CN106481424A - A kind of graphene fiber automobile exhaust pipe and its production technology - Google Patents
A kind of graphene fiber automobile exhaust pipe and its production technology Download PDFInfo
- Publication number
- CN106481424A CN106481424A CN201610989364.6A CN201610989364A CN106481424A CN 106481424 A CN106481424 A CN 106481424A CN 201610989364 A CN201610989364 A CN 201610989364A CN 106481424 A CN106481424 A CN 106481424A
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- Prior art keywords
- winding
- graphene fiber
- core
- thickness
- blast pipe
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/08—Other arrangements or adaptations of exhaust conduits
- F01N13/082—Other arrangements or adaptations of exhaust conduits of tailpipe, e.g. with means for mixing air with exhaust for exhaust cooling, dilution or evacuation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/16—Selection of particular materials
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Exhaust Silencers (AREA)
Abstract
The invention discloses a kind of graphene fiber blast pipe and its production technology, which adopts electrical heating core, after graphene fiber boundling impregnation, is directly wound on electrical heating core under tension force；The heated at constant temperature between 100 120 DEG C is carried out to core at the winding initial stage, until the graphene fiber thickness degree of winding reaches the 1/4 of default winding thickness；Then, gradient increased temperature is carried out to core with the heating rate of 5 10 DEG C/0.1mm winding thickness, until it reaches default winding thickness, winding stop；Subsequently core carries out heated at constant temperature between 140 160 DEG C, until completing the curing molding of graphene fiber blast pipe.The blast pipe that the technique enables to prepare is sufficiently tight, can meet or exceed ferritic stainless steel blast pipe, while processing is quick easily.
Description
Technical field
The present invention relates to technical field of automobile, more particularly to a kind of automobile exhaust pipe and its production technology.
Background technology
Automobile exhaust pipe is automobile, particularly internal-combustion engines vehicle, in one of important accessory.Its effect to automobile fuselage
For, damping noise reduction is played, extends the effect in exhausting silencer system life-span.For general automobile, due to giving up for automobile
When gas leaves engine, pressure is very big, and its noise for producing may allow people feel to go mad, at this moment play a part of main noise reduction
It is exactly the blast pipe of automobile, muffler is installed inside which, the noise of automobile greatly reduces.And its main operational principle is
Airflow diversion is made by multichannel, these shuntings are only shown in that rubs mutually is clashed into so that the flow velocity of air-flow is gradually lowered, so repeatedly
Circulate, the final emission by exhaust pipe for causing waste gas to pass through automobile flows out so that lower noise, make an uproar so as to reach routine vehicle reduction
The effect of sound.
The main material of automobile exhaust pipe is ferritic stainless steel, or containing a small amount of noble metal Ni, Nb, Ti stabilization processes
Ferritic stainless steel.
Due to blast pipe operationally, the temperature on surface is very high, and general producer will not be painted, because exhaust
Pipe can long-time exposed outside, can be by being injured from the various acid-base materials in ground, sewage, along with being in high temperature
Working environment, the length of time one is to be got rusty outside blast pipe unavoidably.
Simultaneously as the fuel of automobile is hydrocarbon, its burning can produce water.With the drop of temperature in blast pipe
Low, which can be condensed into liquid to the cold, and aqueous water can be reserved in default osculum from blast pipe.But due to complicated use ring
Border, can cause draining hole plug, and ponding can only be discharged from the rear of blast pipe, in this process, inevitably caused
Blast pipe internal corrosion, and cause whole blast pipe rust to be worn.Numerous using in report, it is very common that blast pipe rust is worn
One of phenomenon.
After blast pipe gets rusty or becomes rusty and wear, it is impossible to repair, blast pipe is usually entirely changed.This cause the user is great
Spend, while also resulting in waste pollution.
In addition, because ferritic stainless steel blast pipe material is stainless steel, weight is larger.The design side of current main flow
To being while intensity is kept, lightweight is realized, to reach the purpose of automobile loss of weight.
Carbon fiber is firm and lightweight due to which, corrosion-resistant, has had in the blast pipe of high-end vehicles and particular/special requirement
Application.
105804847 A of CN discloses a kind of carbon fiber automobile exhaust pipe, including：Carbon fiber is vented tube body, angling hole
And heat dissipating layer, described carbon fiber exhaust tube body is made up of at least two-layer carbon fiber layer, carbon fiber layer according to 0 °, 45 °,
180 °, 135 ° of order lamination, described adjacent two layers carbon fiber layer be sandwiched between glass fabric.
But existing carbon fiber automobile exhaust pipe, because cost reason, more importantly because the reason for intensity, it is difficult to
Automotive field large-scale promotion.
Content of the invention
It is an object of the invention to proposing a kind of graphene fiber blast pipe and its production technology (preparation method), Neng Gouquan
Face substitutes carbon fiber blast pipe.
For reaching this purpose, the present invention is employed the following technical solutions：
A kind of automobile graphene fiber blast pipe, which is prepared via System of Filament Winding Process by graphene fiber.
Graphene is both most thin material, and most tough material, fracture strength more taller than best steel 200
Times.While it has good elasticity again, stretch range can reach the 20% of own dimensions.It is that current nature is most thin, intensity
Highest material.
Therefore, compared to traditional ferritic stainless steel blast pipe, graphene fiber blast pipe can be made thin thin, intensity
Again remote super ferritic stainless steel blast pipe, therefore its weight can very gently, only conventional ferrite stainless steel blast pipe weight
1/30 or so.
Compared to carbon fiber blast pipe, the graphene fiber blast pipe intensity of the present invention is its 30 times, but weight only has which
1/4 or so, therefore which can substitute carbon fiber blast pipe comprehensively.
The System of Filament Winding Process of the present invention is Wet Winding Process.
The Wet Winding Process of prior art is by after the collection of filaments (yarn formula band) impregnation, is directly wound into core under tension force
On mould, then heat is delivered to product by modes such as radiation, conduction and convection current in baking oven or heating kettle, is solidified
Shaping.
The Wet Winding Process of prior art, is to ensure product quality, will typically adopt multi-shell curing technique.I.e. on core first
Wind certain thickness fiber so as to solidify, then wind second, then make its solidification again, carry out successively in the method straight
Requirement is reached to product thickness.Multi-shell curing is despite various advantages, but its defect is equally obvious, and which is due to multiple solidification, many
Secondary winding, causes production efficiency low, and energy resource consumption increases, and is not suitable for large batch of production.
For overcoming the defect, an object of the present invention is also resided in and provides a kind of production of graphene fiber automobile exhaust pipe
Method.
A kind of production method of automobile graphene fiber blast pipe, including：Which adopts electrical heating core, graphene fiber collection
After bundle impregnation, directly it is wound on electrical heating core under tension force；Between the winding initial stage carries out 100-120 DEG C to core
Heated at constant temperature, until the graphene fiber thickness degree of winding reaches the 1/4 of default winding thickness；Then, with 5-10 DEG C/
The heating rate of 0.1mm winding thickness carries out gradient increased temperature to core, until it reaches default winding thickness, winding stop；Subsequently
Core carries out heated at constant temperature between 140-160 DEG C, until completing the curing molding of graphene fiber blast pipe.
The production technology of the graphene fiber automobile exhaust pipe of the present invention is completed due to winding and being solidificated on all-in-one, because
Heated at constant temperature can be carried out to core at the initial stage of winding for thick wall shell, so that the graphene fiber layer of winding is gradually solidified,
Gradient increased temperature is carried out when certain thickness is wound into, solidify interior winding layer, while transfer heat to outer layer having wound and just
In the composite of winding, gradually realize from inside to outside being solidified while winding, after predetermined winding thickness is reached, winding
Stop, solidification proceeds, until the curing molding of whole housing is completed, so as to being carried out continuously for winding is realized, overcome biography
System Wet Winding Process needs repeatedly solidification, the defect of repeatedly winding.
The production technology of the present invention adopts electrical heating core, and temperature when blast pipe solidifies is gradually to transmit from inside to outside
, blast pipe is also successively to solidify.During solidification, the heat of core and internal layer curing reaction liberated heat pass to outer layer, cause
Outer layer programming rate is accelerated, and blast pipe curing rate radially is also increasingly faster, ultimately results in drum surface layer temperature rapid
Raise, and be rapidly completed solidification process.Therefore the graphene fiber blast pipe of the present invention can solidify rapidly, and production efficiency can
It is greatly improved.
Preferably, when the winding initial stage heated at constant temperature is carried out to core, heating-up temperature is 100-110 DEG C, further preferably
105℃.
When carrying out gradient increased temperature, heating rate is preferred 5-8 DEG C/0.1mm winding thickness, further preferred 5-6 DEG C/0.1mm
Winding thickness.
Preferably, during winding, upper and lower two-layer graphene fiber boundling intersecting angle is 30-90 degree, preferably 45-90 degree.
The present invention passes through the wet-winding craft using electrical heating core, can quickly prepare graphene fiber automobile
Blast pipe.It is sufficiently tight that the technique enables to graphene fiber blast pipe, can meet or exceed ferritic stainless steel,
While processing quickly easily.
Specific embodiment
Technical scheme is further illustrated below by specific embodiment.
Embodiment 1
A kind of production method of automobile graphene fiber blast pipe, including：Which adopts electrical heating core, graphene fiber collection
After bundle impregnation, directly it is wound on electrical heating core under tension force；The constant temperature at 100 DEG C is carried out at the winding initial stage to core
Heating, until the graphene fiber thickness degree of winding reaches the 1/4 of default winding thickness；Then, thickness is wound with 5 DEG C/0.1mm
Heating rate gradient increased temperature is carried out to core, until it reaches default winding thickness, winding stop；Subsequently core is at 140 DEG C
Heated at constant temperature is carried out, until completing the curing molding of graphene fiber blast pipe.
Embodiment 2
A kind of production method of automobile graphene fiber blast pipe, including：Which adopts electrical heating core, graphene fiber collection
After bundle impregnation, directly it is wound on electrical heating core under tension force；The constant temperature at 120 DEG C is carried out at the winding initial stage to core
Heating, until the graphene fiber thickness degree of winding reaches the 1/4 of default winding thickness；Then, thick with 10 DEG C/0.1mm winding
The heating rate of degree carries out gradient increased temperature to core, until it reaches default winding thickness, winding stop；Subsequently core is at 160 DEG C
Under carry out heated at constant temperature, until completing the curing molding of graphene fiber blast pipe.
Embodiment 3
A kind of production method of automobile graphene fiber blast pipe, including：Which adopts electrical heating core, graphene fiber collection
After bundle impregnation, directly it is wound on electrical heating core under tension force；The constant temperature at 110 DEG C is carried out at the winding initial stage to core
Heating, until the graphene fiber thickness degree of winding reaches the 1/4 of default winding thickness；Then, thickness is wound with 6 DEG C/0.1mm
Heating rate gradient increased temperature is carried out to core, until it reaches default winding thickness, winding stop；Subsequently core is at 150 DEG C
Heated at constant temperature is carried out, until completing the curing molding of graphene fiber blast pipe.
The graphene fiber automobile exhaust pipe prepared by embodiment 1-3 detects that its thickness only has conventional iron element
The 1/5 of body stainless steel blast pipe, its impact resistance exceed ferritic stainless steel blast pipe, and do not corrode, therefore can be comprehensive
Substitute carbon fiber blast pipe.
Claims (6)
1. a kind of graphene fiber automobile exhaust pipe, which is prepared via System of Filament Winding Process by graphene fiber.
2. graphene fiber automobile exhaust pipe as claimed in claim 1, the System of Filament Winding Process are Wet Winding Process work
Skill.
