CN106229170A - A kind of insulated tension pole and preparation method thereof - Google Patents
A kind of insulated tension pole and preparation method thereof Download PDFInfo
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- CN106229170A CN106229170A CN201610620136.1A CN201610620136A CN106229170A CN 106229170 A CN106229170 A CN 106229170A CN 201610620136 A CN201610620136 A CN 201610620136A CN 106229170 A CN106229170 A CN 106229170A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
-
- 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
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
- B29C70/46—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
- B29C70/48—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs and impregnating the reinforcements in the closed mould, e.g. resin transfer moulding [RTM], e.g. by vacuum
-
- 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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/24—Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
- C08L63/10—Epoxy resins modified by unsaturated compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
- C08L75/08—Polyurethanes from polyethers
-
- 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
- B29L2031/06—Rods, e.g. connecting rods, rails, stakes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2363/00—Characterised by the use of epoxy resins; Derivatives of epoxy resins
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2363/00—Characterised by the use of epoxy resins; Derivatives of epoxy resins
- C08J2363/10—Epoxy resins modified by unsaturated compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2375/04—Polyurethanes
- C08J2375/08—Polyurethanes from polyethers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2467/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2477/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
- C08J2477/10—Polyamides derived from aromatically bound amino and carboxyl groups of amino carboxylic acids or of polyamines and polycarboxylic acids
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C08L2205/00—Polymer mixtures characterised by other features
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
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- Composite Materials (AREA)
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- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
The invention provides a kind of insulated tension pole and preparation method thereof, this insulated tension pole is composited by resin system and fabric, and resin is epoxy-resin systems, polyurethane resin systems or vinylite system；Fabric is a kind of or blended fabric of two of which fabric selected in aramid fabric, glass fiber cloth, polyimide fiber fabric, basalt fibre fabrics, dacron fabric.By to fabric winding composition, the design of fabric braiding composition and the vacuum impregnation technique using high-temperature pressurizing, in regulation dipping process, the viscosity of resin system is mated with the optimal of system vacuum, guaranteeing have good interface cohesion between resin and fabric, the insulated tension pole obtained has superior electrical insulating properties and mechanical mechanics property.
Description
Technical field
The present invention relates to a kind of insulated tension pole, be specifically related to a kind of insulated tension pole and preparation method thereof.
Background technology
Referred to as the Cubicle Gas-Insulated Switchgear (Gas Insulated Switchgear) of GIS is transformer station
In primary equipment in addition to transformator, it include chopper, disconnecting switch, earthed switch, voltage transformer, current transformer,
Spark gap, bus, cable termination, inlet-outlet sleeve etc..GIS full name gas insulated combined electric appliance equipment (Gas Insulated
Switchgear), the switch being often title all combined by bus, chopper, CT, PT, disconnecting switch, spark gap by it
Stand, be also high voltage distribution installation.The pattern of high voltage distribution installation has three kinds: the first is air-insulated ordinary distribution device,
It is called for short AIS.Its bus is exposed directly and air contact, and chopper can be by porcelain knob or pot type.The second is hybrid distribution dress
Put, be called for short H-GIS.Bus uses open type, and other is sulfur hexafluoride gas-insulating switching device.The third is lithium
The gas-insulating and fully-enclosed power distribution equipment of sulfur.Its English full name GAS INSTULATED SWITCHGEAR, is called for short GIS.GIS's is excellent
Point is that floor space is little, and reliability is high, and high safety, maintenance workload is the least, and the maintenance intervals of its critical piece is not less than
20 years.
Insulated tension pole is important insulation building block and the drive disk assembly of GIS device, in its mechanically and electrically insulating properties
Aspect can be required to that there is higher reliability.In recent years, GIS handing-over and run in, insulated tension pole punctures, flashover situation time
There is generation, bring bigger challenge to the safe operation of electric power transmission.
Insulated tension pole is the high and low pressure insulation operating being applied in the high-voltage switch gear of 110kV and above
Insulating part, makees dielectric with SF6 gas, and its construction features is thin and grows, and cut-offs frequent operation, does not the most require nothing more than insulated tension pole
There is extraordinary electrical insulation properties and mechanical mechanics property, also require that product weight is light, creep is little, anti-fatigue performance is good.
CN 104290335 A Chinese patent discloses the production technology of a kind of insulated tension pole, which discloses Vaccum Permeating
Stain method, its complicated process of preparation, repeatedly core rod need to be carried out heat treated, and fabric is single, the electricity of the product prepared
Gas performance and mechanical performance are not ideal enough.So needing the needs providing a kind of technical scheme to meet prior art.
