1. Sound absorbing tip

The sound absorbing tip is a special sound absorbing structural material for strongly absorbing the sound field. It is formed by cutting with a porous (or fibrous) material, and is made into a tapered or pointed sound absorbing body, which is firm and does not deform. The sound-absorbing tip is suitable for a strong airflow environment. The main object is a high-quality anechoic chamber, which is more effective for low-frequency absorption. It can eliminate standing waves and achieve the requirement of avoiding echo. The sound absorption coefficient of low cut-off frequency is greater than 0.99. The V-shaped and W-shaped sound-absorbing tips made of polyester have the characteristics of being smaller in size and more reasonable than the ordinary sound-absorbing tip.

2. Diffuser

In addition to all the functions of the flat sound absorbing panel, the diffuser sound absorbing panel can conduct sound waves at different angles through its three-dimensional surface, eliminating blind spots in the diffusion process, improving sound quality, balancing sound, thinning the accent, and weakening the treble. , compensate for the bass.

Product structure:

The medium-density fiberboard is opened in the form of a three-dimensional triangular or cylindrical groove, the structure of the sound-absorbing material with a round hole on the back, the painted surface (can be selected according to customer requirements), and the fire-resistant sound-absorbing cloth is backed.

Application range:

TV station, cinema, opera house, concert hall, conference center, gymnasium, sound room, home, shopping mall, hotel, karaoke, lounge, restaurant, etc.

3. Aluminum honeycomb perforation

The structure of the aluminum honeycomb perforated sound absorbing panel is a perforated panel and a perforated backboard, and is directly bonded to an aluminum honeycomb sandwich structure by a high quality adhesive and an aluminum honeycomb core, and a sound absorbing cloth is attached between the honeycomb core and the panel and the back panel. Since the honeycomb core in the honeycomb aluminum plate is divided into a plurality of closed cells, the air flow is prevented, the sound waves are hindered, the sound absorption coefficient is increased (up to 0.9 or more), and the strength of the plate itself is increased, so that the size of the single plate can be To achieve greater, further increase the freedom of design. According to the indoor acoustic design, different perforation rate design can be carried out to control the sound absorption coefficient of the combined structure within a certain range, which not only achieves the design effect, but also can reasonably control the cost. By controlling the perforation aperture and hole distance, and changing the perforation rate according to the customer's requirements, the maximum perforation rate is <30%. The aperture is generally selected from the specifications of ∮2.0, ∮2.5, ∮3.0, etc. The back plate perforation requirements are the same as the panel, and the sound absorbing cloth is adopted. Sound-absorbing materials such as high-quality non-woven fabrics.

4. Wooden perforations

The perforated gypsum board has a cylindrical through hole penetrating the front and the back of the gypsum board, and a backing material having a gas permeable backing material and a sound absorbing material capable of absorbing incident sound energy are attached to the back surface of the gypsum board. The sound absorption mechanism is that there are a large number of tiny connected pores inside the material, and the sound waves along the pores can penetrate into the interior of the material, and friction with the material converts the acoustic energy into heat energy. The sound absorption characteristic of the porous sound absorbing material is that the sound absorption coefficient gradually increases as the frequency increases, which means that the low frequency absorption has no high frequency absorption.