CN1844722A - Plastic pipe enhanced by continuous fiber winding - Google Patents
Plastic pipe enhanced by continuous fiber winding Download PDFInfo
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- CN1844722A CN1844722A CN 200510063209 CN200510063209A CN1844722A CN 1844722 A CN1844722 A CN 1844722A CN 200510063209 CN200510063209 CN 200510063209 CN 200510063209 A CN200510063209 A CN 200510063209A CN 1844722 A CN1844722 A CN 1844722A
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Abstract
The invention relates to a plastic tube which uses long fiber (glass fiber, carbon fiber, and metallic fiber) to strengthen the thermal plastic (polythene, polypropylene, and rigid polyvinyl chloride) to coil and shape a plastic tube whose diameter is 4m, while the pressure can reach 1.2MPa, and the thickness is lower than general tubes, with high strength (stress strength can reach 20-30MPa), lower cost and light weight. The invention can be used to pressure transmit the tap water. The method for coating long fiber with adhesive is similar to the one for extruding wire, that coating the adhesive on the fiber to be coiled on the plastic tube with bottom layer, or online extruding coating to be coiled on one heated cylinder stainless steel core, to attain said continuous long fiber strengthen thermal plastic.
Description
Technical field
The present invention relates to the technology of a kind of employing continuous fiber (comprising glass fibre, carbon fiber, steel fiber) pipe winded with reinforced plastic.This tubing can be made into the plastic tube until 4 rice diameters, can be used for the pressure conveying of water or other fluid from the beginning.
Background technique
Along with China's rapid development of economy, in the infrastructure investment of pipework more and more big, the consumption of various pipes grows with each passing day, and has become the important component part of state fundamental construction, also is city and industrial lifeblood.
At present, the pressure-feed tubing kind of the water or other fluid from the beginning of domestic employing is a lot, mainly contains: plain cast iron pipe (IP), steel pipe (SP), prestressed reinforced concrete pipe (PCCP), ductile iron pipe (DIP), Glass Steel Tube (FRP, FGP or GRP), cylinder concrete pipe (DIP), hard polvinyl choride pipe (UP-VC) and polyethylene pipe (PE) etc.All these tubing in use all have certain narrow limitation, exist technological deficiency and economic performance problem, are subjected to the restriction of corresponding service condition.At the large-bore plastics pipeline, Germany carat company adopts world's advanced technology to produce high-quality plastic tube---and " large-bore plastics pipeline ", because of its superior physics and chemical characteristics have obtained being familiar with fast and promoting.
The high density polyethylene (HDPE) heavy-caliber plastic pipe of Germany carat company is divided into two big classes: 1) unpressurized plastics are strengthened pipeline, are called for short the PKS pipe, are mainly used in the conveying of unconfined flow body, as urban sewage pipe etc.; 2) plastic pressure pipeline is called for short the KPPS pipe, is mainly used in pressurized fluid and carries, as the tap water conveying etc.Because PKS and KPPS pipeline all are to be that raw material is made with HDPE, so series of advantages such as pipeline has chemical stability good (corrosion-resistant), flow resistance is little, toughness is good, good springiness, in light weight, easy construction, construction joint are fast.
The KPPS pipeline is that the high density polyethylene that adopts the short fibre of proper proportion to strengthen is a raw material, by reciprocal canoe make can bear in press the pipeline of 1.0MPa (or higher).Owing to mixed glass fibre in the material, the tensile breaking strength of pipeline is improved greatly, the ring stiffness of pipeline is also greatly improved, and the manufacture cost of pipeline reduces greatly.The cost of material of this pipeline is more cheap than steel pipe and the plastic tube produced in direct extrusion molding mode, and very big market potential is arranged.
Germany carat joint-stock company has successfully solved the agricultural technology problem of large-bore plastics pressure piping.Can make the large-bore plastics pressure piping that satisfies water delivery gas transmission oil transportation requirement with DR-700 plastic pressure pipe pipeline production line, its working pressure can reach 1.2MPa, diameter 300mm-4000mm.Owing to used the short glass fiber reinforced composite, the cost of pipeline is reduced greatly, be lower than steel pipe 10%, be lower than the plastic pressure pipeline 50% that the extrusion molding mode is produced.
Large-bore plastics pressure tube-KPPS pipe is made with canoe, in the plastic pipe manufacture process, batch is delivered to extruder from feed bin, in extruder, be heated, plasticizing, homogenizing be after runner, mouthful mould, the flat strip or the arc strip of difference extruding and moulding, equidistantly be wrapped in the die surface that is turning round, the high density polyethylene (HDPE) raw material of fusing is wound on the cylinder type stainless steel core body that has heated with ribbon spiral ground, thereby formation has highi degree of accuracy inner diameter and uniform and smooth inner tubal wall.
Germany carat joint-stock company makes the raw materials used high-density polyethylene material for the short fibre enhancing of pressure-bearing wrapped tube, wherein the length of fiber is not more than 0.7mm, the PE160 that is divided into according to the pipe material grade, in other words at 20 ℃, under the nominal pressure operational condition, the stress intensity in 50 years of continuous operation can reach 16MPa.
