CN106224070B - Automotive exhaust flexible pipe - Google Patents
Automotive exhaust flexible pipe Download PDFInfo
- Publication number
- CN106224070B CN106224070B CN201610792455.0A CN201610792455A CN106224070B CN 106224070 B CN106224070 B CN 106224070B CN 201610792455 A CN201610792455 A CN 201610792455A CN 106224070 B CN106224070 B CN 106224070B
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- CN
- China
- Prior art keywords
- pipeline
- temperature
- area
- corrugated tube
- polytene corrugated
- 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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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
-
- 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
Abstract
The present invention provides a kind of automotive exhaust flexible pipe, including the first pipeline, with the polytene corrugated tube of first pipeline connection and the second pipeline being connected to the polytene corrugated tube；The junction of first pipeline and the polytene corrugated tube is equipped with the first sealing shroud；The junction of second pipeline and the polytene corrugated tube is equipped with the second sealing shroud；First pipeline is equal with the diameter of second pipeline；By the way that polytene corrugated tube is arranged between the first pipeline and the second pipeline, the problem of causing the exhaust pipe shock resistance of rigid automobile poor due to the vibration in vehicle traveling process, influence service life is effectively prevented.
Description
Technical field
The present invention relates to auto industry technical field more particularly to a kind of automotive exhaust flexible pipes.
Background technique
Automobile exhaust system is mainly the exhaust gas for discharging engine operation and being discharged, while subtracts the exhaust emission of discharge
Small, noise reduces.Automobile exhaust pipe plays damping noise reduction for the effect of automobile fuselage, extends the exhausting silencer system service life
Effect, the main material of exhaust pipe is stainless steel, usually rigid pipe.However since the vibration in vehicle traveling process may
Cause the exhaust pipe shock resistance of rigid automobile poor, influences service life.Therefore, it is necessary to provide a kind of automotive exhaust flexible
Pipe, to solve the above problems.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of automotive exhaust flexible pipes, to solve the row of existing rigid automobile
The problem of tracheae shock resistance is poor, influences service life.Meanwhile the present invention also provides a kind of effective poly- second of automotive exhaust flexible
Alkene bellows and its processing method.
In order to solve the above technical problems, the technical solution adopted by the present invention is that:
A kind of automotive exhaust flexible pipe, including the first pipeline, with the polytene corrugated tube of first pipeline connection and
The second pipeline being connected to the polytene corrugated tube；The junction of first pipeline and the polytene corrugated tube is equipped with the
One sealing shroud；The junction of second pipeline and the polytene corrugated tube is equipped with the second sealing shroud；First pipeline with
The diameter of second pipeline is equal.
The diameter of the polytene corrugated tube is greater than the diameter of first pipeline and second pipeline.
The effective polytene corrugated tube of automotive exhaust flexible, by polyethylene 45%, bisphenol A polycarbonate 5%, polypropylene 5%,
Expanding material 5%, rigid masterbatch 3%, antioxidant 2%, light stabilizer 5%, graphene 5%, silane coupling agent 5%, 3- acetylaminohydroxyphenylarsonic acid 5- first
Base isoxazole 2%, photomask agent 3% and engineering plastics 15% are made.
