approaches /3, the sound absorption performance reaches the maximum value, and the thickness and frequency are close to... When the bulk density exceeds /3, the sound absorption performance decreases instead because the material becomes dense, and the mid- and high-frequency sound absorption performance is greatly affected. When the bulk density exceeds 3/3, the sound absorption performance decreases a lot. The thickness of sound-absorbing glass wool commonly used in architectural acoustics is .,,, and the bulk density is ,,,,,/3. Usually thick, -/3 centrifugal glass wool is used. Sales Phone 3 Manager Wang
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