Summary of the invention
It is an object of the invention to provide a kind of insulated tension pole and preparation method thereof, by fabric winding is formed,
Fabric composition design and use high-temperature pressurizing vacuum impregnation technique, regulation dipping process in resin system viscosity with
The optimal coupling of system vacuum, it is ensured that there is between resin and fabric good interface cohesion, obtain that there is good electric
Gas insulating properties and the insulated tension pole of mechanical mechanics property.
In order to achieve the above object, the invention provides employing following technical proposals:
A kind of insulated tension pole is composited by resin system and fabric, and resin is epoxy-resin systems, polyurethane tree
Resin system or vinylite system；Fabric be aramid fabric, glass fiber cloth, polyimide fiber fabric,
The blended fabric of one or both fabrics selected in basalt fibre fabrics and dacron fabric.
First preferred version of a kind of insulated tension pole, epoxy-resin systems includes epoxy resin, firming agent and accelerator；Poly-
Urethane resin system includes methyl diphenylene diisocyanate, polyether polyol, catalyst and chain extender.
Second preferred version of a kind of insulated tension pole, firming agent is methyl tetrahydro phthalic anhydride；Accelerator is modified imidazole or changes
Property time sulphamide；Catalyst is organic tin catalyst；Chain extender is Isosorbide-5-Nitrae butanediol or ethylenediamine.
3rd preferred version of a kind of insulated tension pole, the quality proportioning of resin system and fabric is 1.75～2:3.
4th preferred version of a kind of insulated tension pole, under room temperature, the viscosity of described resin is 200～1500mPa.s.
5th preferred version of a kind of insulated tension pole, a diameter of 1000d of fabric monofilament specification, surface density is
200g/m2。
6th preferred version of a kind of insulated tension pole, fabric Cement Composite Treated by Plasma or silane coupler change
Property.
7th preferred version of a kind of insulated tension pole, silane coupler is vinyl silanes, amino silane or metering system
Acyloxy silane.
The preparation method of a kind of insulated tension pole comprises the steps:
1) dehumidifying of fabric: the fabric on mandrel will be wound in, in 100 DEG C and vacuum-0.08～-
Dehumidifying 6～8h under 0.09MPa；
2) batch mixing is prepared: mix and blend resin system under 60～70 DEG C and 400～500rpm/min rotating speeds ,-0.08
～vacuum defoamation 1～2h under-0.09MPa, obtain resin batch mixing；
3) vacuum impregnation of fabric: under 60～80 DEG C and vacuum-0.08～-0.09MPa, by step 2) prepare
Resin batch mixing dipping fabric 0.5～1h, dwell pressure 0.4～0.6Mpa after dipping, the time 1～2h；
4) solidification: then at 120 DEG C of solidifications 10～12h after solidifying 4～6h at 80 DEG C；
5) demoulding: the demoulding obtains insulated tension pole blank；
6) gold utensil assembling: fitting obtains insulated tension pole goods on insulated tension pole part blank.
First preferred version of the preparation method of a kind of insulated tension pole, fabric is wound into sandwich structure, ectonexine
For dacron fabric, intermediate layer is blended fabric；Described ectonexine thickness is respectively 1～3mm, dacron fabric and shuffling
The mass ratio of fabric is 1:10～1:8.
Compared with immediate prior art, the technical scheme that the present invention provides has a following excellent effect:
1) preparation of a kind of based on vacuum impregnation moulding process the insulated tension pole that the present invention provides, it is mainly used in
In GIS disconnecting switch and chopper, in terms of mechanically and electrically insulating properties, it is required to that there is higher reliability.Vacuum impregnation
Moulding process is by the design forming fabric, the control of Vacuum Soak Technological Process, it is ensured that the dipping of high vacuum system
The yield rate that product holding is higher can be made, reduce the generation of product appearance defect.
2) dipping that the present invention is changed between conventional resins and fabric by the selection of resin and fabric is asked
Topic, adjusts ectonexine composition and the composition in intermediate layer of fabric, will well improve the resin leaching for fabric
Stain problem.Dacron fabric is coated on the surfaces externally and internally of mandrel, and intermediate layer uses the shuffling mode of fabric, this compound
Material tubulose sandwich structure can make resin system effectively impregnate fabric, effective solve fabric and resin it
Between flooding problems, it is ensured that the ratio defective product of product so that it is have excellence electrical insulation properties and mechanical mechanics property.
