CN105155704B - A kind of double-level-metal wedge and preparation method thereof - Google Patents
A kind of double-level-metal wedge and preparation method thereof Download PDFInfo
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- CN105155704B CN105155704B CN201510344574.5A CN201510344574A CN105155704B CN 105155704 B CN105155704 B CN 105155704B CN 201510344574 A CN201510344574 A CN 201510344574A CN 105155704 B CN105155704 B CN 105155704B
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Abstract
The present invention provides a kind of double-level-metal wedges and preparation method thereof, including metal first layer, metallic second layer, the first connecting plate and the second connecting plate, metallic second layer is nested in metal first layer, and the bottom of metal first layer and metallic second layer is detachably connected by the first connecting plate and the second connecting plate；Metal first layer includes V-type side plate, the first cover board and the second cover board；The two sides of V-type side plate connect the first cover board and the second cover board respectively；Metallic second layer includes cylindrical substrate and cylinder protrusive board, and cylinder protrusive board is located at cylindrical substrate top；Multiple apertures are distributed on V-type side plate, the first cover board, the second cover board, cylindrical substrate and cylinder protrusive board, the first cover board, the second cover board outer surface are fixed with supporting member.Metal wedge sound absorption effect of the present invention is good, fire prevention, beauty, strong shock resistance, service life are long；Preparation process is simple, easy to operate, can adjust mutual size according to actual needs, there is preferable industrial prospect.
Description
Technical field
The invention belongs to wedge absorber field, more particularly, to a kind of double-level-metal wedge and preparation method thereof.
Background technology
With the fast development of China's economy, scientific research and industrial development are more and more to the demand of anechoic room, it is desirable that also get over
Come higher.For example, in the fields such as automobile, aerospace, household electrical appliance, computer and communication, in order to carry out noise to product
Measurement and acoustics feature measurement, anechoic room is important facility.Wedge absorber is the critical component of anechoic room, so that sound wave energy
It is enough wirelessly to extend to all directions, that is, in this environment both without the reflection of barrier, also without the dry of ambient noise
It disturbs.Traditional mineral wool wedge absorber has had the applicating history of more than 70 years, and foam wedge also has the application of more than 40 years.
The wedge absorber being commonly used is mineral wool wedge, i.e., using steel wire as skeleton, and internal filling glass cotton
Sound-absorbing materials are waited, and in surface materials such as external sheath glass wool cloths.It is unfavorable for however, the tradition wedge such as mineral wool wedge exists
Fire prevention, unsightly, the problems such as impact resistance is poor, and service life is short.
The content of the invention
For deficiency exists in the prior art, the present invention provides a kind of double-level-metal wedge and preparation method thereof, to carry
Sound absorption effect, fire protecting performance, aesthetics, impact resistance and the service life of high metal wedge.
The present invention achieves the above technical objects by the following technical means.
A kind of double-level-metal wedge, including metal first layer, metallic second layer, the first connecting plate and the second connecting plate, institute
It states metallic second layer to be nested in metal first layer, the bottom of the metal first layer and metallic second layer passes through the first connecting plate
It is detachably connected with the second connecting plate；
The metal first layer includes V-type side plate, the first cover board and the second cover board；The two sides difference of the V-type side plate
Connect the first cover board and the second cover board；The metallic second layer includes cylindrical substrate and cylinder protrusive board, and the cylinder protrusive board is located at
Cylindrical substrate top；It is distributed on the V-type side plate, the first cover board, the second cover board, cylindrical substrate and cylinder protrusive board multiple small
Hole, first cover board, the second cover board outer surface are fixed with supporting member.
Further, the aperture of aperture set by the V-type side plate is 4-6mm, pitch-row 5-8mm；First cover board and
The aperture of aperture set by second cover board is 2-4mm, pitch-row 3-6mm.
Further, the aperture of aperture set by the cylindrical substrate and cylinder protrusive board is 2-4mm, pitch-row 3-6mm.
Further, the angle of the V-type side plate is 15-45 °.
Further, 0.5-0.7 times of a diameter of first cover board of the cylindrical substrate and the second cover board spacing.
Further, the height of the cylindrical substrate is equal to the height of cylinder protrusive board, and is metal first layer height
1/3。
Further, 0.2-0.4 times of a diameter of cylindrical substrate diameter of the cylinder protrusive board.
Further, it is filled with sound-absorbing material in the metal first layer and metallic second layer gap.
Further, the sound-absorbing material is obturator-type foamed plastics, plastic foil or artificial leather.
A kind of preparation method of double-level-metal wedge, which is characterized in that include the following steps：
Step A：Raw material metal is cut into a rectangular slab, rectangular slab is converted into V-type side plate with bender；By metal
Raw material cut into first cover board and second cover board identical with V-type side plate side；
Step B：Using laser respectively to V-type side plate, the first cover board and the second cover board punching；
Step C：Raw material metal is processed into a cylindrical substrate and cylinder protrusive board, then laser punching respectively；
Step D：V-type side plate, the first cover board and the second cover board assembly and connection are formed into metal first layer, by cylindrical substrate and
Cylinder protrusive board assembly and connection forms metallic second layer, and metallic second layer is placed on inside metal first layer, and in metal first
Filling sucting sound material in the cavity that layer and metallic second layer are formed；Then by the first connecting plate and the second connecting plate by metal
After two layers are detachably connected with metal first layer, you can obtain the double-level-metal wedge.
Beneficial effects of the present invention：
A kind of double-level-metal wedge of the present invention and preparation method thereof, by will be by V-type side plate, the first cover board and
The metal first layer and connected by the metal first layer that cylindrical substrate and cylinder protrusive board are formed that two cover boards are formed, and in metal
Filling sucting sound material between first layer and metallic second layer forms a kind of good sound absorption effect, fire prevention, U.S. by resonant structure with this
Sight, strong shock resistance, the double-level-metal wedge of service life length.The preparation process of the present invention is simple, easy to operate, can be according to reality
Border needs to adjust mutual size, there is preferable industrial prospect.
Description of the drawings
Fig. 1 is the structure diagram of double-level-metal wedge of the present invention.
Fig. 2 is the diagrammatic cross-section of double-level-metal wedge of the present invention.
Fig. 3 is the structure diagram of metallic second layer of the present invention.
The reference numerals are as follows：
1- metal first layers, 2- metallic second layers, the first connecting plates of 3-, the second connecting plates of 4-, 5- supporting members, 11-V types
Side plate, the first cover boards of 12-, the second cover boards of 13-, 21- cylindrical substrates, 22- cylinder protrusive boards.
Specific embodiment
Below in conjunction with the accompanying drawings and specific embodiment the present invention is further illustrated, but protection scope of the present invention is simultaneously
It is without being limited thereto.
As depicted in figs. 1 and 2, a kind of double-level-metal wedge is connected including metal first layer 1, metallic second layer 2, first
3 and second connecting plate 4 of plate, the metallic second layer 2 are nested in metal first layer 1, metal first layer 1 and metallic second layer 2
Bottom be detachably connected by the first connecting plate 3 and the second connecting plate 4；The metal first layer 1 includes V-type side plate 11, the
One cover board 12 and the second cover board 13；The two sides of the V-type side plate 11 connect the first cover board 12 and the second cover board 13 respectively；Such as figure
Shown in 3, the metallic second layer 2 includes cylindrical substrate 21 and cylinder protrusive board 22, and the cylinder protrusive board 22 is located at cylindrical substrate 21
Top.
The preparation method of above-mentioned double-level-metal wedge is as follows：
Step A：Raw material metal is cut into a rectangular slab, it is 15-45 ° that rectangular slab is converted into angle with bender
V-type side plate 11；Raw material metal is cut into first cover board 12 and second cover board 13 identical with 11 side of V-type side plate.
Step B：Laser is used to go out multiple apertures on V-type side plate 11 as 4-6mm, pitch-row is the aperture of 5-8mm；Using
Laser goes out multiple apertures as 2-4mm on the first cover board 12 and the second cover board 13, and pitch-row is the aperture of 3-6mm.
Step C：Raw material metal is processed into a cylindrical substrate 21 and cylinder protrusive board 22, wherein cylindrical substrate 21 is straight
Footpath is 0.5-0.7 times of 13 spacing of the first cover board 12 and the second cover board；The height of cylindrical substrate 21 is equal to the height of cylinder protrusive board 22
Degree, and be the 1/3 of 1 height of metal first layer；0.2-0.4 times of 21 diameter of a diameter of cylindrical substrate of cylinder protrusive board 22；
Multiple apertures are gone out as 2-4mm in cylindrical substrate 21 and 22 surface of cylinder protrusive board, and pitch-row is the aperture of 3-6mm.
Step D：V-type side plate 11, the first cover board 12 and 13 assembly and connection of the second cover board are then formed into metal first layer 1,
Cylindrical substrate 21 and 22 assembly and connection of cylinder protrusive board are formed into metallic second layer 2, metallic second layer 2 is placed on metal first layer
Inside 1, and obturator-type foamed plastics, plastic foil or artificial are filled in the cavity formed in metal first layer 1 and metallic second layer 2
The sound-absorbing materials such as leather；It is then by the first connecting plate 3 and the second connecting plate 4 that metallic second layer 2 and metal first layer 1 is detachable
After connection, you can obtain the double-level-metal wedge.
Double-level-metal wedge of the present invention passes through the metal that will be made of V-type side plate, the first cover board and the second cover board
It first layer and is connected by the metal first layer that cylindrical substrate and cylinder protrusive board are formed, and in metal first layer and metal second
Filling sucting sound material between layer.Metal first layer and sound-absorbing material are equivalent to mass block, metallic second layer and subsequent air layer
It is equivalent to spring.When sound wave effect is in metal first layer, cause bending vibration under the alternation effect of acoustic pressure.Due to metal
One layer, interior frictional dissipation caused by sound-absorbing material and metallic second layer friction and inside, make the kinetic energy of vibration be converted into thermal energy
And acoustic energy is made to be decayed.When the frequency of incident acoustic wave and the consistent intrinsic frequency of vibrational system, vibrational system will occur
Covibration, acoustic energy will obtain maximum absorption.So that generating acoustic resonance between the two, damping fever is most strong in the case of this,
Thus the acoustic energy of sound absorption is most strong.
The embodiment is preferred embodiment of the invention, but present invention is not limited to the embodiments described above, not
Away from the present invention substantive content in the case of, those skilled in the art can make it is any it is conspicuously improved, replace
Or modification all belongs to the scope of protection of the present invention.
Claims (6)
1. a kind of double-level-metal wedge, which is characterized in that including metal first layer (1), metallic second layer (2), the first connecting plate
(3) with the second connecting plate (4), the metallic second layer (2) is nested in metal first layer (1), the metal first layer (1) and
The bottom of metallic second layer (2) is detachably connected by the first connecting plate (3) and the second connecting plate (4)；
The metal first layer (1) includes V-type side plate (11), the first cover board (12) and the second cover board (13)；The V-type side plate
(11) two sides connect the first cover board (12) and the second cover board (13) respectively；The metallic second layer (2) includes cylindrical substrate
(21) and cylinder protrusive board (22), the cylinder protrusive board (22) are located at cylindrical substrate (21) top；The V-type side plate (11), first
Multiple apertures, first lid are distributed on cover board (12), the second cover board (13), cylindrical substrate (21) and cylinder protrusive board (22)
Plate (12), the second cover board (13) outer surface are fixed with supporting member (5), and the angle of the V-type side plate (11) is 15-45 °；It is described
A diameter of first cover board (12) of cylindrical substrate (21) and 0.5-0.7 times of the second cover board (13) spacing；The cylindrical substrate
(21) height is equal to the height of cylinder protrusive board (22), and is the 1/3 of metal first layer (1) height.
A kind of 2. double-level-metal wedge according to claim 1, which is characterized in that aperture set by the V-type side plate (11)
Aperture be 4-6mm, pitch-row 5-8mm；The aperture of aperture set by first cover board (12) and the second cover board (13) be 2-4mm, hole
Away from for 3-6mm.
3. a kind of double-level-metal wedge according to claim 1, which is characterized in that the cylindrical substrate (21) and cylinder are convex
The aperture of aperture set by plate (22) is 2-4mm, pitch-row 3-6mm.
4. a kind of double-level-metal wedge according to claim 1, which is characterized in that the cylinder protrusive board (22) it is a diameter of
0.2-0.4 times of cylindrical substrate (21) diameter.
5. a kind of double-level-metal wedge according to claim 1, which is characterized in that the metal first layer (1) and metal
Sound-absorbing material is filled in gap between the second layer (2).
6. a kind of double-level-metal wedge according to claim 5, which is characterized in that the sound-absorbing material is obturator-type foam
Plastics, plastic foil or artificial leather.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510344574.5A CN105155704B (en) | 2015-06-19 | 2015-06-19 | A kind of double-level-metal wedge and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510344574.5A CN105155704B (en) | 2015-06-19 | 2015-06-19 | A kind of double-level-metal wedge and preparation method thereof |
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| Publication Number | Publication Date |
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| CN105155704A CN105155704A (en) | 2015-12-16 |
| CN105155704B true CN105155704B (en) | 2018-05-29 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109138193B (en) * | 2018-10-26 | 2020-12-11 | 苏州岸肯电子科技有限公司 | But height-adjusting's sound wedge of inhaling |
| CN111809754A (en) * | 2020-07-20 | 2020-10-23 | 上海泛德声学工程有限公司 | Manufacturing method of sound-absorbing wedge perforated metal plate shell |
| CN114156068B (en) * | 2021-12-09 | 2023-06-27 | 国网福建省电力有限公司 | Composite sound absorption and insulation plate for transformer |
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| CN1076503A (en) * | 1993-05-11 | 1993-09-22 | 王法源 | Sound absorber |
| CN2233956Y (en) * | 1995-09-25 | 1996-08-28 | 王法源 | High-effect sound-absorbing body |
| JPH09195414A (en) * | 1996-01-24 | 1997-07-29 | Hiroshige Fukuhara | Sound absorbing material and sound absorbing device |
| JP2008009014A (en) * | 2006-06-28 | 2008-01-17 | Kobe Steel Ltd | Porous soundproof structure |
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| CN203701314U (en) * | 2014-02-26 | 2014-07-09 | 国家电网公司 | Sound wave insulation embankment with super-powerful sound absorption function |
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| CN105155704A (en) | 2015-12-16 |
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