3. the production method of the graphene fiber automobile exhaust pipe described in a kind of claim 1 or 2, including：Which adopts electrical heating
Core, after graphene fiber boundling impregnation, is directly wound on electrical heating core under tension force；At the winding initial stage to core
Heated at constant temperature between carrying out 100-120 DEG C, until the graphene fiber thickness degree of winding reaches the 1/4 of default winding thickness；
Then, gradient increased temperature is carried out to core with the heating rate of 5-10 DEG C/0.1mm winding thickness, until it reaches default winding thickness,
Winding stops；Subsequently core carries out heated at constant temperature between 140-160 DEG C, until completing being solidified into for graphene fiber blast pipe
Type.
4. the production method of graphene fiber automobile exhaust pipe according to claim 3, it is characterised in that at the winding initial stage
When carrying out heated at constant temperature to core, heating-up temperature is 100-110 DEG C, further preferred 105 DEG C.
5. the production method of graphene fiber automobile exhaust pipe according to claim 3, it is characterised in that carry out gradient liter
Wen Shi, heating rate is preferred 5-8 DEG C/0.1mm winding thickness, and further preferred 5-6 DEG C/0.1mm winds thickness.
6. the production method of graphene fiber automobile exhaust pipe according to claim 3, it is characterised in that upper and lower during winding
Two-layer graphene fiber boundling intersecting angle is 30-90 degree, preferably 45-90 degree..
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610989364.6A CN106481424A (en) | 2016-11-10 | 2016-11-10 | A kind of graphene fiber automobile exhaust pipe and its production technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610989364.6A CN106481424A (en) | 2016-11-10 | 2016-11-10 | A kind of graphene fiber automobile exhaust pipe and its production technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106481424A true CN106481424A (en) | 2017-03-08 |
Family
ID=58272590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610989364.6A Pending CN106481424A (en) | 2016-11-10 | 2016-11-10 | A kind of graphene fiber automobile exhaust pipe and its production technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106481424A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5052463A (en) * | 1989-03-11 | 1991-10-01 | Messerschmitt-Boelkow-Blohm Gmbh | Method for producing a pipe section with an internal heat insulation lining |
| EP0627263B1 (en) * | 1993-06-02 | 1998-10-07 | YOSHIKAWA, Hideo | Contaminated air purifying apparatus |
| CN205370711U (en) * | 2015-12-05 | 2016-07-06 | 重庆泽嘉机械有限公司 | Exhaust pipe |
| CN105803638A (en) * | 2007-10-26 | 2016-07-27 | 韩楠林 | Fiber product and manufacturing method and application |
| CN105804847A (en) * | 2016-04-20 | 2016-07-27 | 苏州兴新维碳纤维有限公司 | Carbon fiber automobile exhaust pipe and manufacturing technology thereof |
-
2016
- 2016-11-10 CN CN201610989364.6A patent/CN106481424A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5052463A (en) * | 1989-03-11 | 1991-10-01 | Messerschmitt-Boelkow-Blohm Gmbh | Method for producing a pipe section with an internal heat insulation lining |
| EP0627263B1 (en) * | 1993-06-02 | 1998-10-07 | YOSHIKAWA, Hideo | Contaminated air purifying apparatus |
| CN105803638A (en) * | 2007-10-26 | 2016-07-27 | 韩楠林 | Fiber product and manufacturing method and application |
| CN205370711U (en) * | 2015-12-05 | 2016-07-06 | 重庆泽嘉机械有限公司 | Exhaust pipe |
| CN105804847A (en) * | 2016-04-20 | 2016-07-27 | 苏州兴新维碳纤维有限公司 | Carbon fiber automobile exhaust pipe and manufacturing technology thereof |
Non-Patent Citations (1)
| Title |
|---|
| 许家忠: "纤维缠绕复合材料壳体原位成型工艺研究", 《材料科学与工艺》 * |
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Application publication date: 20170308 |
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