3) present invention uses vacuum impregnation moulding process, uses high temperature dipping, it is ensured that resin is protected during vacuum impregnation
Hold in relatively low viscosity, be beneficial to its effective dipping to fabric system so that it is have good between resin and fabric
Good interface cohesion.
Detailed description of the invention
It is described in further detail below in conjunction with specific embodiment, technical scheme is carried out clearly and completely
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based on the present invention
In embodiment, the every other enforcement that those of ordinary skill in the art are obtained under not making creative work premise
Example, broadly falls into the scope of protection of the invention.
Embodiment 1
Insulated tension pole formula such as following table:
Insulated tension pole preparation method:
1) winding of fabric: dacron fabric and shuffling fabric are wound on the mandrel of coating releasing agent
On, winding process is similar to the sandwich structure (dacron fabric+shuffling fabric+dacron fabric) of tubulose, poly-
The thickness of ester fiber monolayer is 1mm, and itself and mandrel are loaded in the die cavity coating releasing agent after having wound by fabric jointly,
Then the two ends of mould are fixed.
2) vacuum system pretreatment: will adopt between static state mixing equipment, air compressor machine, vacuum pump and mould, resin trap
It is attached with hard nylon plastic(s) pipe, it is ensured that the condition of high vacuum degree in whole dipping process.Mould heating-up temperature is 100 DEG C,
The ratio of epoxy resin, methyl tetrahydro phthalic anhydride and modified imidazole is 100:98:2.At 100 DEG C, fabric is carried out vacuum to remove
Wet, vacuum is-0.08MPa, and the time of vacuum dehumidifying is 6h；Resin system heating-up temperature is 60 DEG C, when stirring, vacuum defoamation
Between be 1h, speed of agitator is 400rpm/min；
3) resin system vacuum impregnation: static mixing equipment is by static batch mixing joint accurate measurement (epoxy resin, methyl four
The ratio of hydrogen phthalic anhydride and modified imidazole is 100:98:2) after, entering conveyance conduit, resin enters under mould under 0.4Mpa pressure
Port, vacuum is-0.08MPa, and the vacuum impregnation time is 0.5h, when resin system enters mould upper port conveyance conduit,
Close the control valve of mould lower port, simultaneously close off vacuum pump, apply the dwell pressure of 0.4Mpa from mould upper port, during pressurize
Between be 2h.
4) solidification: step 3) resulting product is in 80 DEG C of solidification 6h, in 120 DEG C of solidification 12h；
5) demoulding: the demoulding obtains insulated tension pole blank；
6) gold utensil assembling: insulated tension pole blank is machined rear fitting and obtains insulated tension pole moulded products.
Embodiment 2
Insulated tension pole formula such as following table:
Insulated tension pole preparation method:
1) winding of fabric: dacron fabric and shuffling fabric are wound on the mandrel of coating releasing agent
On, winding process is similar to the sandwich structure (dacron fabric+shuffling fabric+dacron fabric) of tubulose, poly-
The thickness of ester fiber monolayer is 2mm, and itself and mandrel are loaded in the die cavity coating releasing agent after having wound by fabric jointly,
Then the two ends of mould are fixed.
2) vacuum system pretreatment: will adopt between static state mixing equipment, air compressor machine, vacuum pump and mould, resin trap
It is attached with hard nylon plastic(s) pipe, it is ensured that the condition of high vacuum degree in whole dipping process.Mould heating-up temperature is 100 DEG C,
The ratio of epoxy resin, methyl tetrahydro phthalic anhydride and modification time sulphamide is 100:98:2.5.At 100 DEG C, fabric is carried out very
Empty dehumidifying, vacuum is-0.09MPa, and the time of vacuum dehumidifying is 7h；System heating-up temperature is 70 DEG C, and mixing time is 2h, stirs
Mixing rotating speed is 500rpm/min；
3) resin system vacuum impregnation: static mixing equipment is by static batch mixing joint accurate measurement (epoxy resin, methyl four
The ratio of hydrogen phthalic anhydride and modification time sulphamide is 100:98:2.5) after, entering conveyance conduit, resin enters under 0.6Mpa pressure
Mould lower port, vacuum is-0.09MPa, and the vacuum impregnation time is 1h, treats that resin-hardener system enters mould upper port defeated
When sending pipeline, close the control valve of mould lower port, simultaneously close off vacuum pump, apply the pressurize pressure of 0.5Mpa from mould upper port
Power, the dwell time is 2h.
