CN211591548U - Winding belt containing flexible fluorocarbon material - Google Patents
Winding belt containing flexible fluorocarbon material Download PDFInfo
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- CN211591548U CN211591548U CN201920570896.5U CN201920570896U CN211591548U CN 211591548 U CN211591548 U CN 211591548U CN 201920570896 U CN201920570896 U CN 201920570896U CN 211591548 U CN211591548 U CN 211591548U
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Abstract
The utility model contains the winding belt made of flexible fluorocarbon material, a fiber reinforcing net is laid between two layers of rubber material film products which are formed by mixing rubber for many times, a flexible fluorocarbon material layer is laid above the winding belt, the winding belt is formed by vulcanizing treatment through a vulcanizing machine, a galvanized steel wire layer is wound outside a main cable steel wire, the winding belt is obliquely wound and laminated and coated outside the galvanized steel wire layer through an oblique winding device, finally the winding belt and the galvanized steel wire layer are hot-melt combined and coated outside a metal main cable through a heating and pressurizing process, the weather resistance, the ultraviolet aging resistance, the color fastness and other parameter indexes of the composite material can be improved, the self-cleaning capability of the protective material is enhanced, even if the composite material is exposed in humid, salt fog and polluted air for a long time, the composite material can continuously bear severe service environments such as fatigue corrosion, metal corrosion and stress corrosion, the protective effect and the service life of a cable-stayed bridge and a suspension bridge are improved, and the spraying construction is not needed.
Description
Technical Field
The invention relates to a winding belt containing flexible fluorocarbon materials in an anti-corrosion protection system of a steel cable stayed bridge and a suspension bridge main cable and a manufacturing and winding construction method thereof.
Background
River and sea traffic facilities mainly depend on large bridges to form a traffic road, the design age is generally considered according to about 100 years, the main quality indexes of the bridges are reflected in the aspects of reliability, durability and environmental adaptability, and the key quality indexes of the cable-stayed bridge and the suspension bridge are protection measures of metal cables; the metal main cable is usually formed by combining tens of thousands of steel strands, is exposed in humid, salt-fog and polluted air for a long time, continuously bears severe service environments such as fatigue corrosion, metal corrosion and stress corrosion, reduces the safety performance of the metal main cable, and influences the service life of a bridge; the protection of "metal steel wire winding protection + flexible combined material protection" generally adopts among the prior art, and although flexible combined material has intensity height, the characteristics that weatherability is good, nevertheless expose for a long time and rain and still can reduce the colour fastness of external material, composite's ageing with higher speed, outside inoxidizing coating is easy to split for moisture gets into the inside corrosion that forms of metal main push-towing rope through the crack in the air, influences the protecting effect of metal main push-towing rope.
Disclosure of Invention
The invention aims to solve the technical problem of providing a wrapping belt containing a flexible fluorocarbon material, a manufacturing method thereof and a wrapping construction method thereof, wherein the wrapping belt can improve the performance of an external composite material in a metal main cable protection system, improve the parameter indexes of the composite material such as weather resistance, ultraviolet aging resistance and the like, and prolong the safe service life of a metal main cable.
