CN2483579Y - Spiral winded steel wire reinforced plastic composite tube - Google Patents
Spiral winded steel wire reinforced plastic composite tube Download PDFInfo
- Publication number
- CN2483579Y CN2483579Y CN 01247511 CN01247511U CN2483579Y CN 2483579 Y CN2483579 Y CN 2483579Y CN 01247511 CN01247511 CN 01247511 CN 01247511 U CN01247511 U CN 01247511U CN 2483579 Y CN2483579 Y CN 2483579Y
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- steel wire
- steel
- pipe
- plastic composite
- continuum
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Abstract
The utility model provides a steel-plastic composite pipe of the spiral winding steel wire reinforced body, comprising a polymer continuum located in the pipe wall. The characteristics are that at least one steel wire with the surface provided with an adhesive structural layer formed by adhesive or adhesive and the polymer blends to levo rotate and/ or dextral rotate to form the reinforced body, the reinforced body is arranged inside the polymer continuum and the steel wires is made to fixedly compound with the polymer continuum into integrity through the adhesive structural layer. The inner pressure resistance is high and the application area is wide.
Description
Technical field:
The utility model relates to a kind of steel-plastic composite pipe, particularly be the steel-plastic composite pipe that a kind of spiral wound steel wire strengthens body.
Background technique:
The production of pure plastic pipe and application have had the experience of decades, pure plastic pipes such as, poor heat stability big for the environmental aging that overcomes and solve pure plastic pipe, ring stress index serviceability temperature rising working pressure reduction coefficient low, pipe and environment stress cracking use weakness and use a difficult problem, and people have done many improvement on the production technology of plastic tube.Such as in soft polyvinyl chloride pipe is produced, on the outer wall of core pipe, do a left side with wire or chemical fibre or glass fiber, dextrorotation is twined to spiral increases one deck structure net, then at the compound more on the net one deck outer tube of extruding of structure, form three-decker, make enhancement layer with the structure stratum reticulare, reach the purpose of gaining in strength, these three layers do not combine, not the composite material of real meaning: again such as in polyolefin pipe is produced, the internal layer outer pipe wall of formerly extruding cooling is with above-mentioned similar method, twine inner tube with the steel wire spiral, steel wire and inner tube outer wall are being heated simultaneously, extruding external pipe again clads steel wire floor, produce welding with the inner tube outer wall simultaneously, this method, than said method progress has been arranged, at least 3 layers fuse together, there is internal layer to make bearing course, there is steel wire floor to make enhancement layer, can bear the medium transport pressure higher than internal layer, skin not only can play supplementary function to intensity, the more important thing is that can utilize skin to carry out packing into the welding of line pipe road by two logical weldings between the tube and tube connects, above-mentioned these two kinds of pipelines are sold on market, but they are not composite materials truly.Wire, chemical fibre, glass fiber and steel wire as the structure enhancing, all do not have to produce bonding and it is become one at the interface that cladding face contacts with the polymer continuum of making pipeline, the mechanical strength and the complementary physical property of compound two kinds of materials for one can not be combined comprehensive performance.When using and testing above-mentioned two kinds of pipelines, it obviously is stressed separately strengthening net, not compound and produce composite force with continuum.When inner tube is subjected to the internal pressure effect and expands, cancellated enhancing net also expands thereupon, do not utilize its composite structure characteristics and stop the further expansion of inner wall tube, when internal pressure is promptly encircled on the intensity level that stress arrives inner wall tube greatly, because of pure plastic pipe elongation at break height to percent hundreds of, when this moment, inner wall tube also was unlikely to break, strengthen net and originally can play the collaborative effect that stops tube swelling, but because of strengthening net is not compound for one with continuum, strengthens net and can obviously see it being to slide producing displacement with the expansion of pipe in continuum.Can be described as that collaborative to have strengthened part stressed, but the contribution rate that strengthens net is only 10～20%, promptly only calculate and improve 10～20%, if by strengthening net really by compound and Intensity Design that should increase should improve ring stress explosion value 50～100% than pure plastic pipe than pure plastic pipe ring stress burst strength value.As seen strengthen the function that net does not play composite material.Reflect the above fact also in a large number in application of practical project.Particularly above-mentioned duct products, it is polyolefin outer wall of inner tube spiral wound steel wire, in the compound external pipe of extruding of its steel wire floor, this pipe is when using and test, when inner wall tube during in stressed expansion, in the elongation at break scope, the broadwise steel wire because of stressed in company with expanding, even the phenomenon that steel wire slides in continuum and can not stop inner wall tube to expand appears, the enhancing body effect of steel wire is not fully exerted.
The model utility content:
The purpose of this utility model is in order to overcome above deficiency, a kind of interior bearing capacity height to be provided, the steel-plastic composite pipe of the spiral wound steel wire enhancing body that using scope is wide.
The purpose of this utility model is achieved like this:
The utility model spiral wound steel wire strengthens the steel-plastic composite pipe of body, comprise the polymer continuum that is arranged in tube wall, it is characterized in that having by at least one surface having the steel wire of the adhesive structure layer that Bond or Bond and blend polymer form to do that left-handed and/or dextrorotation is twined and the enhancing body that forms, strengthen body place the polymer continuum and by the adhesive structure layer make steel wire and polymer continuum firm compound be one.
The adjacent wires that spiral twines in the above-mentioned enhancing body abuts against together.
The adjacent wires that spiral twines in the above-mentioned enhancing body is separated.
The above-mentioned enhancing body that is aggregated the coating of thing continuum that has the steel wire spiral of adhesive structure layer to twine formation with the surface is the interface, and its interior pipe layer and external tube layer are that the polymer material of employing different performance and form is made.
Adopted the surface to have the steel wire of adhesive structure layer to do that spiral twines and the enhancing body that forms in the utility model steel-plastic composite pipe, strengthened body and make steel wire and polymer continuum compound by the adhesive structure layer to be one, to have improved the interior bearing capacity of tube wall greatly.
Bearing capacity height in the utility model steel-plastic composite pipe, using scope is wide.
Description of drawings:
Fig. 1 is the utility model embodiment 1 structural representation.
Fig. 2 is for strengthening the body structure schematic representation.
Fig. 3 is the utility model embodiment 2 structural representations.
Fig. 4 is the utility model embodiment 3 structural representations.
Fig. 5 is the utility model embodiment 4 structural representations.
Embodiment:
Embodiment 1:
Fig. 1, Fig. 2 have provided the utility model embodiment 1 figure.Be coated with forming of thick 0.03mm～0.20mm in steel wire 1 periphery and strengthen body 3 with ethene one vinyl acetate (EVA) binder structure layer 2.The outer wall of formerly extruding polyethylene (or polypropylene) inner tube 5 in the continuum 4 of cooling forming is coated with the steel wire of binder structure layer with 1 (or 2 or 3) enhancing body twines on it by certain spiral shell square left-handed (but also dextrorotation), to its heating, meanwhile extrude polyethylene (or polypropylene) external pipe 6 of cladding steel wire and inner tube and will contain the enhancing body of steel wire and inner tube, the external pipe steel-plastic composite pipe that is composited by the EVA binder on the steel wire.
The pipe of this structure has higher interior bearing capacity than the pure polyethylene pipe of same wall thickness, and fed sheet of a media under equal ring stress uses can improve serviceability temperature.Be applied to gas works, comparable pure polyethylene pipe has higher working pressure, particularly environmental stress crack resistance that the raising in big step can be arranged.
Embodiment 2:
Fig. 3 has provided the utility model embodiment 2 figure.On steel wire 29, be coated with thick 0.03mm～0.20mm EVA binder structure layer 17 and form enhancing body 8.Get 2 (or 1 or 3) and strengthen the mode that body 8 adopts left-handed (or dextrorotation) to abut one another together and twine on the outer wall of the inner tube 10 of the continuum 9 of extruding cooling forming, meanwhile the polyethylene extrusion plastic overmold is on having the enhancing body of steel wire and form external pipe 11 and by strengthening binder in the body with steel wire and inner tube, the compound steel-plastic composite pipe that forms of external pipe.
Embodiment 3:
Fig. 4 has provided embodiment's 3 structural representations.Formerly extrude 2 (or 3) adopting on the outer wall of polyethylene inner layer pipe 13 of cooling forming continuum 12 among the embodiment 1 by steel wire with coat the compound enhancing body 14 of binder structure layer on it and adopt the mode of left-handed and dextrorotation that it is twined respectively promptly on inner tube, to form two-layer steel wire enhancing body winding layer by certain pitch, then to strengthening the heating of body and inner tube outer wall, meanwhile, the polyethylene extrusion plastic overmold forms continuum external pipe 15 and with the inside and outside layer pipe steel-plastic composite pipe that is composited strengthening on the body.
This embodiment is fit to produce larger-diameter pipeline, and in pipe network, often the caliber of φ 50 to φ 200 all is required a working pressure, tackles the ring stress of bassoon mutually and has relatively high expectations, and has just adopted two-layer structure of steel wire to strengthen.
Embodiment 4:
Fig. 5 has provided embodiment's 4 structural representations.Elder generation's extruding and moulding is as the inner tube 16 polyethylene pipes of the inwall of polyethylene continuum 21, when pipe inwall cooling but outer wall pressed near the mode of left-handed (or dextrorotation) together by the enhancing body 19 of the steel wire 18 of being used ethene one vinyl acetate (EVA) and poly blend structure layer 17 plastic-coated to clad in advance with 1 (or 2 3) when still be the molten mass state it twined, when pipe diameter is φ 110mm, steel wire diameter adopts φ 2mm, and diameter is φ 6mm behind the steel wire plastic-coated.It is external pipe that present embodiment is not extruded the cladding outer wall again, but the external pipe of utilizing the thicker coating layer replacement behind the steel wire plastic-coated need be connected with bipass spare molten mass when pipeline connects later on.Tube wall 20 is that polyethylene pipe and plastic coating steel wire twine and formed near a super helix.Also formed steel-plastic composite pipe for this reason.
Embodiment 5:
Fig. 6 has provided the utility model embodiment 5 structural representations.Be formerly extrude cooling forming as being used the enhancing body 24 of the steel wire 23 of ethene-vinyl acetate ester (EVA) 22 plastic-coateds cladding it to be twined in advance with 1 (or 2 or 3) on the outer wall of the silane crosslinked polyethylene pipes base of the inner tube of inwall by a constant pitch or left-handed or dextrorotation, the EVA plastic-coated clads general thickness at 0.03mm～0.20mm, outer wall with twine and crosslinked polyethylene pipe heats then, meanwhile material is extruded cladding steel wire and silane crosslinked polyethylene pipes base for crosslinked polyethylene not, steel wire cladded formed tube wall 25, by the EVA Bond with steel wire and organosilane crosslinked polyethylene, inner tube 27 and external pipe 28 do not couple together in the continuum 26 of crosslinked polyethylene formation, and promptly combine formation inner tube and external pipe are the steel-plastic composite pipes of the polymer material of different performance and form.This pipe uses under hot water conditions or before engineering is used inner tube is used the hot cooking, make its crosslinked silane crosslinked polyethylene pipe that becomes, than general polyethylene pipe better intensity and ageing-resistant chemical-resistance are arranged, the serviceability temperature that ability is 60 ℃～80 ℃, because of external pipe does not have crosslinked, make things convenient for fusion to connect again the difficulty of crosslinked polyethylene inconvenience connection is solved, because of the humidification of spiral wound steel wire is arranged, make common crosslinked polyethylene and not the co-extrusion composite pipe of crosslinked polyethylene can not satisfy 〉=application of 1.6MPa working pressure broken through.
Claims (4)
1, spiral wound steel wire strengthens the steel-plastic composite pipe of body, comprise the polymer continuum that is arranged in tube wall, it is characterized in that having by at least one surface having the steel wire of the adhesive structure layer that Bond or Bond and blend polymer form to do that left-handed and/or dextrorotation is twined and the enhancing body that forms, strengthen body place the polymer continuum and by the adhesive structure layer make steel wire and polymer continuum firm compound be one.
2, spiral wound steel wire according to claim 1 strengthens the steel-plastic composite pipe of body, it is characterized in that strengthening the adjacent wires that spiral twines in the body and abuts against together.
3. spiral wound steel wire according to claim 1 strengthens the steel-plastic composite pipe of body, and it is separated it is characterized in that strengthening the adjacent wires that spiral twines in the body.
4, strengthen the steel-plastic composite pipe of bodies according to claim 1 or 2 or 3 described spiral wound steel wires, it is characterized in that the enhancing body that is aggregated the coating of thing continuum that has the steel wire spiral of adhesive structure layer to twine formation with the surface is the interface, its interior pipe layer and external tube layer are that the polymer material of employing different performance and form is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01247511 CN2483579Y (en) | 2001-09-05 | 2001-09-05 | Spiral winded steel wire reinforced plastic composite tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01247511 CN2483579Y (en) | 2001-09-05 | 2001-09-05 | Spiral winded steel wire reinforced plastic composite tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2483579Y true CN2483579Y (en) | 2002-03-27 |
Family
ID=33658356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01247511 Expired - Fee Related CN2483579Y (en) | 2001-09-05 | 2001-09-05 | Spiral winded steel wire reinforced plastic composite tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2483579Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102311019A (en) * | 2010-07-09 | 2012-01-11 | 肖玉光 | Steel-plastic composite winding pipe winding machine |
| CN105202281B (en) * | 2015-04-08 | 2018-03-06 | 刘嵩 | High molecular weight polyethylene steel skeleton composite and preparation method thereof and equipment complex |
| EA029807B1 (en) * | 2016-05-30 | 2018-05-31 | Павел Иванович Кичигин | Device for underground transportation or storage |
| CN112963632A (en) * | 2021-03-11 | 2021-06-15 | 四川泰鑫实业发展有限责任公司 | Flexible composite pipe and production method and production device thereof |
-
2001
- 2001-09-05 CN CN 01247511 patent/CN2483579Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102311019A (en) * | 2010-07-09 | 2012-01-11 | 肖玉光 | Steel-plastic composite winding pipe winding machine |
| CN105202281B (en) * | 2015-04-08 | 2018-03-06 | 刘嵩 | High molecular weight polyethylene steel skeleton composite and preparation method thereof and equipment complex |
| EA029807B1 (en) * | 2016-05-30 | 2018-05-31 | Павел Иванович Кичигин | Device for underground transportation or storage |
| CN112963632A (en) * | 2021-03-11 | 2021-06-15 | 四川泰鑫实业发展有限责任公司 | Flexible composite pipe and production method and production device thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |