CN113154141A - Plate-wire double-framework plastic composite pipe and preparation process thereof - Google Patents
Plate-wire double-framework plastic composite pipe and preparation process thereof Download PDFInfo
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- CN113154141A CN113154141A CN202110290168.0A CN202110290168A CN113154141A CN 113154141 A CN113154141 A CN 113154141A CN 202110290168 A CN202110290168 A CN 202110290168A CN 113154141 A CN113154141 A CN 113154141A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
- F16L9/147—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups comprising only layers of metal and plastics with or without reinforcement
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D23/00—Producing tubular articles
- B29D23/001—Pipes; Pipe joints
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a plate-wire double-framework plastic composite pipe and a preparation process thereof. The method comprises the steps of firstly preparing a porous steel pipe, then welding a weft steel wire on the outer surface of the porous steel pipe in a winding manner, preparing an inner layer pipe with the same diameter as the porous steel pipe, compressing the inner layer pipe into the porous steel pipe in the same diameter manner, sealing two ends of the porous steel pipe, inflating the pipe to enable the inner layer pipe to be tightly combined with the porous steel pipe, and extruding polyolefin on the outer surfaces of the inner layer pipe and the dual-skeleton frame of the plate wire which are heated at high frequency in a vacuum environment to form an outer layer pipe, so that air between the outer layer pipe and the dual-skeleton frame of the plate wire and the inner layer pipe can be reduced, the combination strength is improved, and meanwhile, the cross-linking density of the molten outer layer pipe and the heated inner layer pipe is better and the combination is tighter; the plate-wire double-framework plastic composite pipe prepared by the method has the advantages of good bonding performance, good mechanical property, smooth inner surface and material saving, and has good practical performance.
Description
Technical Field
The invention relates to the technical field of plastic composite pipes, in particular to a plate-wire double-framework plastic composite pipe and a preparation process thereof.
Background
At present, the pipe in the market is various, a simple metal pipe or a plastic pipe cannot meet daily life of people, the metal pipe is heavy in weight, difficult to transport and quite limited in use, an anti-corrosion coating must be coated on the surface of the metal pipe, otherwise, the service life of the metal pipe is extremely short, the plastic pipe is not strong in bending resistance and bending resistance, the use limitation is quite large, the most sought after is the composite pipe, and the combination of the metal pipe and the plastic pipe has the advantages of mechanical strength of the metal pipe, corrosion resistance of the plastic pipe, light weight and the like.
The composite pipes on the market have a plurality of defects, some composite pipes are formed by simply combining a metal net with a plastic pipe, and some composite pipes are formed by bonding metal and plastic by using glue, so that the prepared composite pipes are poor in performance and limited in service life.
The invention provides a plate-wire double-framework plastic composite pipe and a preparation process thereof to solve the problems.
Disclosure of Invention
The invention aims to provide a plate-wire double-framework plastic composite pipe and a preparation process thereof, and aims to solve the problems in the background art.
In order to solve the technical problems, the invention provides the following technical scheme:
the plate-wire double-framework plastic composite pipe comprises an inner layer pipe, a plate-wire double framework and an outer layer pipe, wherein the inner layer pipe, the plate-wire double framework and the outer layer pipe are sequentially arranged from inside to outside.
Further, the inner layer pipe and the outer layer pipe are both made of polyolefin.
Further, the polyolefin is any one of polyethylene and polypropylene.
Further, the double-skeleton plate wire comprises a porous steel pipe and a weft-wise steel wire, the weft-wise steel wire is in a wrapped mode on the outer surface of the porous steel pipe, the inner layer pipe is wrapped inside the porous steel pipe, and the outer layer pipe is wrapped outside the weft-wise steel wire.
Further, the porous steel pipe is circular in pore shape; the aperture of the porous steel pipe is 1 cm-5 cm.
Furthermore, the distance between every two steel wires wound by the weft steel wires is 1-5 mm.
Further, the diameter of the inner-layer pipe is the same as that of the porous steel pipe.
A preparation process of a plate-wire double-framework plastic composite pipe comprises the following steps:
s1: preparing a porous steel pipe, and performing girth welding on a weft steel wire on the porous steel pipe to prepare a plate wire double-framework;
s2: the polyolefin is melted and extruded to prepare an inner layer pipe, the inner layer pipe is compressed into a dual-skeleton plate wire in an equal diameter mode, end sealing is conducted, and inflation is conducted;
s3: and extruding the molten polyolefin on the outer surface of the double frameworks of the plate wire to form an outer layer pipe, thus obtaining the plastic composite pipe with the double frameworks of the plate wire.