The invention relates to a wrapping tape containing a flexible fluorocarbon material, which is characterized in that: the winding belt comprises a latticed fiber reinforced net layer, wherein an upper rubber sheet layer and a lower rubber sheet layer are respectively arranged above and below the fiber reinforced net layer, a flexible fluorocarbon material layer is also arranged above the upper rubber sheet layer, and the flexible fluorocarbon material layer, the upper rubber sheet layer, the fiber reinforced net layer and the lower rubber sheet layer are combined through vulcanization to form a winding belt of an integral structure;
the rubber sheet layer material is a rubber material formed by repeated rubber mixing;
the rubber material is prepared from a mixture of high-molecular polyethylene rubber and a rubber auxiliary agent in a certain proportion;
the grid specification of the fiber reinforced net layer is 8mm multiplied by 8 mm;
the total thickness of the flexible fluorocarbon material layer, the upper rubber sheet layer, the fiber reinforced net layer and the lower rubber sheet layer is 1-3 mm;
the manufacturing method of the wrapping tape containing the flexible fluorocarbon material is characterized by comprising the following steps: the method comprises the following steps:
step one, banburying at high temperature: mixing a high-molecular polyethylene rubber product and a rubber auxiliary material according to a certain proportion, setting the rubber mixing temperature to be 100-160 ℃ and the rubber mixing time to be 14-30 min, feeding materials according to a corresponding sequence, and carrying out high-temperature banburying treatment to obtain a preliminarily banburied rubber product; the high molecular polyethylene rubber product is cross-linked chlorosulfonated polyethylene, the rubber auxiliary agent is a mixture of a scorch retarder and a lubricant, and the addition amount of the rubber auxiliary agent is 5-10% of the total amount of the material;
secondly, mixing rubber for the second time: keeping the primary rubber product subjected to high-temperature banburying at a certain temperature, cooling, and carrying out a secondary rubber mixing process after complete cooling until the tensile strength of the rubber sheet material is detected to be greater than 50N/mm and the Shore A hardness reaches 82-86;
step three, multi-roll calendering: adopting a multi-roller calender to carry out calendering treatment to form a rubber sheet product, adjusting the calendering speed and the feeding amount in the calendering process, and adjusting the calendering speed and the feeding speed according to the thickness and the width of the customized material to ensure that the appearance quality of the material meets the requirement of later process processing;
fourthly, paving: the pavement is divided into four layers, wherein the bottom layer is a film product, a network-shaped fiber reinforced net is sequentially placed, the longitude and latitude density and the thickness of the fiber reinforced net are adjusted, the film product is placed, the flexible fluorocarbon material layer paved on the top layer is subjected to protection treatment, and the three layers are paved and finished sequentially according to the proportion and the corresponding sequence; the placing amount is as follows: fiber-reinforced web: high-molecular rubber: the fluorocarbon material is paved and finished according to the sequence of 2:1:2: 1;
step five, a vulcanization process: vulcanizing the completely paved product by a vulcanizing machine, setting the vulcanization temperature to be 100-200 ℃, and the vulcanization time to be positive vulcanization time, and analyzing a vulcanization curve of the vulcanized product to ensure that the physical performance of the vulcanized product is optimal and the vulcanization efficiency is improved;
in the fifth step, the vulcanization instrument is used for carrying out real-time and multiple analyses in the vulcanization process; at normal temperature of 23 ℃, the breaking force is more than or equal to 700N/mm, the tear strength is more than or equal to 50N/mm, and when the artificial aging test is used for detection, the tensile strength retention rate and the elongation at break are more than or equal to 80% at 250 h;
a winding construction method applied to the winding belt containing the flexible fluorocarbon material is characterized in that: the method comprises the following steps:
firstly, winding a galvanized steel wire layer outside a main cable steel wire; the oblique winding device is stably installed on the main cable, a winding and wrapping tape coil is added on the oblique winding device, and the oblique winding and the overlapping are sequentially pressed obliquely, laminated, wound and wrapped along the steel wire of the main cable; after the winding and coating of the previous winding and coating tape coil is finished, the position and the tension degree of a winding and coating tape on the previous winding and coating tape coil are kept, the tail end of the winding and coating tape coil is flattened, the head end of the next winding and coating tape coil is cut short, the head end of the next winding and coating tape coil is laminated above the tail end of the previous winding and coating tape coil, and the head end of the next winding and coating tape coil is fixedly bonded; by analogy, the main cable steel wire is completely wound and covered, and the distance between every two diagonal winding belts is equal; heating and pressurizing for 24 hr for heating at 90 deg.C and 130 deg.C or below, and heating for 2 cycles (each for about 3 min). The inflation pressure of the heating sleeve is controlled between 20KPa and 30 KPa;
the overlying coverage rate is more than or equal to 52 percent;
the winding direction of the winding belt is anticlockwise, the gaps between the winding belt and the main cable clamps at the two ends are connected in a sealing mode through a special sealant for the main cables, and the sealant is polysulfide sealant.
