CN103541801A - Engine exhaust manifold and method for machining same - Google Patents
Engine exhaust manifold and method for machining same Download PDFInfo
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- CN103541801A CN103541801A CN201310559784.7A CN201310559784A CN103541801A CN 103541801 A CN103541801 A CN 103541801A CN 201310559784 A CN201310559784 A CN 201310559784A CN 103541801 A CN103541801 A CN 103541801A
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- layer
- panel beating
- absorbing material
- sound
- material layer
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- 238000000034 method Methods 0.000 title claims abstract description 7
- 238000003754 machining Methods 0.000 title abstract 2
- 239000011358 absorbing material Substances 0.000 claims abstract description 28
- 239000000835 fiber Substances 0.000 claims abstract description 13
- 239000000919 ceramic Substances 0.000 claims abstract description 11
- 235000019354 vermiculite Nutrition 0.000 claims abstract description 11
- 238000010009 beating Methods 0.000 claims description 36
- 229910052902 vermiculite Inorganic materials 0.000 claims description 10
- 239000010455 vermiculite Substances 0.000 claims description 10
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 6
- 229920002472 Starch Polymers 0.000 claims description 5
- 239000000853 adhesive Substances 0.000 claims description 5
- 230000001070 adhesive effect Effects 0.000 claims description 5
- 235000019698 starch Nutrition 0.000 claims description 5
- 239000008107 starch Substances 0.000 claims description 5
- 230000001680 brushing effect Effects 0.000 claims description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 3
- 239000001569 carbon dioxide Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000009413 insulation Methods 0.000 abstract description 6
- 239000002184 metal Substances 0.000 abstract description 6
- 238000009826 distribution Methods 0.000 abstract description 2
- 239000012774 insulation material Substances 0.000 abstract 3
- 238000003672 processing method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000004323 axial length Effects 0.000 description 2
- -1 by organic bond Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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- Exhaust Silencers (AREA)
Abstract
The invention discloses an engine exhaust manifold, and further discloses a method for machining the engine exhaust manifold. The engine exhaust manifold comprises an inner metal plate layer, a sound insulation and absorbing material layer and an outer metal plate layer, wherein the sound insulation and absorbing material layer is arranged between the inner metal plate layer and the outer metal plate layer, and the sound insulation and absorbing material layer is formed by mixing vermiculites and ceramic fibers through organic bond. The engine exhaust manifold guarantees functions of an engine gas distribution system and can also effectively isolate high-frequency exhaust noise and improve the NVH level of an automobile through the sound insulation and absorbing layer.
Description
Technical field
The invention belongs to technical field of automobile engine, particularly a kind of enmgine exhaust and processing method thereof.
Background technique
Along with the raising of expanding economy and people's living standard, automobile has become a kind of popular consumer goods.At present automotive engineering is constantly weeded out the old and bring forth the new, and the comfort property of automobile just usually becomes one of key factor of differentiation automobile brand quality as vibration and noise.Therefore, automobile vendor pays much attention to improves noise and vibration performance, and represents the feature of new model with it, using vibration noise performance as one of attractable point.In decades, internal car noise reduces greatly with vibration.Along with the performance improvement of main noise vibration source, originally many less important noise and vibrations source highlights, and therefore, the noise and vibration of reduction system and component becomes more and more important.Motor is the heart of automobile, is the source of automobile power, is also vibration and noise source maximum on automobile simultaneously.Exhaust sound is one of emphasis solving Integral automobile NVH level always, and turbulent flow, eddy current that the high-speed gas of discharging after motor acting forms in gas exhaust manifold produce high-frequency noise, directly affect vehicle driver and passenger's travelling comfort.Complicated along with gas exhaust manifold, individual layer metal plate punching product is widely used, and motor car engine adopts individual layer metal plate punching to form with gas exhaust manifold more at present, because gas exhaust manifold is thin-walled parts, its anti-vibration ability a little less than, so can produce larger vibration noise when engine operation.So reduce car load noise level by reducing the noise source at gas exhaust manifold place to reach, it is the problem that those skilled in the art need to solve.
Summary of the invention
For the deficiencies in the prior art, first object of the present invention is to provide that a kind of soundproof effect is good, good anti-vibration, enmgine exhaust easy to process, and second object of the present invention is to provide a kind of enmgine exhaust processing method.
In order to reach above-mentioned first object, the invention provides a kind of enmgine exhaust, comprise interior panel beating layer, every sound-absorbing material layer, outer panel beating layer, between interior panel beating layer and outer panel beating layer, be every sound-absorbing material layer, describedly every sound-absorbing material layer, by vermiculite, ceramic fiber, by organic bond, mix and form.This kind is every sound absorption structure good stability at high temperature, take full advantage of lightweight, the antivibration of ceramic fiber and vermiculite and become porosity high under good with sound insulation value, hot, between two-layer panel beating, form good pore layer of fibers, make high-frequency noise between fiber and pore, reflect, reflect, by noise energy consumption, thereby reach the object of antivibration sound insulation, effectively prevent the energy emission that high-frequency noise is outside.And the present invention is simple in structure, easily manufacturing.
Further, the ceramic fiber of the described vermiculite that contains weight percentage 45-55% every sound-absorbing material layer, weight percentage 40-50% and the organic bond of weight percentage 5-15%.
Further, described organic bond is starch adhesive.
Further, described organic bond is PS203C starch adhesive.
Second object of the present invention is to provide a kind of enmgine exhaust processing method, said method comprising the steps of:
(1) with enmgine exhaust, be divided into the structure shape of upper and lower two halves shell, respectively the outer panel beating layer of drawing, interior panel beating layer;
(2) the upper and lower two halves shell of interior panel beating layer is welded together;
(3) vermiculite, ceramic fiber are mixed to rear brushing on interior panel beating layer with organic bond, form every sound-absorbing material layer;
(4) the upper and lower two halves shell of interior panel beating layer and outer panel beating layer is connected together by carbon-dioxide arc welding, forms enmgine exhaust, every sound-absorbing material layer be clipped in two-layer between.
Enmgine exhaust processing method provided by the invention, the inside cavity that will effectively be enclosed in every sound-absorbing material layer inside and outside panel beating forms, gas exhaust manifold has preferably every sound-absorbing effect, and this processing technology is simple and practical, easy operating.
Accompanying drawing explanation
Fig. 1 is gas exhaust manifold generalized section provided by the invention.
Wherein, outer panel beating layer 1, every sound-absorbing material layer 2, interior panel beating layer 3
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Referring to Fig. 1, the invention provides a kind of enmgine exhaust, comprise outer panel beating layer 1, every sound-absorbing material layer 2, interior panel beating layer 3, between outer panel beating layer 1 and interior panel beating layer 3, be every sound-absorbing material layer 2, describedly every sound-absorbing material layer 2, by vermiculite, ceramic fiber, by organic bond, mix and form.Adopt three-decker, the inside cavity of inside and outside panel beating formation will be effectively enclosed in every sound-absorbing material layer 2, form and there is the better gas exhaust manifold every sound-absorbing effect, when noise is by panel beating during to external radiation, middle interval sound-absorbing material layer layer can effectively intercept, absorption of noise energy, reaches and falls low noise object.
Referring to Fig. 1, after adopting steel plate to divide the impact briquetting of upper and lower two halves shell, interior panel beating layer 3 is welded as a whole, its cross section comprises the half-round at middle part and the flange that edge arranges along axial length direction, and flange was positioned at the same face of diameter, and the shell of two halves up and down of interior panel beating layer 3 is at flanging welded.Outer panel beating layer 1 also adopts steel plate to divide the impact briquetting of upper and lower two halves shell; also comprise the half-round at middle part and the flange that edge arranges along axial length direction; every sound-absorbing material layer 2, by vermiculite, ceramic fiber, organic bond, after mixing, be painted on interior panel beating layer 3; after the assemblying body of sound-absorbing material layer 2 and interior panel beating layer 3 and the combination of the shell of two halves up and down of outer panel beating layer 1; in flange position, by carbon-dioxide arc welding, connect in succession, can according to the form below assembly every sound-absorbing material layer.
| Vermiculite (weight percentage) | Ceramic fiber (weight percentage) | Organic bond (weight percentage) |
| 45 | 50 | 5 |
| 45 | 45 | 10 |
| 45 | 40 | 15 |
| 50 | 40 | 10 |
| 55 | 40 | 5 |
That by said ratio, makes is more stable, better every acoustically effective every sound-absorbing material layer performance.Organic bond adopts the starch adhesive that model is PS203C, and this kind of tackiness agent is conducive to mix brushing, and at high temperature carbonization rapidly, can not affect the original performance every absorbent treatment.
