CN107415279A - A kind of forming method of contact net support meanss - Google Patents
A kind of forming method of contact net support meanss Download PDFInfo
- Publication number
- CN107415279A CN107415279A CN201710642141.7A CN201710642141A CN107415279A CN 107415279 A CN107415279 A CN 107415279A CN 201710642141 A CN201710642141 A CN 201710642141A CN 107415279 A CN107415279 A CN 107415279A
- Authority
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- China
- Prior art keywords
- core pipe
- prepreg
- pipe
- contact net
- hot
- Prior art date
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Classifications
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- 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
- B29C70/34—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 and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
-
- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/76—Cores
-
- 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
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/34—Electrical apparatus, e.g. sparking plugs or parts thereof
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
This application discloses a kind of forming method of contact net support meanss, comprise the following steps：1) core pipe is processed, and core pipe is processed into Horizontal Cantilever (1), inclined cantilever (2), arched arm (3) and linking arm (4) respectively, is bonded；2) core pipe winding prepreg；3) mould matched moulds, curing molding.The forming method of the contact net support meanss of the present invention, simply, contact net support meanss are efficiently prepared, simultaneously, prepared contact net support meanss are in light weight, intensity is high, have excellent insulating properties, adapt to various weather conditions, contact net reliability can be improved, reduces installation and maintenance work difficulty.
Description
Technical field
The application is related to electrified track technical field of transportation, more particularly to a kind of shaping side of contact net support meanss
Method.
Background technology
Contact net is the transmission line of electricity powered to electric locomotive set up along rail line overhead, in outdoor complicated ring
Operated under border, its stability and the operation security of security direct relation track traffic.Contact net support meanss are arranged on support
On post, to support overhead contact line, and play a part of transfer charge.It is enough to require that suspension arrangement possesses in actual use
Mechanical strength, structure is as far as possible simple, light and handy, and easy installation and maintenance is changed.
And existing contact net support meanss are mainly steel cantilever support device and support device for aluminium alloy cantilever.Both
Support meanss have more than ten or even tens parts to be formed by connecting by forms such as be hinged and bolt connections, install maintenance work
Amount is big and construction quality is difficult to ensure that, while insulator price is also higher.
The content of the invention
In order to solve the above technical problems, the object of the invention is a kind of forming method of contact net support meanss of offer, simple,
Contact net support meanss efficiently are prepared, meanwhile, prepared contact net support meanss are in light weight, intensity is high, it is excellent exhausted to have
Edge performance, various weather conditions are adapted to, contact net reliability can be improved, reduce installation and maintenance work difficulty.
Technical scheme provided by the invention is as follows：
A kind of forming method of contact net support meanss, comprises the following steps：
1) core pipe is processed, and core pipe is processed into Horizontal Cantilever, inclined cantilever, arched arm and linking arm respectively, is bonded；
2) core pipe winding prepreg；
3) mould matched moulds, curing molding.
Preferably, the core pipe is glued by any one or more in insulating layer and thermoplastic tubing, resin compounded insulated pipes used
Connect preparation.
Preferably, the core pipe is by polyvinyl chloride pipe, polyethylene pipe, crosslinked polyethylene pipe, PA tube, acrylic nitrile-butadiene
It is any in styrene polymerization pipe, Polybutylene Pipe, epoxy resin compound inslation tubing, phenolic resin compound inslation tubing
It is prepared by one or more bonding.
Preferably, the prepreg is any one in glass prepreg, prepreg tape, glass fibre yarn.
Preferably, the prepreg is with 30-45 ° of winding core pipe, and core pipe crossover sites prepreg is with 90 ° of winding reinforcings.
Preferably, the 15-60mm that staggers between every layer of glass fibre is wound, and the glass fibre thickness wound on core is 5-
15mm。
Preferably, curing molding can use solidification of hot-press tank method, compression molding method, internal pressure outer thermal curing method, interior hot pressing
Any one in solidification method.