The processing method of the effective polytene corrugated tube of automotive exhaust flexible, steps are as follows:
1), the material in addition to engineering plastics is uniformly mixed, is heated to melting；
2), molten material is put into double-screw extruding pelletizing machine, each section of processing temperature of extruding granulator is set separately
Are as follows: the area 1-2 temperature is 265 DEG C, and the area 3-4 temperature is 275 DEG C, and the area 5-6 temperature is 285 DEG C, and the area 7-8 temperature is 305 DEG C, the area 9-10
Temperature is 310 DEG C, and 100 DEG C of die head temperature, twin-screw draw ratio is 32, and screw speed is 310 revs/min, and pelletizing revolving speed is 15
Beat/min；
3) it, discharges, is cooled to room temperature, engineering plastics are then added and are blended to obtain blend composition；
4) it, is granulated, again heating melting, then puts into double-screw extruding pelletizing machine, each section of processing temperature of extruding granulator
Degree is set separately are as follows: the area 1-2 temperature is 265 DEG C, and the area 3-4 temperature is 275 DEG C, and the area 5-6 temperature is 285 DEG C, and the area 7-8 temperature is
305 DEG C, the area 9-10 temperature is 310 DEG C, and 100 DEG C of die head temperature, twin-screw draw ratio is 32, and screw speed is 310 revs/min,
Pelletizing revolving speed is 15 beats/min；
5) it, discharges, is cooled to room temperature, obtains injection molding material particle；
6) injection molding material particle, is processed by bellows by injection molding machine；
7), bellows is placed under 200 DEG C of environment and is heat-treated 3 hours, then natural cooling obtains finished product.
Advantage for present invention is with effect:
1), automotive exhaust flexible pipe of the invention, the polyethylene corrugated including the first pipeline and first pipeline connection
Pipe and the second pipeline being connected to the polytene corrugated tube；The junction of first pipeline and the polytene corrugated tube
Equipped with the first sealing shroud；The junction of second pipeline and the polytene corrugated tube is equipped with the second sealing shroud；Described first
Pipeline is equal with the diameter of second pipeline；By the way that polytene corrugated tube is arranged between the first pipeline and the second pipeline, have
Effect is avoided since the vibration in vehicle traveling process causes the exhaust pipe shock resistance of rigid automobile poor, influences service life
Problem.
2), the effective polytene corrugated tube of automotive exhaust flexible, compared with existing polyethylene corrugated tubing, under normal temperature conditions
Ring stiffness can be improved 20%, and ring stiffness can be improved 30% under the conditions of 45~70 DEG C；Ring flexibility can be improved 15% under normal temperature condition, together
When, significantly extend service life.
3), the processing method of the effective polytene corrugated tube of automotive exhaust flexible, step is easy, low in cost, to equipment
It is of less demanding, high production efficiency.
Detailed description of the invention
The invention will be further described with reference to the accompanying drawing:
Fig. 1 is the schematic diagram under the normal condition of automotive exhaust flexible pipe of the invention；
Fig. 2 is the schematic diagram under the bending state of automotive exhaust flexible pipe of the invention.
In figure: the first pipeline 1, polytene corrugated tube 2, the second pipeline 3, the first sealing shroud 11, the second sealing shroud 31.
Specific embodiment
Embodiment 1
As shown in Figure 1 to Figure 2, the present invention provides a kind of automotive exhaust flexible pipe, including the first pipeline 1 and the first pipeline 1
The polytene corrugated tube 2 of connection and the second pipeline 3 being connected to polytene corrugated tube 2.By in the first pipeline 1 and the second pipe
Polytene corrugated tube 2 is set between road 3, effectively prevents the row for leading to rigid automobile due to the vibration in vehicle traveling process
The problem of tracheae shock resistance is poor, influences service life.
Further, the junction of the first pipeline 1 and polytene corrugated tube 2 is equipped with the first sealing shroud 11；Second pipeline 3 with it is poly-
The junction of ethylene bellows 2 is equipped with the second sealing shroud 31；It is effectively prevent the leakage of vehicle exhaust, enhances the exhaust pipe of automobile
Leakproofness.First pipeline 1 is equal with the diameter of the second pipeline 3.The diameter of polytene corrugated tube 2 is greater than the first pipeline 1 and second
The diameter of pipeline 3.
From the above technical scheme, automotive exhaust flexible pipe of the invention, including the first pipeline 1 and 1 tunnel of the first pipe connect
Logical polytene corrugated tube 2 and the second pipeline 3 being connected to polytene corrugated tube 2；First pipeline 1 and polytene corrugated tube 2
Junction be equipped with the first sealing shroud 11；The junction of second pipeline 3 and polytene corrugated tube 2 is equipped with the second sealing shroud 31；The
One pipeline 1 is equal with the diameter of the second pipeline 3；By the way that polytene corrugated tube 2 is arranged between the first pipeline 1 and the second pipeline 3,
It effectively prevents causing due to the vibration in vehicle traveling process the exhaust pipe shock resistance of rigid automobile poor, influences using the longevity
The problem of life.
