CN101392675A - Environment protection sound deadening heat insulation pad for automobile engine - Google Patents
Environment protection sound deadening heat insulation pad for automobile engine Download PDFInfo
- Publication number
- CN101392675A CN101392675A CNA2008101221839A CN200810122183A CN101392675A CN 101392675 A CN101392675 A CN 101392675A CN A2008101221839 A CNA2008101221839 A CN A2008101221839A CN 200810122183 A CN200810122183 A CN 200810122183A CN 101392675 A CN101392675 A CN 101392675A
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- China
- Prior art keywords
- polyster fibre
- heat insulation
- automobile engine
- sound deadening
- insulation pad
- 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.)
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- Nonwoven Fabrics (AREA)
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
Abstract
The invention discloses an environment-friendly muffling and thermal insulating cushion for an automobile engine, which comprises a non-woven fabric layer compounded on the front face and the reverse side of a polyester fiber layer. The polyester fiber layer comprises a first polyester fiber and a second polyester fiber, the first polyester fiber and the second polyester fiber have different melting points and form the environment-friendly muffing and thermal insulating cushion for the automobile engine through pinpricks, and the heating temperature is between the melting point of the first polyester fiber and the melting point of the second polyester fiber during the pinprick. The environment-friendly muffling and thermal insulating cushion for the automobile engine is environment-friendly, and also has unique advantages in aspects of muffling, thermal insulation, and recycling.
Description
(1) technical field
The present invention relates to a kind of motor car engine thermal insulating pad.
(2) background technique
The motor car engine thermal insulating pad of domestic production at present, be by glass fibre or regeneration cotton according to certain ratio mixed phenol urea formaldehyde, the surface recombination nonwovens gets by heating compression moulding.This type of heat insulation following shortcoming and problem of being lined with:
1. glass fibre and phenolic resin all are toxic substances; when producing, heating can produce niff and poisonous dust; Manufacturing Worker's inspiration goes to the back to return various illnesss such as respiratory disease occur; company needs the employee to carry out the health that a large amount of health investments is protected the employee, but can't stop pollution of atmosphere.In the automobile using process, this type of thermal insulating pad also can produce toxic gas and dust and enter in the atmosphere atmosphere pollution.Behind motor vehicle liquidation, this type of thermal insulating pad can not be recycled, and can not decompose under the natural condition, for a long time environment is polluted.So banned use of glass fibre and phenolic resin in a lot of national many fields, automobile industry also can progressively ban use of glass fibre and phenolic resin.
2. performance muffler is bad, can't effectively abate the noise, and keeps quiet environment in the car.The sound deadening heat insulation pad of this manufacture of materials through after the hot briquetting, has become an air-locked film, can not realize reducing by the pore friction vibrational energy of gas, reduces noise.Can only be under certain gas frequency, sound deadening heat insulation pad be formed the energy of resonance absorption gas, thereby reduce noise by gas.But because the work operating mode of motor car engine is very complicated, the frequency of each stage engine operation is all inconsistent, so this type of sound deadening heat insulation pad can only have tangible sound deadening at a certain working stage, other working stage that does not resonate is then not obvious.
3. effect of heat insulation is bad, and the composite material of glass fibre or regeneration cotton and phenolic resin can not expand in the situation that heats, so this type of sound deadening heat insulation pad always forms relatively film of one deck in hot briquetting, heat is easy to penetrate, and heat insulation effect is poor.The density of film is bigger, and heat-conducting property is also relatively good, has also greatly reduced the heat-shielding performance of sound deadening heat insulation pad.If do sound deadening heat insulation pad very thick, then waste wide variety of materials, and increase the weight of pollution, and can increase the weight of automobile environment, strengthened the energy consumption of automobile, just increased the consumption of gasoline, both befouling environment was also wasted resource.
(3) summary of the invention
In order to overcome the above-mentioned deficiency of existing motor car engine thermal insulating pad, the invention provides a kind of environmental protection, erasure effect and the better environment protection sound deadening heat insulation pad for automobile engine of effect of heat insulation.
The technological scheme that the present invention solves its technical problem is: a kind of environment protection sound deadening heat insulation pad for automobile engine, this environment protection sound deadening heat insulation pad for automobile engine comprise that the polyster fibre layer is compounded in the nonwoven layer of polyster fibre layer obverse and reverse; Described polyster fibre layer comprises first polyster fibre and second polyster fibre, described first polyster fibre is different with the fusing point of second polyster fibre, the described polyster fibre and second polyster fibre form environment protection sound deadening heat insulation pad for automobile engine through acupuncture, and heating-up temperature is between the fusing point of the fusing point of first polyster fibre and second polyster fibre during acupuncture.
Preferably, described first polyster fibre is terylene 6DX51, and described second polyster fibre is a terylene 4080.