Preferably, when core pipe uses hollow tube, using any one in thermal curing method, interior hot-press solidifying method outside internal pressure
Kind；When core pipe uses solid tubing, using any one in solidification of hot-press tank method, molded curing method.
Preferably, in the outer thermal curing method of the internal pressure, 110-150 DEG C of reaction temperature, reaction time 4-10h, reaction pressure
0.3-3MPa；And/or
In the interior hot-press solidifying method, 110-150 DEG C of vapor (steam) temperature, reaction time 4-10h, reaction pressure 0.3-3MPa.
Preferably, in the solidification of hot-press tank method, 110-150 DEG C of reaction temperature, reaction time 4-10h, hot pressing pressure tank
0.1-3MPa；And/or
In the molded curing method, 110-150 DEG C of reaction temperature, reaction time 4-10h, reaction pressure 10-20MPa.
Prepreg be with resin matrix under conditions of strict control impregnating continuous fibres or fabric, be made resin matrix with
The composition of reinforcement, belong to the intermediate materials for preparing composite.Prepreg include reinforcing material (glass fibre, aramid fiber it is fine
Dimension etc.) and matrix material (epoxy resin, phenolic resin, bismaleimide resin, cyanate ester resin etc.).Generally a variety of matrix materials are mixed
Close and use, to meet requirement of the product to performances such as processing performance, damp and hot mechanical property and fracture toughnesses, as phenolic resin can carry
The reactivity and heat resistance of high resin system, bisphenol A type resin can adjust the viscosity of resin system, with the use of effect more
It is good.The present invention obtains the contact net support meanss of excellent performance by winding prepreg and then curing molding in core pipe.
Insulating properties thermoplastic pipe can include polyvinyl chloride pipe (PVC), polyethylene pipe (PE), crosslinked polyethylene pipe, poly-
Any of acrylic tubing (PP), acrylonitrile-butadiene-styrene (ABS) polymerization pipe (ABS), Polybutylene Pipe (PB)；Resin compounded is exhausted
Edge tubing is any of epoxy resin compound inslation tubing or phenolic resin compound inslation tubing.In the present invention, Ke Yixuan
By the use of polyvinyl chloride pipe (PVC) as core pipe, it is easy to connect by hot melt, and single unit system quality increase is smaller.
Prepreg can use solwution method or hot melt to prepare.Solwution method is that resin is dissolved in lower boiling solvent, so
Fibre bundle or fabric are pressed into certain speed impregnating resin solution afterwards, and resin content is controlled with scraper or roller, is then dried
Volatilize low boiling point solvent, and winding prepares prepreg.Solvent method prepares prepreg equipment and is simple and convenient to operate, but matrix material with
The more difficult control of ratio of reinforcing material.Hot melt is to melt resin at high temperature, then impregnates strengthening material by different modes
The method that material prepares prepreg.Hot melt is high to prepreg matrix material content control accuracy, and volatile ingredient is few, the preimpregnation of preparation
Expect excellent performance.In the present invention, warm type (130 DEG C) epoxy-E glasses prepreg or prepreg tape in can selecting.
The core pipe crossover sites be core pipe crossover sites be the junction of Horizontal Cantilever 1 and linking arm 4, Horizontal Cantilever 1 with tiltedly
The junction of bracket 2, the junction of arched arm 3 and Horizontal Cantilever 1, arched arm 3 and inclined cantilever 2, the junction of linking arm 4, oblique wrist
Arm 2 with it is any one or more in the junction of linking arm 4.
The selection of prepreg winding angle, angle is bigger, is more easy to wind, and length direction mechanical property is poor, diameter
Direction mechanics better performances.In the present invention, prepreg is wound using unspecified angle in 30-45 °, is calculated by analysis, final system
The performance of standby contact net support meanss can reach requirement.