Embodiment 2
The effective polytene corrugated tube of automotive exhaust flexible, by polyethylene 45%, bisphenol A polycarbonate 5%, polypropylene 5%,
Expanding material 5%, rigid masterbatch 3%, antioxidant 2%, light stabilizer 5%, graphene 5%, silane coupling agent 5%, 3- acetylaminohydroxyphenylarsonic acid 5- first
Base isoxazole 2%, photomask agent 3% and engineering plastics 15% are made.
Embodiment 3
The processing method of the effective polytene corrugated tube of automotive exhaust flexible, steps are as follows:
1), the material (matching raw material using embodiment 2) in addition to engineering plastics is uniformly mixed, is heated to melting；
2), molten material is put into double-screw extruding pelletizing machine, each section of processing temperature of extruding granulator is set separately
Are as follows: the area 1-2 temperature is 265 DEG C, and the area 3-4 temperature is 275 DEG C, and the area 5-6 temperature is 285 DEG C, and the area 7-8 temperature is 305 DEG C, the area 9-10
Temperature is 310 DEG C, and 100 DEG C of die head temperature, twin-screw draw ratio is 32, and screw speed is 310 revs/min, and pelletizing revolving speed is 15
Beat/min；
3) it, discharges, is cooled to room temperature, engineering plastics are then added and are blended to obtain blend composition；
4) it, is granulated, again heating melting, then puts into double-screw extruding pelletizing machine, each section of processing temperature of extruding granulator
Degree is set separately are as follows: the area 1-2 temperature is 265 DEG C, and the area 3-4 temperature is 275 DEG C, and the area 5-6 temperature is 285 DEG C, and the area 7-8 temperature is
305 DEG C, the area 9-10 temperature is 310 DEG C, and 100 DEG C of die head temperature, twin-screw draw ratio is 32, and screw speed is 310 revs/min,
Pelletizing revolving speed is 15 beats/min；
5) it, discharges, is cooled to room temperature, obtains injection molding material particle；
6) injection molding material particle, is processed by bellows by injection molding machine；
7), bellows is placed under 200 DEG C of environment and is heat-treated 3 hours, then natural cooling obtains finished product.
The present invention is not limited to the above embodiment, and embodiment is only exemplary, it is intended to it is used to explain the present invention, and cannot
It is interpreted as limitation of the present invention.
Claims (1)
1. a kind of automotive exhaust flexible pipe, which is characterized in that is be connected to including the first pipeline (1), with first pipeline (1) is poly-
Ethylene bellows (2) and the second pipeline (3) being connected to the polytene corrugated tube (2)；First pipeline (1) with it is described
The junction of polytene corrugated tube (2) is equipped with the first sealing shroud (11)；Second pipeline (3) and the polytene corrugated tube
(2) junction is equipped with the second sealing shroud (31)；First pipeline (1) is equal with the diameter of second pipeline (3)；
The diameter of the polytene corrugated tube (2) is greater than the diameter of first pipeline (1) and second pipeline (3)；
The polytene corrugated tube is by polyethylene 45%, bisphenol A polycarbonate 5%, polypropylene 5%, expanding material 5%, rigidity
Masterbatch 3%, antioxidant 2%, light stabilizer 5%, graphene 5%, silane coupling agent 5%, 3- acetylaminohydroxyphenylarsonic acid 5- methylisoxazole
2%, photomask agent 3% and engineering plastics 15% are made；
The processing method of the polytene corrugated tube, steps are as follows:
1), the material in addition to engineering plastics is uniformly mixed, is heated to melting；
2), molten material is put into double-screw extruding pelletizing machine, each section of processing temperature of extruding granulator is set separately are as follows: 1-
2 area's temperature are 265 DEG C, and the area 3-4 temperature is 275 DEG C, and the area 5-6 temperature is 285 DEG C, and the area 7-8 temperature is 305 DEG C, the area 9-10 temperature
It is 310 DEG C, 100 DEG C of die head temperature, twin-screw draw ratio is 32, and screw speed is 310 revs/min, and pelletizing revolving speed is 15 beats/min
Clock；
3) it, discharges, is cooled to room temperature, engineering plastics are then added and are blended to obtain blend composition；
4) it, is granulated, again heating melting, then puts into double-screw extruding pelletizing machine, each section of processing temperature of extruding granulator point
It not setting are as follows: the area 1-2 temperature is 265 DEG C, and the area 3-4 temperature is 275 DEG C, and the area 5-6 temperature is 285 DEG C, and the area 7-8 temperature is 305 DEG C,
The area 9-10 temperature is 310 DEG C, and 100 DEG C of die head temperature, twin-screw draw ratio is 32, and screw speed is 310 revs/min, and pelletizing turns
Speed is 15 beats/min；
5) it, discharges, is cooled to room temperature, obtains injection molding material particle；
6) injection molding material particle, is processed by bellows by injection molding machine；
7), bellows is placed under 200 DEG C of environment and is heat-treated 3 hours, then natural cooling obtains finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610792455.0A CN106224070B (en) | 2016-08-31 | 2016-08-31 | Automotive exhaust flexible pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610792455.0A CN106224070B (en) | 2016-08-31 | 2016-08-31 | Automotive exhaust flexible pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106224070A CN106224070A (en) | 2016-12-14 |
| CN106224070B true CN106224070B (en) | 2019-03-22 |
Family
ID=58074469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610792455.0A Active CN106224070B (en) | 2016-08-31 | 2016-08-31 | Automotive exhaust flexible pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106224070B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202673426U (en) * | 2012-06-19 | 2013-01-16 | 重庆科克发动机技术有限公司 | Novel exhausting pipeline for motor |
| CN202866957U (en) * | 2012-11-19 | 2013-04-10 | 浙江乐鼎波纹管有限公司 | Exhaust bellows |
| CN203559969U (en) * | 2013-09-29 | 2014-04-23 | 浙江乐鼎波纹管有限公司 | Flexible corrugated pipe device special for car exhaust system |
| CN103937075A (en) * | 2014-05-06 | 2014-07-23 | 康泰塑胶科技集团有限公司 | Polyethylene corrugated pipe and preparation method thereof |
| CN205330783U (en) * | 2015-12-17 | 2016-06-22 | 北京汽车研究总院有限公司 | Car exhaust system connecting line structure and car |
-
2016
- 2016-08-31 CN CN201610792455.0A patent/CN106224070B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202673426U (en) * | 2012-06-19 | 2013-01-16 | 重庆科克发动机技术有限公司 | Novel exhausting pipeline for motor |
| CN202866957U (en) * | 2012-11-19 | 2013-04-10 | 浙江乐鼎波纹管有限公司 | Exhaust bellows |
| CN203559969U (en) * | 2013-09-29 | 2014-04-23 | 浙江乐鼎波纹管有限公司 | Flexible corrugated pipe device special for car exhaust system |
| CN103937075A (en) * | 2014-05-06 | 2014-07-23 | 康泰塑胶科技集团有限公司 | Polyethylene corrugated pipe and preparation method thereof |
| CN205330783U (en) * | 2015-12-17 | 2016-06-22 | 北京汽车研究总院有限公司 | Car exhaust system connecting line structure and car |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106224070A (en) | 2016-12-14 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190715 Address after: Room 808, 275-8 Guoding East Road, Yangpu District, Shanghai 200082-01 Patentee after: Shanghai Punbao Group Co., Ltd. Address before: 241000 Anhui city of Wuhu province Jiujiang Development Zone prosperous road No. 59 Patentee before: Wuhu Hengyao Automobile Auto Spare Parts Co., Ltd. |
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| TR01 | Transfer of patent right |