Summary of the invention
Major character of the present invention is to adopt continuous fiber to strengthen thermoplastics such as high density polyethylene (HDPE), polypropylene and PVC, Wrapping formed manufacturing pressure-bearing plastic tube, heavy-caliber plastic pipe particularly, design pressure can reach 1.2MPa, the wall thickness of the comparable similar plastic tube of design wall thickness reduces 10～50%, have the intensity height (can reach stress intensity and be 20～30MPa), cost is low, the characteristics of light weight.
The fiber of continuous fiber reinforced thermoplastic plastic tube can adopt glass fibre, carbon fiber, steel fiber etc.For glass fibre, available alkali-free or medium-alkali glass fibre, handle through silane coupler on the surface, and fiber diameter is 0.010～0.020mm, and the plying tow is 1000 more than the monofilament; Surface treatment method for carbon fiber and steel fiber is basic identical.Thermoplastic adopts has the high density polyethylene (HDPE) that grade is PE63, PE 80 and PE 100; Grade is that PPB, PPR and the grade of PP 80 is the materials such as PVC-U of PVC 120.The compatibilizer that combines with fiber (Bond) adopts high density polyethylene (HDPE), LLDPE and the ethene of maleic anhydride graft remodeling and the copolymer (EVA) of acrylic acid copolymer (EAA), ethene and vinyl acetate etc.The manufacturing of the complex fiber material of continuous fiber reinforced thermoplastic plastics adopts the method for extruding coating that fiber is coated the above-mentioned binder material of one deck in the periphery of fiber simultaneously by cable head (mould) continuously.
The technology of continuous fiber coating Bond can adopt to be similar to extrudes the same technology of electric wire, Bond is coated on the lamination coating outside, and then be wound on the plastic tube that bottom is arranged, it also can be the online compound coating of extruding, be wound on the spot on the cylinder type stainless steel core rod that has heated, stack layer by layer, thus continuous fiber reinforced thermoplastic plastic winding tube formed with regulation internal diameter and uniform and smooth inner tubal wall.Fiber in material shared volume fraction 5～50%.
50 years long-term working pressures of tubing of making of method can reach 1.2MPa or higher thus, or under the state of 1MPa working pressure, wall thickness are significantly reduced.According to long stapled volume fraction, can be designed to stress is 20～25MPa or more high-grade material.
The thermoplastic pipes diameter that adopts this method to twine can be at 100～4000mm, and being specially adapted to diameter is the pressure-bearing transmission ﹠ distribution hydro-thermal thermoplastic plastic pipe of 300～4000mm.
Description of drawings
Fig. 1. the fibre-coated schematic cross-section of continuous fiber reinforced thermoplastic plastic tube
Fig. 2. the continuous fiber reinforced thermoplastic plastic tube is extruded winding process figure
Fig. 3. continuous fiber reinforced thermoplastic plastic tube sectional view
Embodiment
Embodiment one
Continuous glass-fiber is applied head through electric wire be extruded into as shown in Figure 1 composite wire, glass fibre 1 is an alkali-free E glass, diameter 0.013mm, tow is by 2000 monofilament Split Down, handle through silane coupler on the surface, glass fibre coating material 2 is ethylene-vinyl acetate copolymer (EVA18/3), and coating thickness is 0.2mm.Wire stretching intensity after the coating is 280MPa.Be to apply the high density polyethylene (HDPE) bottom in advance on the stainless steel drum of 1000mm at diameter, and then use the heating source area of heating surface, this glass fibre wire rod that applies EVA on this layer tubing, and then is covered a hdpe layer material (PE80 level), repeat 4 times, reach wall thickness 40mm.
Gained pipe internal diameter 1000mm, wall thickness 40mm, pressure test pressure 3.0MPa passes through.According to Stress calculation, material rate is PE200.
Embodiment two
Continuous glass-fiber is applied head through electric wire be extruded into as shown in Figure 2 composite wire, glass fibre 1 is an alkali-free E glass, diameter 0.013mm, tow is by 2000 monofilament Split Down, handle through silane coupler on the surface, and coating material 2 is graft modification HDPE6100M, and coating thickness is 2.0mm.Wire rod after the coating is on the stainless steel drum of 1000mm around diameter directly, and then uses the heating source area of heating surface, covers layer by layer again, repeats repeatedly to reach 40mm up to wall thickness.
Gained pipe internal diameter 1000mm, wall thickness 40mm, pressure test pressure 3.0MPa passes through.According to Stress calculation, material rate is PE250.
Embodiment three
Continuous glass-fiber is applied head through electric wire be extruded into as shown in Figure 1 composite wire, glass fibre 1 is an alkali-free E glass, diameter 0.013mm, tow is by 2000 monofilament Split Down, handle through silane coupler on the surface, glass fibre coating material 2 is ethylene acrylic acid co polymer EAA, and coating thickness is 0.2mm.Wire stretching intensity after the coating is 280MPa.Be to apply the high density polyethylene (HDPE) bottom in advance on the stainless steel drum of 1000mm at diameter, and then use the heating source area of heating surface, with this glass fibre wire rod that applies EAA on this layer tubing, and then cover a hdpe layer material HDPE6100M, repeat winding and reach 40mm until wall thickness.