Crossover sites, including the junction of Horizontal Cantilever and linking arm, the junction of Horizontal Cantilever and inclined cantilever, arched arm are with putting down
Junction, arched arm and the inclined cantilever of bracket, the junction of linking arm, inclined cantilever and linking arm junction in any one
Or it is multinomial, with prepreg (such as prepreg tape or prepegged strands) with 90 ° of winding reinforcings, strengthen the performance of crossover sites.
When core pipe selects hollow tube, such as polyvinyl chloride pipe, polyethylene pipe, crosslinked polyethylene pipe, PA tube, propylene
When nitrile-butadiene-styrene polymerization pipe, Polybutylene Pipe, internal pressure external heating can be used to solidify, i.e., be passed through to support meanss inside
Normal temperature air with pressure, then outer mold heating are solidified.The outer thermal curing method of internal pressure can use composite material mould or
Metal die is heated.Interior hot-press solidifying method can also be used, i.e., is passed through the steam with pressure to support meanss inside, passes through
The method that steam realizes pressurized, heated.Interior hot-press solidifying method can use composite material mould or metal die.
, can be with during such as epoxy resin compound inslation tubing, phenolic resin compound inslation tubing when core pipe uses solid tubing
Using solidification of hot-press tank method, pressure is produced using the high temperature compressed gas inside autoclave, the core pipe after winding prepreg is entered
Row heating, pressurization, curing molding.Molded curing method can be also used, the core pipe after winding prepreg is put under solidification temperature
In mould, curing molding.Using solidification of hot-press tank method, mould can select metal die or composite material mould, and use mould
Cured method should select metal die.
The method provided by the present invention prepare contact net support meanss, meet professional standard physical property, mechanical property,
Requirement in terms of electric property and insulation, can bear enough levels, vertical load, cantilever structure do not occur plastic deformation or
Sliding.
The forming method of contact net supporting construction provided by the invention, it is simple to operation, the support meanss performance of preparation is good,
Intensity is high, in light weight.By using the composite of height insulation, the security of contact net operation is improved, reduces contact net
The difficulty and workload of installation and the later maintenance of support meanss.
Brief description of the drawings
, below will be to embodiment or existing in order to illustrate more clearly of the embodiment of the present application or technical scheme of the prior art
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments described in application, for those of ordinary skill in the art, on the premise of not paying creative work,
Other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram of the contact net support meanss prepared in the embodiment of the present invention；
Fig. 2 is the structural representation of the contact net support meanss prepared in the embodiment of the present invention；
Fig. 3 is that the contact net support meanss prepreg prepared in the embodiment of the present invention winds schematic diagram (45 °)；
Fig. 4 is that the contact net support meanss prepreg prepared in the embodiment of the present invention winds schematic diagram (30 °)；
Fig. 5 is the contact net support meanss prepreg reinforcement area schematic prepared in the embodiment of the present invention；
Reference：1- Horizontal Cantilevers；2- inclined cantilevers；3- arched arms；4- linking arms；The glass fiber-reinforced regions of c-；
Embodiment
In order that those skilled in the art more fully understand the technical scheme in the application, it is real below in conjunction with the application
The accompanying drawing in example is applied, the technical scheme in the embodiment of the present application is clearly and completely described, it is clear that described implementation
Example only some embodiments of the present application, rather than whole embodiments.It is common based on the embodiment in the application, this area
The every other embodiment that technical staff is obtained under the premise of creative work is not made, it should all belong to the application protection
Scope.
Please as shown in Figures 1 to 5, a kind of forming method of contact net support meanss of offer of the embodiment of the present invention, including with
Lower step：
1) core pipe is processed, and core pipe is processed into Horizontal Cantilever 1, inclined cantilever 2, arched arm 3 and linking arm 4 respectively, is bonded；
2) core pipe winding prepreg；
3) mould matched moulds, curing molding.