The invention relates to a wrapping belt containing flexible fluorocarbon material and a manufacturing and winding construction method thereof, wherein a fiber reinforcing net is laid between two layers of rubber film products formed by repeated rubber mixing, a flexible fluorocarbon material layer is laid on the upper layer of the rubber film products, then a vulcanizing machine is used for vulcanizing treatment to form a wrapping belt with an integral structure, a galvanized steel wire layer is wound outside a main cable steel wire, the wrapping belt is obliquely wound, laminated and coated outside the galvanized steel wire layer through an oblique winding device, and finally the wrapping belt and the galvanized steel wire layer are hot-melted and combined to wrap the outside of a metal main cable through a heating and pressurizing process, so that the corrosion speed of the metal main cable is reduced, the performance of an external composite material in a metal main cable protection system can be improved, the parameter indexes of the composite material, such as weather resistance, ultraviolet aging resistance, color fastness and the like, are improved, the self-cleaning capability of the protection material is enhanced, and even the, In the presence of salt mist and polluted air, the salt mist can continuously bear severe service environments such as fatigue corrosion, metal corrosion, stress corrosion and the like, the protection effect and the service life of the cable-stayed bridge and the suspension bridge are improved, and the spraying construction is not needed.
Drawings
FIG. 1 is a schematic perspective view of a wrapping tape containing a flexible fluorocarbon material according to an embodiment of the present invention;
FIG. 2 is a schematic plan view of a wrapping tape containing a flexible fluorocarbon material according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a wrapping tape comprising a flexible fluorocarbon material according to an embodiment of the present invention during winding construction;
FIG. 4 is a schematic diagram of the connection position of a coil of a wrapping tape and a next coil of a wrapping tape comprising a flexible fluorocarbon material according to an embodiment of the present invention;
in the figure: 1-flexible fluorocarbon material, 2-polyethylene composite material, 3-fiber reinforcing net, 4-main cable clamp, 5-main cable special sealant, 6-wrapping belt, 7-externally-wrapped galvanized steel wire layer, 8-main cable steel wire, 9-next wrapping belt head end, and 10-last wrapping belt end.
Detailed Description
As shown in the figure, a contain flexible fluorocarbon material twine band, in latticed fibre strengthen 3 top, below set up a rubberizing lamella 2 respectively, film layer 21 down, rubberizing lamella 2 top still is provided with flexible fluorocarbon material layer 1, rubberizing lamella 2, fibre strengthen 3, film layer 21 layer down combine the band of twining that constitutes overall structure through vulcanizing, flexible fluorocarbon material has multiple colour to select, does not fade, has improved the sun-proof grade of material, and the color fastness effect is high.
The upper rubber sheet layer 2 and the lower rubber sheet layer 21 are made of rubber materials formed by repeated rubber mixing, the raw materials of the rubber materials are a mixture of high-molecular polyethylene rubber and rubber auxiliaries in a certain proportion, and the tensile strength and the Shore A hardness are high.
The grid specification of the fiber reinforced net layer 3 is 8mm multiplied by 8mm, the total thickness of the flexible fluorocarbon material layer, the upper rubber sheet layer, the fiber reinforced net layer and the lower rubber sheet layer is 1 mm-3 mm, the thickness is moderate, and the protective performance is good.
The self-cleaning paint does not need to be protected by spraying construction, and has the performances of good self-cleaning capability, 8-grade color fastness, more than 45N of tearing resistance, more than 80N of tensile strength, more than 70% of elongation at break and the like.