Further, the step S1:
preparing a porous steel pipe with uniformly distributed holes on the pipe wall, and performing girth welding on the latitudinal steel wire on the outer surface of the porous steel pipe along the latitudinal direction to prepare a plate wire double-framework;
further, the step S2:
extruding molten polyolefin to obtain a plastic pipe with the same diameter as the porous steel pipe to obtain an inner layer pipe, compressing the inner layer pipe into a plate wire double framework in the same diameter, fixing the plate wire double framework, sealing two ends, and inflating the pipe to ensure that the inner layer pipe is extruded on the inner surface of the porous steel pipe;
further, the step S3:
and placing the plate-wire double frameworks and the inner layer pipe in a vacuum environment, carrying out high-frequency heating on the plate-wire double frameworks and the inner layer pipe, extruding and covering the molten polyolefin on the outer surfaces of the plate-wire double frameworks to form an outer layer pipe, and thus obtaining the plate-wire double framework plastic composite pipe.
Compared with the prior art, the invention has the following beneficial effects:
the invention discloses a plate-wire double-framework plastic composite pipe and a preparation process thereof. The plate-wire double-framework plastic composite pipe prepared by the invention is different from the prior process, a mesh steel plate is prepared firstly, the melted polyolefin is extruded and coated on the mesh steel plate for infiltration, and a plastic inner layer is formed after infiltration, so that the smoothness of the inner surface of a plastic layer formed by the prepared composite pipe is not high, the thickness of the plastic layer is not uniform, and a series of problems of material blockage, internal scaling and the like can be easily caused;
the method comprises the steps of firstly preparing a porous steel pipe, then welding a weft steel wire on the outer surface of the porous steel pipe in a winding manner, preparing an inner layer pipe with the same diameter as the porous steel pipe, compressing the inner layer pipe into the porous steel pipe in the same diameter manner, sealing two ends of the porous steel pipe, inflating the pipe to enable the inner layer pipe to be tightly combined with the porous steel pipe, and extruding polyolefin on the outer surfaces of the inner layer pipe and the dual-skeleton frame of the plate wire which are heated at high frequency in a vacuum environment to form an outer layer pipe, so that air between the outer layer pipe and the dual-skeleton frame of the plate wire and the inner layer pipe can be reduced, the combination strength is improved, and meanwhile, the cross-linking density of the molten outer layer pipe and the heated inner layer pipe is better and the combination is tighter;
the plate-wire double-framework plastic composite pipe prepared by the method has the advantages of good bonding performance, good mechanical property, smooth inner surface and material saving, and has good practical performance.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
A preparation process of a plate-wire double-framework plastic composite pipe comprises the following steps:
s1: preparing a porous steel pipe, and performing girth welding on a weft steel wire on the porous steel pipe to prepare a plate wire double-framework;
s2: melting and extruding polyolefin to prepare an inner layer pipe, compressing the inner layer pipe into a dual-skeleton plate wire in an equal diameter manner, sealing the end, and inflating;
s3: and extruding the molten polyolefin on the outer surface of the double frameworks of the plate wire to form an outer layer pipe, thus obtaining the plastic composite pipe with the double frameworks of the plate wire.
Wherein, S1:
preparing a porous steel pipe with uniformly distributed holes on the pipe wall, and performing girth welding on the latitudinal steel wire on the outer surface of the porous steel pipe along the latitudinal direction to prepare a plate wire double-framework;
wherein, S2:
extruding molten polyolefin to obtain a plastic pipe with the same diameter as the porous steel pipe to obtain an inner layer pipe, compressing the inner layer pipe into a plate wire double framework in the same diameter, fixing the plate wire double framework, sealing two ends, and inflating the pipe to ensure that the inner layer pipe is extruded on the inner surface of the porous steel pipe;
wherein, S3:
and placing the plate-wire double frameworks and the inner layer pipe in a vacuum environment, carrying out high-frequency heating on the plate-wire double frameworks and the inner layer pipe, extruding and covering the molten polyolefin on the outer surfaces of the plate-wire double frameworks to form an outer layer pipe, and thus obtaining the plate-wire double framework plastic composite pipe.
Wherein the polyolefin is polyethylene.
Wherein the pore size of the porous steel pipe is 1 cm.
Wherein, the interval between every two windings of latitudinal direction steel wire is 1 mm.
Example 2
A preparation process of a plate-wire double-framework plastic composite pipe comprises the following steps:
s1: preparing a porous steel pipe, and performing girth welding on a weft steel wire on the porous steel pipe to prepare a plate wire double-framework;
s2: melting and extruding polyolefin to prepare an inner layer pipe, compressing the inner layer pipe into a dual-skeleton plate wire in an equal diameter manner, sealing the end, and inflating;
s3: and extruding the molten polyolefin on the outer surface of the double frameworks of the plate wire to form an outer layer pipe, thus obtaining the plastic composite pipe with the double frameworks of the plate wire.
Wherein, S1:
preparing a porous steel pipe with uniformly distributed holes on the pipe wall, and performing girth welding on the latitudinal steel wire on the outer surface of the porous steel pipe along the latitudinal direction to prepare a plate wire double-framework;
wherein, S2:
extruding molten polyolefin to obtain a plastic pipe with the same diameter as the porous steel pipe to obtain an inner layer pipe, compressing the inner layer pipe into a plate wire double framework in the same diameter, fixing the plate wire double framework, sealing two ends, and inflating the pipe to ensure that the inner layer pipe is extruded on the inner surface of the porous steel pipe;
wherein, S3:
and placing the plate-wire double frameworks and the inner layer pipe in a vacuum environment, carrying out high-frequency heating on the plate-wire double frameworks and the inner layer pipe, extruding and covering the molten polyolefin on the outer surfaces of the plate-wire double frameworks to form an outer layer pipe, and thus obtaining the plate-wire double framework plastic composite pipe.
Wherein the polyolefin is polyethylene.
Wherein the pore size of the porous steel pipe is 2 cm.
Wherein, the interval between every two windings of latitudinal direction steel wire is 2 mm.
Example 3
A preparation process of a plate-wire double-framework plastic composite pipe comprises the following steps:
s1: preparing a porous steel pipe, and performing girth welding on a weft steel wire on the porous steel pipe to prepare a plate wire double-framework;
s2: melting and extruding polyolefin to prepare an inner layer pipe, compressing the inner layer pipe into a dual-skeleton plate wire in an equal diameter manner, sealing the end, and inflating;
s3: and extruding the molten polyolefin on the outer surface of the double frameworks of the plate wire to form an outer layer pipe, thus obtaining the plastic composite pipe with the double frameworks of the plate wire.
Wherein, S1:
preparing a porous steel pipe with uniformly distributed holes on the pipe wall, and performing girth welding on the latitudinal steel wire on the outer surface of the porous steel pipe along the latitudinal direction to prepare a plate wire double-framework;
wherein, S2:
extruding molten polyolefin to obtain a plastic pipe with the same diameter as the porous steel pipe to obtain an inner layer pipe, compressing the inner layer pipe into a plate wire double framework in the same diameter, fixing the plate wire double framework, sealing two ends, and inflating the pipe to ensure that the inner layer pipe is extruded on the inner surface of the porous steel pipe;
wherein, S3:
and placing the plate-wire double frameworks and the inner layer pipe in a vacuum environment, carrying out high-frequency heating on the plate-wire double frameworks and the inner layer pipe, extruding and covering the molten polyolefin on the outer surfaces of the plate-wire double frameworks to form an outer layer pipe, and thus obtaining the plate-wire double framework plastic composite pipe.
Wherein the polyolefin is polyethylene.
Wherein the pore size of the porous steel pipe is 3 cm.
Wherein, the interval between every two windings of latitudinal direction steel wire is 3 mm.
Example 4
A preparation process of a plate-wire double-framework plastic composite pipe comprises the following steps:
s1: preparing a porous steel pipe, and performing girth welding on a weft steel wire on the porous steel pipe to prepare a plate wire double-framework;
s2: melting and extruding polyolefin to prepare an inner layer pipe, compressing the inner layer pipe into a dual-skeleton plate wire in an equal diameter manner, sealing the end, and inflating;
s3: and extruding the molten polyolefin on the outer surface of the double frameworks of the plate wire to form an outer layer pipe, thus obtaining the plastic composite pipe with the double frameworks of the plate wire.
