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Sound absorption door

A sound-absorbing panel and door-back technology, which is applied in the field of sound-absorbing doors, can solve problems such as poor sound insulation and impact, and achieve a remarkable sound-absorbing effect

Active Publication Date: 2017-08-15
四川龙尚木业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The use of soundproof materials indoors is an effective means to reduce noise pollution. Most of the room doors sold on the market have been soundproofed and have a certain soundproof function. However, when the sound is loud, or there is a certain contact with the door And when vibration occurs, its sound insulation effect is relatively poor, which will affect people around

Method used

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  • Sound absorption door

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] γ-Al2O3: nickel nitrate: aluminum isopropoxide mass ratio = 4:1:2, 8g γ-Al2O3, 2g nickel nitrate, 4g aluminum isopropoxide;

[0018] Step 1. First, γ-Al2O3, nickel nitrate, 15ml 2mol / L sodium hydroxide, and 15ml absolute ethanol are ultrasonically oscillated in an oil bath at 90°C for 2 hours to remove impurities;

[0019] Step 2. Put 10ml of silica sol, aluminum isopropoxide, 200ml of deionized water, and 7ml of liquid templating agent triethylamine in an ultrasonic oscillating water bath at 90°C for 2 hours to remove impurities;

[0020] Step 3. Add the silica sol dropwise into the flask, then dropwise add deionized water, absolute ethanol, and sodium hydroxide dropwise at a rate of 20 drops per minute, and simultaneously heat the oil bath with magnetic stirring for 3 hours;

[0021] Step 4. Add aluminum isopropoxide to the above solution, then add the templating agent triethylamine dropwise at a rate of 30 drops per minute, and heat at 80°C in an oil bath with magnet...

Embodiment 2

[0030] The preparation method is the same as in Example 1; the difference is that the mass ratio of γ-Al2O3: nickel nitrate: aluminum isopropoxide is 4:3:2, 8g γ-Al2O3, 6g nickel nitrate, and 4g aluminum isopropoxide.

Embodiment 3

[0032] The preparation method is the same as in Example 1; the difference is that the mass ratio of γ-Al2O3: nickel nitrate: aluminum isopropoxide is 4:1:3, 8g γ-Al2O3, 2g nickel nitrate, and 6g aluminum isopropoxide.

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PUM

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Abstract

A sound absorption door comprises a door front plate, a door rear plate and an intermediate plate. The intermediate plate comprises a frame and a sound absorption plate mounted in the frame. Circular grooves are uniformly distributed in the surface of the door front plate. The sound absorption door is composed of the door front plate, the door rear plate and the intermediate plate, and the circular grooves are uniformly distributed in the surface of the door front plate, so that the sound wave absorption effect is good; and the sound absorption door is provided with the sound absorption plate, the sound absorption plate is prepared from NiO-ZSM-5 / gamma-Al2O3 prepared through the special technology, and the sound absorption coefficient can reach 0.96, so that the sound absorption effect of the whole door is quite significant, and the comprehensive sound absorption reaches 0.99.

Description

technical field [0001] The invention relates to a sound-absorbing door, which belongs to the field of daily life. Background technique [0002] In people's life and work, independent or private spaces are often required, such as places required for office, meeting or rest, so the sound insulation effect of the room is very important. The use of soundproof materials indoors is an effective means to reduce noise pollution. Most of the room doors sold on the market have been soundproofed and have a certain soundproof function. However, when the sound is loud, or there is a certain contact with the door And when vibration occurs, its sound insulation effect is relatively poor, which will affect people around. Therefore, how to develop a room door with excellent sound insulation effect is a problem to be solved. Contents of the invention [0003] Aiming at the above-mentioned problems in the prior art, the present invention provides a sound-absorbing door with good sound-abso...

Claims

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Application Information

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IPC IPC(8): E06B5/20E06B3/72C01G53/04C01B39/40C01F7/02
CPCC01B39/40C01F7/021C01G53/04C01P2004/80C01P2006/90E06B3/72E06B5/20E06B2003/7049
Inventor 刘志伟
Owner 四川龙尚木业有限公司
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