With respect to this product, sound insulation and damping materials are installed in the aluminum floor of railway carriage through surface pasting, inner filling, flame plating and some other ways, in order to reflect sound or convert sound energy to heat. Then the interior noise of the train is reduced to a lower level.
The noise reduction materials used in the product meet the requirements of environmental protection and fire protection on CRH trains. Flame retardant additives of high performance are added in the materials, which meet A level on fire protection of TB/T3237-2010 Flame Retardant Technical Specification of Decorating Materials for CRH Unit Train, and oxygen index is Level A, smoke density and toxicity are all qualified. The characteristics of materials meet the highest level ofDIN5510-2:2009: Fire Prevention and Protect in Railway Vehicle, Parts 2: Combustibility and Fire Side Effects of Material and Parts; Grading, Requirements and Testing, reaching S-5 of combustible, SR-2 of smoke generation, ST-2 of drip content generation. The materials have no halogen, asbestos, heavy metals and other harmful substances, meeting the TB/T3139-2006 Decorating Materials and Indoor Air Limit of Harmful Substance for Railway Locomotive and Vehicle standards.
Mainly applied in decreasing vibration and noise of aluminum floor for rail transit vehicles such as regular trains, high-speed trains, subway vehicles, light rails, etc.
1.This material can reduce noise and vibration of aluminum floor through surface pasting, inner filling, flame plating and some other ways, and it has excellent effects. The combination sound transmission loss can reach over 40 dB(A).
2.It has good weather resistance and can work normally for a long time between -40℃ and140℃.
3.It is featured with fire protection, environmental protection and low bulk specific gravity, meeting the usage requirements of rail transit vehicles.
4.It has the advantages of good adhesiveness and good filling to the aluminum profile.
5.It has a long life performance and flat appearance at low costs.