The manufacturing method for manufacturing the wrapping tape containing the flexible fluorocarbon material comprises the following steps:
step one, banburying at high temperature: adding a high-molecular polyethylene rubber product and a rubber auxiliary material into an internal mixer according to a certain proportion, mixing, setting the mixing temperature to be 100-160 ℃ and the mixing time to be 14-30 min, feeding materials according to a corresponding sequence, and carrying out high-temperature banburying treatment to obtain a preliminarily banburied rubber product;
the high molecular polyethylene material is cross-linked chlorosulfonated polyethylene, the rubber auxiliary agent mainly comprises a scorch retarder and a lubricant, the scorch retarder is used for preventing the rubber from generating an early vulcanization phenomenon in the continuous processing process, and the lubricant is used for improving the flowing property of the rubber in the processing process. The addition amount of the auxiliary agent is an auxiliary effect, is determined according to the addition amount of the main material, and is generally 5-10%, and 8% of the main material is selected in the embodiment of the invention; the added crosslinked chlorosulfonated polyethylene and the auxiliary agent are mixed in an internal mixer, the internal structure of the internal mixer is complex, the internal mixer is mainly mixed in the internal mixer, and the steps are simply divided into: the steps of subdivision, mixing, dispersion and homogenization. And heating for rubber mixing after the mixing is finished.
Secondly, mixing rubber for the second time: keeping the primary rubber product subjected to high-temperature banburying at a certain temperature, cooling, and carrying out a secondary rubber mixing process after complete cooling until the tensile strength of the rubber sheet material is detected to be greater than 50N/mm, the Shore A hardness reaches 82-86, and 85 is selected in the example;
step three, multi-roll calendering: adopting a multi-roller calender to carry out calendering treatment to form a rubber sheet product, adjusting the calendering speed and the feeding amount in the calendering process, and adjusting the calendering speed and the feeding speed according to the thickness and the width of the customized material to ensure that the appearance quality of the material meets the requirement of later process processing;
the thickness of the wrapping belt in the technical requirements is 2.40mm, and the width is 300 mm;
the thickness of the finished wrapping belt produced in the embodiment is 2.40 +/-0.1 mm, the width is 300 +/-5 mm, two to three times of calendering are continuously carried out according to the thickness requirement of the material, the calendering speed of a roller is set to be 70m/min, the calendering speed and the feeding speed adopt constant speed calendering, and the speed ratio is carried out according to 1: 1.
Fourthly, paving: the pavement is divided into four layers, wherein the bottom layer is a film product, a network-shaped fiber reinforced net is sequentially placed, the longitude and latitude density and the thickness of the fiber reinforced net are adjusted, the film product is placed, the uppermost layer is paved with a fluorocarbon material for protection treatment, and the three layers are paved and finished in sequence according to the proportion and the corresponding sequence; the placing amount is as follows: fiber-reinforced web: high-molecular rubber: the fluorocarbon material is prepared in a ratio of 2:1:2:1, and paving and finishing are carried out according to the sequence to ensure that the thickness of the wrapping belt material meets the requirement;
step five, a vulcanization process: vulcanizing the completely paved product by a vulcanizing machine, setting the vulcanization temperature to be 100-200 ℃, and the vulcanization time to be positive vulcanization time, and analyzing a vulcanization curve of the vulcanized product to ensure that the physical performance of the vulcanized product is optimal and the vulcanization efficiency is improved;
when the material is detected by an artificial aging test, the tensile strength retention rate and the elongation at break of the material are kept to be more than 80% at 250 h;
in the fifth step, a vulcanizing instrument is used for carrying out real-time and multiple analyses in the vulcanizing process;
the fluorocarbon material is completely prepared on the outer surface of the composite material, and in the vulcanization process stage, the product is continuously analyzed by a vulcanization instrument to obtain a vulcanization curve, and the proper vulcanization parameters are adjusted for preparation. Through the surface treatment of the composite material, the water resistance, the weather aging resistance, the chemical corrosion resistance and the like of the material are improved, the cleaning capability of the material is enhanced, and the process is simple.