Beneficial effect of the present invention is: use the material of terylene as sound deadening heat insulation pad 1., because terylene is a kind of non-toxic material, can guarantee the feature of environmental protection of the present invention, polyster fibre can not volatilize under 280 ℃ the condition of high temperature yet and produce gas, meet the requirement that does not produce toxic gas and poisonous volatile matter under production and the applying working condition fully, and the terylene stable performance, permanent under field conditions (factors) maintenance is stable.2. nonwovens and polyster fibre layer are compound, and entire product forms a film, possess the characteristics of resonance noise reduction sound.Because nonwovens is ventilative, there are many pores to penetrate, add that acupuncture polyster fibre layer also breathes freely, and vertebration, institute is so that entire product possesses the effect that pore friction reduction noise is arranged.Two kinds of modes that reduce noises overlap, and making all has good performance muffler under any frequency of product, even when the present invention and existing sound deadening heat insulation pad all resonate, erasure effect of the present invention also is better than existing sound deadening heat insulation pad.3. expand through meeting after heating with the good polyster fibre layer of terylene acupuncture, increase the thickness of product, increase effect of heat insulation.Polyster fibre layer both sides reduce gas flow or stabilizing gas with non-woven fabric compounded, make product can produce heat conduction hardly, because the heat conduction of gas is low-down.And weight of the present invention is very light, and density is very little, also weakens the heat conduction of product.4. behind motor vehicle liquidation, the present invention can remove to break up and continue to utilize, and the performance of material does not almost change.
(4) embodiment
Below in conjunction with embodiment the present invention is described in further detail.
A kind of environment protection sound deadening heat insulation pad for automobile engine, this environment protection sound deadening heat insulation pad for automobile engine comprise that the polyster fibre layer is compounded in the nonwoven layer of polyster fibre layer obverse and reverse; Described polyster fibre layer comprises first polyster fibre and second polyster fibre, the polyster fibre of single fusing point can't moulding, because have only with ability moulding and cooling and shaping after the material heat fused, but can use the polyster fibre of two kinds of fusing points to mix acupuncture, the temperature of heating is between the fusing point of two kinds of materials, low-melting fiber is dissolved, moulding cooling and shaping then, shape as required cuts down product and gets final product again, therefore described first polyster fibre is different with the fusing point of second polyster fibre, the described polyster fibre and second polyster fibre form environment protection sound deadening heat insulation pad for automobile engine through acupuncture, heating-up temperature is between the fusing point of the fusing point of first polyster fibre and second polyster fibre during acupuncture, low-melting polyster fibre is dissolved, moulding cooling and shaping then, shape as required cuts down product and gets final product again, then in the both sides of polyster fibre layer compound by hot pressing on nonwovens.
In the present embodiment, described first polyster fibre is terylene 6DX51 (fusing point is 260 ℃), and described second polyster fibre is terylene 4080 (fusing point is 140 ℃), and heating-up temperature is 180 ℃ during acupuncture.
Claims (2)
1. environment protection sound deadening heat insulation pad for automobile engine, it is characterized in that: this environment protection sound deadening heat insulation pad for automobile engine comprises that the polyster fibre layer is compounded in the nonwoven layer of polyster fibre layer obverse and reverse;
Described polyster fibre layer comprises first polyster fibre and second polyster fibre, described first polyster fibre is different with the fusing point of second polyster fibre, the described polyster fibre and second polyster fibre form environment protection sound deadening heat insulation pad for automobile engine through acupuncture, and heating-up temperature is between the fusing point of the fusing point of first polyster fibre and second polyster fibre during acupuncture.
2. environment protection sound deadening heat insulation pad for automobile engine as claimed in claim 1 is characterized in that: described first polyster fibre is terylene 6DX51, and described second polyster fibre is a terylene 4080.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101221839A CN101392675A (en) | 2008-11-10 | 2008-11-10 | Environment protection sound deadening heat insulation pad for automobile engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101221839A CN101392675A (en) | 2008-11-10 | 2008-11-10 | Environment protection sound deadening heat insulation pad for automobile engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101392675A true CN101392675A (en) | 2009-03-25 |
Family
ID=40493161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101221839A Pending CN101392675A (en) | 2008-11-10 | 2008-11-10 | Environment protection sound deadening heat insulation pad for automobile engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101392675A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103147231A (en) * | 2011-12-07 | 2013-06-12 | 索拉伊斯隔绝处理独资有限公司 | Method and machine for producing a sound-deadening insert for silencer of an exhaust-gas discharge system of an internal-combustion engine |
| CN104149423A (en) * | 2014-08-05 | 2014-11-19 | 昆山同昌汽车新材料有限公司 | High strength and low elongation non-woven fabric for vehicle seats and manufacture method thereof |
| CN108642715A (en) * | 2018-05-02 | 2018-10-12 | 长春超维科技产业有限责任公司 | A method of it improves with PET felt comprehensive performances in felt wheelhouse |
-
2008
- 2008-11-10 CN CNA2008101221839A patent/CN101392675A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103147231A (en) * | 2011-12-07 | 2013-06-12 | 索拉伊斯隔绝处理独资有限公司 | Method and machine for producing a sound-deadening insert for silencer of an exhaust-gas discharge system of an internal-combustion engine |
| CN104149423A (en) * | 2014-08-05 | 2014-11-19 | 昆山同昌汽车新材料有限公司 | High strength and low elongation non-woven fabric for vehicle seats and manufacture method thereof |
| CN104149423B (en) * | 2014-08-05 | 2016-08-24 | 昆山同昌汽车新材料有限公司 | A kind of high-strength flatness automotive seat non-woven fabrics and manufacture method |
| CN108642715A (en) * | 2018-05-02 | 2018-10-12 | 长春超维科技产业有限责任公司 | A method of it improves with PET felt comprehensive performances in felt wheelhouse |
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Open date: 20090325 |