CN106556130A - A kind of processing technology of the secondary noise-reducing acoustic board of idle call - Google Patents
A kind of processing technology of the secondary noise-reducing acoustic board of idle call Download PDFInfo
- Publication number
- CN106556130A CN106556130A CN201611108132.1A CN201611108132A CN106556130A CN 106556130 A CN106556130 A CN 106556130A CN 201611108132 A CN201611108132 A CN 201611108132A CN 106556130 A CN106556130 A CN 106556130A
- Authority
- CN
- China
- Prior art keywords
- sound
- proof material
- processing technology
- idle call
- acoustic board
- Prior art date
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
- F24F2013/242—Sound-absorbing material
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The invention discloses a kind of processing technology of the secondary noise-reducing acoustic board of idle call, belongs to the technical field of air-conditioner outdoor unit.The present invention includes step one, making Sound-proof material；Step 2, the Sound-proof material made in step one is fitted on the medial surface of air-conditioner outdoor unit dividing plate；Step 3, the Sound-proof material is fixed on the medial surface of dividing plate by screw.The secondary noise-reducing acoustic board of idle call made using technical solution of the present invention, environmental protection, and can further improve the noise reduction technology of air-conditioner outdoor unit, effectively improve the space availability ratio of air-conditioner outdoor unit, the water produce in air-conditioner outdoor unit can be prevented effectively from simultaneously so that the dividing plate in abatvoix is separated with Sound-proof material, and the separation between each layer of Sound-proof material, keep noise reduction.
Description
Technical field
The present invention relates to the technical field of air-conditioner outdoor unit, more particularly, it relates to a kind of secondary noise reduction sound-absorbing of idle call
The processing technology of plate.
Background technology
As requirement of the people to quality of the life is improved constantly, the noise of air-conditioning is increasingly paid attention to by consumer, into
A big Consideration to choose air-conditioning.The noise of air-conditioner outdoor unit is mostly derived from blower fan, compressor and its pipe arrangement of off-premises station
System.Low-Frequency Mechanical noise in the machinery that the medium-high frequency electromagnetic noise and rotor that the motor of press body spreads out of is rotated, it is mutually folded
Plus, to external radiation.In addition, the impact that the flowing of coolant is carried out to pipeline, causes the vibration of pipeline, then the secondary biography by pipeline
Other parts are passed, the narrow-band noise of low frequency and stream cause noise in causing.Coolant and compressor drum rotation inertia force draw
The vibration of compressor for rising, is passed on casing by foundation bolt and pipe arrangement, causes the vibration of body structure, and spoke further out
Penetrate to form high-frequency noises.After off-premises station blower fan is rotated, the air of surrounding accelerates flowing, produces rotational noise and turbulence noise,
Influence each other, to external radiation.Excitation of the air turbulence that blower fan system is brought when running to casing causes dither when the external world
When excitation is consistent with casing natural frequency, there is resonance, noise can also amplified.The noise of air-conditioner not only causes surrounding
Pollution, and affect people live and work.How the sound wave of multiband is weakened, and improving tonequality becomes air-conditioning scientific research personnel
One of center of gravity of work.
At present, the air-conditioner outdoor unit for generally being adopted, mainly by prevent sonic propagation principle come realize eliminate the noise, that is, exist
One layer of Sound-proof material is wrapped up on compressor, compressor is absorbed to extraradial each frequency band acoustic wave energy, is greatly lowered with reaching
The effect of noise, but present circumstances is seen, air-conditioning noise reduction is still reached to less than requiring, needs to be entered on the basis of existing technology
One step is solved.
By patent retrieval, China Patent No.：2012204099192, authorized announcement date is on 02 13rd, 2013, invention
Create entitled：A kind of denoising structure of air-conditioner outdoor unit, this application case disclose a kind of denoising structure of air-conditioner outdoor unit, category
In the technical field of air-conditioner outdoor unit.Denoising structure in this application case, it includes polylith and is bonded on the inside of air-conditioner outdoor unit
Noise elimination module, wherein, noise elimination module is mainly to be made up of sound absorbing layer, connecting pin, Sound-proof material, and connecting pin is arranged on the bottom of sound absorbing layer
Portion, makes to keep at a distance between sound absorbing layer and appended surface, and Sound-proof material is correspondingly arranged between both, and is bonded at the surface
On, meanwhile, the height of the connecting pin of adjacent noise elimination module differs, and makes adjacent sound absorbing layer not at grade.This application case
By arranging noise elimination module in casing of outdoor, each frequency range sound wave of compressor of outdoor unit can be effectively prevented to pass through outer machine panel beating
Part, makes significantly to be weakened by the sound wave of sheet metal component, so as to improve air-conditioner outdoor unit noise abatement, eliminates bad noise,
Improve tonequality, meet high request of the client to noise quality.But this application case is disadvantageous in that：Produce in air-conditioner outdoor unit
Water easily cause the noise elimination module being bonded on the inside of air-conditioner outdoor unit to come off, even result in, scatter and disappear
Noise reduction, simultaneously because limited space in air-conditioner outdoor unit, is difficult to noise elimination module and provides suitable mount point.
China Patent No.：2014101910536, the applying date：On 05 08th, 2014, invention and created name was：Automobile is used
High-fidelity music center, this application case disclose automobile high-fidelity music center, belong to automobile audio field.Automobile in this application case is used
High-fidelity music center, including casing, are bonded with full range acoustical cotton layer on box inside surface, and full range acoustical cotton layer includes nexine and outer
Layer, external sheath nexine, nexine are fire-retardant acoustical cotton layer, are that high polymer is heated using high velocity, hot air, then will be molten
The polymer drawing-off melted is elongated to superfine fibre, then cools and solidifies to form fleece thin layer by superfine fibre, as fire-retardant suction
Sound cotton layer；Microporous membrane or expanded PTFE modified film layer of the outer layer for expanded PTFE, e-PTFE second
Alkene modified film layer is that eptfe film modification is formed expanded PTFE modified film layer.By upper
Mode is stated, this application case full range sound absorbing power is strong, and full range sound-absorbing effect is fairly obvious, can improve the damping capacity of vibration damping, can
Significantly to absorb car noise, while having the advantages of anti-spontaneous combustion generation of anti-flammability, lightweight concurrently.But the deficiency of this application case
Part be：It is that cementation is carried out at a certain temperature by adhesive between each layer of full range acoustical cotton layer in this application case,
And the full range acoustical cotton layer that the glue technique for sticking makes is not particularly suited for being arranged on and is also easy to produce in the air-conditioner outdoor unit of water, and glue
Water technique for sticking is harmful, does not meet environmental requirement.
The content of the invention
1. invention technical problem to be solved
It is an object of the invention to overcome air-conditioner outdoor unit noise reduction technology in prior art immature, and it is bonded in prior art
Noise elimination module on the inside of air-conditioner outdoor unit is easy to fall off due to the presence of condensed water, even results in,
Lost noise reduction, simultaneously because limited space in air-conditioner outdoor unit, is difficult to noise elimination module and provides the deficiencies such as suitable mount point,
There is provided a kind of processing technology of the secondary noise-reducing acoustic board of idle call, the secondary drop of idle call made using technical solution of the present invention
Make an uproar abatvoix, environmental protection, and the noise reduction technology of air-conditioner outdoor unit is can further improve, effectively improve the space utilization of air-conditioner outdoor unit
Rate, while the water produce in air-conditioner outdoor unit can be prevented effectively from so that the dividing plate in abatvoix is separated with Sound-proof material, and sound insulation
Separation between each layer of cotton, keeps noise reduction.
2. technical scheme
To reach above-mentioned purpose, the technical scheme that the present invention is provided is：
A kind of processing technology of the secondary noise-reducing acoustic board of idle call of the present invention, comprises the following steps：
Step one, making Sound-proof material；
Step 2, the Sound-proof material made in step one is fitted on the medial surface of dividing plate；
Step 3, the Sound-proof material is fixed on the medial surface of dividing plate by screw.
Further, the peripheral thickness of the Sound-proof material is 1-3 mm, and beyond the periphery of the Sound-proof material, segment thickness is 9-
11 mm。
Further, the processing technology of the Sound-proof material is comprised the following steps：
1）Tile in mold cavity the first nonwoven layer, in the upper surface tiling acoustical cotton layer of the first nonwoven layer, then is inhaling
Upper surface second nonwoven layer of tiling of sound cotton layer；
2) mould closure, pressurize heating；
3）Mold open, cuts unnecessary leftover pieces, takes out Sound-proof material；
4）Sound-proof material is placed on special tooling and is cooled down；
5）Packaging, vanning.
Further, step 1）In, the thickness of the first nonwoven layer and the second nonwoven layer is 0.5mm, acoustical cotton layer
Thickness be 9-11mm.
Further, the material of first nonwoven layer and the second nonwoven layer is acrylic resin, the polypropylene
The density of resin is 0.9g/ cm3。
Further, the material of the acoustical cotton layer is chemical fibre, and the density of the chemical fibre is 0.5-1.5g/
cm3。
Further, the density of the chemical fibre is 1.0g/ cm3。
Further, step 2）In, the peripheral temperature of mold cavity is 190-250 DEG C, and the periphery of mold cavity is with outside
Temperature is divided to be 140-160 DEG C, die pressure is maintained at 2000 N, the mould dwell time is controlled in 1-8 min.
Further, step 4）In cool time be 10 min.
3. beneficial effect
The technical scheme provided using the present invention, compared with prior art, with following remarkable result：
（1）A kind of processing technology of the secondary noise-reducing acoustic board of idle call of the present invention, by arranging Sound-proof material on the inside of dividing plate, can
The noise reduction technology of air-conditioner outdoor unit is further improved, while suitable mount point position is provided for Sound-proof material, effectively improves air-conditioning
The space availability ratio of off-premises station.
（2）A kind of processing technology of the secondary noise-reducing acoustic board of idle call of the present invention, its first nonwoven layer and the second nothing
The thickness of spinning layer of cloth is the material of 0.5mm, the first nonwoven layer and the second nonwoven layer and is acrylic resin, the polypropylene
The density of resin is 0.9g/ cm3；The thickness of acoustical cotton layer is 9-11mm, and the material of acoustical cotton layer is chemical fibre, the chemistry
The density of fiber is 0.5-1.5g/ cm3.The material of each layer of Sound-proof material, density and thickness are arranged and can both realize air-conditioner outdoor unit
Secondary noise reduction, cost-effective requirement can be met again.
（3）The processing technology of the secondary noise-reducing acoustic board of a kind of idle call of the present invention, by height between each layer of its Sound-proof material
Warm compression molding, without using binding agent, saves raw material, has been effectively accomplished the effect of environmental protection, and the week of the Sound-proof material
Side and periphery, are arranged higher than Sound-proof material by the periphery molding temperature by Sound-proof material by different temperatures compression molding with outer portion
Periphery with outer portion molding temperature so that the peripheral thickness of Sound-proof material be 1-3 mm, beyond periphery segment thickness be 9-11 mm
.So design purpose be：On the one hand, peripheral thickness can improve the tearing strength of Sound-proof material for the featheredge of 1-3 mm, and more
Easily fit with the periphery of dividing plate installation, meanwhile, during life-time service, will not cause because of the water produced in air-conditioner outdoor unit
Separate between each layer of Sound-proof material, keep noise reduction, improve the service life of the secondary noise-reducing acoustic board of the idle call；The opposing party
Face, beyond periphery, segment thickness preferably can be fitted with dividing plate for the Sound-proof material of 9-11 mm, and not disturb in air-conditioner outdoor unit
The setting of other parts, it is most important that maximum secondary noise reduction can be realized.
Specific embodiment
To further appreciate that present disclosure, the present invention is described in detail in conjunction with the embodiments.
With reference to embodiment, the invention will be further described.
Embodiment 1
A kind of processing technology of the secondary noise-reducing acoustic board of idle call of the present embodiment, specifically comprises the steps of：
Step one, making Sound-proof material；
Step 2, the Sound-proof material made in step one is fitted on the medial surface of dividing plate；
Step 3, the Sound-proof material is fixed on the medial surface of dividing plate by screw.It should be noted that：In prior art generally
All it is that noise elimination module is set in air-conditioner outdoor unit by way of glue bonding, but during life-time service, is bonded at air-conditioning
Noise elimination module on the inside of off-premises station is easy to fall off due to the presence of condensed water, and the present embodiment passes through screw mounting means by Sound-proof material
On being fixed on the inside of dividing plate, the dividing plate not only solved very well in the secondary noise-reducing acoustic board of the idle call is asked with Sound-proof material isolation technics
Topic, simultaneously as the Sound-proof material in the present invention is by hot press moulding molding, therefore will not reduce because of the screw mounting means
The intensity of Sound-proof material.
The secondary noise-reducing acoustic board of idle call in the present embodiment includes dividing plate, also including being arranged on the inside of dividing plate, and with every
The corresponding Sound-proof material of plate inside structure, by arranging Sound-proof material on the inside of dividing plate, the noise that can effectively prevent compressor from producing
The noise produced with blower fan is overlapped mutually, and further improves the noise reduction technology of air-conditioner outdoor unit, while providing properly for Sound-proof material
Mount point position, effectively improve the space availability ratio of air-conditioner outdoor unit.It should be noted that：Dividing plate includes straight plate part and bent plate
Portion, respectively positioned at the straight plate part both sides of dividing plate, the setting of the dividing plate effectively can keep away the blower fan and compressor in air-conditioner outdoor unit
Mutually altering between Fan-free and each frequency of compressor, and prevent water from entering compressor, the service life of compressor is reduced, together
When, the setting of dividing plate can also provide mount point position for the other parts in air-conditioner outdoor unit.Sound-proof material also includes straight plate part
With bent plate portion, the straight plate part of the Sound-proof material, the bent plate portion of Sound-proof material and the straight plate part of dividing plate, the bent plate portion of dividing plate correspond phase
Laminating.
The processing technology of the Sound-proof material is comprised the following steps：
1）Tile in mold cavity the first nonwoven layer, in the upper surface tiling acoustical cotton layer of the first nonwoven layer, then is inhaling
Upper surface second nonwoven layer of tiling of sound cotton layer, wherein, the thickness of the first nonwoven layer and the second nonwoven layer is
The material of 0.5mm, the first nonwoven layer and the second nonwoven layer is acrylic resin, and the density of the acrylic resin is
0.9g/ cm3；The thickness of acoustical cotton layer is 9-11mm, and the material of acoustical cotton layer is chemical fibre, and the density of the chemical fibre is
0.5-1.5g/ cm3.In the present embodiment, the density of chemical fibre is preferably 1.0g/cm3.The material of each layer of Sound-proof material in the present invention,
Density and thickness arrange the secondary noise reduction that can have both realized air-conditioner outdoor unit, can meet cost-effective requirement again.Need
Bright is：The length and width of the first nonwoven layer, acoustical cotton layer and the second nonwoven layer is equivalently-sized, and is all higher than mold cavity
Size, first nonwoven layer, acoustical cotton layer and the second nonwoven layer justified margin are stacked in mold cavity.
2) mould closure, pressurize heating.
It is to be bonded together by glue between each layer of noise elimination module in prior art, due to producing in air-conditioner outdoor unit
Water so that the viscosity of glue is reduced, causes to separate between each layer, noise reduction of scattering and disappearing, meanwhile, with human health realize by
Step is strengthened, and the raising to environmental requirement, and glue technique for sticking of the prior art has been not suitable with modern air conditioning development need,
And in the present invention, by hot press moulding molding between each layer of Sound-proof material, without using binding agent, raw material is saved, effectively
Reached environmental protection effect, and the periphery and periphery of the Sound-proof material with outer portion pass through different temperatures compression molding.This enforcement
In example, the peripheral temperature of mold cavity is 190-250 DEG C, and beyond the periphery of mold cavity, portion temperature is 140-160 DEG C, mould
Pressure is maintained at 2000 N, and the mould dwell time is controlled in 1-8 min.It should be noted that：By by the periphery mould of Sound-proof material
Pressure temperature setting higher than Sound-proof material periphery with outer portion molding temperature so that the peripheral thickness of Sound-proof material be 1-3 mm, periphery
Segment thickness is 9-11 mm in addition.So design purpose be：On the one hand, peripheral thickness can be improved for the featheredge of 1-3 mm
The tearing strength of Sound-proof material, and installation of fitting with the periphery of dividing plate is more easy to, meanwhile, during life-time service, will not be because of sky
Adjust the water produced in off-premises station to cause to separate between each layer of Sound-proof material, keep noise reduction, improve the secondary noise reduction of the idle call and inhale
The service life of soundboard；On the other hand, beyond periphery, segment thickness preferably can be pasted with dividing plate for the Sound-proof material of 9-11 mm
Close, and do not disturb the setting of other parts in air-conditioner outdoor unit, it is most important that maximum secondary noise reduction can be realized.Specifically at this
In embodiment, the peripheral temperature of mold cavity is 220 DEG C, and beyond the periphery of mold cavity, portion temperature is 150 DEG C, mould pressurize
Time control is in 4.5 min.The peripheral thickness of Sound-proof material is 2 mm, and beyond the periphery of the Sound-proof material, segment thickness is 10 mm.
3）Mold open, cuts unnecessary leftover pieces, takes out Sound-proof material.
4）Sound-proof material is placed on special tooling and is cooled down, it is to avoid Sound-proof material deforms, cool time is 10
min。
5）Packaging, vanning.
Embodiment 2
With embodiment 1, except that, in the present embodiment, the density of chemical fibre is preferably 0.5g/ cm3, the week of mold cavity
Side temperature is 190 DEG C, and beyond the periphery of mold cavity, portion temperature is 140 DEG C, and the mould dwell time is controlled in 1 min, sound insulation
The peripheral thickness of cotton is 3 mm, and beyond the periphery of the Sound-proof material, segment thickness is 11mm.
Embodiment 3
With embodiment 1, except that, in the present embodiment, the density of chemical fibre is preferably 1.5g/ cm3, the week of mold cavity
Side temperature is 250 DEG C, and beyond the periphery of mold cavity, portion temperature is 160 DEG C, and the mould dwell time is controlled in 8min, Sound-proof material
Peripheral thickness be 1 mm, beyond the periphery of the Sound-proof material segment thickness be 9 mm.
Below schematically the present invention and embodiments thereof are described, the description is not restricted.So, if
One of ordinary skill in the art is enlightened by which, in the case of without departing from the invention objective, without creative design
Go out the mode of production similar to the technical scheme and embodiment, protection scope of the present invention all should be belonged to.
Claims (9)
1. the processing technology of the secondary noise-reducing acoustic board of a kind of idle call, it is characterised in that：It comprises the following steps：
Step one, making Sound-proof material；
Step 2, the Sound-proof material made in step one is fitted on the medial surface of dividing plate；
Step 3, the Sound-proof material is fixed on the medial surface of dividing plate by screw.
2. the processing technology of the secondary noise-reducing acoustic board of a kind of idle call according to claim 1, it is characterised in that：It is described every
The peripheral thickness of sound cotton is 1-3 mm, and beyond the periphery of the Sound-proof material, segment thickness is 9-11 mm.