The winding construction method for implementing the winding belt containing the flexible fluorocarbon material comprises the following steps:
firstly, a galvanized steel wire layer 7 is wound outside a main cable steel wire 8; then a special matched and customized oblique winding device is stably installed on the main cable, a winding and wrapping tape coil is added on the oblique winding device, and the oblique winding and wrapping tape coil is sequentially obliquely pressed, laminated, wound and wrapped along the steel wire of the main cable; after the last winding and wrapping tape roll is wound and wrapped, the position and the tension degree of a winding and wrapping tape on the last winding and wrapping tape roll are kept, the tail end of the winding and wrapping tape roll is flattened, the head end of the next winding and wrapping tape roll is cut short, when the direction of a connecting port of the winding and wrapping tape roll is not downward, the head end of the next winding and wrapping tape roll is cut short, the connection port of the winding and wrapping tape roll is ensured to be downward, and rainwater is prevented from permeating in the later operation process;
laminating the head end of the next winding wrapping belt above the tail end of the previous winding wrapping belt, and fixing and bonding; by analogy, until the main cable steel wire is completely wound and covered, the distance between every two diagonal-pulling winding belts is equal, and the distance between every two winding belt coils wound and covered is basically equal;
heating and pressurizing for 24 hr for heating at 90 deg.C and 130 deg.C or below, and heating for 2 cycles (each for about 3 min). The inflation pressure of the heating sleeve is controlled between 20KPa and 30 KPa;
the laminating coverage rate is more than or equal to 52 percent, the winding direction is anticlockwise, so that the head end of the next winding coil is pressed above the tail end of the previous winding coil, and the operation is convenient; gaps between the wrapping belt 6 and the main cable clamps 4 at two ends of the main cable are hermetically connected through a main cable special sealant 5, and the sealant is constructed by purchased polysulfide sealant, so that a good sealing effect is ensured, and the protective performance is further improved.
The invention relates to a wrapping belt containing flexible fluorocarbon material and a manufacturing and winding construction method thereof, wherein a fiber reinforcing net is laid between two layers of rubber film products formed by repeated rubber mixing, a flexible fluorocarbon material layer is laid on the upper layer of the rubber film products, a vulcanizing machine is used for vulcanizing to form a wrapping belt with an integral structure, a galvanized steel wire layer is wound outside a main cable steel wire, the wrapping belt is obliquely wound, laminated and coated outside the galvanized steel wire layer through an oblique winding device, and finally the wrapping belt and the galvanized steel wire layer are hot-melted and coated outside a metal main cable through a heating and pressurizing process, so that the corrosion speed of the metal main cable is reduced, the performance of an external composite material in a metal main cable protection system can be improved, the parameter indexes of the composite material, such as weather resistance, ultraviolet aging resistance, color fastness and the like, are improved, the self-cleaning capability of the protection material is enhanced, and even if the wrapping belt is exposed, In the presence of salt mist and polluted air, the salt mist can continuously bear severe service environments such as fatigue corrosion, metal corrosion, stress corrosion and the like, the protection effect and the service life of the cable-stayed bridge and the suspension bridge are improved, and the spraying construction is not needed.
The invention discloses a wrapping belt product containing a flexible fluorocarbon material and a construction process thereof. The wrapping belt is mainly used in an anticorrosion system of a main cable of a steel cable stayed bridge and a suspension bridge. According to the invention, a certain amount of flexible fluorocarbon raw material is added in the original production and preparation process of the wrapping belt, and the flexible fluorocarbon material is better wrapped on the outer side of the wrapping belt through the processing technologies such as calendering and vulcanization. Under the protection of the flexible fluorocarbon material on the outer surface, the wrapping belt material can better improve the corrosion performance, self-cleaning performance, overlong weather resistance and the like of the wrapping belt material, and can better meet the anti-corrosion protection effect of the main cable of the steel cable stayed bridge and the suspension bridge.
