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Rubber Plate ( Inside and Outside)
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The sound absorbing panel of the inner and outer walls of the fuel tank is made up of a polymer damping material and a dense inorganic material. It can be installed on the inner wall and the outer wall of the fuel tank. The vibration reduction and sound insulation can reduce the vibration of the fuel tank wall caused by the vibration of the iron core to achieve noise reduction. effect.
The inner and outer sound absorbing panels of Hengrui fuel tank have two structures. One is the sound absorbing panel used on the outer wall of the fuel tank, which is composed of the soundproof layer and the damping layer, and the other is the sound absorbing panel used for the inner wall of the fuel tank, which is composed of the soundproof layer, the damping layer and the oil resistant layer. The structure is simple, easy to install, and can be customized according to the transformer model.
The inner and outer wall sound absorbing panels of Hengrui fuel tank have the following technical advantages:
1. Excellent damping characteristics
The damping layer of the sound absorbing panel inside and outside the wall of Hengrui fuel tank is mainly made of high-viscosity elastic polymer non-dry material, which has a large damping coefficient and plays a good damping effect.
2. Excellent noise reduction characteristics
The sound insulation layer of the inner and outer wall sound absorbing panels of Hengrui fuel tank can block the sound transmission by weakening the transmission sound energy. The sound insulation layer and the damping layer can absorb the sound energy in two ways. First, the sound energy is converted into heat energy dissipation, and the second is the sound. Can be converted into bits to store. The two materials work together to provide excellent sound absorption characteristics, which effectively reduces transformer noise.
3. Excellent oil resistance, heat aging resistance
The oil-resistant layer of the inner wall of the constant-core fuel tank is made of high-oil resistance and high damping. The nitrile group in the nitrile rubber has a very strong polarity and is a high-energy group. Therefore, the nitrile rubber has a very strong polarity. It has excellent oil resistance. In addition, we also optimize the formulation by selecting high-quality anti-aging agents, reinforcing agents, plasticizers, etc., so that the sound-absorbing panels on the inner wall of Hengrui fuel tank have excellent heat-resistant oil aging properties.
4. Excellent heat aging resistance and weather resistance
The inner and outer damping layer of Hengrui fuel tank is made of butyl rubber. The butyl rubber is synthesized from isobutylene and a small amount of isoprene. It has less unsaturated bonds and good thermal stability.
5. Good electrical insulation
The rubber material is an electrically poor conductor with a high electrical resistivity, so the rubber is generally used as an electrically insulating material. The damping layer of the sound absorbing panel inside and outside the wall of Hengrui fuel tank is made of rubber material and has good electrical insulation.
6. Leading molding process
The inner and outer wall sound absorbing panels of Hengrui fuel tank are prepared by high temperature and high pressure vulcanization process to ensure the consistency of product performance.
The test results of the customer (partial) of the sound absorbing panel on the inner wall of the fuel tank:
|
client |
Core type |
Noise measurement data (decibel) after the use of the Shirui composite noise reduction board |
Noise measurement data (decibel) after using Shirui composite noise reduction board |
Decrease the number of decibels |
|
Shanghai CITIC Electric |
Amorphous alloy |
45.6 |
40 |
5.6 |
|
Jiangsu Hongyuan Electric |
Silicon steel sheet |
49.8 |
44 |
5.8 |
|
Shandong Dimit Electric |
Silicon steel sheet |
43.2 |
38 |
5.2 |
|
Amorphous alloy |
50.3 |
45 |
5.3 |
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