Wherein, S1:
preparing a porous steel pipe with uniformly distributed holes on the pipe wall, and performing girth welding on the latitudinal steel wire on the outer surface of the porous steel pipe along the latitudinal direction to prepare a plate wire double-framework;
wherein, S2:
extruding molten polyolefin to obtain a plastic pipe with the same diameter as the porous steel pipe to obtain an inner layer pipe, compressing the inner layer pipe into a plate wire double framework in the same diameter, fixing the plate wire double framework, sealing two ends, and inflating the pipe to ensure that the inner layer pipe is extruded on the inner surface of the porous steel pipe;
wherein, S3:
and placing the plate-wire double frameworks and the inner layer pipe in a vacuum environment, carrying out high-frequency heating on the plate-wire double frameworks and the inner layer pipe, extruding and covering the molten polyolefin on the outer surfaces of the plate-wire double frameworks to form an outer layer pipe, and thus obtaining the plate-wire double framework plastic composite pipe.
Wherein the polyolefin is polyethylene.
Wherein the pore size of the porous steel pipe is 4 cm.
Wherein, the interval between every two windings of the latitudinal steel wire is 4 mm.
Example 5
A preparation process of a plate-wire double-framework plastic composite pipe comprises the following steps:
s1: preparing a porous steel pipe, and performing girth welding on a weft steel wire on the porous steel pipe to prepare a plate wire double-framework;
s2: melting and extruding polyolefin to prepare an inner layer pipe, compressing the inner layer pipe into a dual-skeleton plate wire in an equal diameter manner, sealing the end, and inflating;
s3: and extruding the molten polyolefin on the outer surface of the double frameworks of the plate wire to form an outer layer pipe, thus obtaining the plastic composite pipe with the double frameworks of the plate wire.
Wherein, S1:
preparing a porous steel pipe with uniformly distributed holes on the pipe wall, and performing girth welding on the latitudinal steel wire on the outer surface of the porous steel pipe along the latitudinal direction to prepare a plate wire double-framework;
wherein, S2:
extruding molten polyolefin to obtain a plastic pipe with the same diameter as the porous steel pipe to obtain an inner layer pipe, compressing the inner layer pipe into a plate wire double framework in the same diameter, fixing the plate wire double framework, sealing two ends, and inflating the pipe to ensure that the inner layer pipe is extruded on the inner surface of the porous steel pipe;
wherein, S3:
and placing the plate-wire double frameworks and the inner layer pipe in a vacuum environment, carrying out high-frequency heating on the plate-wire double frameworks and the inner layer pipe, extruding and covering the molten polyolefin on the outer surfaces of the plate-wire double frameworks to form an outer layer pipe, and thus obtaining the plate-wire double framework plastic composite pipe.
Wherein the polyolefin is polyethylene.
Wherein the pore size of the porous steel pipe is 5 cm.
Wherein, the interval between every two windings of the latitudinal steel wire is 5 mm.
Comparative example 1
A preparation method of a plate-wire double-framework plastic composite pipe comprises the following steps:
s1: preparing a mesh steel plate layer;
s2: and extruding and coating the melted polyolefin on the mesh steel plate layer, permeating inwards, and crosslinking to form an inner layer to obtain the plate-wire double-framework plastic composite pipe.
Wherein, S1:
preparing a mesh steel plate layer by using a steel plate;
wherein, S2:
extruding and covering the melted polyolefin on the meshed steel plate layer to form a plastic layer, inwards extruding and covering the plastic layer through the meshed steel plate layer, permeating and crosslinking to form an inner-layer-wrapped meshed steel plate layer, and thus obtaining the plate-wire double-framework plastic composite pipe.
Wherein the polyolefin is polyethylene.
Wherein, the hole shape of the mesh steel plate layer is circular.
Wherein the aperture size of the mesh steel plate is 1 cm.
Comparative example 2
A preparation method of a plate-wire double-framework plastic composite pipe comprises the following steps:
s1: preparing a mesh steel plate layer;
s2: and extruding and coating the melted polyolefin on the mesh steel plate layer, permeating inwards, and crosslinking to form an inner layer to obtain the plate-wire double-framework plastic composite pipe.
Wherein, S1:
preparing a mesh steel plate layer by using a steel plate;
wherein, S2:
extruding and covering the melted polyolefin on the meshed steel plate layer to form a plastic layer, inwards extruding and covering the plastic layer through the meshed steel plate layer, permeating and crosslinking to form an inner-layer-wrapped meshed steel plate layer, and thus obtaining the plate-wire double-framework plastic composite pipe.
Wherein the polyolefin is polyethylene.
Wherein, the hole shape of the mesh steel plate layer is circular.
Wherein the aperture diameter of the mesh steel plate is 2 cm.
Comparative example 3
A preparation method of a plate-wire double-framework plastic composite pipe comprises the following steps:
s1: preparing a mesh steel plate layer;
s2: and extruding and coating the melted polyolefin on the mesh steel plate layer, permeating inwards, and crosslinking to form an inner layer to obtain the plate-wire double-framework plastic composite pipe.
Wherein, S1:
preparing a mesh steel plate layer by using a steel plate;
wherein, S2:
extruding and covering the melted polyolefin on the meshed steel plate layer to form a plastic layer, inwards extruding and covering the plastic layer through the meshed steel plate layer, permeating and crosslinking to form an inner-layer-wrapped meshed steel plate layer, and thus obtaining the plate-wire double-framework plastic composite pipe.
Wherein the polyolefin is polyethylene.
Wherein, the hole shape of the mesh steel plate layer is circular.
Wherein the aperture diameter of the mesh steel plate is 3 cm.
Comparative example 4
A preparation method of a plate-wire double-framework plastic composite pipe comprises the following steps:
s1: preparing a mesh steel plate layer;
s2: and extruding and coating the melted polyolefin on the mesh steel plate layer, permeating inwards, and crosslinking to form an inner layer to obtain the plate-wire double-framework plastic composite pipe.
Wherein, S1:
preparing a mesh steel plate layer by using a steel plate;
wherein, S2:
extruding and covering the melted polyolefin on the meshed steel plate layer to form a plastic layer, inwards extruding and covering the plastic layer through the meshed steel plate layer, permeating and crosslinking to form an inner-layer-wrapped meshed steel plate layer, and thus obtaining the plate-wire double-framework plastic composite pipe.
Wherein the polyolefin is polyethylene.
Wherein, the hole shape of the mesh steel plate layer is circular.
Wherein the aperture diameter of the mesh steel plate is 4 cm.
Comparative example 5
A preparation method of a plate-wire double-framework plastic composite pipe comprises the following steps:
s1: preparing a mesh steel plate layer;
s2: and extruding and coating the melted polyolefin on the mesh steel plate layer, permeating inwards, and crosslinking to form an inner layer to obtain the plate-wire double-framework plastic composite pipe.
Wherein, S1:
preparing a mesh steel plate layer by using a steel plate;
wherein, S2:
extruding and covering the melted polyolefin on the meshed steel plate layer to form a plastic layer, inwards extruding and covering the plastic layer through the meshed steel plate layer, permeating and crosslinking to form an inner-layer-wrapped meshed steel plate layer, and thus obtaining the plate-wire double-framework plastic composite pipe.
Wherein the polyolefin is polyethylene.
Wherein, the hole shape of the mesh steel plate layer is circular.
Wherein the aperture diameter of the mesh steel plate is 5 cm.
Experiment one
The samples of examples 1-5 and comparative examples 1-5 were used as test samples, and the fracture conditions of the samples were detected according to CJ/T189-.
Experiment two
The samples in examples 1 to 5 and comparative examples 1 to 5 were used as experimental samples, and the samples were tested according to GB/T15560 1995 method for testing hydraulic instantaneous bursting and pressure resistance of plastic pipes for fluid transportation, and the pressure resistance was recorded.
Experimental data
Data analysis
The data show that the fracturing conditions and the pressure resistance of the examples 1 to 5 are superior to those of the comparative examples 1 to 5;
compared with the embodiment 1-5, the plastic layer is prepared in the comparative example 1-5 by extrusion coating, so that the wall thickness of the prepared composite pipe is not uniform, the stress of the mesh steel plate layer is not uniform, the extrusion deformation is easily caused, and the product performance is influenced.
In conclusion, the plate-wire double-framework plastic composite pipe prepared by the method has the advantages of good bonding performance, good mechanical property, smooth inner surface and material saving, and has good practical performance.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a compound pipe of two skeletons of slab silk plastics which characterized in that: the plate-wire double-framework plastic composite pipe comprises an inner layer pipe, a plate-wire double framework and an outer layer pipe, wherein the inner layer pipe, the plate-wire double framework and the outer layer pipe are sequentially arranged from inside to outside.
2. The sheet-wire double-framework plastic composite pipe according to claim 1, characterized in that: the inner layer pipe and the outer layer pipe are both made of polyolefin.
3. The sheet-wire double-framework plastic composite pipe according to claim 2, characterized in that: the polyolefin is any one of polyethylene and polypropylene.
4. The sheet-wire double-framework plastic composite pipe according to claim 1, characterized in that: the double-skeleton steel plate wire comprises a porous steel pipe and a weft-wise steel wire, the weft-wise steel wire is wound and welded on the outer surface of the porous steel pipe, an inner-layer pipe wraps the double-skeleton steel plate wire, and an outer-layer pipe wraps the double-skeleton steel plate wire.
