Electronic Tuning Melamine sponge is a compressed melamine sponge which is processed by high temperature hot pressing. It can be compressed into various high density melamine sponges with various compression ratios, thicknesses and specifications according to the application and actual requirements. Different compression ratios have different tuning effects and also affect the sound quality.
Due to the low-density melamine sponge (6-12KG / m) opening rate of 97%, the three-dimensional grid system (L / D phase grid length to diameter ratio of about 10-20) deep sound can quickly and efficiently enter the foam And converted into mesh vibration is consumed, thereby effectively eliminating the radiated sound. These two rebounds reduce the sound. The ordinary foam is generally a semi-open structure, and the opening ratio is low, and a semi-closed pore structure occurs, and the semi-opening structure may seriously affect the sound insulation performance.
Electronic tuning melamine sponge sound absorption principle:Melamine sponge absorb the sound waves emitted by the speaker, so that the sound waves will not be refracted or reflected, ensuring that the sound confusion and blur caused by sound wave refraction and reflection no longer occur.
Tuning melamine sponge is mainly divided into: earphone tuning sponge, mobile phone tuning sponge, mobile phone silencer sponge, speaker tuning sponge, etc., used in the electronics, speaker industry to remove noise and shock absorption. Currently used in high-end mobile phones Acoustic silencer melamine sponge, generally used is a 0.75-1mm thick 5 times-7 times compressed melamine sponge as a silencer for mobile phone speakers and earpieces.
More details on www.lfsponge.com