Gained pipe internal diameter 1000mm, wall thickness 40mm, pressure test pressure 3.0MPa passes through.According to Stress calculation, material rate is PE200.
Embodiment four
Long carbon fiber is applied head through electric wire be extruded into as shown in Figure 1 composite wire, carbon fiber 1 diameter 0.013mm, tow are by 2000 monofilament Split Down, and handle through silane coupler on the surface, coating material 2 is ethylene acrylic acid co polymer (EAA), and coating thickness is 0.2mm.Be to apply the high density polyethylene (HDPE) bottom in advance on the stainless steel drum of 1000mm at diameter, and then use the heating source area of heating surface, with this carbon fiber composite wire that applies EAA on this layer tubing, and then cover a hdpe layer material HDPE6100M, repeat winding and reach 30mm until wall thickness.
Gained pipe internal diameter 1000mm, wall thickness 30mm, pressure testing test pressure 3.0MPa do not have leakage and are out of shape.
Claims (5)
1. technology that adopts plastic pipe enhanced by continuous fiber winding.It is characterized in that adopting plastic pipe enhanced by continuous fiber winding, this tubing can be made into bigbore plastic tube, can be used for the conveying of the water or other fluid from the beginning of pressure-bearing 1～1.2MPa.
2. continuous fiber according to claim 1 comprises glass fibre, carbon fiber, steel fiber etc.Continuous fiber uses in the mode of boundling, and monofilament diameter is 0.010～0.100mm, and the collection monofilament becomes thigh, contains the monofilament radical at 10～10000.
3. continuous fiber winding plastic tubing according to claim 1 is characterized in that described tubing refers in particular to thermoplastic pipes, comprises polyethylene, polypropylene, polychloroethylene pipes etc.
4. plastic pipe enhanced by continuous fiber winding according to claim 1 is characterized in that, adopts and extrudes the continuous fiber composite material of coating, is wrapped in the plastic tube as the mesosphere; Perhaps adopt and onlinely extrude coating and be wrapped on the spot on the cylinder type stainless steel core rod body that has heated, thereby form reinforced plastic pipe with the stable and uniform and smooth inner tubal wall of Inner Dimension.
5. the dimensional range of plastic pipe enhanced by continuous fiber winding according to claim 1 is at 100～4000mm, and optimum is at 300～4000mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510063209 CN1844722A (en) | 2005-04-07 | 2005-04-07 | Plastic pipe enhanced by continuous fiber winding |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510063209 CN1844722A (en) | 2005-04-07 | 2005-04-07 | Plastic pipe enhanced by continuous fiber winding |
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| CN1844722A true CN1844722A (en) | 2006-10-11 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101480838B (en) * | 2009-01-23 | 2011-03-16 | 李志雄 | Technique and equipment for producing reinforcing band |
| CN102172983A (en) * | 2011-01-25 | 2011-09-07 | 谭江南 | Production method of steel plastic concrete composite wound pipe |
| CN102679047A (en) * | 2012-05-17 | 2012-09-19 | 武汉理工大学 | Continuous filament wound and reinforced thermoplastic pipe and manufacturing process thereof |
| CN105153542A (en) * | 2015-08-31 | 2015-12-16 | 苏州莱特复合材料有限公司 | Automotive interior composite material and preparation method thereof |
| CN107815620A (en) * | 2017-10-27 | 2018-03-20 | 北京科技大学 | One kind adds the deformable composite wire of spiral long fiber reinforcement Metal Substrate |
-
2005
- 2005-04-07 CN CN 200510063209 patent/CN1844722A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101480838B (en) * | 2009-01-23 | 2011-03-16 | 李志雄 | Technique and equipment for producing reinforcing band |
| CN102172983A (en) * | 2011-01-25 | 2011-09-07 | 谭江南 | Production method of steel plastic concrete composite wound pipe |
| CN102679047A (en) * | 2012-05-17 | 2012-09-19 | 武汉理工大学 | Continuous filament wound and reinforced thermoplastic pipe and manufacturing process thereof |
| CN102679047B (en) * | 2012-05-17 | 2014-07-02 | 武汉理工大学 | Continuous filament wound and reinforced thermoplastic pipe and manufacturing process thereof |
| CN105153542A (en) * | 2015-08-31 | 2015-12-16 | 苏州莱特复合材料有限公司 | Automotive interior composite material and preparation method thereof |
| CN107815620A (en) * | 2017-10-27 | 2018-03-20 | 北京科技大学 | One kind adds the deformable composite wire of spiral long fiber reinforcement Metal Substrate |
| CN107815620B (en) * | 2017-10-27 | 2019-06-25 | 北京科技大学 | A kind of deformable composite wire of addition spiral long fiber reinforcement Metal Substrate |
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