Environment-friendly fireproof acoustic board

Abstract

The invention discloses an environment-friendly fireproof acoustic board which comprises a bottom board and a base board, the bottom board and the base board are made of metal materials, the thickness of the base board is 0.5-1 cm, a plurality of arc-shaped protruding blocks are arranged on the face, away from the bottom board, of the base board, and sound absorption holes are formed in the other face, opposite to the arc-shaped protruding blocks, of the base board. The sound absorption holes and the arc-shaped protruding blocks are coaxially arranged, holes are formed in the arc-shaped protruding blocks, the width of each arc-shaped protruding block is 2-3 cm, the height of each arc-shaped protruding block is 0.5-1 cm, the fillet of each arc-shaped protruding block is 0.2-0.5 cm, the sound absorption holes are funnel-shaped, the width of each sound absorption hole is 1-2 cm, and the angle of each sound absorption hole is 30-50 degrees. According to the invention, sound waves enter the sound absorption holes through the holes, and drive air to vibrate in the sound absorption holes, so that the vibrating air is continuously converted into heat energy, the sound wave energy is attenuated, the sound waves are reflected by the arc-shaped convex blocks to avoid sound gathering, and the bottom plate and the base plate made of metal materials have good fireproof performance and are environment-friendly.

Description

technical field [0001] The invention relates to the technical field of sound decoration materials for stage performances, in particular to an environment-friendly fire-proof and sound-absorbing board. Background technique [0002] Sound-absorbing panels are arranged on the inner wall of the performance hall where stage performances are organized to eliminate sound quality defects such as echo and sound focus in the hall to ensure the sound effect of the performance. However, most of the existing traditional sound-absorbing panels are made of wood. , mineral wool, cloth and other materials are made by perforating or cutting into wedges, but the strength of such sound-absorbing panels is weak, and it is difficult to meet the high demand for sound quality in current stage performances. The new sound-absorbing panels use chemical agents and fibers Composite, but its production work is more complicated, the production cost is higher, it does not have good fire resistance and is n...

AI Technical Summary

Problems solved by technology

[0002] Sound-absorbing panels are arranged on the inner wall of the performance hall where stage performances are organized to eliminate sound quality defects such as echo and sound focus in the hall to ensure the sound effect of the performance. However, most of the existing traditional sound-absorbing panels are made of wood. , mineral wool, cloth and other materials are made by perforating or cutting into wedges, but the strength of such sound-absorbing panels is weak, and it is difficult to meet the high demand for sound quality in current stage performances. The new sound-absorbing panels use chemical agents and fibers Composite, but its production work is more complicated, the production cost is higher, it does not have good fire resistance and is not environmentally friendly

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