CN200949271Y - Pore sound-absorbing board - Google Patents
Pore sound-absorbing board Download PDFInfo
- Publication number
- CN200949271Y CN200949271Y CN 200620064531 CN200620064531U CN200949271Y CN 200949271 Y CN200949271 Y CN 200949271Y CN 200620064531 CN200620064531 CN 200620064531 CN 200620064531 U CN200620064531 U CN 200620064531U CN 200949271 Y CN200949271 Y CN 200949271Y
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- perforation
- acoustic board
- micropunch
- base material
- substrate
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Abstract
The utility model relates to building acoustics technology field, in particular to a micro perforation acoustic board. The acoustic board uses double hollow light transmission carbonate plates as substrate, the two surfaces skin plate of which are provided with perforations connecting to the hollow intracavity of the substrate, and the perforations of at least one skin plate are micro perforations. The utility model uses substrate skin plate to puncture and perforate and do not need to discharge slag, thus to solve the problem of difficulties in perforating micro perforations, and makes used of the toughness of the substrate to make the substrate can complete micro perforation sound absorption and board resonance sound absorption, and uses substrate perforation to avoid hindering lighting, thus to realize the aim of providing a micro perforation acoustic board with low cost, good sound absorption ability and good light transmittance ability.
Description
Technical field
The utility model belongs to the building acoustics technical field.Particularly a kind of is base material with double-deck hollow printing opacity polycarbonate plate, base material two faces have perforation to communicate with the hollow cavity of base material, and wherein one side perforation is micropunch at least, and cost is low, and printing opacity is good, Micropunch Acoustic Board.
Background technology
Known, Micropunch Acoustic Board be a kind of perforated percentage (perforation field is than plate area) that on thin plate, passes less than 5%, the single hole area is less than 0.79 square millimeter perforated acoustic board.Because the perforation field of this acoustical board is little, acoustic resistance is big, thereby when this acoustical board was fixed on the preceding certain distance of wall, its plate air layer behind plate can constitute a kind of acoustic frequency bandwidth, the microperforated panel soundabsorbing construction that sound absorption coefficient is big.Microperforated panel soundabsorbing construction has simple structure, and sound absorption property is good, need not filler, and can be at high gas flow. use advantage such as easy to clean in the high dust atmosphere.But there is the aperture float slag difficulty because of punching in Micropunch Acoustic Board, causes the more expensive defective of price, exists for to prevent the thin plate warpage and will fix a plurality of stations, the defective of construction trouble." sound absorbent for building and sound insulating material " Chemical Industry Press.
Known, unsettled after fixing its edges of boards and making it plate during with the appropriate crooked wooden splint of energy or similar dull and stereotyped decorated wall surface or furred ceiling, can be by the resonance absorption low-frequency sound of plate.Fixing of this flat board except that with the framework, also can be propped up a mode by so-called point, just fixes several points and props up flat board.Known, when the longitudinal separation of two perforated acoustic boards is very little, the great majority of two boards perforation simultaneously is not positioned at same normal (perpendicular to any straight line on the face), i.e. when perforation interlaces with punch position, can influence acoustically effective.This defective can be by making the normal alignment of front and rear panel perforation, or increase back plate perforated percentage and be improved.
Known, the building sound absorption will take apart from the space of wall 50--100 millimeter, also promptly will take certain building area.This defective can obtain appropriateness and remedy when sound absorption material is transparent by people's visual illusion.Known, window wall has daylighting good. and wall such as has just endured at advantage.But window wall belongs to total reflection sound material, easily causes indoor sound because of repeatedly reflecting muddiness.To sum up, builing industry to a kind of wall just very and the sound absorption material of printing opacity has current demand.
Known, Merlon (abbreviation PC) plastics are a kind of light transmittance height, shock resistance. bend resistance. and the material that break resistance is very excellent.Merlon is because of tasteless. odorless. and nontoxic, can fire-retardantly be used to make daily necessities in a large number, such as making scuttlebutt from putting out.