3. the processing technology of the secondary noise-reducing acoustic board of a kind of idle call according to claim 2, it is characterised in that：It is described every
The processing technology of sound cotton is comprised the following steps：
1）Tile in mold cavity the first nonwoven layer, in the upper surface tiling acoustical cotton layer of the first nonwoven layer, then is inhaling
Upper surface second nonwoven layer of tiling of sound cotton layer；
2) mould closure, pressurize heating；
3）Mold open, cuts unnecessary leftover pieces, takes out Sound-proof material；
4）Sound-proof material is placed on special tooling and is cooled down；
5）Packaging, vanning.
4. the processing technology of the secondary noise-reducing acoustic board of a kind of idle call according to claim 3, it is characterised in that：Step 1）
In, the thickness of the first nonwoven layer and the second nonwoven layer is 0.5mm, and the thickness of acoustical cotton layer is 9-11mm.
5. the processing technology of the secondary noise-reducing acoustic board of a kind of idle call according to claim 4, it is characterised in that：Described
The material of one nonwoven layer and the second nonwoven layer is acrylic resin, and the density of the acrylic resin is 0.9g/ cm3。
6. the processing technology of the secondary noise-reducing acoustic board of a kind of idle call according to claim 4, it is characterised in that：The suction
The material of sound cotton layer is chemical fibre, and the density of the chemical fibre is 0.5-1.5g/ cm3。
7. the processing technology of the secondary noise-reducing acoustic board of a kind of idle call according to claim 6, it is characterised in that：Describedization
The density for learning fiber is 1.0g/cm3。
8. the processing technology of the secondary noise-reducing acoustic board of a kind of idle call according to claim 3, it is characterised in that：Step
2）In, the peripheral temperature of mold cavity is 190-250 DEG C, and beyond the periphery of mold cavity, portion temperature is 140-160 DEG C, mould
Pressure is maintained at 2000 N, and the mould dwell time is controlled in 1-8 min.
9. the processing technology of the secondary noise-reducing acoustic board of a kind of idle call according to claim 3, it is characterised in that：Step
4）In cool time be 10 min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611108132.1A CN106556130A (en) | 2016-12-06 | 2016-12-06 | A kind of processing technology of the secondary noise-reducing acoustic board of idle call |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611108132.1A CN106556130A (en) | 2016-12-06 | 2016-12-06 | A kind of processing technology of the secondary noise-reducing acoustic board of idle call |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106556130A true CN106556130A (en) | 2017-04-05 |
Family
ID=58446413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611108132.1A Pending CN106556130A (en) | 2016-12-06 | 2016-12-06 | A kind of processing technology of the secondary noise-reducing acoustic board of idle call |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106556130A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202764284U (en) * | 2012-08-23 | 2013-03-06 | 温州市亿得宝化纤有限公司 | Composite non-woven sound absorption cotton |
| CN103568465A (en) * | 2012-08-10 | 2014-02-12 | 芜湖跃飞新型吸音材料股份有限公司 | Production process of soundproof cotton |
| CN103726219A (en) * | 2013-11-25 | 2014-04-16 | 芜湖跃飞新型吸音材料股份有限公司 | Isotactic polypropylene/EVA resin composite non-woven fabric material for sound absorption cotton |
| CN203823941U (en) * | 2014-04-16 | 2014-09-10 | 青岛海尔空调器有限总公司 | Sound-proof cotton and outdoor unit of air conditioner adopting same |
| CN204357315U (en) * | 2014-12-26 | 2015-05-27 | 四川宏华电气有限责任公司 | A kind of machine room noise isolation noise-reducing structure |
| WO2015093684A1 (en) * | 2013-12-19 | 2015-06-25 | 현대자동차 주식회사 | Sound-absorbing/insulating material and method for producing same |
