CN101741042A - Preparation method of composite insulation cross arm for electric outdoor anti-ultraviolet overhead line - Google Patents
Preparation method of composite insulation cross arm for electric outdoor anti-ultraviolet overhead line Download PDFInfo
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- CN101741042A CN101741042A CN201010013559A CN201010013559A CN101741042A CN 101741042 A CN101741042 A CN 101741042A CN 201010013559 A CN201010013559 A CN 201010013559A CN 201010013559 A CN201010013559 A CN 201010013559A CN 101741042 A CN101741042 A CN 101741042A
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Abstract
The invention discloses a preparation method of a composite insulation cross arm for an electric outdoor anti-ultraviolet overhead line, comprising the following steps of: manufacturing an inner forming mould and an outer forming mould, and heating, polishing and chroming the inner forming mould and the outer forming mould; preparing an epoxy resin adhesive comprising epoxy resin, a curing agent, a toughening agent, an abrasion resistant material and an absorbent, wherein the epoxy resin adhesive is injected into a performing mould by a gear pump; preparing the composite insulation cross arm by materials comprising glass-fiber direct roving, an ECR glass-fiber continuous felt and an ECR glass-fiber surfacing felt or cloth; dividing the forming mould temperature control into inner mould temperature control and outer mould temperature control; curing and forming a formed product in a secondary curing microwave-heating device again, wherein the cross section of the composite insulation cross arm is of the shapes of an angle, a rectangular pipe and a square pipe. The invention has the advantages of light weight, high strength, impact resistance, good dielectric property, corrosion resistance and heat resistance and high anti-ultraviolet capacity; and in addition, the materials of the composite insulation cross arm belong to hot setting resin and glass fibers, thereby reducing the frequency of being stolen and being widely used for overhead electric poles.
Description
Technical field
The present invention relates to the preparation method of the insulator crossarm of electric power outdoor aerial line use, be specifically related to the preparation method of the composite insulation cross arm of electric outdoor anti-ultraviolet overhead line use.
Background technology
At present, in the following transmission line of power department 35KV, be used to install that the cross-arm of insulator is most of is wooden cross arm and iron cross arm.Yet wooden cross arm and iron cross arm all exist, and antiseptic power is poor, poor fire, poor insulativity, life-span short, easy defective such as stolen.
Summary of the invention
The object of the present invention is to provide a kind of preparation method with composite insulation cross arm in light weight, that intensity good, impact resistance, dielectric property are good, the electric outdoor anti-ultraviolet overhead line of corrosion resistance, heat resistance is good, anti-uv-ray is strong electric power special use uses.
In order to overcome the deficiencies in the prior art, technical scheme of the present invention is to solve like this: the preparation method of the composite insulation cross arm that electric outdoor anti-ultraviolet overhead line is used, undertaken by following step:
(1) mould is manufactured:
Manufacture inside and outside mould according to the geomery of customer requirement, its mould is divided into preforming tool and mould, and described preforming tool is provided with the vacuum gum-injecting port, to mould heat-treat, polishing, chromium plating;
(2) preparation of antiultraviolet epoxide-resin glue:
The antiultraviolet epoxide-resin glue is by JEh-012 epoxy resin, curing agent, flexibilizer, high-abrasive material, ultra-violet absorber is formed, described curing agent is a JH-0610 modified methyl HHPA curing agent, described flexibilizer is poly sebacic polyanhydride, described ultra-violet absorber is an inorganic UV shield agent, described high-abrasive material is a nanometer grade silica, its epoxy resin: curing agent: flexibilizer: high-abrasive material: ultra-violet absorber=90～110: 110～140: 0.4～0.8: 1.0～2.5: 0.5, and above-mentioned material is poured the vacuum stirring device into, vacuum stirring 15～25 minutes, leave standstill 1 hour～1 hour 30 minutes, stand-by;
(3) direct yarn of glass fibre or cloth and glass mat are all selected the raw material of ECR corrosion resistance for use and are sprayed 2% vaporific KH560 ethanol solution;
(4) the antiultraviolet epoxide-resin glue that leaves standstill adopts the gear pump injecting systems to squeeze in the preforming tool, and the size of flow is by the rotational speed regulation of gear pump, and the constant current amount is injected, and injecting glue pressure is 18Mpa～25Mpa;
(5) the composite insulation cross arm material is made up of the direct yarn of ECR glass fibre and ECR glass fibre continuous felt and ECR fiberglass surfacing mat or cloth, the surperficial felt of the internal layer of ECR fiberglass surfacing mat or cloth and superficies four direction should enter preforming tool straight, uniformly, the intermediate layer is the acidproof direct yarn of ECR alkali-free, the acidproof direct yarn of described ECR alkali-free is the 4800Tex yarn, described ECR glass fibre continuous felt is EMK380, and described ECR fiberglass surfacing mat or cloth mass area ratio are 60g/m
2
(6) inside and outside mould heating is simultaneously adopted in control of mould temperature and hauling speed control and curing, the control of mould temperature divides control of internal mold temperature and the control of external mold temperature, described mould internal mold temperature is controlled between 120 ℃-130 ℃, described mould external mold Fen San heats in the district, be that the preheating zone temperature is controlled between 110 ℃-120 ℃, gel district temperature is controlled between 150 ℃-160 ℃, curing molding district temperature is controlled between 170 ℃-180 ℃, and the pultrusion hauling speed is 9.0cm/min continuously;
(7) regelate temperature control, goods after the moulding are further curing molding in the regelate microwave heating equipment, the regelate device length is 3 meters, and the regelate temperature controlling range is: inlet temperature is 150 ℃-160 ℃, and outlet temperature is 160 ℃-170 ℃;
(8) product colour: by customer requirement, product colour branch export-oriented is grey, orange colour, salmon pink, pure white;
(9) product length: by the customer requirement scale, the outdoor electric power specific complex of high strength antiultraviolet insulator crossarm specification section configuration is angle type cross-arm, square type pipe cross-arm, square pipe cross-arm.
The present invention compared with prior art has following beneficial effect: FRP Composite Material (fiberglass) electric insulation cross-arm have in light weight, intensity good, impact resistance, dielectric property are good, corrosion resistance, heat resistance is good, anti-uv-ray is strong advantage.Because its main material belongs to thermosetting resin and glass fibre, therefore can not secondary operations, reduced stolen probability like this.
After testing, its power frequency proof voltage, leakage current, glass bending strength and load satisfy JB/T8179-1999 high-tension line porcelain-arm insulator size technologies whom mark, and JB/T9676-1999 high-tension line porcelain-arm insulator technical indicator satisfies GB13398 live line working insulating bar general technical specifications.
Description of drawings
Fig. 1 is technological process of production figure of the present invention;
Fig. 2 is that material of the present invention is formed structural representation;
Fig. 3 is an angle type cross-arm master TV structure schematic diagram;
Fig. 4 is a rectangular tube cross-arm master TV structure schematic diagram;
Fig. 5 is a rectangular tube cross-arm master TV structure schematic diagram;
Embodiment
Accompanying drawing is embodiments of the invention.
Below in conjunction with accompanying drawing summary of the invention is described further:
With reference to shown in Figure 2, at first in preforming tool, spread ECR fiberglass surfacing mat or cloth successively respectively, repave into ECR glass fibre continuous felt, the direct yarn of ECR glass fibre is gone in the shop on the glass fibre continuous felt, one deck ECR fiberglass surfacing mat or cloth more at last, the surperficial felt of its superficies four direction or cloth should enter preforming tool straight, uniformly.
Shown in Figure 1, the direct yarn of glass fibre enters yarn guide by tension control mechanism, lay the glass fibre continuous felt respectively on the direct yarn of glass fibre outside yarn guide, fiberglass surfacing mat or cloth, the direct yarn of its glass fibre, the glass fibre continuous felt, fiberglass surfacing mat or cloth enter in the coupling agent sprayer, the spraying coupling agent, described coupling agent is 2% vaporific KH560 ethanol solution, the direct yarn of its coupling agent and glass fibre, the glass fibre continuous felt, fiberglass surfacing mat or cloth summation, by mass ratio is coupling agent: the direct yarn of glass fibre, the glass fibre continuous felt, fiberglass surfacing mat or cloth summation=1.5 part～2 parts: 98.5 parts～98 parts, the result of coupling agent and glass fiber yarn surface action generates firm covalent bond, through the direct yarn of glass fibre after the coupling agent treatment, the glass fibre continuous felt, fiberglass surfacing mat or cloth are spread in the preforming tool in order, by the vacuum gum-injecting port in the preforming tool epoxide-resin glue is injected preforming tool, allow glue be full of mould, in mould, carry out preheating then, gel solidification divides three phases, enter regelate again through the semi-finished product after the three phases processing and handle, product is from the direct yarn of glass fibre, the glass fibre continuous felt, fiberglass surfacing mat or cloth are laid, surface treatment, perfusion, the whole process of moulding all is by the continuous pultrusion traction of draw-gear.
Figure 3 shows that angle type cross-arm master looks with a left side looks the structure for amplifying schematic diagram, has at least four holes that insulators are installed on the type cross-arm horizontal plane of angle, angle type cross-arm vertical rod have at least four with electric pole connecting screw hole and two roll adjustment holes.
Figure 4 shows that square type cross-arm master looks with a left side looks the structure for amplifying schematic diagram, has the hole of at least four not equidistant or equidistant installation insulators on the square type cross-arm horizontal plane, square type cross-arm vertical plane have at least four with electric pole connecting screw hole.
Figure 5 shows that square cross-arm master looks with a left side looks the structure for amplifying schematic diagram, has the hole of at least four not equidistant or equidistant installation insulators on the square cross-arm horizontal plane, square cross-arm vertical plane have at least four with electric pole connecting screw hole.
Embodiment 1
The preparation method of the composite insulation cross arm that electric outdoor anti-ultraviolet overhead line is used, undertaken by following step:
(1) mould is manufactured:
Manufacture inside and outside mould according to the geomery of customer requirement, its mould is divided into preforming tool and mould, and described preforming tool is provided with the vacuum gum-injecting port, to mould heat-treat, polishing, chromium plating;
(2) preparation of antiultraviolet epoxide-resin glue:
The antiultraviolet epoxide-resin glue is by JEh-012 epoxy resin, curing agent, flexibilizer, high-abrasive material, ultra-violet absorber is formed, described curing agent is a JH-0610 modified methyl HHPA curing agent, described flexibilizer is poly sebacic polyanhydride, described ultra-violet absorber is an inorganic UV shield agent, described high-abrasive material is a nanometer grade silica, its epoxy resin: curing agent: flexibilizer: high-abrasive material: ultra-violet absorber=90～110: 110～140: 0.4～0.8: 1.0～2.5: 0.5, and above-mentioned material is poured the vacuum stirring device into, vacuum stirring 15～25 minutes, leave standstill 1 hour～1 hour 30 minutes, stand-by;
(3) direct yarn of glass fibre or cloth and glass mat are all selected the raw material of ECR corrosion resistance for use and are sprayed 2% vaporific KH560 ethanol solution;
(4) the antiultraviolet epoxide-resin glue that leaves standstill adopts the gear pump injecting systems to squeeze in the preforming tool, and the size of flow is by the rotational speed regulation of gear pump, and the constant current amount is injected, and injecting glue pressure is 18Mpa～25Mpa;
(5) the composite insulation cross arm material is made up of the direct yarn of ECR glass fibre and ECR glass fibre continuous felt and ECR fiberglass surfacing mat or cloth, the surperficial felt of the internal layer of ECR fiberglass surfacing mat or cloth and superficies four direction should enter preforming tool straight, uniformly, the intermediate layer is the acidproof direct yarn of ECR alkali-free, the acidproof direct yarn of described ECR alkali-free is the 4800Tex yarn, described ECR glass fibre continuous felt is EMK380, and described ECR fiberglass surfacing mat or cloth mass area ratio are 60g/m
2
(6) inside and outside mould heating is simultaneously adopted in control of mould temperature and hauling speed control and curing, the control of mould temperature divides control of internal mold temperature and the control of external mold temperature, described mould internal mold temperature is controlled between 120 ℃-130 ℃, described mould external mold Fen San heats in the district, be that the preheating zone temperature is controlled between 110 ℃-120 ℃, gel district temperature is controlled between 150 ℃-160 ℃, curing molding district temperature is controlled between 170 ℃-180 ℃, and the pultrusion hauling speed is 9.0cm/min continuously;
(7) regelate temperature control, goods after the moulding are further curing molding in the regelate microwave heating equipment, the regelate device length is 3 meters, and the regelate temperature controlling range is: inlet temperature is 150 ℃-160 ℃, and outlet temperature is 160 ℃-170 ℃;
(8) product colour: by customer requirement, product colour branch export-oriented is grey, orange colour, salmon pink, pure white;
(9) product length: by the customer requirement scale, the outdoor electric power specific complex of high strength antiultraviolet insulator crossarm specification section configuration is angle type cross-arm, square type pipe cross-arm, square pipe cross-arm.
Embodiment 2
The preparation method of the composite insulation cross arm that electric outdoor anti-ultraviolet overhead line is used, undertaken by following step:
(1) mould is manufactured:
Manufacture inside and outside mould according to the geomery of customer requirement, its mould is divided into preforming tool and mould, and described preforming tool is provided with the vacuum gum-injecting port, to mould heat-treat, polishing, chromium plating;
(2) preparation of antiultraviolet epoxide-resin glue:
The antiultraviolet epoxide-resin glue is by JEh-012 epoxy resin, curing agent, flexibilizer, high-abrasive material, ultra-violet absorber is formed, described curing agent is a JH-0610 modified methyl HHPA curing agent, described flexibilizer is poly sebacic polyanhydride, described ultra-violet absorber is an inorganic UV shield agent, described high-abrasive material is a nanometer grade silica, its epoxy resin: curing agent: flexibilizer: high-abrasive material: ultra-violet absorber=100: 130: 0.5: 2: 0.5, above-mentioned material was poured the vacuum stirring device into, vacuum stirring 18～23 minutes, leave standstill 1 hour～1 hour 30 minutes, stand-by;
(3) direct yarn of glass fibre or cloth and glass mat are all selected the raw material of ECR corrosion resistance for use and are sprayed 2% vaporific KH560 ethanol solution;
(4) the antiultraviolet epoxide-resin glue that leaves standstill adopts the gear pump injecting systems to squeeze in the preforming tool, and the size of flow is by the rotational speed regulation of gear pump, and the constant current amount is injected, and injecting glue pressure is 18Mpa～25Mpa;
(5) the composite insulation cross arm material is made up of the direct yarn of ECR glass fibre and ECR glass fibre continuous felt and ECR fiberglass surfacing mat or cloth, the surperficial felt of the internal layer of ECR fiberglass surfacing mat or cloth and superficies four direction should enter preforming tool straight, uniformly, the intermediate layer is the acidproof direct yarn of ECR alkali-free, the acidproof direct yarn of described ECR alkali-free is the 4800Tex yarn, described ECR glass fibre continuous felt is EMK380, and described ECR fiberglass surfacing mat or cloth mass area ratio are 60g/m
2
(6) inside and outside mould heating is simultaneously adopted in control of mould temperature and hauling speed control and curing, the control of mould temperature divides control of internal mold temperature and the control of external mold temperature, described mould internal mold temperature is controlled between 122 ℃-128 ℃, described mould external mold Fen San heats in the district, be that the preheating zone temperature is controlled between 113 ℃-118 ℃, gel district temperature is controlled between 155 ℃-158 ℃, curing molding district temperature is controlled between 175 ℃-178 ℃, and the pultrusion hauling speed is 9.0cm/min continuously;
(7) regelate temperature control, goods after the moulding are further curing molding in the regelate microwave heating equipment, the regelate device length is 3 meters, and the regelate temperature controlling range is: inlet temperature is 152 ℃-158 ℃, and outlet temperature is 164 ℃-168 ℃;
(8) product colour: by customer requirement, product colour branch export-oriented is grey, orange colour, salmon pink, pure white;
(9) product length: by the customer requirement scale, the outdoor electric power specific complex of high strength antiultraviolet insulator crossarm specification section configuration is angle type cross-arm, square type pipe cross-arm, square pipe cross-arm.The preparation method of composite insulation cross arm, undertaken by following step:
(1) mould is manufactured:
Manufacture inside and outside mould according to the geomery of customer requirement, its mould is divided into preforming tool and mould, and described preforming tool is provided with the vacuum gum-injecting port, to mould heat-treat, polishing, chromium plating;
(2) preparation of antiultraviolet epoxide-resin glue:
