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Composite sound-absorbing perforated gypsum board, non-metallic sound-absorbing board; Porous sound-absorbing materials, such as centrifugal glass wool, rock wool, mineral wool, plant fiber spraying, etc. The sound absorption mechanism is that there are many tiny pores inside the material, along which sound waves can deepen the inside of the material, and conflict with the material to convert sound energy into heat energy. The sound absorption characteristic of porous sound absorption materials is that the sound absorption coefficient gradually increases with the increase of frequency, which means that low-frequency absorption is not as good as high-frequency absorption. Perforated board with air layer between wall surface or ceiling has sound absorption function even if the sound absorption function of the material itself is poor, such as perforated gypsum board, wood board and metal board ..

2023/03/02 16:51:53

Perforated sound-absorbing composite panel is 600 * 600 * 15. The sound absorption coefficient of the composite sound-absorbing panel is 0.82. The ultra light weight is conducive to fixed installation. The white natural color is flat and clean. The practical methods include pasting perforated sound absorption composite board and putting sound absorption board on the keel glass wool surface. 600 * 600 rock wool sound absorption board/595 * 595 composite rock wool sound absorption board 15mm perforated composite board/20mm composite perforated sound absorption board/30mm composite sound absorption perforated board. Thermal insulation: its thermal insulation and heat insulation performance is six times that of glass, three times that of clay and ten times that of ordinary concrete; . Light weight height: 1/. of ordinary concrete ..

2023/01/29 22:08:15

Perforated gypsum board, punched calcium silicate board, punched screen board, Huajiang Building Materials is a manufacturer of gypsum powder, which is widely used in various industrial buildings due to its advantages of light weight, fire prevention, sound insulation, heat insulation, good processability (planable, nailable, sawable), convenient construction, good dismountable performance, and increased use area Civil buildings, especially in high-rise buildings, can be used as internal wall materials and decoration to produce gypsum powder, PVC faced gypsum ceiling, paper faced gypsum board, mineral wool board, light steel keel, paint keel. The company was founded in 2000 and covers an area of land ..

2023/01/29 21:44:07

Perforated gypsum board and sound-absorbing ceiling are new, light, high, environmental friendly and energy-saving decorative materials. The system composed of ceiling and related accessories is designed in full accordance with the user's requirements, with thermal insulation, sound insulation, fire prevention, moisture-proof and other performances, as well as various decorative effects. Main characteristics Waterproof, fireproof, anti sagging, sound insulation, clean, environmental protection Product performance Fireproof performance: fire-resistant material B1, in line with the Chinese standard GB8624-1997 and the system configuration is Class A Thermal resistance value: average RFactor (at 75 ° F or 24 ° C) Moisture proof, anti sagging performance: applicable to temperature 30 ℃ and relative humidity ..

2023/01/29 20:54:27

Perforated gypsum board gypsum board composite polyester fiber cotton: polyester fiber cotton is also called sound-absorbing cotton. The sound-absorbing cotton is made of melt blown polyester fiber sound-absorbing cotton fiber, which is a kind of non-woven material composed of 1-4 micron diameter microfiber and 20-30 micron diameter staple fiber. The processing method of blow melting can realize the production of bulky and light quality products with finer fibers. Difference between glass wool and polyester fiber cotton: glass wool and polyester fiber cotton (polyester fiber sound absorption cotton). They are different, but the sound absorption effect is basically the same. It is worth noting that glass fiber is not environmentally friendly and is not convenient for construction. Everyone knows that glass fiber can be obtained ..

2023/01/29 16:19:56

For the purpose of sound absorption and noise reduction in large spaces such as stadiums and workshops, composite sound absorption punched calcium silicate boards and perforated sound absorption composite gypsum boards often use sound absorbers with centrifugal glass wool as the main sound absorption material. The sound absorber can be made into plate, column, cone or other shaped bodies according to requirements. The interior of the sound absorber is filled with centrifugal glass wool, and the surface is wrapped with sound permeable surface layer. Since the sound absorber has multiple surfaces, the sound absorption efficiency is very high. The difference between glass fiber cotton (glass fiber cotton) and polyester fiber cotton is known to those who are familiar with architecture. In both home decoration and tooling construction, sound insulation cotton is often an indispensable sound insulation material. Type of sound insulation cotton ..

2023/01/29 16:13:51

The reason why perforated paper faced gypsum board is covered with a layer of mulberry paper or thin acoustic felt to increase sound absorption. The main factors affecting the sound absorption performance of paper perforated gypsum board are the perforation rate and the size of the rear cavity. The perforation aperture and the thickness of the gypsum board have little influence on the sound absorption performance. When the perforation rate gradually increases from 2% to 15%, the surface area occupied by the hole increases, the probability of air molecules entering the resonance cavity to participate in resonance increases, and the sound absorption capacity increases. If the sound absorption material is placed in the rear cavity, the sound absorption is stronger. The perforation rate will affect the resonance frequency. When the perforation rate increases, the resonance frequency will shift to the high frequency, and the offset is proportional to the root square of the perforation rate. Perforation rate plus ..

2023/01/29 16:02:10

How to construct the acoustic ceiling: 1. Construction preparation 1. Prepare the main parts, accessories and cover plates of the skeleton. 1. 2 The keel shall be firmly welded and painted. 1. 3 Suspended ceiling construction shall be carried out after wall decoration. 1. 4 Allocate corresponding labor force and prepare machines, tools and labor protection articles. 2. Key points of construction 2. 1 Installation of ceiling framework 2. 1. 1 Select main keel parts and accessories according to design requirements, and prepare consolidation materials and construction tools. 2. 1. 2 On the structural base course, snap lines according to the design requirements to determine the keel and lifting point positions. Lifting points shall be added at the end or extension of the main keel. Determine the ceiling elevation. At ..

2023/01/29 15:51:45

Perforated gypsum plaster board for sound absorption is made of special height gypsum plaster board as the base material, and the board core is added with special reinforcement materials. It is made through perforation, cutting, pasting fiber layer, coating, drying and other processes. It is an ideal sound absorption material for ceiling partition. Perforated gypsum board for sound absorption is a combination of decorative gypsum board and paper-based gypsum board as the basic board, with cylindrical holes running through the front and back of the gypsum board, and the back of the gypsum board is pasted with breathable backing materials and materials that can absorb incident sound waves. The edge shapes of perforated gypsum board for sound absorption include right angle shape and chamfer shape. Perforated gypsum plaster board for sound absorption is specially made ..

2023/01/28 23:50:36

Size of perforated sound-absorbing gypsum board: 1200 * 3000 or 1200 * 2440 gypsum board is a material made from building gypsum as the main raw material. It is a kind of building material with light weight, high strength, thin thickness, convenient processing, sound insulation, heat insulation, fire prevention and other good performance, and is one of the new lightweight boards currently focused on development. Gypsum board has been widely used in internal partition walls, wall cladding (instead of wall plastering layer), ceilings, sound absorption boards, ground base boards and various decorative boards of residential buildings, office buildings, shops, hotels, industrial plants and other buildings. All the sizes are constructed according to the designer ..

2023/01/12 23:15:40