| CN105568564A (en) * | 2016-03-21 | 2016-05-11 | 林云权 | Polypropylene acoustic wool and preparation technology thereof |
| CN105986364A (en) * | 2016-01-26 | 2016-10-05 | 芜湖环瑞汽车内饰件有限公司 | High-tenacity high-weatherability sound absorbing cotton and preparation method thereof |
-
2016
- 2016-12-06 CN CN201611108132.1A patent/CN106556130A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103568465A (en) * | 2012-08-10 | 2014-02-12 | 芜湖跃飞新型吸音材料股份有限公司 | Production process of soundproof cotton |
| CN202764284U (en) * | 2012-08-23 | 2013-03-06 | 温州市亿得宝化纤有限公司 | Composite non-woven sound absorption cotton |
| CN103726219A (en) * | 2013-11-25 | 2014-04-16 | 芜湖跃飞新型吸音材料股份有限公司 | Isotactic polypropylene/EVA resin composite non-woven fabric material for sound absorption cotton |
| WO2015093684A1 (en) * | 2013-12-19 | 2015-06-25 | 현대자동차 주식회사 | Sound-absorbing/insulating material and method for producing same |
| CN203823941U (en) * | 2014-04-16 | 2014-09-10 | 青岛海尔空调器有限总公司 | Sound-proof cotton and outdoor unit of air conditioner adopting same |
| CN204357315U (en) * | 2014-12-26 | 2015-05-27 | 四川宏华电气有限责任公司 | A kind of machine room noise isolation noise-reducing structure |
| CN105986364A (en) * | 2016-01-26 | 2016-10-05 | 芜湖环瑞汽车内饰件有限公司 | High-tenacity high-weatherability sound absorbing cotton and preparation method thereof |
| CN105568564A (en) * | 2016-03-21 | 2016-05-11 | 林云权 | Polypropylene acoustic wool and preparation technology thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9093060B2 (en) | Sound-proof material and process for production thereof, sound-proof molding, and sound insulation method | |
| US20080274274A1 (en) | Thermoformable acoustic sheet | |
| JP2016508901A (en) | Method for manufacturing weight-reduced multilayered acoustic member with adjustable air flow resistance | |
| CN201054246Y (en) | Vibration reduction, sound absorption and compound material structure | |
| US20080236936A1 (en) | Soundproof cover | |
| CN204323243U (en) | For the sound absorption part of electronlmobil | |
| CN207458569U (en) | Sound panel and blimp | |
| JP2016531315A (en) | Expanded PTFE composite fiber cotton with high sound absorption coefficient | |
| CN206159575U (en) | Novel automobile body relief valve | |
| CN105538841A (en) | Sound-insulating pad used inside automobile and preparation process of sound-insulating pad | |
| KR20050071403A (en) | Sound absorbing material for car and thereof manufacturing method | |
| CN104590152B (en) | A kind of environmental protection lightweight sound insulating pad and production method thereof | |
| CN106556130A (en) | A kind of processing technology of the secondary noise-reducing acoustic board of idle call | |
| CN106839385A (en) | A kind of manufacture craft of the secondary noise-reducing acoustic board of idle call | |
| CN206377828U (en) | A kind of secondary noise-reducing acoustic board of idle call | |
| CN106653286A (en) | Noise reduction shell for American type box transformer | |
| CN111267751B (en) | Lightweight motor-wrapped acoustic sound insulation material and preparation method thereof | |
| CN105082695B (en) | A kind of preparation method of automobile acoustical absorption carpet | |
| JP2002220009A5 (en) | ||
| JP2007030268A (en) | Sound absorbing/cutting-off material | |
| CN106338140A (en) | The Air guide ring, air conditioner outdoor unit and air conditioner | |
| KR101205092B1 (en) | Manufacturing Method of Wheel Guard for Vehicle | |
| CN206207692U (en) | Perforation air-ducting ring, air-conditioner outdoor unit and air-conditioner | |
| KR20200062087A (en) | Engine room separation wall for a vehicle with improved sound insulation and reduced weight | |
| JP3496761B2 (en) | Soundproofing material for air conditioner outdoor unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170405 |
|
| RJ01 | Rejection of invention patent application after publication |