CN118346827A - Integrated steel mesh skeleton reinforced plastic composite pipe - Google Patents
Integrated steel mesh skeleton reinforced plastic composite pipe Download PDFInfo
- Publication number
- CN118346827A CN118346827A CN202410679911.5A CN202410679911A CN118346827A CN 118346827 A CN118346827 A CN 118346827A CN 202410679911 A CN202410679911 A CN 202410679911A CN 118346827 A CN118346827 A CN 118346827A
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- Prior art keywords
- layer
- warp
- weft
- steel
- pipe body
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 99
- 239000010959 steel Substances 0.000 title claims abstract description 99
- 239000002131 composite material Substances 0.000 title claims abstract description 21
- 239000002990 reinforced plastic Substances 0.000 title claims abstract description 13
- 239000004033 plastic Substances 0.000 claims abstract description 33
- 229920003023 plastic Polymers 0.000 claims abstract description 33
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 28
- 238000003466 welding Methods 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 15
- 238000001125 extrusion Methods 0.000 claims abstract description 11
- 238000004804 winding Methods 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims description 9
- 229920001169 thermoplastic Polymers 0.000 claims description 7
- 238000005516 engineering process Methods 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000013329 compounding Methods 0.000 abstract description 2
- 230000001360 synchronised effect Effects 0.000 abstract description 2
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000008093 supporting effect Effects 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Abstract
The invention discloses an integrated steel mesh skeleton reinforced plastic composite pipe, which relates to the field of steel-plastic composite pipes, and is formed by an extrusion molding process, and comprises a pipe body and an inner reinforcing phase positioned between the inner wall and the outer wall of the pipe body; the inner reinforcing phase comprises a warp layer and a weft layer, the warp layer is a steel wire axially arranged along the pipe body, and the weft layer is a steel wire spirally wound along the circumferential direction of the pipe body; the weft wire is welded and fixed at the contact point with the warp wire in the spiral winding process, and the weft wire and the warp wire form an integrated steel mesh skeleton reinforcing structure. The invention realizes the integral steel mesh skeleton reinforced structure of the multi-layer steel mesh by step-by-step or synchronous welding, realizes the multiplied increase of the integral rigidity of the pipe, has better integral stability after steel-plastic compounding, and provides higher mechanical strength and better impact resistance.
Description
Technical Field
The invention relates to the field of steel-plastic composite pipes, in particular to an integrated steel mesh skeleton reinforced plastic composite pipe.
Background
With the acceptance of industry, the steel-plastic composite pipe has higher requirements on the caliber and the pressure of the pipe, and the built-in skeleton strength of the pipe has a decisive effect on the improvement of the pressure level of the pipe.
The Chinese patent with the publication number of CN211853060U discloses a multi-layer skeleton reinforced plastic composite pipe, which comprises a pipe body formed by an extrusion molding process, at least two layers of reinforced skeletons are fixed between the inner wall and the outer wall of the pipe body by the extrusion molding process, each reinforced skeleton comprises at least one reinforced skeleton A or reinforced skeleton B, each reinforced skeleton A comprises a plurality of warps arranged along the circumferential direction of the pipe body, each warp extends along the axial direction of the pipe body, the warps are spirally wound and welded and fixed along the axial direction of the pipe body through wefts, the warps and the wefts are steel wires, and the reinforced skeleton B is a continuous integrated grid structure.
The above-mentioned published patent is fixed with at least two-layer reinforcing skeleton through extrusion molding technology between the inner wall of body and outer wall for the pipe wall thickness that is relatively less obtains satisfying the pressure and uses the tubular product of requirement, but adjacent two-layer reinforcing steel net skeleton does not contact and welds, exists the pure plastic layer between the two, has reduced the wholeness of steel net and the stability of product structure to a certain extent, has put forward higher requirement to steel-plastic composite forming mould and technology simultaneously.
