CN108343167A - A kind of wedge absorber prepared using basalt fibre - Google Patents
A kind of wedge absorber prepared using basalt fibre Download PDFInfo
- Publication number
- CN108343167A CN108343167A CN201810337329.5A CN201810337329A CN108343167A CN 108343167 A CN108343167 A CN 108343167A CN 201810337329 A CN201810337329 A CN 201810337329A CN 108343167 A CN108343167 A CN 108343167A
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- Prior art keywords
- skeleton
- sound
- wedge absorber
- sheath
- section
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 229920002748 Basalt fiber Polymers 0.000 title claims abstract description 32
- 239000006096 absorbing agent Substances 0.000 title claims abstract description 29
- 239000011358 absorbing material Substances 0.000 claims abstract description 23
- 229920000742 Cotton Polymers 0.000 claims abstract description 15
- 238000005452 bending Methods 0.000 claims description 25
- 229920000877 Melamine resin Polymers 0.000 claims description 14
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 claims description 14
- 238000004080 punching Methods 0.000 claims description 9
- 230000002787 reinforcement Effects 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 229910001335 Galvanized steel Inorganic materials 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims description 3
- 239000008397 galvanized steel Substances 0.000 claims description 3
- XZMCDFZZKTWFGF-UHFFFAOYSA-N Cyanamide Chemical compound NC#N XZMCDFZZKTWFGF-UHFFFAOYSA-N 0.000 claims 1
- 238000005253 cladding Methods 0.000 claims 1
- 239000000835 fiber Substances 0.000 abstract description 9
- 239000003365 glass fiber Substances 0.000 abstract description 8
- 229910000323 aluminium silicate Inorganic materials 0.000 abstract description 5
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 abstract description 5
- 230000007547 defect Effects 0.000 abstract description 4
- 230000036541 health Effects 0.000 abstract description 4
- 239000002253 acid Substances 0.000 abstract description 3
- 239000000654 additive Substances 0.000 abstract description 3
- 230000000996 additive effect Effects 0.000 abstract description 3
- 239000003513 alkali Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 239000004615 ingredient Substances 0.000 abstract description 3
- 238000009413 insulation Methods 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 239000011435 rock Substances 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000002585 base Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 238000010410 dusting Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- CCEKAJIANROZEO-UHFFFAOYSA-N sulfluramid Chemical group CCNS(=O)(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F CCEKAJIANROZEO-UHFFFAOYSA-N 0.000 description 2
- 210000000988 bone and bone Anatomy 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B1/84—Sound-absorbing elements
- E04B1/8404—Sound-absorbing elements block-shaped
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B1/84—Sound-absorbing elements
- E04B2001/8414—Sound-absorbing elements with non-planar face, e.g. curved, egg-crate shaped
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B1/84—Sound-absorbing elements
- E04B2001/8423—Tray or frame type panels or blocks, with or without acoustical filling
- E04B2001/8428—Tray or frame type panels or blocks, with or without acoustical filling containing specially shaped acoustical bodies, e.g. funnels, egg-crates, fanfolds
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B1/84—Sound-absorbing elements
- E04B2001/8457—Solid slabs or blocks
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Building Environments (AREA)
Abstract
This application provides a kind of wedge absorber prepared using basalt fibre, including skeleton, sound-absorbing material and sheath, sheath is coated with skeleton, and sound-absorbing material is filled in the cavity that skeleton surrounds jointly with sheath, and sound-absorbing material is basalt fiber cotton；The application take full advantage of basalt fibre without any additive, do not have to influence the unfavorable ingredient of human health in its chemical composition, good resistance to acid and alkali, tensile strength and shear strength, it is not easily broken, it is not pulverized easily, wettability power is very low, sound absorbing performance fall is smaller after making moist, good electrical insulating property, good sound insulation and sound-absorbing effect, the good characteristics such as high-low temperature resistant and good weatherability efficiently solve the defect of the manmade inorganic fibres sound-absorbing materials such as glass fibre cotton and the aluminosilicate fiber cotton in traditional wedge absorber.
Description
Technical field
The present invention relates to sound absorption equipment technical fields, more particularly, to a kind of sound absorption point prepared using basalt fibre
It splits.
Background technology
Anechoic room is specialized laboratory used in acoustics experiment, noise testing can be carried out to product and acoustic characteristic is surveyed
Amount has wide application in the fields such as automobile, aerospace, household electrical appliance, computer and communication, industrial products.
When being measured to acoustic wave character, anechoic room needs to establish a free found field space, i.e., in this space,
Infinitely extend to all directions to the homogeneous media of conduct acoustic waves, the acoustic energy " freedom " of sound source radiation is made to propagate, i.e., it is accessible
Reflection, the also interference without ambient noise.
In order to reach above-mentioned requirements, anechoic room needs to configure strong sound-absorbing material on each interface indoors, makes to be incident in interface
Sound wave be almost completely absorbed in certain frequency range；Currently, sound-absorbing material configuration side the most commonly used in anechoic room
Formula is wedge absorber.
Wedge absorber is generally made of pedestal (base portion) two parts of wedge (tip) and connection wedge, general 3 wedges
A unit is formed with pedestal, is required according to Site Design, multiple units can be used.Wedge absorber generally hanging is on roof or four
Wall, behind and wall should there are certain cavity (about 0.05~0.1m), to improve the sound absorbing performance of low frequency.
General filled glass fiber cotton and aluminosilicate fiber cotton are as sound-absorbing material inside wedge absorber at present, but glass
The crisp easily broken easy dusting of the artificial inorganic fibers existence such as cellucotton and aluminosilicate fiber cotton, make moist after sound absorbing performance decline
Seriously, the defects of dust after dusting easily causes damages to the health of worker to environmental danger and sucking body,
Its scope of application is caused to be very restricted.
Invention content
The embodiment of the present invention is designed to provide a kind of wedge absorber prepared using basalt fibre.
In order to solve the above technical problems, technical solution provided by the invention is：
A kind of wedge absorber prepared using basalt fibre, including skeleton, sound-absorbing material and sheath, the sheath packet
The skeleton is covered, the sound-absorbing material is filled in the cavity that the skeleton surrounds jointly with sheath, and the sound-absorbing material is
Basalt fiber cotton.
Preferably, the sheath includes the melamine sponge being sequentially arranged from inside to outside, gauze；
The melamine sponge is coated with the skeleton；
The gauze is coated with the melamine sponge.
Preferably, the gauze is basalt fibre plain.
Preferably, the sheath is coated with all faces of residue in addition to bottom surface of the skeleton with face opening of only keeping on file；
The wedge absorber further includes the plugging plate for blocking bottom surface opening, and the plugging plate includes melamine sponge
And basalt fibre grille, the melamine sponge and basalt fibre grille are superimposed upon one along direction from inside to outside
It rises.
Preferably, the skeleton is the tower structure being welded, and the skeleton includes tip and base portion, the skeleton
Top surface be trapezoidal cross-section slot, the bottom surface of the skeleton is the rectangular frame being welded by square cross section bending plate,
Punch forming has the crotch of square cross section, the frame of two sides of the skeleton on the bending plate of the square cross section
Frame for the frame structure being welded by isosceles square cross section bending plate, two sides of the skeleton is added by support
Solid plate reinforces support.
Preferably, the bracing reinforcement plate is wavy cross-section bending plate.
Preferably, the trapezoidal cross-section slot in the skeleton, isosceles square cross section bending plate and waveform are transversal
Face bending plate is punching press orifice plate, and the aperture of punching is 3mm, and away from for 4mm, punching arranges punch center according to equilateral triangle.
Preferably, the skeleton is hot-galvanized steel material.
This application provides a kind of wedge absorbers prepared using basalt fibre, including skeleton, sound-absorbing material and shield
Set, the sheath are coated with the skeleton, and the sound-absorbing material is filled in the cavity that the skeleton surrounds jointly with sheath, institute
It is basalt fiber cotton to state sound-absorbing material；The raw material for preparing basalt fibre is natural volcano effusive rock, without any additive,
Do not have to influence the unfavorable ingredient of human health in its chemical composition, is a kind of environmentally protective material, has the following advantages：Very well
Resistance to acid and alkali, very high tensile strength and shear strength be not easily broken, is not pulverized easily；Wettability power is very low, and only 0.2%
~0.3%, and wettability power does not change over time, this guarantees its thermal stability in use, the long-life and
Environment compatibility, sound absorbing performance fall is smaller after making moist；With electrical insulating property more higher than glass fibre, volume electricity
Resistance rate and the high an order of magnitude of surface resistivity ratio E- glasses；There are good sound insulation and sound-absorbing effect, with the increase of frequency,
Its acoustic absorptivity has a significant increase, and the acoustic absorptivity of basalt fibre is 0.90~0.99, higher than glass fibre 0.8~
0.93；Its high-low temperature resistant can be used for a long time within the temperature range of -260~880 DEG C, have good weatherability.The above-mentioned Black Warrior
The exclusive feature of rock fiber efficiently solves the artificial nothings such as glass fibre cotton and aluminosilicate fiber cotton in traditional wedge absorber
The defect of machine fiber absorbing material.
Description of the drawings
Fig. 1 is the master of the skeleton in a kind of wedge absorber prepared using basalt fibre that the embodiment of the present invention provides
Depending on structural schematic diagram；
(the trapezoidal cross-section slot in Fig. 2 is implicitly present in the left view structural representation that Fig. 2 is Fig. 1, but due to thickness
It is smaller, it is larger with its width gap, cause trapezoidal cross-section slot in Fig. 2 to show unobvious, show obviously in Fig. 4)；
Fig. 3 is the present invention looks up structural representation of Fig. 1；
Fig. 4 is the amplification left view structural representation of the trapezoidal cross-section slot in the regions C in Fig. 2；
Fig. 5 is the enlarged section structural schematic diagram of the a-quadrant in Fig. 1,2 and 3.
In figure：1 isosceles square cross section bending plate, 2 trapezoidal cross-section slots, 3 bracing reinforcement plates, 4 square cross sections
Bending plate, 401 crotches, 402 through-holes.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
The every other embodiment that member is obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that, term "upper", "lower", "front", "rear", "left", "right", "top",
"bottom", " clockwise ", the orientation or positional relationship of instruction " counterclockwise " are to be based on the orientation or positional relationship shown in the drawings, and are only
For convenience of description of the present invention and simplification of the description, specific side must be had by not indicating or implying the indicated device or element
Position, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term "inner", "outside" instruction orientation or positional relationship be based on
Orientation or positional relationship in practical application, it is "inner" to be located at the orientation inside wedge absorber, is located at the side outside wedge absorber
Position is "outside", is merely for convenience of description of the present invention and simplification of the description, does not indicate or imply the indicated device or element must
There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Limit " first " as a result, the feature of " second " can be expressed or imply
Ground includes one or more this feature.
In the present invention unless specifically defined or limited otherwise, fisrt feature the "upper" of second feature or "lower",
It may include that the first and second features are in direct contact, can also not be to be in direct contact but pass through it including the first and second features
Between other characterisation contact.Moreover, fisrt feature second feature " on ", " top " and " above " include first special
Sign is in the surface and oblique upper of second feature, or is merely representative of fisrt feature level height and is higher than second feature.First is special
Sign second feature " under ", " lower section " and " below " include fisrt feature in the underface and obliquely downward of second feature, or only
Only indicate that fisrt feature level height is less than second feature.
Referring to Fig.1 and 2, Fig. 1 is that a kind of sound absorption prepared using basalt fibre that the embodiment of the present invention provides is sharp
The main structure diagram of skeleton in splitting；Fig. 2 is the left view structural representation of Fig. 1；Fig. 3 is the present invention looks up structural representation of Fig. 1；
Fig. 4 is the amplification left view structural representation of the trapezoidal cross-section slot in the regions C in Fig. 2；Fig. 5 is the a-quadrant in Fig. 1,2 and 3
Enlarged section structural schematic diagram.
This application provides a kind of wedge absorbers prepared using basalt fibre, including skeleton, sound-absorbing material and shield
Set, the sheath are coated with the skeleton, and the sound-absorbing material is filled in the cavity that the skeleton surrounds jointly with sheath, institute
It is basalt fiber cotton to state sound-absorbing material.
In one embodiment of the application, the sheath includes the melamine sponge being sequentially arranged from inside to outside, yarn
Net；
The melamine sponge is coated with the skeleton；
The gauze is coated with the melamine sponge.
In one embodiment of the application, the gauze is basalt fibre plain.
In one embodiment of the application, the sheath is coated with all faces of residue in addition to bottom surface of the skeleton
With face opening of only keeping on file；
The wedge absorber further includes the plugging plate for blocking bottom surface opening, and the plugging plate includes melamine sponge
And basalt fibre grille, the melamine sponge and basalt fibre grille are superimposed upon one along direction from inside to outside
It rises.
In one embodiment of the application, the skeleton is the tower structure being welded, and the skeleton includes point
The top surface of portion and base portion, the skeleton is trapezoidal cross-section slot 2, and the bottom surface of the skeleton is by square cross section bending plate 4
The rectangular frame being welded, on square cross section bending plate 4 punch forming have the crotch 401 of square cross section,
The frame of two sides of the skeleton is the frame structure being welded by isosceles square cross section bending plate 1, the bone
The frame of two sides of frame is reinforced by bracing reinforcement plate 3 and is supported；
Isosceles square cross section bending plate 1, trapezoidal cross-section slot 2, bracing reinforcement plate 3 and square cross section herein
Bending plate 4 is formed by the tablet bending of strip, wherein the crotch of the square cross section on square cross section bending plate 4
401 be also punch forming, and through-hole 402 is remained on square cross section bending plate 4 after punch forming crotch 401.
In one embodiment of the application, the bracing reinforcement plate 3 is wavy cross-section bending plate.
In one embodiment of the application, trapezoidal cross-section slot 2, the cross section bending of isosceles square in the skeleton
Plate 1 and wavy cross-section bending plate are punching press orifice plate, and the aperture of punching is 3mm, and punch center away from for 4mm, press by punching
It is arranged according to equilateral triangle.
In one embodiment of the application, the skeleton is hot-galvanized steel material.
This application provides a kind of wedge absorbers prepared using basalt fibre, including skeleton, sound-absorbing material and shield
Set, the sheath are coated with the skeleton, and the sound-absorbing material is filled in the cavity that the skeleton surrounds jointly with sheath, institute
It is basalt fiber cotton to state sound-absorbing material；The raw material for preparing basalt fibre is natural volcano effusive rock, without any additive,
Do not have to influence the unfavorable ingredient of human health in its chemical composition, is a kind of environmentally protective material, has the following advantages：Very well
Resistance to acid and alkali, very high tensile strength and shear strength be not easily broken, is not pulverized easily；Wettability power is very low, and only 0.2%
~0.3%, and wettability power does not change over time, this guarantees its thermal stability in use, the long-life and
Environment compatibility, sound absorbing performance fall is smaller after making moist；With electrical insulating property more higher than glass fibre, volume electricity
Resistance rate and the high an order of magnitude of surface resistivity ratio E- glasses；There are good sound insulation and sound-absorbing effect, with the increase of frequency,
Its acoustic absorptivity has a significant increase, and the acoustic absorptivity of basalt fibre is 0.90~0.99, higher than glass fibre 0.8~
0.93；Its high-low temperature resistant can be used for a long time within the temperature range of -260~880 DEG C, have good weatherability.The above-mentioned Black Warrior
The exclusive feature of rock fiber efficiently solves the artificial nothings such as glass fibre cotton and aluminosilicate fiber cotton in traditional wedge absorber
The defect of machine fiber absorbing material.
The method and apparatus of the not detailed description of the present invention are the prior art, are repeated no more.
Principle and implementation of the present invention are described for specific embodiment used herein, above example
Illustrate the method and its core concept for being merely used to help understand the present invention.It should be pointed out that for the common skill of the art
, without departing from the principle of the present invention, can be with several improvements and modifications are made to the present invention for art personnel, these change
It is also fallen within the protection scope of the claims of the present invention into modification.
Claims (8)
1. a kind of wedge absorber prepared using basalt fibre, including skeleton, sound-absorbing material and sheath, the sheath cladding
The skeleton, the sound-absorbing material is filled in the cavity that the skeleton surrounds jointly with sheath, which is characterized in that the suction
Sound material is basalt fiber cotton.
2. wedge absorber according to claim 1, which is characterized in that the sheath includes three be sequentially arranged from inside to outside
Poly cyanamid sponge, gauze；
The melamine sponge is coated with the skeleton；
The gauze is coated with the melamine sponge.
3. wedge absorber according to claim 2, which is characterized in that the gauze is basalt fibre plain.
4. wedge absorber according to claim 2, which is characterized in that the sheath be coated with the skeleton except bottom surface it
Outer all faces of residue are with face opening of only keeping on file；
The wedge absorber further includes the plugging plate for blocking bottom surface opening, the plugging plate include melamine sponge and
Basalt fibre grille, the melamine sponge and basalt fibre grille are superimposed along direction from inside to outside.
5. wedge absorber according to claim 1, which is characterized in that the skeleton is the tower structure being welded,
The skeleton includes tip and base portion, and the top surface of the skeleton is trapezoidal cross-section slot, and the bottom surface of the skeleton is by square
The rectangular frame that cross section bending plate is welded, on the bending plate of the square cross section punch forming have square cross section
Crotch, the frame of two sides of the skeleton is the frame structure being welded by isosceles square cross section bending plate,
The frame of two sides of the skeleton is reinforced by bracing reinforcement plate and is supported.
6. wedge absorber according to claim 5, which is characterized in that the bracing reinforcement plate is wavy cross-section bending
Plate.
7. wedge absorber according to claim 6, which is characterized in that the trapezoidal cross-section slot in the skeleton, isosceles are straight
Angular cross section bending plate and wavy cross-section bending plate are punching press orifice plate, and the aperture of punching is 3mm, punch center away from
For 4mm, punching is arranged according to equilateral triangle.
8. wedge absorber according to claim 5, which is characterized in that the skeleton is hot-galvanized steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810337329.5A CN108343167A (en) | 2018-04-16 | 2018-04-16 | A kind of wedge absorber prepared using basalt fibre |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810337329.5A CN108343167A (en) | 2018-04-16 | 2018-04-16 | A kind of wedge absorber prepared using basalt fibre |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108343167A true CN108343167A (en) | 2018-07-31 |
Family
ID=62955014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810337329.5A Pending CN108343167A (en) | 2018-04-16 | 2018-04-16 | A kind of wedge absorber prepared using basalt fibre |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108343167A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109339267A (en) * | 2018-10-26 | 2019-02-15 | 苏州岸肯电子科技有限公司 | A kind of adjustable sound absorption wedge |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6371240B1 (en) * | 2000-03-18 | 2002-04-16 | Austin Acoustic Systems, Inc. | Anechoic chamber |
| CN105089167A (en) * | 2015-09-02 | 2015-11-25 | 上海声望声学科技股份有限公司 | Novel metal sound absorbing wedge |
| CN208415563U (en) * | 2018-04-16 | 2019-01-22 | 山东聚源玄武岩纤维股份有限公司 | A kind of wedge absorber prepared using basalt fibre |
-
2018
- 2018-04-16 CN CN201810337329.5A patent/CN108343167A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6371240B1 (en) * | 2000-03-18 | 2002-04-16 | Austin Acoustic Systems, Inc. | Anechoic chamber |
| CN105089167A (en) * | 2015-09-02 | 2015-11-25 | 上海声望声学科技股份有限公司 | Novel metal sound absorbing wedge |
| CN208415563U (en) * | 2018-04-16 | 2019-01-22 | 山东聚源玄武岩纤维股份有限公司 | A kind of wedge absorber prepared using basalt fibre |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109339267A (en) * | 2018-10-26 | 2019-02-15 | 苏州岸肯电子科技有限公司 | A kind of adjustable sound absorption wedge |
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