Double-deck hollow printing opacity polycarbonate plate (sunlight board) is a kind of sheet material that hollow cavity is arranged, two sides sheet surface layer and some abutment wall by thickness 0.15--0.8 millimeter constitute, plate surface is straight just very, also can be crooked, its specification is 4 millimeters of thickness (containing hollow cavity)--10 millimeters, 2.1 meters of width, 6 meters of length.The sheet surface layer of double-deck hollow printing opacity polycarbonate plate can be bored a hole by sharp device, and burr is tough and continuous behind its hole.When the traversing formation extending bore of the sharp device in perforation back, slightly long by the burr of sharp device moving direction.This sheet material is in surface density during less than 1 Kilograms Per Square Meter, still can the holding plate face straight just very.Because high printing opacity arranged. in light weight. intensity is big. and deflection is good. and can heat-insulating sound-insulating. advantage such as easy for installation, double-deck hollow printing opacity polycarbonate plate has been widely used in builing industry.
Summary of the invention
It is low that the purpose of this utility model provides a kind of cost, absorbs sound the Micropunch Acoustic Board that printing opacity is good.
The purpose of this utility model is achieved in that a kind of Micropunch Acoustic Board, the base material of acoustical board is double-deck hollow printing opacity polycarbonate plate, the surface density of base material can be less than 0.99 Kilograms Per Square Meter, two sheet surface layers of base material have perforation to communicate with the hollow cavity of base material, wherein the perforated percentage of at least one sheet surface layer is less than 5%, and perforation is the single hole area less than 0.79 square millimeter micropunch, micropunch can be a puncturing hole, it also can be the puncture extending bore, can be circular hole or square hole, also can be width less than 0.38 millimeter bar hole, the perforation normal of at least 30% perforation of two sheet surface layers of base material can be folded mutually, the perforation of the another side sheet surface layer of base material can be an area greater than 12% hollow out, and the sheet surface layer outside can be covered with membrana perforata or fabric.
During use, the utility model acoustical board is installed in certain distance before the wall, perhaps some acoustical boards is surrounded by the sound absorption screen of cavity, form the microperforated panel soundabsorbing construction sound absorption with framework.When the rear of the utility model acoustical board is the transparent glass wall, or the rear is when having lamp source, and sunlight or light can pass the utility model makes building obtain daylighting.
The utility model is the acoustical board base material with double-deck hollow printing opacity polycarbonate plate, the one, it is smooth to utilize the limited perforation of base material sheet surface layer not influence the base material macroscopic view, especially the not deslagging of boring a hole that can puncture has solved problems such as wearing the difficult and plate face warpage of micropore, has reduced processing cost.The 2nd, utilize the straight very firm and energy bending of base material, make it both micropunch sound absorption, can absorb sound with the plate resonance mode again.The 3rd, utilize the base material perforation not hinder daylighting.Having reached provides a kind of cost low, absorbs sound the purpose of the Micropunch Acoustic Board that printing opacity is good.
Description of drawings
Below in conjunction with accompanying drawing the utility model is done concrete the introduction.
Fig. 1 is the schematic diagram of a kind of embodiment of the present utility model.
Fig. 2 is the local enlarged diagram in the cross section of a kind of embodiment of the present utility model.
Fig. 3 is the schematic diagram of processing a kind of simple and easy perforation mould of the present utility model.
Fig. 4 is the schematic side view of processing a kind of simple and easy perforation mould of the present utility model.
The specific embodiment
With reference to Fig. 1. Fig. 2, the double-deck hollow printing opacity polycarbonate plate that the present embodiment used thickness is 5 millimeters is that base material is made acoustical board [1], sheet surface layer [2] .[3 that acoustical board is [1] two] 0.18 millimeter of thickness, 0.2 millimeter of the thickness of abutment wall [4], 4.6 millimeters of the height of hollow cavity [5], 6.8 millimeters of width.Go up by 2% perforated percentage the micropunch [6] of 0.5 square millimeter of the single hole area of puncturing out at sheet surface layer [2].Go up by 6% perforated percentage the common perforation [7] of 1.5 square millimeters of the single hole areas of puncturing out at another side sheet surface layer [3].As shown in the figure, burr [8] .[9 of micropunch of present embodiment [6] and common perforation [7]], all be positioned at hollow cavity [5] the inside.
Present embodiment can be finished on press with the perforation mould, also can finish on conveying machinery with the multiple tooth cutter pressure roller of circle.What below introduce is a kind of simple and easy perforation mould.
With reference to Fig. 3. Fig. 4, a kind of simple and easy perforation mould [11] is by steel band serrated knife [12]. and flexible glue bar [13] and die holder [14] are formed, and die holder [14] upper end is die shank [15].Alternate die holder [14] below that is fixed on flexible glue bar [13] of steel band serrated knife [12], steel band serrated knife [12] front end has a plurality of sharp keen crowns [16].
When simple and easy perforation mould was bored a hole downwards, the flexible glue bar can be crushed, and the steel band serrated knife will be worn out sheet surface layer and form perforation.When simple and easy perforation mould was upwards taken out cutter, the flexible glue bar can progressively restore to the original state, and pushed down sheet surface layer and made it motionless.
Claims (8)
1. Micropunch Acoustic Board, the base material that it is characterized in that acoustical board is double-deck hollow printing opacity polycarbonate plate, two sheet surface layers of base material have perforation to communicate with the hollow cavity of base material, wherein the perforated percentage of at least one sheet surface layer is less than 5%, and perforation is the single hole area less than 0.79 square millimeter micropunch.
2. by the described Micropunch Acoustic Board of claim 1, it is characterized in that at least 30% perforation normal of boring a hole of two sheet surface layers of base material is folded mutually.
3. by the described Micropunch Acoustic Board of claim 1, the perforation that it is characterized in that the another side sheet surface layer of base material is an area greater than 12% hollow out.
4. by the described Micropunch Acoustic Board of claim 1, the surface density that it is characterized in that base material is less than 0.99 Kilograms Per Square Meter.
5. by the described Micropunch Acoustic Board of claim 1, it is characterized in that micropunch is a puncturing hole.
6. by the described Micropunch Acoustic Board of claim 1, it is characterized in that micropunch is the puncture extending bore.
7. by the described Micropunch Acoustic Board of claim 1, it is characterized in that micropunch is a width less than 0.38 millimeter bar hole.
8. by the described Micropunch Acoustic Board of claim 1, it is characterized in that sheet surface layer is covered with membrana perforata or fabric outward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620064531 CN200949271Y (en) | 2006-09-20 | 2006-09-20 | Pore sound-absorbing board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620064531 CN200949271Y (en) | 2006-09-20 | 2006-09-20 | Pore sound-absorbing board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200949271Y true CN200949271Y (en) | 2007-09-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620064531 Expired - Fee Related CN200949271Y (en) | 2006-09-20 | 2006-09-20 | Pore sound-absorbing board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200949271Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH706439A1 (en) * | 2012-04-26 | 2013-10-31 | Akustik & Raum Ag | Sound-absorbing element installed in ceiling of room of public building, has intermediate layers which are designed to create communicating connection between micro-perforation of cover layer and through-passages in substrate layer |
| CN103606441A (en) * | 2013-08-30 | 2014-02-26 | 国家电网公司 | Noise reduction and sound absorption device of transformer |
| CN105189886A (en) * | 2012-06-20 | 2015-12-23 | 皇家飞利浦有限公司 | Acoustic panel having lighting properties |
| CN106128446A (en) * | 2016-08-29 | 2016-11-16 | 江苏标榜装饰新材料股份有限公司 | Micropunch abatvoix |
| CN112718269A (en) * | 2020-12-09 | 2021-04-30 | 南京中船绿洲机器有限公司 | Sound absorption structure for noise reduction of disc separator |
-
2006
- 2006-09-20 CN CN 200620064531 patent/CN200949271Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH706439A1 (en) * | 2012-04-26 | 2013-10-31 | Akustik & Raum Ag | Sound-absorbing element installed in ceiling of room of public building, has intermediate layers which are designed to create communicating connection between micro-perforation of cover layer and through-passages in substrate layer |
| CN105189886A (en) * | 2012-06-20 | 2015-12-23 | 皇家飞利浦有限公司 | Acoustic panel having lighting properties |
| CN105189886B (en) * | 2012-06-20 | 2017-03-15 | 皇家飞利浦有限公司 | There are the acoustic panels of illumination properties |
| CN103606441A (en) * | 2013-08-30 | 2014-02-26 | 国家电网公司 | Noise reduction and sound absorption device of transformer |
| CN103606441B (en) * | 2013-08-30 | 2016-12-28 | 国家电网公司 | A kind of transformator noise reduction sound absorber |
| CN106128446A (en) * | 2016-08-29 | 2016-11-16 | 江苏标榜装饰新材料股份有限公司 | Micropunch abatvoix |
| CN112718269A (en) * | 2020-12-09 | 2021-04-30 | 南京中船绿洲机器有限公司 | Sound absorption structure for noise reduction of disc separator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |