CN101474873A - Technique and equipment for processing reinforced thermoplastic plastic pipe - Google Patents
Technique and equipment for processing reinforced thermoplastic plastic pipe Download PDFInfo
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- CN101474873A CN101474873A CNA2009100369621A CN200910036962A CN101474873A CN 101474873 A CN101474873 A CN 101474873A CN A2009100369621 A CNA2009100369621 A CN A2009100369621A CN 200910036962 A CN200910036962 A CN 200910036962A CN 101474873 A CN101474873 A CN 101474873A
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Abstract
The invention provides a technique and an apparatus for producing a reinforced thermoplastic pipe. The technique comprises the following steps: 1) sending granular PE to a hopper of an extruding machine by negative pressure; 2) heating PE plastic by a first extruding machine, and continuously extruding the PE plastic by a die head with high pressure; 3) cooling the molten PE by water into a PE internal pipe under negative pressure through a vacuum calibrating sleeve of a vacuum water tank; 4) cooling and forming the PE internal pipe continuously in a spray water tank; 5) drying the surface of the PE internal pipe taken from the spray water tank by a first air cooler; 6) pulling the PE internal pipe continuously and stably by a hauling machine which provides power for forming the PE internal pipe; 7) winding a plastic covered reinforcing band made of steel wire or fiber yarn twisted ropes by a winding machine with constant tensile force in opposite directions respectively on the PE internal pipe or the outermost layer of the PE internal pipe; 8) wrapping the molten PE plastic on the outside of the wound reinforcing band through an external composite die head by a second extruding machine to form a wrapped RTP pipe; 9) spraying and cooling to form the wrapped RTP pipe in the water tank; and 10) drying the surface of the RTP pipe taken from the water tank by a second air cooler. The technique is simple and feasible. The apparatus has simple structure, good operating performance and stable and reliable operation.
Description
Technical field
The present invention relates to a kind of combustion gas that is used for, chemical industry, oil, natural gas, the mine, the reinforced thermoplastics pipe that buries field such as ground electric power pipe (is called for short the RTP pipe, RTP-Reinforced ThermoplasticPipes) production technology and equipment belong to the production technology of RTP pipe and the innovative technology of equipment.
Background technology
Existing be used for combustion gas, chemical industry, oil, natural gas, the tubing in field such as ground electric power pipe is buried in the mine, is generally the manufacturing of unitary plastic raw material, and for reaching certain pressure, not only consumptive material is many but also pressure also can't reach very high.For this reason, this method of pressure-bearing that some producers adopts steel wire or the direct winding of filament to strengthen tubing on inner pipe be about respectively twine one deck, the steel wire or the filament of every layer of winding are limited, the RTP pipe can not reach very high burst pressure.In addition, it is difficult for guaranteeing stressed even, is unfavorable for heat-resisting.In addition, the manufacture method of existing multiple tube has a variety of technologies, generally be wrapped in the outer surface of tubing continuously with fiber, fiber on being wrapped in by the thermoplastic pipe of axle rotation after heating and the tension in the tensile force winding process, require the axle rotation on the one hand, for improving bearing capacity, need select the axle that intensity is higher, price is high on the other hand, and require axle through processing preferably, so that increase the processing cost of tubing.
Summary of the invention
The objective of the invention is to consider above-mentioned shortcoming and provide a kind of simple possible, the production technology of the reinforced thermoplastics pipe that production cost is low.
Another object of the present invention is to provide that a kind of handling simple in structure is good, the used equipment of production technology of stable and reliable operation reinforced thermoplastics pipe.
The production technology of reinforced thermoplastics pipe of the present invention includes following steps:
1) granular PE is delivered to the hopper of extruder with negative pressure;
2) first extruder heats the PE plastics, and extrudes by die head continuously with elevated pressures;
3) PE of Rong Huaing is by the vacuum sizing cover of vacuum tank, and water-cooled shaping is to manage in the PE in negative pressure;
4) pipe continues cooling forming at spray tank relaying in the PE;
5) first air-cooler dries up pipe in the PE that takes out from the spray tank with its surface;
6) pipe in the traction PE of hauling machine continous-stable provides the power of managing moulding in the PE;
7) wrapping machine will adopt that steel wire or filament be plied to that rope makes covers and moulds reinforcing band and be wrapped in the opposite direction respectively in the PE on pipe or its outermost layer with constant tension force;
8) second extruder is with the PE plastics that melt, by the outer outside that die head is coated on the reinforcing band that winds, the RTP pipe that the formation coating is good of answering;
9) coat good RTP pipe and in tank, spray cooling forming;
10) second air-cooler dries up the surface of the RTP pipe of taking out from tank with cold wind.
Above-mentioned steps 7) the wherein bonding method of bonding and not bonding dual mode that is combined with of reinforcing band and interior tube-surface wants the caking mode of heating that resistance heated is arranged in the surface of band and tubing when twining, infrared heating, LASER HEATING, the ultrasonic wave heating, flame heat is used electric heater) the interior pipe of preheating PE.
Above-mentioned steps 7) wrapping machine is wrapped in reinforcing band in the PE on pipe or its outermost layer with 54.73 ° of the angles that calculate, and interior pipe is before rectilinear direction and then not rotation, and steel wire or fiber cover to be moulded the reinforcing band rotation and twine on inner pipe.
Above-mentioned steps 10) makes the production mark with ink jet numbering machine on the surface of RTP pipe afterwards; Above-mentioned steps 10) traction of RTP pipe is promptly done in back or provide the power of the winding and the external application of RTP pipe by second hauling machine at ink jet numbering machine after the surface of RTP pipe is done to produce mark.
The above-mentioned RTP pipe of doing traction cuts off the RTP pipe on request by online synchronization cutting mechanism when production reaches certain-length.
The above-mentioned RTP pipe of doing traction is coiled in it on reel by winder; Winder includes two kinds of roller type rolling machine and friction-type rolling machines; The roller type rolling machine must be taken rolling wrapping on the pipeline rolling wheel away after being rolled up pipeline; Friction-type rolling machine rolling wheel diameter is bigger, batches the tubing of length continuously, must transport rolling wheel together during transportation, and after the peace commentaries on classics was laid and finished, rolling wheel recycled and reused.
Above-mentioned steps 2) used extruder is a screw-type extruder.
The used equipment of reinforced thermoplastics pipe production technology of the present invention, it includes first extruder, the vacuum tank, the spray tank, first air-cooler, hauling machine, wrapping machine, second extruder, second air-cooler, wherein vacuum tank and spray tank are installed in the outlet side of first extruder, first air-cooler is installed in the side of spray tank, hauling machine is installed in the side of first air-cooler, wrapping machine is installed in the side of hauling machine, second extruder is installed in the side of wrapping machine, tank is installed in the side of second extruder, and second air-cooler is installed in the side of tank.
The electric heater of pipe in the preheating PE also is housed between above-mentioned hauling machine and the wrapping machine.
The side of above-mentioned second air-cooler also is equipped with the ink jet numbering machine of making the production mark on the surface of RTP pipe; The side of above-mentioned second air-cooler or the side of ink jet numbering machine also are equiped with second hauling machine of the power of winding that the RTP pipe is provided and external application; The side of above-mentioned second hauling machine also is equiped with the synchronization cutting mechanism that cuts off the RTP pipe on request; The side of above-mentioned synchronization cutting mechanism also is equiped with the RTP pipe is coiled in winder on the reel.
The present invention is provided with whole manufacture craft process rationally, dexterously, and it compared with prior art has following advantage:
1) the present invention is when producing the RTP pipe, adopting earlier steel wire or filament to be plied to rope makes to cover and moulds on the interior pipe that reinforcing band is wrapped in the RTP pipe again, can reach very high burst pressure like this, and reinforcing band can be done very longly, winding can be produced the very long continuous RTP pipe of length continuously, can coil supply, reduce a large amount of joints, the reduction expense.
2) the present invention is when twining reinforcing band, interior pipe rotatablely moves before rectilinear direction and then not, steel wire or fiber cover to be moulded reinforcing band rotation and twines reinforcing band 54.73 ° of windings of angle to calculate on inner pipe, can distribute reinforcing band to bear the circumferential pressure and the axial tension of pipeline rationally and effectively.
3) the present invention is when producing the RTP pipe, reinforcing band and interior tube-surface be combined with bonding and not bonding dual mode.For the welding of interlayer, during winding, caking is wanted on the surface of band and tubing, and bonding method has a variety of, as: resistance heated, infrared heating, LASER HEATING, ultrasonic wave heating, flame heat etc.
3) the present invention is when producing the RTP pipe, must take rolling wrapping on the pipeline rolling wheel away after having roller type rolling machine and two kinds of rolling machine roller types of friction-type rolling machine rolling machine to be rolled up pipeline.Friction-type rolling machine rolling wheel diameter is bigger, can batch the tubing of length continuously, must transport rolling wheel together during transportation, after the peace commentaries on classics is laid and is finished, and the recyclable recycling of rolling wheel.
The present invention is that a kind of technical process is simple, the production technology of convenient and practical RTP pipe.The used device structure of the production technology of RTP pipe of the present invention is simple, be easy to control, working stability is reliable.Can satisfy user's user demand with the RTP pipe of the present invention's production.
Description of drawings
Fig. 1 is the process chart of RTP pipe production technology of the present invention;
Fig. 2 is the structural representation of the production technology device therefor of RTP pipe of the present invention.
The specific embodiment
Embodiment:
The production technology of RTP pipe of the present invention includes following steps:
1) granular PE is delivered to the hopper of extruder 1 with negative pressure;
2) first extruder 1 heats the PE plastics, and extrudes by die head continuously with elevated pressures;
3) PE of Rong Huaing is by the vacuum sizing cover of vacuum tank 2, and water-cooled shaping is to manage in the PE in negative pressure;
4) pipe continues cooling forming in the PE in spray tank 3;
5) first air-cooler 4 dries up pipe in the PE that takes out from the spray tank with its surface;
6) pipe in the traction PE of hauling machine 5 continous-stables provides the power of managing moulding in the PE;
7) wrapping machine 6 will adopt that steel wire or filament be plied to that rope makes covers and moulds reinforcing band and be wrapped in the opposite direction respectively in the PE on pipe or its outermost layer with constant tension force;
8) second extruder 7 is with the PE plastics that melt, by the outer outside that die head is coated on the reinforcing band that winds, the RTP pipe that the formation coating is good of answering;
9) coat good RTP pipe and in tank 8, spray cooling forming;
10) second air-cooler, 9 cold wind dry up the surface of the RTP pipe of taking out from tank.
Above-mentioned steps 7) the wherein bonding method of bonding and not bonding dual mode that is combined with of reinforcing band and interior tube-surface wants the caking mode of heating that resistance heated is arranged in the surface of band and tubing when twining, infrared heating, LASER HEATING, the ultrasonic wave heating, flame heat is used pipe in the electric heater preheating PE.
Above-mentioned steps 7) wrapping machine 6 is wrapped in reinforcing band in the PE on pipe or its outermost layer with 54.73 ° of the angles that calculate, and interior pipe is before rectilinear direction and then not rotation, and steel wire or fiber cover to be moulded the reinforcing band rotation and twine on inner pipe.
Above-mentioned steps 10) makes the production mark with ink jet numbering machine 10 on the surface of RTP pipe afterwards; Above-mentioned steps 10) traction of RTP pipe is promptly done in back or provide the power of the winding and the external application of RTP pipe by second hauling machine 11 at ink jet numbering machine after the surface of RTP pipe is done to produce mark.
The above-mentioned RTP pipe of doing traction cuts off the RTP pipe on request by online synchronization cutting mechanism 12 when production reaches certain-length.
Use for the convenience of the user, the above-mentioned RTP pipe of doing traction is coiled in it on reel by winder 13; Winder 13 includes two kinds of roller type rolling machine and friction-type rolling machines; The roller type rolling machine must be taken rolling wrapping on the pipeline rolling wheel away after being rolled up pipeline; Friction-type rolling machine rolling wheel diameter is bigger, batches the tubing of length continuously, must transport rolling wheel together during transportation, and after the peace commentaries on classics was laid and finished, rolling wheel recycled and reused.
In the present embodiment, above-mentioned steps 2) used extruder is a screw-type extruder.
The used equipment of reinforced thermoplastics pipe production technology of the present invention, it includes first extruder 1, vacuum tank 2, spray tank 3, first air-cooler 4, hauling machine 5, wrapping machine 6, second extruder 7, tank 8, second air-cooler 9, wherein vacuum tank 2 and spray tank 3 are installed in the outlet side of first extruder 1, first air-cooler 4 is installed in the side of spray tank 3, hauling machine 5 is installed in the side of first air-cooler 4, wrapping machine 6 is installed in the side of hauling machine 5, second extruder 7 is installed in the side of wrapping machine 6, tank 8 is installed in the side of second extruder 7, and second air-cooler 9 is installed in the side of tank 8.
In the present embodiment, the electric heater of pipe in the preheating PE is housed also between above-mentioned hauling machine 5 and the wrapping machine 6.
In addition, the side of above-mentioned second air-cooler 9 also is equipped with the ink jet numbering machine 10 of making the production mark on the surface of RTP pipe; The side of the side of above-mentioned second air-cooler 9 or ink jet numbering machine 10 also is equiped with second hauling machine 11 of the power of winding that the RTP pipe is provided and external application; The side of above-mentioned second hauling machine 11 also is equiped with the synchronization cutting mechanism 12 that cuts off the RTP pipe on request; The side of above-mentioned synchronization cutting mechanism 12 also is equiped with the RTP pipe is coiled in winder 13 on the reel.
Claims (10)
1, a kind of production technology of reinforced thermoplastics pipe is characterized in that including following steps:
1) granular PE is delivered to the hopper of extruder (1) with negative pressure;
2) first extruder (1) heats the PE plastics, and extrudes by die head continuously with elevated pressures;
3) PE of Rong Huaing is by the vacuum sizing cover of vacuum tank (2), and water-cooled shaping is to manage in the PE in negative pressure;
4) pipe continues cooling forming in the PE in spray tank (3);
5) first air-cooler (4) dries up pipe in the PE that takes out from the spray tank with its surface;
6) pipe in the traction PE of hauling machine (5) continous-stable provides the power of managing moulding in the PE;
7) wrapping machine (6) will adopt that steel wire or filament be plied to that rope makes covers and moulds reinforcing band and be wrapped in the opposite direction respectively in the PE on pipe or its outermost layer with constant tension force;
8) second extruder (7) is with the PE plastics that melt, by the outer outside that die head is coated on the reinforcing band that winds, the RTP pipe that the formation coating is good of answering;
9) coat good RTP pipe and in tank (8), spray cooling forming;
10) second air-cooler (9) dries up the surface of the RTP pipe of taking out from tank with cold wind.
2, the production technology of reinforced thermoplastics pipe according to claim 1, it is characterized in that above-mentioned steps 7) reinforcing band and interior tube-surface be combined with bonding and not bonding dual mode, wherein bonding method is with when twining and caking is wanted on the surface of tubing, mode of heating has resistance heated, infrared heating, LASER HEATING, ultrasonic wave heating, flame heat is used pipe in the electric heater preheating PE.
3, the production technology of reinforced thermoplastics pipe according to claim 1, it is characterized in that above-mentioned steps 7) wrapping machine (6) reinforcing band is wrapped in the PE on pipe or its outermost layer with 54.73 ° of the angles that calculate, interior pipe rotates before rectilinear direction and then not, and steel wire or fiber cover moulds reinforcing band rotation winding on inner pipe.
4, the production technology of reinforced thermoplastics pipe according to claim 3 is characterized in that above-mentioned steps 10) use ink jet numbering machine (10) to make the production mark afterwards on the surface of RTP pipe; Above-mentioned steps 10) traction of RTP pipe is promptly done in back or provide the power of the winding and the external application of RTP pipe by second hauling machine (11) at ink jet numbering machine after the surface of RTP pipe is done to produce mark.
5, the production technology of reinforced thermoplastics pipe according to claim 4 is characterized in that the above-mentioned RTP pipe of doing traction cuts off the RTP pipe on request by online synchronization cutting mechanism (12) when production reaches certain-length.
6, the production technology of reinforced thermoplastics pipe according to claim 5 is characterized in that the above-mentioned RTP pipe of doing traction is coiled in it on reel by winder (13); Winder (13) includes two kinds of roller type rolling machine and friction-type rolling machines; The roller type rolling machine must be taken rolling wrapping on the pipeline rolling wheel away after being rolled up pipeline; Friction-type rolling machine rolling wheel diameter is bigger, batches the tubing of length continuously, must transport rolling wheel together during transportation, and after the peace commentaries on classics was laid and finished, rolling wheel recycled and reused.
7, the production technology of reinforced thermoplastics pipe according to claim 6 is characterized in that above-mentioned steps 2) used extruder is screw-type extruder.
8, a kind of according to the used equipment of the described reinforced thermoplastics pipe of claim 1 production technology, it is characterized in that including first extruder (1), vacuum tank (2), spray tank (3), first air-cooler (4), hauling machine (5), wrapping machine (6), second extruder (7), tank (8), second air-cooler (9), wherein vacuum tank (2) and spray tank (3) are installed in the outlet side of first extruder (1), first air-cooler (4) is installed in the side of spray tank (3), hauling machine (5) is installed in the side of first air-cooler (4), wrapping machine (6) is installed in the side of hauling machine (5), second extruder (7) is installed in the side of wrapping machine (6), tank (8) is installed in the side of second extruder (7), and second air-cooler (9) is installed in the side of tank (8).
9, the used equipment of reinforced thermoplastics pipe production technology according to claim 8 is characterized in that also being equipped with between above-mentioned hauling machine (5) and the wrapping machine (6) electric heater of pipe in the preheating PE.
10, the used equipment of reinforced thermoplastics pipe production technology according to claim 9 is characterized in that the side of above-mentioned second air-cooler (9) also is equipped with the ink jet numbering machine (10) of making the production mark on the surface of RTP pipe; The side of the side of above-mentioned second air-cooler (9) or ink jet numbering machine (10) also is equiped with second hauling machine (11) of the power of winding that the RTP pipe is provided and external application; The side of above-mentioned second hauling machine (11) also is equiped with the synchronization cutting mechanism (12) that cuts off the RTP pipe on request; The side of above-mentioned synchronization cutting mechanism (12) also is equiped with the RTP pipe is coiled in winder (13) on the reel.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100369621A CN101474873A (en) | 2009-01-23 | 2009-01-23 | Technique and equipment for processing reinforced thermoplastic plastic pipe |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100369621A CN101474873A (en) | 2009-01-23 | 2009-01-23 | Technique and equipment for processing reinforced thermoplastic plastic pipe |
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| CN101474873A true CN101474873A (en) | 2009-07-08 |
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| CNA2009100369621A Pending CN101474873A (en) | 2009-01-23 | 2009-01-23 | Technique and equipment for processing reinforced thermoplastic plastic pipe |
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| CN101927574A (en) * | 2009-12-30 | 2010-12-29 | 上海英泰塑胶有限公司 | Manufacturing method of isomorphous structural self-bonding glass fiber reinforced plastic pipe |
| CN102225622A (en) * | 2011-05-26 | 2011-10-26 | 浙江伟星新型建材股份有限公司 | Production apparatus and extrusion technology of novel clad pipe |
| CN102235555A (en) * | 2011-04-18 | 2011-11-09 | 李长城 | Method for producing continuous fiber reinforced plastic composite pipeline and pipeline produced thereby |
| CN102814883A (en) * | 2012-09-19 | 2012-12-12 | 南通超达机械科技有限公司 | Manufacturing process for heat insulating layer of foaming mould |
| CN103501989A (en) * | 2011-03-03 | 2014-01-08 | 埃尔波仁国际有限公司 | Method for manufacturing continuous composite tube, apparatus for manufacturing continuous composite tube |
| CN103629452A (en) * | 2013-11-06 | 2014-03-12 | 泰州雅美雨和新材料有限公司 | Method for forming reinforced ultra-high molecular weight polyethylene pipe core and steel wires |
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| CN104976444A (en) * | 2014-04-14 | 2015-10-14 | 莱芜市长江塑料制品有限公司 | PET strengthened composite pipe and preparing method thereof |
| CN105987237A (en) * | 2015-01-30 | 2016-10-05 | 林世平 | High-strength pipe made by thermoplastic continuous fiber prepreg tapes and manufacturing method and manufacturing equipment |
| CN107160663A (en) * | 2017-06-30 | 2017-09-15 | 吉林省长光瑞思激光技术有限公司 | The preparation method and making apparatus of a kind of new carat pipe |
| CN107775970A (en) * | 2016-08-30 | 2018-03-09 | 林世平 | Equipment and its application method for the production of thermoplastic continuous fibers' prepreg tape tubing |
| CN108215237A (en) * | 2018-02-26 | 2018-06-29 | 蒋丰亮 | A kind of material for PE heavy caliber fiber reinforcement pipelines squeezes out and molding press device |
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| CN112060527A (en) * | 2020-09-14 | 2020-12-11 | 余储 | Automatic change plastics tubular product production and processing equipment |
| CN112495175A (en) * | 2020-10-22 | 2021-03-16 | 聂鹏飞 | Spray pipeline connecting device for desulfurization |
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2009
- 2009-01-23 CN CNA2009100369621A patent/CN101474873A/en active Pending
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| CN103501989B (en) * | 2011-03-03 | 2016-01-13 | Ao&G控股有限公司 | For the manufacture of the method for continuous composite material pipe, the equipment for the manufacture of continuous composite material pipe |
| CN103501989A (en) * | 2011-03-03 | 2014-01-08 | 埃尔波仁国际有限公司 | Method for manufacturing continuous composite tube, apparatus for manufacturing continuous composite tube |
| CN102235555A (en) * | 2011-04-18 | 2011-11-09 | 李长城 | Method for producing continuous fiber reinforced plastic composite pipeline and pipeline produced thereby |
| CN102235555B (en) * | 2011-04-18 | 2013-07-31 | 李长城 | Method for producing continuous fiber reinforced plastic composite pipeline and pipeline produced thereby |
| CN102225622A (en) * | 2011-05-26 | 2011-10-26 | 浙江伟星新型建材股份有限公司 | Production apparatus and extrusion technology of novel clad pipe |
| CN102225622B (en) * | 2011-05-26 | 2013-08-07 | 浙江伟星新型建材股份有限公司 | Production apparatus and extrusion technology of novel clad pipe |
| CN102814883A (en) * | 2012-09-19 | 2012-12-12 | 南通超达机械科技有限公司 | Manufacturing process for heat insulating layer of foaming mould |
| CN103629452A (en) * | 2013-11-06 | 2014-03-12 | 泰州雅美雨和新材料有限公司 | Method for forming reinforced ultra-high molecular weight polyethylene pipe core and steel wires |
| CN103629452B (en) * | 2013-11-06 | 2016-03-09 | 泰州雅美雨和新材料有限公司 | A kind of method strengthening superhigh molecular weight polyethylene pipe core and steel wire shaping |
| CN104976444A (en) * | 2014-04-14 | 2015-10-14 | 莱芜市长江塑料制品有限公司 | PET strengthened composite pipe and preparing method thereof |
| CN104976444B (en) * | 2014-04-14 | 2019-09-10 | 莱芜市长江塑料制品有限公司 | PET reinforced composite pipe material and preparation method thereof and connection method |
| CN103978710A (en) * | 2014-06-03 | 2014-08-13 | 保定建强制动软管有限公司 | Method and device for producing hydraulic braking hose of electric bicycle |
| CN105987237A (en) * | 2015-01-30 | 2016-10-05 | 林世平 | High-strength pipe made by thermoplastic continuous fiber prepreg tapes and manufacturing method and manufacturing equipment |
| CN105987237B (en) * | 2015-01-30 | 2019-07-19 | 林世平 | The high-strength pipe of thermoplastic continuous fibers prepreg tape and its manufacturing method and manufacturing equipment |
| CN107775970A (en) * | 2016-08-30 | 2018-03-09 | 林世平 | Equipment and its application method for the production of thermoplastic continuous fibers' prepreg tape tubing |
| CN107160663A (en) * | 2017-06-30 | 2017-09-15 | 吉林省长光瑞思激光技术有限公司 | The preparation method and making apparatus of a kind of new carat pipe |
| CN107160663B (en) * | 2017-06-30 | 2020-06-19 | 吉林省长光瑞思激光技术有限公司 | Manufacturing method and manufacturing equipment of novel krah pipe |
| CN108215237A (en) * | 2018-02-26 | 2018-06-29 | 蒋丰亮 | A kind of material for PE heavy caliber fiber reinforcement pipelines squeezes out and molding press device |
| CN112071631A (en) * | 2020-08-25 | 2020-12-11 | 苏州麦格尼特新技术有限公司 | Method for winding saddle-shaped coil based on semi-cured epoxy ultrasonic rapid bonding |
| CN112060527A (en) * | 2020-09-14 | 2020-12-11 | 余储 | Automatic change plastics tubular product production and processing equipment |
| CN112495175A (en) * | 2020-10-22 | 2021-03-16 | 聂鹏飞 | Spray pipeline connecting device for desulfurization |
| CN112495175B (en) * | 2020-10-22 | 2022-06-10 | 河北大唐国际王滩发电有限责任公司 | Spray pipeline connecting device for desulfurization |
| CN112793116A (en) * | 2020-12-15 | 2021-05-14 | 咸阳新德安新材料科技有限公司 | Processing equipment and process for large-pipe-diameter flexible composite high-pressure conveying pipe |
| CN116274757A (en) * | 2023-04-17 | 2023-06-23 | 和峻（广州）胶管有限公司 | High-speed production control system for steel wire winding pipe |
| CN116274757B (en) * | 2023-04-17 | 2023-10-17 | 和峻（广州）胶管有限公司 | High-speed production control system for steel wire winding pipe |
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