The method is simple, and mainly comprises the steps of completely preparing the fluorocarbon material on the outer surface of the composite material, continuously analyzing a product by a vulcanizer in a vulcanization process stage to obtain a vulcanization curve, and adjusting proper vulcanization parameters to prepare the composite material. By surface treatment of the composite material, the water resistance, weather aging resistance, chemical corrosion resistance and the like of the material are improved, and the cleaning capability of the material is enhanced.
Compared with the prior art, the invention has the following advantages: (1) the wrapping belt composite product containing the fluorocarbon material is prepared through reasonable process parameters, so that the water resistance and the self-cleaning performance of the material are enhanced while the mechanical property and the ultraviolet aging resistance of the product are effectively improved. (2) Provides multiple colors for selection, does not fade, improves the sun protection grade of the material, and ensures that the color fastness effect is better.
This twine construction process of band adopts proprietary to twine the device to twine the construction to one side, will twine the steady installation of device to one side on the main push-towing rope, loads this novel band of twining of a volume, twines the construction for more than 52% according to the stack coverage, when a volume twines the band winding and is about to finish, makes to twine the band and keeps normal position and rate of tension and shakeouts its end. Then, a splicing process is adopted to splice and overlap the next winding and wrapping belt, the head end of the next winding and wrapping belt is cut short, the tail end of the previous winding and wrapping belt and the head end of the next winding and wrapping belt are fixed and bonded together according to the requirement of the folding degree, the equal distance between each inclined-pulling winding belt is ensured, and the distance covered by winding of each winding and wrapping belt is basically equal, as shown in fig. 3.
The heat and pressure process must be performed within 24 hours after the wrapping tape is completely wrapped. According to the bonding characteristics of the novel wrapping tape material, the initial heating temperature is set to 90 ℃, the maximum heating temperature is not more than 130 ℃, and 2 cycles of heating are carried out, wherein the time of each heating cycle is about 3 minutes. The inflation pressure of the heating sleeve is controlled between 20KPa and 30 KPa. And after the heating and pressurizing process is finished, carefully checking the hot melting effect of the wrapping belt and the main cable filament wrapping layer.
Claims (4)
1. A wrapping belt containing flexible fluorocarbon materials is characterized in that: the winding belt comprises a latticed fiber reinforced net layer, wherein a glue applying sheet layer and a lower film layer are respectively arranged above and below the fiber reinforced net layer, a flexible fluorocarbon material layer is further arranged above the glue applying sheet layer, and the flexible fluorocarbon material layer, the glue applying sheet layer, the fiber reinforced net layer and the lower film layer are combined through vulcanization to form the winding belt of the whole structure.
2. The wraparound tape containing a flexible fluorocarbon material according to claim 1, wherein: the upper rubber sheet layer and the lower rubber sheet layer are made of rubber materials formed by repeated rubber mixing.
3. The wraparound tape containing a flexible fluorocarbon material according to claim 1, wherein: the grid specification of the fiber reinforced net layer is 8mm multiplied by 8 mm.
4. The wraparound tape containing a flexible fluorocarbon material according to claim 1, wherein: the total thickness of the flexible fluorocarbon material layer, the upper rubber sheet layer, the fiber reinforced net layer and the lower rubber sheet layer is 1-3 mm.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110126367A (en) * | 2019-04-24 | 2019-08-16 | 镇江蓝舶科技股份有限公司 | A kind of be wrapped band and its manufacture and winding construction method containing flexible fluorocarbon material |
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2019
- 2019-04-24 CN CN201920570896.5U patent/CN211591548U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110126367A (en) * | 2019-04-24 | 2019-08-16 | 镇江蓝舶科技股份有限公司 | A kind of be wrapped band and its manufacture and winding construction method containing flexible fluorocarbon material |
| CN110126367B (en) * | 2019-04-24 | 2024-02-13 | 镇江蓝舶科技股份有限公司 | Winding belt containing flexible fluorocarbon material and manufacturing and winding construction methods thereof |
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