Metal Wall For Noise Isolation Of Mechanical Equipment

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Metal walls for noise isolation of mechanical equipment are indeed an effective means of noise control, especially widely used in industries such as manufacturing, construction or transportation. The following is a summary of its working principle, advantages and key design points: The core principle of noise reduction through metal walls The Mass Law: The sound insulation performance of a single-layer wall is directly proportional to the mass per unit area. Metal walls (such as steel plates and aluminum plates) have a high density and can effectively reflect and absorb sound wave energy, reducing the transmission of medium and high-frequency noise. The function of the damping layer: Metals themselves are prone to resonance and secondary noise. Therefore, damping materials (such as asphalt coatings, viscoelastic polymers) are often added in the design to suppress vibration and enhance the low-frequency sound insulation effect. Composite structure design: The adoption of a "sandwich" structure (such as steel plate - sound-absorbing cotton - steel plate) can combine quality and sound absorption performance, significantly enhancing the sound insulation effect across the entire frequency range. 2. Advantages of metal sound insulation walls High strength and durability: Metals (such as galvanized steel and aluminum alloy) are impact-resistant and corrosion-resistant, making them suitable for harsh industrial environments. Modular installation: Standardized panels can be prefabricated, and they can be quickly assembled and disassembled to meet temporary or permanent needs. Multi-functional integration: It can be combined with sound-absorbing materials (rock wool, glass fiber), mufflers or ventilation structures, taking into account both sound insulation and functional requirements.

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