4) solidification: step 3) resulting product is in 80 DEG C of solidification 5h, in 120 DEG C of solidification 10h；
5) demoulding: the demoulding obtains insulated tension pole blank；
6) gold utensil assembling: insulated tension pole blank is machined rear fitting and obtains insulated tension pole moulded products.
Embodiment 3
Insulated tension pole formula such as following table:
Described insulated tension pole preparation technology:
1) winding of fabric: dacron fabric and shuffling fabric are wound on the mandrel of coating releasing agent
On, winding process is similar to the sandwich structure (dacron fabric+shuffling fabric+dacron fabric) of tubulose, poly-
The thickness of ester fiber monolayer is 3mm, and itself and mandrel are loaded in the die cavity coating releasing agent after having wound by fabric jointly,
Then the two ends of mould are fixed.
2) vacuum system pretreatment: will adopt between static state mixing equipment, air compressor machine, vacuum pump and mould, resin trap
It is attached with hard nylon plastic(s) pipe, it is ensured that the condition of high vacuum degree in whole dipping process.Mould heating-up temperature is 100 DEG C,
The ratio of epoxy resin, methyl tetrahydro phthalic anhydride and modified imidazole is 100:98:3.At 100 DEG C, fabric is carried out vacuum to remove
Wet, vacuum is-0.09MPa, and the time of vacuum dehumidifying is 8h；System heating-up temperature is 65 DEG C, and mixing time is 2h, and stirring turns
Speed is 450rpm/min,；
3) resin system vacuum impregnation: static mixing equipment is by static batch mixing joint accurate measurement (epoxy resin, methyl four
The ratio of hydrogen phthalic anhydride and modified imidazole is 100:98:3) after, entering conveyance conduit, resin enters under mould under 0.5Mpa pressure
Port, vacuum is-0.09MPa, and the vacuum impregnation time is 0.8h, treats that resin and curative systems enter the conveying of mould upper port
During pipeline, close mould lower port control valve, simultaneously close off vacuum pump, apply the dwell pressure of 0.5Mpa from mould upper port,
Dwell time is 1.5h.
4) solidification: step 3) resulting product is in 80 DEG C of solidification 5h, in 120 DEG C of solidification 11h；
5) demoulding: the demoulding obtains insulated tension pole blank；
6) gold utensil assembling: insulated tension pole blank is machined rear fitting and obtains insulated tension pole moulded products.
Embodiment 4
Insulated tension pole formula such as following table:
Described insulated tension pole preparation technology:
1) winding of fabric: dacron fabric and shuffling fabric are wound on the mandrel of coating releasing agent
On, winding process is similar to the sandwich structure (dacron fabric+shuffling fabric+dacron fabric) of tubulose, poly-
The thickness of ester fiber monolayer is 2mm, and itself and mandrel are loaded in the die cavity coating releasing agent after having wound by fabric jointly,
Then the two ends of mould are fixed.
2) high vacuum system pretreatment: by between static state mixing equipment, air compressor machine, vacuum pump and mould, resin trap
Hard nylon plastic(s) pipe is used to be attached, it is ensured that the condition of high vacuum degree in whole dipping process.To fabric at 100 DEG C
Carrying out vacuum dehumidifying, vacuum is-0.08MPa, and the time of vacuum dehumidifying is 8h；Resin system heating-up temperature is 60 DEG C, stirring,
The vacuum defoamation time is 2h, and speed of agitator is 400rpm/min；
3) polyurethane resin vacuum impregnation: static mixing equipment is by static batch mixing joint accurate measurement, polyurethane resin body
Tying up to enter under 0.6Mpa pressure mould lower port, vacuum is-0.08MPa, and the vacuum impregnation time is 1h, treats that resin system enters
When entering mould upper port conveyance conduit, close mould lower port, simultaneously close off vacuum pump, apply 0.5Mpa's from mould upper port
Dwell pressure, the dwell time is 2h；
4) solidification: step 3) resulting product is in 80 DEG C of solidification 5h, in 120 DEG C of solidification 11h；
5) demoulding: the demoulding obtains insulated tension pole blank；
6) gold utensil assembling: insulated tension pole blank is machined rear fitting and obtains insulated tension pole moulded products.