Prepreg be with resin matrix under conditions of strict control impregnating continuous fibres or fabric, be made resin matrix with
The composition of reinforcement, belong to the intermediate materials for preparing composite.Prepreg includes reinforcing material, and (glass fibre, aramid fiber are fine
Dimension etc.) and matrix material (epoxy resin, phenolic resin, cyanic acid ammonia resin etc.).Generally a variety of matrix materials are used in mixed way, with
Meet requirement of the product to performances such as processing performance, damp and hot mechanical property and fracture toughnesses, as phenolic resin can improve resinite
The reactivity and heat resistance of system, bisphenol A type resin can adjust the viscosity of resin system, more preferable with the use of effect.The present invention
By winding prepreg and then curing molding in core pipe, the contact net support meanss of excellent performance are obtained.
Preferably, the core pipe is glued by any one or more in insulating layer and thermoplastic tubing, resin compounded insulated pipes used
Connect preparation.
Preferably, the core pipe is by polyvinyl chloride pipe, polyethylene pipe, crosslinked polyethylene pipe, PA tube, acrylic nitrile-butadiene
It is any in styrene polymerization pipe, Polybutylene Pipe, epoxy resin compound inslation tubing, phenolic resin compound inslation tubing
It is prepared by one or more bonding.
Insulating properties thermoplastic pipe can include polyvinyl chloride pipe (PVC), polyethylene pipe (PE), crosslinked polyethylene pipe, poly-
Any of acrylic tubing (PP), acrylonitrile-butadiene-styrene (ABS) polymerization pipe (ABS), Polybutylene Pipe (PB)；Resin compounded is exhausted
Edge tubing is any of epoxy resin compound inslation tubing or phenolic resin compound inslation tubing.In the present invention, Ke Yixuan
By the use of polyvinyl chloride pipe (PVC) as core pipe, it is easy to connect by hot melt, and single unit system quality increase is smaller.
Preferably, the prepreg is any one in glass prepreg, prepreg tape, glass fibre yarn.
Prepreg can use solwution method or hot melt to prepare.Solwution method is that resin is dissolved in lower boiling solvent, so
Fibre bundle or fabric are pressed into certain speed impregnating resin solution afterwards, and resin content is controlled with scraper or roller, is then dried
Volatilize low boiling point solvent, and winding prepares prepreg.Solvent method prepares prepreg equipment and is simple and convenient to operate, but matrix material with
The more difficult control of ratio of reinforcing material.Hot melt is to melt resin at high temperature, then impregnates strengthening material by different modes
The method that material prepares prepreg.Hot melt is high to prepreg matrix material content control accuracy, and volatile ingredient is few, the preimpregnation of preparation
Expect excellent performance.In the present invention, warm type (130 DEG C) epoxy-E glasses prepreg or prepreg tape in can selecting.
Preferably, the prepreg is with 30-45 ° of winding core pipe, and core pipe crossover sites prepreg is with 90 ° of winding reinforcings.
Preferably, the 15-60mm that staggers between every layer of glass fibre is wound, and the glass fibre thickness wound on core is 5-
15mm。
The core pipe crossover sites be core pipe crossover sites be the junction of Horizontal Cantilever 1 and linking arm 4, Horizontal Cantilever 1 with tiltedly
The junction of bracket 2, the junction of arched arm 3 and Horizontal Cantilever 1, arched arm 3 and inclined cantilever 2, the junction of linking arm 4, oblique wrist
Arm 2 with it is any one or more in the junction of linking arm 4.
The selection of prepreg winding angle, angle is bigger, is more easy to wind, and length direction mechanical property is poor, diameter
Direction mechanics better performances.In the present invention, prepreg is wound using unspecified angle in 30-45 °, is calculated by analysis, final system
The performance of standby contact net support meanss can reach requirement.