Enmgine exhaust provided by the invention, when ensureing engine air distribution system function, can utilize every sound-absorbing material layer and effectively exhaust high-frequency noise be kept apart again, effectively promotes auto NVH level.For the motor of different model, discharge capacity, can according to actual exhaust air manifold shapes, adjust the parameters such as definite area every sound-absorbing material, thickness, realize good defening effect.
Claims (5)
1. an enmgine exhaust, comprises interior panel beating layer, every sound-absorbing material layer, outer panel beating layer, between interior panel beating layer and outer panel beating layer, is every sound-absorbing material layer, describedly every sound-absorbing material layer, by vermiculite, ceramic fiber, by organic bond, is mixed and is formed.
2. enmgine exhaust according to claim 1, the ceramic fiber of the described vermiculite that contains weight percentage 45-55% every sound-absorbing material layer, weight percentage 40-50% and the organic bond of weight percentage 5-15%.
3. enmgine exhaust according to claim 1 and 2, is characterized in that, described organic bond is starch adhesive.
4. enmgine exhaust according to claim 1 and 2, is characterized in that, described organic bond is PS203C starch adhesive.
5. the enmgine exhaust method of processing as described in claim 1 to 4 any one, said method comprising the steps of:
(1) with enmgine exhaust, be divided into the structure shape of upper and lower two halves shell, respectively the outer panel beating layer of impact briquetting, interior panel beating layer;
(2) the upper and lower two halves shell of interior panel beating layer is welded together;
(3) vermiculite, ceramic fiber are mixed to rear brushing on interior panel beating layer with organic bond, form every sound-absorbing material layer;
(4) the upper and lower two halves shell of interior panel beating layer and outer panel beating layer is connected together by carbon-dioxide arc welding, forms enmgine exhaust, every sound-absorbing material layer be clipped in two-layer between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310559784.7A CN103541801A (en) | 2013-11-12 | 2013-11-12 | Engine exhaust manifold and method for machining same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310559784.7A CN103541801A (en) | 2013-11-12 | 2013-11-12 | Engine exhaust manifold and method for machining same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103541801A true CN103541801A (en) | 2014-01-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310559784.7A Pending CN103541801A (en) | 2013-11-12 | 2013-11-12 | Engine exhaust manifold and method for machining same |
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| Country | Link |
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| CN (1) | CN103541801A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105334478A (en) * | 2014-06-03 | 2016-02-17 | 上海联影医疗科技有限公司 | Housing unit and formation method thereof, and magnetic resonance system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1771383A (en) * | 2003-04-02 | 2006-05-10 | 3M创新有限公司 | Exhaust system components with insulating sandwich walls |
| CN101260822A (en) * | 2008-04-17 | 2008-09-10 | 上海伊索热能技术有限公司 | Inorganic combined seal spacer and method for making same |
| CN201121534Y (en) * | 2007-11-07 | 2008-09-24 | 奇瑞汽车股份有限公司 | engine exhaust manifold |
| US20120103457A1 (en) * | 2010-10-20 | 2012-05-03 | Matthias Kroll | Hot gas conducting component |
| CN203098015U (en) * | 2013-01-24 | 2013-07-31 | 浙江摩多巴克斯汽配有限公司 | Improved automobile exhaust manifold |
-
2013
- 2013-11-12 CN CN201310559784.7A patent/CN103541801A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1771383A (en) * | 2003-04-02 | 2006-05-10 | 3M创新有限公司 | Exhaust system components with insulating sandwich walls |
| CN201121534Y (en) * | 2007-11-07 | 2008-09-24 | 奇瑞汽车股份有限公司 | engine exhaust manifold |
| CN101260822A (en) * | 2008-04-17 | 2008-09-10 | 上海伊索热能技术有限公司 | Inorganic combined seal spacer and method for making same |
| US20120103457A1 (en) * | 2010-10-20 | 2012-05-03 | Matthias Kroll | Hot gas conducting component |
| CN203098015U (en) * | 2013-01-24 | 2013-07-31 | 浙江摩多巴克斯汽配有限公司 | Improved automobile exhaust manifold |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105334478A (en) * | 2014-06-03 | 2016-02-17 | 上海联影医疗科技有限公司 | Housing unit and formation method thereof, and magnetic resonance system |
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Application publication date: 20140129 |