Embodiment 5
Insulated tension pole formula such as following table:
Described insulated tension pole preparation technology:
1) winding of fabric: dacron fabric and shuffling fabric are wound on the mandrel of coating releasing agent
On, winding process is similar to the sandwich structure (dacron fabric+shuffling fabric+dacron fabric) of tubulose, poly-
The thickness of ester fiber monolayer is 3mm, and itself and mandrel are loaded in the die cavity coating releasing agent after having wound by fabric jointly,
Then the two ends of mould are fixed.
2) high vacuum system pretreatment: by between static state mixing equipment, air compressor machine, vacuum pump and mould, resin trap
Hard nylon plastic(s) pipe is used to be attached, it is ensured that the condition of high vacuum degree in whole dipping process.At 100 DEG C, fabric is entered
Row vacuum dehumidifies, and vacuum is-0.09MPa, and the time of vacuum dehumidifying is 6h；Resin system heating-up temperature is 60 DEG C, stirs, very
Empty inclined heated plate is 2h, and speed of agitator is 400rpm/min；
3) polyurethane resin systems vacuum impregnation: static mixing equipment is by static batch mixing joint accurate measurement, polyurethane tree
Resin system enters mould lower port under 0.4Mpa pressure, and vacuum is-0.09MPa, and the vacuum impregnation time is 1h, treats resinite
When system enters mould upper port conveyance conduit, close mould lower port, simultaneously close off vacuum pump, apply from mould upper port
The dwell pressure of 0.5Mpa, the dwell time is 2h；
4) solidification: step 3) resulting product is in 80 DEG C of solidification 6h, in 120 DEG C of solidification 12h；
5) demoulding: the demoulding obtains insulated tension pole blank；
6) gold utensil assembling: insulated tension pole blank is machined rear fitting and obtains insulated tension pole moulded products.
Embodiment 6
Insulated tension pole formula such as following table:
Described insulated tension pole preparation technology:
1) winding of fabric: dacron fabric and shuffling fabric are wound on the mandrel of coating releasing agent
On, winding process is similar to the sandwich structure (dacron fabric+shuffling fabric+dacron fabric) of tubulose, poly-
The thickness of ester fiber monolayer is 2mm, and itself and mandrel are loaded in the die cavity coating releasing agent after having wound by fabric jointly,
Then the two ends of mould are fixed.
2) high vacuum system pretreatment: by between static state mixing equipment, air compressor machine, vacuum pump and mould, resin trap
Hard nylon plastic(s) pipe is used to be attached, it is ensured that the condition of high vacuum degree in whole dipping process.To fabric at 100 DEG C
Carrying out vacuum dehumidifying, vacuum is-0.09MPa, and the time of vacuum dehumidifying is 8h；System heating-up temperature is 70 DEG C, mixing time
For 2h, speed of agitator is 500rpm/min；
3) resin system vacuum impregnation: after static mixing equipment is by static batch mixing joint accurate measurement, enter conveyance conduit,
Vinylite enters mould lower port under 0.6Mpa pressure, and vacuum is-0.09MPa, and the vacuum impregnation time is 1h, waits to gather
When urethane resin system enters mould upper port conveyance conduit, close mould lower port, simultaneously close off vacuum pump, from mould upper end
Mouth applies the dwell pressure of 0.5Mpa, and the dwell time is 2h.
4) solidification: step 3) resulting product is in 80 DEG C of solidification 5h, in 120 DEG C of solidification 12h；
5) demoulding: the demoulding obtains insulated tension pole blank；
6) gold utensil assembling: insulated tension pole blank is machined rear fitting and obtains insulated tension pole moulded products.
Embodiment 7
Vinylite is after epoxy-modified so that it is with epoxy radicals.Prepare the mistake of insulated tension pole reference example 3
Journey.
Embodiment 8
After using acroleic acid polyurethane modified vinyl resin, prepare the process of insulated tension pole reference example 6.
The resin system used in the various embodiments described above, under room temperature, viscosity is 200～1500mPa.s.Fabric is used
Gas ions processes or silane coupler is modified, and silane coupler is vinyl silanes, amino silane or methacryloxypropyl
Base silane.
The insulated tension pole moulded products that will prepare in the various embodiments described above, after installing aluminum metal inserts, test article
Mechanical mechanics property (hot strength and bending strength) and electrical insulation properties (industrial frequency withstand voltage test and local discharge stream), all
Performance as in the table below:
As can be known from the above table, by fabric winding composition, the design of fabric composition and employing high-temperature pressurizing
Vacuum impregnation technique condition, in regulation dipping process, the viscosity of resin system is mated with the optimal of system vacuum, it is ensured that resin
And having good interface cohesion between fabric, the insulated tension pole obtained has superior electrical insulating properties and Mechanics of Machinery
Performance.
