Plate-film composite acoustic board and processing method thereof
A processing method and sound-absorbing board technology, applied in the field of environmental engineering, can solve the problems of complex micro-hole processing, low structural strength, narrow sound-absorbing frequency band, etc., and achieve the effects of convenient processing, long service life, and sound-absorbing frequency bandwidth.
Active Publication Date: 2021-03-16
BEIJING MUNICIPAL INST OF LABOUR PROTECTION
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Problems solved by technology
[0006] The purpose of the present invention is to provide a sheet-film composite sound-absorbing panel and its processing method to solve the technical problems of narrow sound-absorbing frequency band, low structural strength and complicated micro-hole processing of single-layer micro-perforated panels to a certain extent.
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[0034] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0035] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the system or component referred to must have a specific orientat...
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Abstract
The invention provides a plate-film composite acoustic board and a processing method thereof, relates to the technical field of environmental engineering, and aims to solve the technical problems thata single-layer micro-perforated board is narrow in acoustic band, low in structural strength and complex in micropore processing to a certain extent. The invention provides a plate-film composite acoustic board. The plate-film composite acoustic board comprises a substrate, an adhesive layer and a film layer, wherein the thickness of the base plate is 0.2 mm to 15 mm, a plurality of through holespenetrating through the thickness direction are formed in the base plate, and the equivalent hydraulic diameter of the through holes is not smaller than 1.0 mm; the film layer is bonded with the substrate through the adhesive layer and covers the through hole; gaps are formed in positions, corresponding to the through holes, of the film layer.
Description
technical field [0001] The invention relates to the technical field of environmental engineering, in particular to a plate-film composite sound-absorbing panel and a processing method thereof. Background technique [0002] At present, the control methods for noise mainly include sound absorption, sound insulation and sound elimination, and sound-absorbing materials play an important role in the above three methods. Traditional resistive sound-absorbing materials face problems such as insufficient low-frequency sound-absorbing performance and poor weather resistance. However, the micro-perforated plate formed by piercing a large number of micro-holes on the thin plate relies on the resonance between the structure and the sound wave to consume sound energy to achieve sound absorption. , has the characteristics of no need to fill porous materials, light weight, excellent weather resistance, and no secondary pollution. It is widely used in many fields such as construction, indus...
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IPC IPC(8): B32B7/12B32B3/24B32B3/12B32B15/04B32B15/14B32B27/02B32B27/36B32B15/085B32B15/082B32B15/08B32B15/10B32B9/00B32B9/04B32B17/10B32B17/12B32B21/08B32B21/10B32B27/32B32B27/30B32B27/12B32B27/06B32B17/06B32B21/04B32B38/00B32B38/04B32B37/12
CPCB32B3/12B32B3/266B32B7/12B32B9/005B32B9/04B32B9/041B32B9/045B32B9/047B32B15/04B32B15/043B32B15/08B32B15/082B32B15/085B32B15/10B32B15/14B32B17/06B32B17/061B32B17/067B32B21/04B32B21/08B32B21/10B32B27/06B32B27/12B32B27/304B32B27/32B32B37/1284B32B38/0004B32B38/04B32B2038/045B32B2262/0276B32B2307/10B32B2307/5825
Inventor 蒋从双李贤徽肖伟民
Owner BEIJING MUNICIPAL INST OF LABOUR PROTECTION