In order to make goods that higher resistance to elevated temperatures be arranged, choose the high-temperature resin prescription by JEh-012 epoxy resin, curing agent, flexibilizer, high-abrasive material, ultra-violet absorber is formed, described curing agent is a JH-0610 modified methyl HHPA curing agent, described flexibilizer is poly sebacic polyanhydride, and described ultra-violet absorber is an inorganic UV shield agent, and described high-abrasive material is a nanometer grade silica, its epoxy resin: curing agent: flexibilizer: high-abrasive material: ultra-violet absorber=100: 130: 0.5: 2: 0.5, above-mentioned material is poured the vacuum stirring device into, vacuum stirring 15～25 minutes, leave standstill 1 hour～1 hour 30 minutes, stand-by;
(3) glass fibre is that direct yarn or cloth and glass mat are all selected the raw material of ECR corrosion resistance for use and sprayed 2% vaporific KH560 ethanol solution;
(4) the high temperature antiultraviolet resin glue that leaves standstill adopts the gear pump injecting systems to squeeze in the preforming tool, and the size of flow is by the rotational speed regulation of gear pump, and the constant current amount is injected, and injecting glue pressure is 18Mpa～25Mpa;
(5) the composite insulation cross arm material is made up of with ECR glass fibre continuous felt and ECR fiberglass surfacing mat the acidproof direct yarn of ECR alkali-free, the surperficial felt of the internal layer of ECR fiberglass surfacing mat and superficies four direction should enter preforming tool straight, uniformly, the intermediate layer is the acidproof direct yarn of ECR alkali-free, the acidproof direct yarn of described ECR alkali-free is the 4800Tex yarn, described ECR glass fibre continuous felt is EMK380, and described ECR fiberglass surfacing mat mass area ratio is 60g/m
2
(6) inside and outside mould heating is simultaneously adopted in control of mould temperature and hauling speed control and curing, the control of mould temperature divides control of internal mold temperature and the control of external mold temperature, described mould internal mold temperature is controlled between 120 ℃-130 ℃, described mould external mold Fen San heats in the district, be that the preheating zone temperature is controlled between 110 ℃-120 ℃, gel district temperature is controlled between 150 ℃-160 ℃, curing molding district temperature is controlled between 170 ℃-180 ℃, and the pultrusion hauling speed is 9.0cm/min continuously;
(7) regelate temperature control, goods after the moulding are further curing molding in the regelate microwave heating equipment, the regelate device length is 3 meters, and the regelate temperature controlling range is: inlet temperature is 150 ℃-160 ℃, and outlet temperature is 160 ℃-170 ℃;
(8) product colour: by customer requirement, product colour branch export-oriented is grey, orange colour, salmon pink, pure white;
(9) product length: by the customer requirement scale, the outdoor electric power specific complex of high strength antiultraviolet insulator crossarm specification section configuration is angle type cross-arm, square type pipe cross-arm, square pipe cross-arm.
1, glass fibre is selected alkali-free acidproof (ECR) for use directly yarn (4800Tex), alkali-free acidproof (ECR) glass surface felt and alkali-free acidproof (ECR) continuous felt (0.01 is thick) is through the vaporific coupling agent solution of spraying, and it is better to make itself and high temperature antiultraviolet resin glue fuse property.
2, high temperature antiultraviolet resin glue prescription is unique, selects the High temp. epoxy resins system for use, the good methyl hexahydrophthalic anhydride of weatherability is as curing agent and add flexibilizer, filler, and the ultra-violet absorber equal vacuum stirs, leaves standstill.
3, dipping method uniqueness, the steeping vat infusion process is adopted in general continuous pultrusion, glass fiber by the glue groove that fills resin glue after, it is wayward to enter this dipping method glue of mould content, glue content is generally too high, shrinkage is big.Adopt the gear pump type injecting systems resin glue that mixes to be squeezed into and to realize the injection of constant current amount in the mould easily by gear pump.Whole process is carried out the product excellent insulation performance in sealing, in the vacuum.
4, external mold is heated evenly inside and outside the heating assurance respectively simultaneously in the mould.
Claims (1)
1. the preparation method of the composite insulation cross arm used of an electric outdoor anti-ultraviolet overhead line is characterized in that being undertaken the preparation method of this composite insulation cross arm by following step:
(1) mould is manufactured:
Manufacture inside and outside mould according to the geomery of customer requirement, its mould is divided into preforming tool and mould, and described preforming tool is provided with the vacuum gum-injecting port, to mould heat-treat, polishing, chromium plating;
(2) preparation of antiultraviolet epoxide-resin glue:
The antiultraviolet epoxide-resin glue is by JEh-012 epoxy resin, curing agent, flexibilizer, high-abrasive material, ultra-violet absorber is formed, described curing agent is a JH-0610 modified methyl HHPA curing agent, described flexibilizer is poly sebacic polyanhydride, described ultra-violet absorber is an inorganic UV shield agent, described high-abrasive material is a nanometer grade silica, its epoxy resin: curing agent: flexibilizer: high-abrasive material: ultra-violet absorber=90～110: 110～140: 0.4～0.8: 1.0～2.5: 0.5, and above-mentioned material is poured the vacuum stirring device into, vacuum stirring 15～25 minutes, leave standstill 1 hour～1 hour 30 minutes, stand-by;
(3) glass fibre is that direct yarn or cloth and glass mat are all selected the raw material of ECR corrosion resistance for use and sprayed 2% vaporific KH560 ethanol solution;
(4) the high temperature antiultraviolet epoxide-resin glue that leaves standstill adopts the gear pump injecting systems to squeeze in the preforming tool, and the size of flow is by the rotational speed regulation of gear pump, and the constant current amount is injected, and injecting glue pressure is 18Mpa～25Mpa;
(5) the composite insulation cross arm material is made up of the direct yarn of glass fibre and ECR glass fibre continuous felt and ECR fiberglass surfacing mat or cloth, the surperficial felt of the internal layer of ECR fiberglass surfacing mat or cloth and superficies four direction should enter preforming tool straight, uniformly, the intermediate layer is the acidproof direct yarn of ECR alkali-free, the direct yarn of described ECR glass fibre is the 4800Tex yarn, described ECR glass fibre continuous felt is EMK380, and described ECR fiberglass surfacing mat mass area ratio is 60g/m
2
(6) inside and outside mould heating is simultaneously adopted in control of mould temperature and hauling speed control and curing, the control of mould temperature divides control of internal mold temperature and the control of external mold temperature, described mould internal mold temperature is controlled between 120 ℃-130 ℃, described mould external mold Fen San heats in the district, be that the preheating zone temperature is controlled between 110 ℃-120 ℃, gel district temperature is controlled between 150 ℃-160 ℃, curing molding district temperature is controlled between 170 ℃-180 ℃, and the pultrusion hauling speed is 9.0cm/min continuously;
(7) regelate temperature control, goods after the moulding are further curing molding in the regelate microwave heating equipment, the regelate device length is 3 meters, and the regelate temperature controlling range is: inlet temperature is 150 ℃-160 ℃, and outlet temperature is 160 ℃-170 ℃;
(8) product colour: by customer requirement, product colour branch export-oriented is grey, orange colour, salmon pink, pure white;
(9) product length: by the customer requirement scale, the outdoor electric power specific complex of high strength antiultraviolet insulator crossarm specification section configuration is angle type cross-arm, square type pipe cross-arm, square pipe cross-arm.
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| CN201010013559A CN101741042B (en) | 2010-01-07 | 2010-01-07 | Preparation method of composite insulation cross arm for electric outdoor anti-ultraviolet overhead line |
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| CN201010013559A CN101741042B (en) | 2010-01-07 | 2010-01-07 | Preparation method of composite insulation cross arm for electric outdoor anti-ultraviolet overhead line |
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| CN102966257A (en) * | 2012-11-16 | 2013-03-13 | 中国电力工程顾问集团西北电力设计院 | 750kV composite material cross arm |
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| CN103015789B (en) * | 2012-12-05 | 2015-07-29 | 江苏神马电力股份有限公司 | The ply angles of insulation tube in compound cross-arm |
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