A kind of polyurethane sound insulation board production method
A production method, polyurethane technology, applied to flat products, other household appliances, household appliances, etc., can solve problems such as poor sound insulation effect, reduced sound insulation effect of sound insulation boards, uneven foaming of polyurethane sound insulation boards, etc., to improve the sound insulation effect, Improve the stirring effect and the effect of uniform foaming
Active Publication Date: 2020-08-14
江苏德励达新材料股份有限公司
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Problems solved by technology
However, not all frequencies of sound can be blocked by the sound insulation board. Objects have a natural resonance frequency. For sounds close to the resonance frequency of the object, the sound insulation effect of the sound insulation board will be significantly reduced.
The polyurethane sound insulation panels currently on the market also have this problem. At the same time, there are also problems such as poor sound insulation effect caused by uneven foaming in the polyurethane sound insulation panels.
Method used
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Embodiment Construction
[0024] use Figure 1-Figure 4 A method for producing a high-performance polyurethane sound-insulating panel according to one embodiment of the present invention will be described below.
[0025] like figure 1 and figure 2 Shown, a kind of polyurethane sound insulation board manufacture method of the present invention, this method comprises the steps:
[0026] S1: Utilize the polyurethane raw materials produced by the polyurethane foaming machine to make polyurethane sound insulation boards, so that the prepared polyurethane sound insulation boards are evenly foamed, thereby improving the sound insulation effect of polyurethane sound insulation boards;
[0027] S2: After the polyurethane sound insulation board is prepared in S1, the stainless steel capillary laser drilling equipment is used to perforate holes with a diameter between 0.001-0.01mm on the polyurethane sound insulation board, and the holes on the sound insulation board are used to absorb the sound, thereby effec...
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The invention belongs to the technical field of production of polyurethane sound insulation boards, and in particular relates to a production method of a polyurethane sound insulation board. The method comprises the following steps: making the polyurethane sound insulation board by using a polyurethane raw material produced by a polyurethane foaming machine; using a stainless steel capillary laserdrilling apparatus to perforate polyurethane sound insulation board, wherein the sizes of the perforated holes are within a range of 0.001-0.01mm; arranging reinforcing ribs on the sound insulation board to reduce the vibration of the sound insulation board; embedding a polyurethane block in the polyurethane sound insulation board to destroy the resonance of the polyurethane sound insulation board. The production method provided by the invention can be used for making the polyurethane sound insulation board with superstrong sound insulation performance, and is suitable for production of the high-performance polyurethane sound insulation board.
Description
technical field [0001] The invention belongs to the technical field of making polyurethane sound-insulating boards, in particular to a method for making polyurethane sound-insulating boards. Background technique [0002] Acoustic panels are a type of tile that acts on sound insulation. There are sound insulation of buildings and sound insulation of structures. There are many types of sound insulation panels on the market, among which polyurethane sound insulation panels are one of them. Polyurethane panels have good sound insulation effects. occupy a large share. However, not all frequencies of sound can be blocked by the sound insulation board. Objects have a natural resonance frequency. For sounds close to the resonance frequency of the object, the sound insulation effect of the sound insulation board will be significantly reduced. The polyurethane sound insulation panels currently on the market also have this problem. At the same time, there are also problems such as p...
Claims
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IPC IPC(8): B29C44/04B29C44/34B29C69/00B29K75/00B29L7/00
CPCB29C44/04B29C44/34B29C44/3442B29C69/001B29K2075/00B29L2007/002
Inventor 林枫
Owner 江苏德励达新材料股份有限公司