The sound-absorbing and sound-absorbing panels are mainly composed of two parts: a steel structure column and a sound-absorbing and sound-proof screen. The column is the main stress member of the sound barrier. It is fixed on the road anti-collision wall or the embedded steel plate beside the track by bolts or welding; The sound board is the main sound-proof and sound-absorbing component. It is fixed in the H-shaped column slot by high-strength spring clips to form a sound barrier. Noise barriers are mainly used in high-speed railways, highways, viaducts, rail transit, power stations, hospitals, schools, industrial enterprise construction sites and other noise reduction products for acoustic environmental noise control.

The main features of the sound-absorbing board: 

1. Large sound insulation: tested according to GBJ75-1984, GB/T19889.3-2005, average sound insulation 37dB(A)~43 dB(A).

 2. High sound absorption coefficient: According to GB/T20407-2006, the average sound absorption coefficient is 0.90~0.98. 

3. Weather resistance: According to HPF (and screen) 149-2003, HPF (and screen) J 144-2004 standard inspection. 

4. Resistance performance: it reaches A level according to GB/T8626-2006 standard. 

5. Impact resistance: Qualified according to method A in GB/T14153. 

6. Anti-change performance: qualified according to GB/T15227. 

7. Freeze-thaw resistance: qualified according to HPF (and screen) 149-2003. 

8. Light transmittance: qualified according to GB/T2410. 

9. Bending and fracture resistance: qualified according to GB/T9341-2008. 

10. Waterproof and dustproof, beautiful and economical, advanced structure, easy to update.

1. (3) Main features of muffler:

2. 1. Large sound insulation, 15 dB(A)～30 dB(A).

3. 2. High sound absorption coefficient, sound absorption rate ≥0.9～0.98.

4. 3. It has the functions of high sound absorption, high sound insulation, vibration isolation and heat preservation.

5. 4. Fireproof, waterproof and dustproof. Beautiful and durable, good sealing performance.

6. 5. Humanized design, processing and installation according to user requirements.

Highway noise barriers, the amount of noise reduction of highway noise barriers is related to factors such as the frequency of noise, the height of the barrier, and the distance between the sound source and the receiving point. The noise reduction effect of metal sound barriers is closely related to the frequency components of the noise. The noise reduction effect for high-frequency sounds greater than 2000Hz is better than that for mid-frequency sounds around 800-1000Hz, but for low-frequency sounds around 25Hz. Since the sound wave has a relatively long wavelength and is easily diffracted from above the barrier, the effect is poor. Generally, metal sound barriers can reduce high-frequency sound by l0-15dB. The height of the metal sound barrier can be designed according to the distance between the sound source and the receiving point. If the height of the metal sound barrier is doubled, the noise reduction can be increased by 6dB. In order to make the metal sound barrier have a better noise reduction effect, it should be Try to keep the metal barrier close to the sound source or receiving point.

The material of the metal sound barrier: galvanized sheet, aluminum sheet, color steel sheet, iron sheet, etc. The thickness of the metal plate: 0.6mm, 0.7mm, 0.8mm, 1.0mm (can be customized according to customer requirements) Forming thickness: 50cm, 60cm, 80cm, 100cm, etc. (can be customized according to customer requirements) You can customize the color according to the drawing requirements

The company has a dedicated production line of high-density small-hole mesh panels such as horn mesh panels, filter screens, microwave door mesh panels, etc., which have been used in many domestic

Supporting production by large electronics manufacturers. The company has advanced equipment and high degree of automation, from coil to coil, coil to sheet, and sheet to

Various forms of processing and production of sheet materials provide considerate services for customers with different needs. The punching mesh produced has a flat surface and a precision

High, no burrs.

(2) Main features of soundproof room (anechoic room): 

1. 1.The sound insulation is large, and the sound insulation is 20 dB(A)～70 dB(A).

   

2. 2. The sound absorption coefficient is high, and the sound absorption rate is ≥0.85～1.08.

   

3. 3. It has the functions of high sound absorption, high sound insulation, vibration isolation and heat preservation.

   

4. 4. Fireproof, waterproof and dustproof. Beautiful and durable, good sealing performance.

   

5. 5. Humanized design, processing and installation according to user requirements.