FRP sound barrier is a common noise control device that can reduce the propagation of noise by reflecting and absorbing sound. The design and manufacturing process of FRP sound barrier directly affects its performance and life. This article will introduce the design process and manufacturing process of FRP sound barrier.
First, the design process.
The following factors need to be considered in the design of FRP sound barriers:
1.Noise sources: Understanding the characteristics of noise sources, including noise frequency, sound pressure level, etc., can help determine the material and structure of the sound barrier.
2.Installation location: Determine the installation location of the sound barrier, and consider its impact on the surrounding environment, such as whether it will affect road traffic and whether it will cause interference to surrounding residents.
3.Acoustic design: According to the characteristics of the noise source and the installation location, the acoustic design is carried out to determine the reflection and absorption performance of the sound barrier.
4.Structural Strength: Consider the structural strength of the sound barrier to ensure its stability during use.
During the design process, the following steps need to be carried out:
1.Collect relevant data: Understand the characteristics of noise sources, installation locations, and the surrounding environment.
2.Perform acoustic simulations: Simulation of sound barriers using acoustic simulation software, their performance and effectiveness.
3.Design the structure: Design the structure and shape of the sound barrier according to the simulation results and actual needs.
4.Determine the material: Choosing the right material for your sound barrier needs to consider factors such as its durability, reflectivity, and absorption properties.
Second, the production process.
The manufacturing process of FRP sound barrier mainly includes the following steps:
1.Prepare materials: According to the design requirements, prepare the required FRP materials and other auxiliary materials.
2.Make a mold: according to the design requirements, make a suitable mold.
3.Mold release agent applied: Mold release agent is applied to the surface of the mold to facilitate subsequent mold release.
4.Infiltrate the glass fiber: The glass fiber is soaked in resin to make it thoroughly impregnated.
5.Laying the fiberglass: The soaked fiberglass is laid in the mold and made to fit snugly against the surface of the mold.
6.Vacuum bag pressure: Put the laid glass fiber into the vacuum bag, remove the air bubbles in it, and make the glass fiber and resin fully combined.
7.Curing treatment: The sound barrier after the vacuum bag is pressed into the curing oven for curing treatment to achieve the required strength and hardness.
8.Demoulding: After the sound barrier is cured, it is removed from the mold and trimmed and sanded to meet the design requirements.
9.Spray Surface Treatment: Spray the surface of the sound barrier to improve its durability and aesthetics.
10.Inspection and acceptance: Inspect and accept the finished sound barrier to ensure that its performance and quality meet the design requirements.
During the production process, the following points need to be noted:
1.Material selection: Choose the right FRP material and resin to ensure the strength and durability of the sound barrier.
2.Mold making: Make a suitable mold to ensure the shape and dimensional accuracy of the sound barrier.
3.Infiltration and laying of glass fibers: Glass fibers are soaked in resin and laid in the mold, so that they fit snugly against the surface of the mold and avoid problems such as bubbles and wrinkles.
4.Vacuum bagging treatment: To ensure the effect of vacuum bagging pressure, remove the air bubbles in it, and make the glass fiber and resin fully combined.
5.Curing process: The temperature and time should be controlled during the curing process to ensure that the sound barrier achieves the required strength and hardness.
6.Demoulding and treatment: Removing the sound barrier from the mold requires trimming and sanding to meet the design requirements, while the surface is sprayed to improve durability and aesthetics.
7.Inspection and acceptance: Inspect and accept the finished sound barrier to ensure that its performance and quality meet the design requirements.