Crossover sites, including Horizontal Cantilever 1 and the junction of linking arm 4, the junction of Horizontal Cantilever 1 and inclined cantilever 2, arched arm
3 with the junction of Horizontal Cantilever 1, arched arm 3 and inclined cantilever 2, the junction of linking arm 4, inclined cantilever 2 and linking arm 4 junction
In it is any one or more, with prepreg (such as prepreg tape or prepegged strands) with 90 ° of winding reinforcings, strengthen the property of crossover sites
Energy.
Preferably, curing molding can use solidification of hot-press tank method, compression molding method, internal pressure outer thermal curing method, interior hot pressing
Any one in solidification method.
Preferably, when core pipe uses hollow tube, using any one in thermal curing method, interior hot-press solidifying method outside internal pressure
Kind；When core pipe uses solid tubing, using any one in solidification of hot-press tank method, molded curing method.
When core pipe selects hollow tube, such as polyvinyl chloride pipe, polyethylene pipe, crosslinked polyethylene pipe, PA tube, propylene
When nitrile-butadiene-styrene polymerization pipe, Polybutylene Pipe, internal pressure external heating can be used to solidify, i.e., be passed through to support meanss inside
Normal temperature air with pressure, then outer mold heating are solidified.The outer thermal curing method of internal pressure can use composite material mould or
Metal die is heated.Interior hot-press solidifying method can also be used, i.e., is passed through the steam with pressure to support meanss inside, passes through
The method that steam realizes pressurized, heated.Interior hot-press solidifying method can use composite material mould or metal die.
Preferably, in the outer thermal curing method of the internal pressure, 110-150 DEG C of reaction temperature, reaction time 4-10h, reaction pressure
0.3-3MPa；As reacted 5-6h, reaction pressure 0.3-1MPa at 120-130 DEG C；And/or
In the interior hot-press solidifying method, 110-150 DEG C of vapor (steam) temperature, reaction time 4-10h, reaction pressure 0.3-3MPa；
As reacted 5-6h, steam pressure 0.3-1Mpa at 120-130 DEG C.
, can be with during such as epoxy resin compound inslation tubing, phenolic resin compound inslation tubing when core pipe uses solid tubing
Using solidification of hot-press tank method, pressure is produced using the high temperature compressed gas inside autoclave, the core pipe after winding prepreg is entered
Row heating, pressurization, curing molding.Molded curing method can be also used, the core pipe after winding prepreg is put under solidification temperature
In mould, curing molding.Using solidification of hot-press tank method, mould can select metal die or composite material mould, and use mould
Cured method should select metal die.
Preferably, in the solidification of hot-press tank method, 110-150 DEG C of reaction temperature, reaction time 4-10h, hot pressing pressure tank
0.1-3MPa；As reacted 5-6h, hot pressing pressure tank 0.3-0.6MPa at 120-130 DEG C；And/or
In the molded curing method, 110-150 DEG C of reaction temperature, reaction time 4-10h, reaction pressure 10-20MPa；Such as
5-6h, reaction pressure 10-20MPa are reacted at 120-130 DEG C.
The method provided by the present invention prepare contact net support meanss, meet professional standard physical property, mechanical property,
Requirement in terms of electric property and insulation, can bear enough levels, vertical load, cantilever structure do not occur plastic deformation or
Sliding.
The forming method of contact net supporting construction provided by the invention, it is simple to operation, the support meanss performance of preparation is good,
Intensity is high, in light weight.By using the composite of height insulation, the security of contact net operation is improved, reduces contact net
The difficulty and workload of installation and the later maintenance of support meanss.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (10)
1. a kind of forming method of contact net support meanss, it is characterised in that comprise the following steps：
1) core pipe is processed, and core pipe is processed into Horizontal Cantilever (1), inclined cantilever (2), arched arm (3) and linking arm (4) respectively, is bonded；
2) core pipe winding prepreg；
3) mould matched moulds, curing molding.
2. according to the method for claim 1, it is characterised in that the core pipe is exhausted by insulating layer and thermoplastic tubing, resin compounded
It is prepared by any one or more bonding in edge tubing.
3. according to the method for claim 2, it is characterised in that the core pipe is poly- by polyvinyl chloride pipe, polyethylene pipe, crosslinking
Ethylene tube, PA tube, acrylonitrile-butadiene-styrene (ABS) polymerization pipe, Polybutylene Pipe, epoxy resin compound inslation tubing, phenolic aldehyde
It is prepared by any one or more bonding in resin compounded insulated pipes used.
4. according to the method for claim 1, it is characterised in that the prepreg is glass prepreg, prepreg tape, glass fibre yarn
In any one.
5. according to the method for claim 1, it is characterised in that the prepreg is intersected with 30-45 ° of winding core pipe, core pipe
Position prepreg is with 90 ° of winding reinforcings.
6. according to the method for claim 5, it is characterised in that the 15-60mm that staggers between every layer of glass fibre is wound, core
The glass fibre thickness of upper winding is 5-15mm.
7. according to the method for claim 1, it is characterised in that curing molding can use solidification of hot-press tank method, be molded into
Any one in type method, internal pressure outer thermal curing method, interior hot-press solidifying method.
8. according to the method for claim 7, it is characterised in that when core pipe uses hollow tube, using thermosetting outside internal pressure
Any one in change method, interior hot-press solidifying method；When core pipe uses solid tubing, using solidification of hot-press tank method, molded curing
Any one in method.
9. according to the method for claim 7, it is characterised in that in the outer thermal curing method of the internal pressure, reaction temperature 110-150
DEG C, reaction time 4-10h, reaction pressure 0.3-3MPa；And/or
In the interior hot-press solidifying method, 110-150 DEG C of vapor (steam) temperature, reaction time 4-10h, reaction pressure 0.3-3MPa.
10. according to the method for claim 7, it is characterised in that in the solidification of hot-press tank method, reaction temperature 110-150
DEG C, reaction time 4-10h, hot pressing pressure tank 0.1-3MPa；And/or
In the molded curing method, 110-150 DEG C of reaction temperature, reaction time 4-10h, reaction pressure 10-20MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710642141.7A CN107415279B (en) | 2017-07-31 | 2017-07-31 | A kind of forming method of contact net support device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710642141.7A CN107415279B (en) | 2017-07-31 | 2017-07-31 | A kind of forming method of contact net support device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107415279A true CN107415279A (en) | 2017-12-01 |
| CN107415279B CN107415279B (en) | 2019-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710642141.7A Active CN107415279B (en) | 2017-07-31 | 2017-07-31 | A kind of forming method of contact net support device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108674257A (en) * | 2018-05-22 | 2018-10-19 | 中铁电气化局集团有限公司 | A kind of contact net inclined cantilever processing method |
| CN116730636A (en) * | 2023-05-06 | 2023-09-12 | 温州益坤电气股份有限公司 | Wrist arm stay tube |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102642316A (en) * | 2012-04-24 | 2012-08-22 | 东华大学 | Continuous preparation method of composite material tube |
-
2017
- 2017-07-31 CN CN201710642141.7A patent/CN107415279B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102642316A (en) * | 2012-04-24 | 2012-08-22 | 东华大学 | Continuous preparation method of composite material tube |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108674257A (en) * | 2018-05-22 | 2018-10-19 | 中铁电气化局集团有限公司 | A kind of contact net inclined cantilever processing method |
| CN108674257B (en) * | 2018-05-22 | 2019-05-17 | 中铁电气化局集团有限公司 | A kind of contact net inclined cantilever processing method |
| CN116730636A (en) * | 2023-05-06 | 2023-09-12 | 温州益坤电气股份有限公司 | Wrist arm stay tube |
| CN116730636B (en) * | 2023-05-06 | 2023-12-26 | 温州益坤电气股份有限公司 | Wrist arm stay tube |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107415279B (en) | 2019-08-13 |
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