Above example is only limited in order to technical scheme to be described, the common skill of art
Art personnel should be appreciated that and can modify the detailed description of the invention of the present invention or equivalent with reference to above-described embodiment,
These claim protection models all awaited the reply in application without departing from any amendment or the equivalent of spirit and scope of the invention
Within enclosing.
Claims (10)
1. an insulated tension pole, is composited by resin system and fabric, it is characterised in that described resin is epoxy resin
System, polyurethane resin systems or vinylite system；Described fabric be aramid fabric, glass fiber cloth,
The shuffling of one or both fabrics selected in polyimide fiber fabric, basalt fibre fabrics and dacron fabric
Fabric.
A kind of insulated tension pole the most according to claim 1, it is characterised in that described epoxy-resin systems includes asphalt mixtures modified by epoxy resin
Fat, firming agent and accelerator；Described polyurethane resin systems includes methyl diphenylene diisocyanate, polyether polyol, catalysis
Agent and chain extender.
A kind of insulated tension pole the most according to claim 2, it is characterised in that described firming agent is methyl tetrahydro phthalic anhydride；Institute
Stating accelerator is modified imidazole or modified sulphamide；Described catalyst is organic tin catalyst；Described chain extender be Isosorbide-5-Nitrae-
Butanediol or ethylenediamine.
A kind of insulated tension pole the most according to claim 1, it is characterised in that described resin system and the quality of fabric
Proportioning is 1.75～2:3.
A kind of insulated tension pole the most according to claim 1, it is characterised in that under room temperature, the viscosity of described resin system is
200～1500mPa.s.
A kind of insulated tension pole the most according to claim 1, it is characterised in that described fabric monofilament format diameter is
1000d, surface density is 200g/m2。
A kind of insulated tension pole the most according to claim 1, it is characterised in that described fabric Cement Composite Treated by Plasma or
Silane coupler is modified.
A kind of insulated tension pole the most according to claim 7, it is characterised in that described silane coupler be vinyl silanes,
Amino silane or methacryloxypropyl silane.
9. the preparation method of a kind of insulated tension pole described in a claim 1, it is characterised in that described preparation method include as
Lower step:
1) dehumidifying of fabric: will be wound in the fabric on mandrel, in 100 DEG C and vacuum-0.08～-0.09MPa
Lower dehumidifying 6～8h；
2) prepare batch mixing: mix and blend resin system under 60～70 DEG C and 400～500rpm/min rotating speeds ,-0.08～-
Vacuum defoamation 1～2h under 0.09MPa, obtains resin batch mixing；
3) vacuum impregnation of fabric: under 60～80 DEG C and vacuum-0.08～-0.09MPa, by step 2) tree for preparing
Fat batch mixing dipping fabric 0.5～1h, dwell pressure 0.4～0.6Mpa after dipping, the time 1～2h；
4) solidification: then at 120 DEG C of solidifications 10～12h after solidifying 4～6h at 80 DEG C；
5) demoulding: the demoulding obtains insulated tension pole blank；
6) gold utensil assembling: fitting obtains insulated tension pole goods on insulated tension pole part blank.
The preparation method of a kind of insulated tension pole the most according to claim 9, it is characterised in that described fabric winds
Becoming sandwich structure, ectonexine is dacron fabric, and intermediate layer is blended fabric；Described ectonexine thickness be respectively 1～
3mm, dacron fabric is 1:10～1:8 with the mass ratio of blended fabric.
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| CN107877888A (en) * | 2017-10-31 | 2018-04-06 | 全球能源互联网研究院有限公司 | A kind of insulated tension pole prefabricated component preparation technology |
| CN109411164A (en) * | 2018-09-12 | 2019-03-01 | 全球能源互联网研究院有限公司 | A kind of composite post insulator plug and preparation method thereof |
| CN109427451A (en) * | 2017-09-05 | 2019-03-05 | 全球能源互联网研究院 | A kind of composite pipe and preparation method thereof for insulation operating |
| CN109624452A (en) * | 2019-01-25 | 2019-04-16 | 江苏神马电力股份有限公司 | Aramid fiber insulation pull rod and preparation method thereof |
| CN110792460A (en) * | 2019-10-31 | 2020-02-14 | 神华神东煤炭集团有限责任公司 | Hydraulic support side protection plate and preparation method thereof |
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