5. The plate-wire double-framework plastic composite pipe according to claim 4, characterized in that: the porous steel pipe is circular in pore shape; the aperture of the porous steel pipe is 1 cm-5 cm.
6. The plate-wire double-framework plastic composite pipe according to claim 4, characterized in that: the space between every two steel wires wound by the weft steel wires is 1 mm-5 mm.
7. The plate-wire double-framework plastic composite pipe according to claim 4, characterized in that: the diameter of the inner layer pipe is the same as that of the porous steel pipe.
8. A preparation process of a plate-wire double-framework plastic composite pipe is characterized by comprising the following steps of:
the method comprises the following steps:
s1: preparing a porous steel pipe, and performing girth welding on a weft steel wire on the porous steel pipe to prepare a plate wire double-framework;
s2: the polyolefin is melted and extruded to prepare an inner layer pipe, the inner layer pipe is compressed into a dual-skeleton plate wire in an equal diameter mode, end sealing is conducted, and inflation is conducted;
s3: and extruding the molten polyolefin on the outer surface of the double frameworks of the plate wire to form an outer layer pipe, thus obtaining the plastic composite pipe with the double frameworks of the plate wire.
9. The preparation process of the plate-wire double-framework plastic composite pipe according to claim 8, characterized in that:
the S1:
preparing a porous steel pipe with uniformly distributed holes on the pipe wall, and performing girth welding on the latitudinal steel wire on the outer surface of the porous steel pipe along the latitudinal direction to prepare a plate wire double-framework;
the S2:
extruding molten polyolefin to obtain a plastic pipe with the same diameter as the porous steel pipe to obtain an inner layer pipe, compressing the inner layer pipe into a plate wire double framework in the same diameter, fixing the plate wire double framework, sealing two ends, and inflating the pipe to ensure that the inner layer pipe is extruded on the inner surface of the porous steel pipe;
the S3:
and placing the plate-wire double frameworks and the inner layer pipe in a vacuum environment, carrying out high-frequency heating on the plate-wire double frameworks and the inner layer pipe, extruding and covering the molten polyolefin on the outer surfaces of the plate-wire double frameworks to form an outer layer pipe, and thus obtaining the plate-wire double framework plastic composite pipe.
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| CN202110290168.0A CN113154141A (en) | 2021-03-18 | 2021-03-18 | Plate-wire double-framework plastic composite pipe and preparation process thereof |
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| CN202110290168.0A CN113154141A (en) | 2021-03-18 | 2021-03-18 | Plate-wire double-framework plastic composite pipe and preparation process thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1648508A (en) * | 2005-02-03 | 2005-08-03 | 甘国工 | Steel-plastic composite pipe |
| CN101003173A (en) * | 2006-01-19 | 2007-07-25 | 甘国工 | Method and equipment for producing steel-plastics composite tube with two layers of polymer layer |
| CN206257382U (en) * | 2016-12-01 | 2017-06-16 | 江西陆丰管业科技有限公司 | A kind of etch-proof steel-belt-pipe |
| CN208123654U (en) * | 2018-01-25 | 2018-11-20 | 河南金鹏管道有限公司 | A kind of HDPE hole pattern steel strip-plastic multiple tube |
| CN111805861A (en) * | 2020-06-20 | 2020-10-23 | 江苏冠之星管道系统有限公司 | Production method of plate wire steel skeleton plastic composite pipe |
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2021
- 2021-03-18 CN CN202110290168.0A patent/CN113154141A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1648508A (en) * | 2005-02-03 | 2005-08-03 | 甘国工 | Steel-plastic composite pipe |
| CN101003173A (en) * | 2006-01-19 | 2007-07-25 | 甘国工 | Method and equipment for producing steel-plastics composite tube with two layers of polymer layer |
| CN206257382U (en) * | 2016-12-01 | 2017-06-16 | 江西陆丰管业科技有限公司 | A kind of etch-proof steel-belt-pipe |
| CN208123654U (en) * | 2018-01-25 | 2018-11-20 | 河南金鹏管道有限公司 | A kind of HDPE hole pattern steel strip-plastic multiple tube |
| CN111805861A (en) * | 2020-06-20 | 2020-10-23 | 江苏冠之星管道系统有限公司 | Production method of plate wire steel skeleton plastic composite pipe |
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