Disclosure of Invention
In order to solve the problems, the invention provides the multi-layer welding integrated steel mesh skeleton reinforced plastic composite pipe which can reduce the wall thickness of the composite pipe and improve the bearing capacity of the pipe.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
The utility model provides an integral type steel mesh skeleton reinforcing plastic composite pipe, its through extrusion molding technology formation, its key technology lies in: comprises a pipe body and an internal reinforcing phase positioned between the inner wall and the outer wall of the pipe body; the inner reinforcing phase comprises a warp layer and a weft layer, the warp layer is a steel wire axially arranged along the pipe body, and the weft layer is a steel wire spirally wound along the circumferential direction of the pipe body; the weft wire is welded and fixed at the contact point with the warp wire in the spiral winding process, and the weft wire and the warp wire form an integrated steel mesh skeleton reinforcing structure;
The weft layer sets up 2 layers at least, warp layer sets up 2 layers at least, and the setting of next-door neighbour body inner wall can be weft layer or warp layer, weft layer and warp layer set up in turn, and adjacent weft layer and warp layer form a set of steel mesh skeleton reinforced structure.
Further preferably, each layer of warp is formed by a plurality of warp steel wires extending along an axial straight line, the plurality of warp wires are uniformly distributed on the circumference, and the number of the warp wires in each layer is the same or different; each layer of weft is spirally wound on the warp steel wires by a single steel wire or a plurality of steel wires and is welded and fixed.
Further preferably, a plastic seal is arranged on the end face of the pipe body, and the plastic seal is fixedly connected with the end face of the pipe body in a welding or bonding mode; the plastic seal is the same as the pipe body material or is made of other plastic materials which can be mutually dissolved and adhered with the pipe body material.
Further preferably, the inner wall and the outer wall of the pipe body are both made of thermoplastic plastics.
Further preferably, gaps of the steel mesh skeleton reinforced structure are filled with thermoplastic plastics.
Further preferably, the pitch of the weft steel wire is more than or equal to 1mm; the cross section of the weft steel wire and the warp steel wire is round, rectangular or other shapes meeting the requirements.
Further preferably, the welding of the contact points of the weft wire and the warp wire is resistance welding, laser welding or other welding modes meeting the requirements.
Compared with the prior art, the invention has the following technical progress:
1. Compared with the prior art, the two adjacent steel mesh skeleton reinforcing structures are contacted and welded, and no pure plastic layer exists between the two steel mesh skeleton reinforcing structures, so that the wall thickness of the composite pipe can be reduced, the integral steel mesh skeleton can be welded step by step or synchronously, multiple layers of steel meshes form a complete whole, the integral rigidity of the pipe is multiplied, and the integral stability of the pipe is better after the steel and plastic are compounded.
2. The invention is provided with a plurality of weft layers and a plurality of warp layers, wherein the warp layers are steel wires axially arranged along the pipe body, and the weft layers are steel wires spirally wound along the circumferential direction of the pipe body; the weft steel wire is welded and fixed at the contact point with the warp steel wire in the spiral winding process, the weft steel wire and the warp steel wire form an integrated steel mesh skeleton reinforcing structure, higher mechanical strength and better impact resistance can be provided, and the multi-layer steel mesh structure can more effectively disperse load and pressure, so that the compression resistance and the torsion resistance of the pipeline are improved, and meanwhile, the wall thickness of the pipe is greatly reduced. The warp steel wires and the weft steel wires are alternately arranged, so that the second layer of warp steel wires can effectively support the second layer of weft steel wires, and the whole structure is more stable; in the extrusion molding process of the pipe body, the plastic passes through the steel mesh skeleton reinforcing structure, and the steel mesh skeleton reinforcing structure and the pipe body form a stable interpenetrating structure, so that the connection strength of the steel mesh skeleton reinforcing structure and the pipe body is improved, and the layering probability is greatly reduced; by arranging the plastic seal on the end face of the pipe body, the end face of the pipe is guaranteed to have consistent corrosion resistance.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention.
In the drawings:
FIG. 1 is a schematic view of an annular cross section of the present invention;
FIG. 2 is an enlarged view of the portion A of FIG. 1;
FIG. 3 is a cross-sectional view of the present invention;
fig. 4 is an enlarged view at B in fig. 3.
In the figure:
1-a tube body; 11-an inner plastic layer; 12-gap plastic; 13-an outer plastic layer; 2-a steel mesh skeleton reinforcing structure; 21-warp layer; 22-weft layer.
Detailed Description
The following embodiments may be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments. Embodiments of the present invention will be described below with reference to the accompanying drawings.
As shown in fig. 1 to 4, an integral steel mesh skeleton reinforced plastic composite pipe is formed by an extrusion molding process and comprises a pipe body 1 and an inner reinforcing phase positioned between the inner wall and the outer wall of the pipe body 1; the inner reinforcing phase comprises a warp layer 21 and a weft layer 22, the warp layer 21 is a steel wire arranged along the axial direction of the pipe body, and the weft layer 22 is a steel wire spirally wound along the circumferential direction of the pipe body; the weft wire is welded and fixed at the contact point with the warp wire in the spiral winding process, and the weft wire and the warp wire form an integrated steel mesh skeleton reinforcing structure 2.
The steel mesh skeleton reinforced structure 2 is welded independently and extruded into a pipe simultaneously, and a plurality of layers of steel meshes are formed into an integrated steel mesh skeleton reinforced structure through step-by-step or synchronous welding, so that the integral rigidity of the pipe is multiplied, and meanwhile, after steel-plastic compounding, the integral stability of the pipe is better, and higher mechanical strength and better impact resistance are provided; the multi-layer steel mesh skeleton reinforced structure 2 can more effectively disperse load and pressure, so that the compression resistance and the torsion resistance of the pipeline are improved, and the wall thickness of the pipe is greatly reduced; in the extrusion molding process, the plastic passes through the gaps of the steel mesh skeleton reinforced structure 2, and the steel mesh skeleton reinforced structure 2 and the tube body 1 form a stable interpenetrating structure, so that the connection strength of the steel mesh skeleton reinforced structure 2 and the tube body 1 is improved, and the layering probability is greatly reduced. In summary, the invention has the characteristics of improving the bearing capacity, impact resistance, compression resistance and torsion resistance of the pipe, and the pipe with relatively smaller wall thickness can meet the pressure use requirement, and meanwhile, the excellent characteristics of the plastic pipe are maintained.
As a preferred embodiment of the invention, the number of the layers of the weft steel wires and the warp steel wires is at least two, the two-layer steel mesh skeleton reinforcing structure 2 is a mode of alternately arranging one layer of warp, one layer of weft, one layer of warp and one layer of weft, multiple groups of multiple layers can be arranged according to the needs, the second layer of weft steel wires can be effectively prevented from falling into the spiral seams of the first layer of weft steel wires in the spiral winding process, namely, the second layer of warp steel wires have an effective supporting effect on the second layer of weft steel wires, so that the whole structure is more stable.
As a preferred embodiment of the present invention, the innermost layer of the steel mesh skeleton reinforcing structure 2 is not designated as a weft wire or a warp wire, and the innermost layer of the steel mesh skeleton reinforcing structure 2 may be a weft wire or a warp wire, but the warp layers 21 and the weft layers 22 are alternately arranged.
As a preferred embodiment of the invention, the inner and outer walls of the tube body 1 are both composed of thermoplastic, i.e. an inner plastic layer 11 and an outer plastic layer 13. Because the inner wall and the outer wall of the pipe body are thermoplastic plastics, the inner plastic layer 11 has small smooth resistance, the loss of the pipe body 1 along the way is reduced to the maximum extent, and the pipe body 1 has the advantages of corrosion resistance, wear resistance and no scaling. In the embodiment, the steel mesh skeleton reinforced structure 2 is provided with gaps, and the thermoplastic plastics and the steel mesh skeleton reinforced structure 2 form interpenetrating with each other in the extrusion molding process of the pipe body 1, so that a stable pipe structure is obtained.
As a preferred embodiment of the invention, each layer of warp threads consists of a plurality of warp threads extending along the axial direction in a straight line, the plurality of warp thread steel wires are uniformly distributed on the circumference, and the number of the warp thread steel wires in each layer can be the same or different; each layer of weft is formed by spirally winding a single or a plurality of weft steel wires on the warp steel wires and welding, the pitch of each layer of weft steel wires can be the same or different, and the pitch of the weft steel wires is more than or equal to 1mm.
As a preferred embodiment of the present invention, the cross-sectional shapes of the weft wire and the warp wire are circular, rectangular or other shapes satisfying the requirements.
As a preferred embodiment of the invention, each contact point is fixed by a welding process, resistance welding, laser welding or other welding modes meeting the requirements can be adopted, and as the weft steel wires and the warp steel wires are welded and fixed at each contact point, the steel mesh skeleton reinforcing structure 2 is integrated, and meanwhile, the steel mesh skeleton reinforcing structure 2 is ensured not to deviate and deform in the pipe body during extrusion molding.
As a preferred embodiment of the present invention, a plastic seal is provided on the end surface of the pipe body 1, and the plastic seal is fixedly connected with the end surface of the pipe body 1 by welding or bonding. The plastic sealing is the same as the material of the pipe body 1 or other plastic materials which can be mutually dissolved and adhered with the material of the pipe body 1 are adopted, so that the end face of the pipe is ensured to have consistent corrosion resistance.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (7)
1. The utility model provides an integral type steel mesh skeleton reinforcing plastic composite pipe, its through extrusion molding technology formation, its characterized in that: comprises a pipe body (1) and an internal reinforcing phase positioned between the inner wall and the outer wall of the pipe body (1); the inner reinforcing phase comprises a warp layer (21) and a weft layer (22), the warp layer (21) is a steel wire arranged along the axial direction of the pipe body, and the weft layer (22) is a steel wire spirally wound along the circumferential direction of the pipe body; the weft wire is welded and fixed at the contact point with the warp wire in the spiral winding process, and the weft wire and the warp wire form an integrated steel mesh skeleton reinforcing structure (2);
the weft layer (22) is at least provided with 2 layers, the warp layer (21) is at least provided with 2 layers, the warp layer (22) or the warp layer (21) can be arranged close to the inner wall of the pipe body, the weft layer (22) and the warp layer (21) are alternately arranged, and a group of steel mesh skeleton reinforcing structures (2) are formed by the adjacent weft layer (22) and the warp layer (21).
2. The integrated steel mesh skeleton reinforced plastic composite pipe of claim 1, wherein: each layer of warp is composed of a plurality of warp steel wires extending along an axial straight line, the plurality of warp wires are uniformly distributed on the circumference, and the number of the warp wires in each layer is the same or different; each layer of weft is spirally wound on the warp steel wires by a single steel wire or a plurality of steel wires and is welded and fixed.
3. The integrated steel mesh skeleton reinforced plastic composite pipe according to claim 1, wherein a plastic seal is arranged on the end face of the pipe body (1), and the plastic seal is fixedly connected with the end face of the pipe body (1) in a welding or bonding mode; the plastic seal is the same as the material of the pipe body (1) or is made of other plastic materials which can be mutually dissolved and adhered with the material of the pipe body (1).
4. The integrated steel mesh skeleton reinforced plastic composite pipe according to claim 1, wherein the inner wall and the outer wall of the pipe body (1) are both formed by thermoplastic plastics.
5. The integrated steel mesh skeleton reinforced plastic composite pipe according to claim 1, wherein the gaps of the steel mesh skeleton reinforced structure (2) are filled with thermoplastic plastics.
6. The integrated steel mesh skeleton reinforced plastic composite pipe according to claim 1, wherein the pitch of the weft steel wire is more than or equal to 1mm; the cross section of the weft steel wire and the warp steel wire is round, rectangular or other shapes meeting the requirements.
7. The multi-layer welded integral steel mesh skeleton reinforced plastic composite pipe of claim 1, wherein the welding of the contact points of the weft steel wires and the warp steel wires is resistance welding, laser welding or other welding modes meeting the requirements.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118346827A true CN118346827A (en) | 2024-07-16 |
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