Sound-insulating plate for reducing noise of high-speed train
A sound insulation board and noise reduction technology, which is used in noise absorption devices, buildings, etc., can solve the problems of high price of metal sound insulation materials, affect sound insulation, and poor waterproof performance, and achieve good appearance quality, stable chemical performance, and good weather resistance. sexual effect
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[0012] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with specific embodiments.
[0013] The invention provides a sound insulation board for high-speed rail noise reduction, which includes a skeleton and a filler, the filler fills the gaps in the skeleton; the skeleton is formed by bonding skeleton particles, and the filler includes filler particles, a binder and a coupler Joint agent; the skeleton particles include large skeleton particles and small skeleton particles, the particle diameter of the large skeleton particles is twice the particle diameter of the small skeleton particles; the particle diameter of the skeleton particles is 2-8 times the particle diameter of the filling particles.
[0014] Further, the average particle diameter of the large skeleton particles is 0.8 mm, and the average particle diameter of the small skel...
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