CN111059366A - Continuous fiber reinforced thermoplastic pipeline and production method thereof - Google Patents
Continuous fiber reinforced thermoplastic pipeline and production method thereof Download PDFInfo
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- CN111059366A CN111059366A CN201811254172.6A CN201811254172A CN111059366A CN 111059366 A CN111059366 A CN 111059366A CN 201811254172 A CN201811254172 A CN 201811254172A CN 111059366 A CN111059366 A CN 111059366A
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- pipe
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- reinforced thermoplastic
- fiber reinforced
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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
- F16L9/12—Rigid pipes of plastics with or without reinforcement
- F16L9/133—Rigid pipes of plastics with or without reinforcement the walls consisting of two layers
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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)
- Rigid Pipes And Flexible Pipes (AREA)
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Abstract
The invention discloses a continuous fiber reinforced thermoplastic pipeline and a production method thereof, belonging to the technical field of pipeline forming, and comprising an inner layer pipe, wherein the outer wall of the pipeline of the inner layer pipe is compounded with a reinforcing layer through an adhesive layer uniformly coated on the outer wall, the surface of the reinforcing layer is coated with an adhesive layer, and the surface of the adhesive layer is covered with an outer protective layer in a hot melting extrusion mode.
Description
Technical Field
The invention discloses a continuous fiber reinforced thermoplastic pipeline and a production method thereof, and particularly relates to the technical field of pipeline forming.
Background
In recent years, continuous fiber reinforced thermoplastic pipelines have been the popular research direction in the international pipeline field, and have very obvious advantages, so that the continuous fiber reinforced thermoplastic pipelines can not only exert high strength of fibers and bear high pressure, but also keep good toughness and corrosion resistance of thermoplastic plastics, and have wide markets in the application of high-pressure pipes such as oil conveying pipes, gas pipe water supply and drainage pipes and the like.
At present, China can independently develop and produce steel wire mesh framework polyethylene composite pipelines, the pipelines are widely applied to national economy, the uniformity of meshes of the steel wire mesh framework directly influences the pressure resistance value of the pipelines, the pressure resistance value of a place with dense meshes of the framework is higher, the pressure resistance value of a place with sparse meshes is lower, so that the pressure resistance value of the pipelines is not high, the application range of the pipelines is influenced to a certain extent by the lower pressure bearing capacity of the pipelines, and meanwhile, the pipelines are difficult to produce and high in cost rise, so that the application of the pipelines is limited. To this end, we propose a method for producing continuous fiber reinforced thermoplastic pipe and the use thereof to solve the above problems.
Disclosure of Invention
The present invention is directed to a continuous fiber reinforced thermoplastic pipe and method of manufacture that solves the problems set forth in the background above.
In order to achieve the purpose, the invention provides the following technical scheme: the continuous fiber reinforced thermoplastic pipeline comprises an inner layer pipe, wherein the outer wall of the inner layer pipe is compounded with a reinforcing layer through a bonding adhesive layer uniformly coated on the outer wall of the inner layer pipe, the surface of the reinforcing layer is coated with the bonding adhesive layer, and the surface of the bonding adhesive layer is covered with an outer protective layer in a hot melting extrusion mode.
Preferably, the inner diameter of the inner layer pipe is between 160 mm and 220mm, and the wall thickness is 5 mm.
Preferably, the reinforcing layer is a mesh belt woven by glass fiber yarns, and the glass fiber yarns are dried before use at the drying temperature of 60-80 ℃ for 24 hours.
Preferably, the method comprises the following specific steps:
s1: heating high-density polyethylene plastic particles to a molten state, extruding the high-density polyethylene plastic particles from a double-screw extrusion die head, sizing the extruded inner-layer pipe through a vacuum sizing sleeve, and then cooling and forming the inner-layer pipe;
s2: the formed inner-layer pipe is drawn to a gluing station at a certain speed by a tractor, and high-strength adhesive glue is uniformly smeared on the surface of the inner-layer pipe;
s3: then drawing the inner layer pipe to a winding machine station, heating and softening the adhesive glue on the surface of the inner layer pipe at the winding position, and winding the glass fiber wire woven mesh belt on the pipe wall of the inner layer pipe at a certain spiral angle and a certain tension force;
s4: after winding, coating high-strength adhesive on the surface fiber tape of the inner-layer pipe, and drying and curing;
s5: heating and melting the high-density polyethylene plastic particles and the color master, extruding and coating the high-density polyethylene plastic particles and the color master on the outer surface of the pipeline, and then cooling and shaping the pipeline;
s6: and after the pipeline is cut to a fixed length, packaging and warehousing.
Preferably, in the step S2, the traction speed of the tractor is 30-45 m/h, wherein the gluing is carried out at 40-60 ℃.
Preferably, in step S2, the adhesive on the inner pipe is dried and cured after the adhesive is applied, so that the adhesive is uniformly coated on the surface of the inner pipe.
Preferably, in step S3, in the winding machine, the winding frame moves along with the inner tube during the tape changing process by using the servo control system, so as to ensure that the winding frame and the inner tube are relatively stationary during the tape changing process, thereby continuously winding the inner tube.
Preferably, the tension in step S3 is controlled by the spring stiffness N of the tensioning wheel, i.e. N ═ T0in2a/gamma, wherein T0The winding wheel rotation speed is shown, gamma is the inner tube radius, and a is the winding angle.
Preferably, in step S3, the winding of the woven mesh belt of glass fiber yarns is divided into three layers, that is, the first layer is hoop-wound, the second layer is axial-wound, and the third layer is hoop-wound on the basis of axial-winding.
Compared with the prior art, the invention has the beneficial effects that: the invention has reasonable process design, can improve the stress intensity of the pipeline, adopts the one-step forming technology, reduces the production procedures, improves the yield, reduces the production cost and is beneficial to the large-scale popularization and use of the product.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a process flow diagram of the present invention.
In the figure: 1 inner layer tube, 2 adhesive layer, 3 enhancement layer, 4 outer protective layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.
Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides a pipeline that thermoplasticity about continuous fibers reinforcing, includes inlayer pipe 1, the pipeline outer wall of inlayer pipe 1 is through the bonding glue film 2 and the enhancement layer 3 complex of even coating on it, the surface coating one deck bonding glue film 2 of enhancement layer 3, the mode that the surface of bonding glue film 2 was extruded through the hot melt covers one deck outer protective layer 4.
The inner diameter of the inner layer pipe is 160-220 mm, the wall thickness is 5mm, the reinforcing layer 3 is a mesh belt woven by glass fiber yarns, the glass fiber yarns are dried before use, the drying temperature is 60-80 ℃, and the drying time is 24 hours.
The invention also provides a method for producing the continuous fiber reinforced thermoplastic pipe, which comprises the following steps:
s1: heating high-density polyethylene plastic particles to a molten state, extruding the high-density polyethylene plastic particles from a double-screw extrusion die head, sizing the extruded inner-layer pipe 1 through a vacuum sizing sleeve, and then cooling and forming the inner-layer pipe 1;
s2: the formed inner-layer pipe 1 is drawn to a gluing station at a certain speed by a tractor, high-strength adhesive glue is uniformly smeared on the surface of the pipeline of the inner-layer pipe 1, the drawing speed of the tractor is 30-45 m/h, and gluing is carried out at 40-60 ℃;
s3: then the inner layer tube 1 is drawn to the station of the winding machine, the bonding glue on the surface of the inner layer tube 1 at the winding position is heated and softened, then the glass fiber wire woven mesh belt is wound on the tube wall of the inner layer tube 1 with a certain spiral angle and a certain tension force, and in the winding machine, a winding rack is wound in the process of changing the belt by adopting a servo control systemMove along with inlayer pipe 1, guarantee to trade and take in-process both relatively static, make inlayer pipe 1 twine by the continuity, the tensioning force is controlled by the spring stiffness coefficient N of take-up pulley, N ═ T promptly0in2a/gamma, wherein T0The winding of the glass fiber wire woven mesh belt is divided into three layers, namely, the first layer adopts hoop winding, the second layer adopts axial winding, and the third layer carries out hoop winding on the basis of the axial winding;
s4: after winding, coating high-strength adhesive on the surface fiber tape of the inner-layer pipe 1, and drying and curing;
s5: heating and melting the high-density polyethylene plastic particles and the color master, extruding and coating the high-density polyethylene plastic particles and the color master on the outer surface of the pipeline, and then cooling and shaping the pipeline;
s6: after the pipeline is cut to a fixed length, the pipeline is packaged and put in storage
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. A continuous fiber reinforced thermoplastic pipe, characterized by: including inlayer pipe (1), the pipeline outer wall of inlayer pipe (1) is compound with enhancement layer (3) through even coated bonding glue film (2) on it, the surface coating one deck bonding glue film (2) of enhancement layer (3), the surface of bonding glue film (2) covers one deck outer protective layer (4) through the mode that the hot melt was extruded.
2. A continuous fiber reinforced thermoplastic pipe as claimed in claim 1, wherein: the inner diameter of the inner layer pipe (1) is between 160 mm and 220mm, and the wall thickness is 5 mm.
3. A continuous fiber reinforced thermoplastic pipe as claimed in claim 1, wherein: the reinforcing layer (3) is a mesh belt woven by glass fiber yarns, and the glass fiber yarns are dried before being used, wherein the drying temperature is 60-80 ℃, and the drying time is 24 hours.
4. A method in connection with the production of continuous fibre reinforced thermoplastic pipes according to claims 1-3, characterized in that: the method comprises the following specific steps:
s1: heating high-density polyethylene plastic particles to a molten state, extruding the high-density polyethylene plastic particles from a double-screw extrusion die head, sizing the extruded inner-layer pipe (1) through a vacuum sizing sleeve, and then cooling and forming the inner-layer pipe (1);
s2: the formed inner-layer pipe (1) is drawn to a gluing station at a certain speed through a tractor, and high-strength adhesive glue is uniformly smeared on the surface of the inner-layer pipe (1);
s3: then, the inner layer pipe (1) is pulled to a station of a winding machine, the surface of the inner layer pipe (1) at the winding position is bonded with glue and heated to be softened, and then the glass fiber wire woven mesh belt is wound on the pipe wall of the inner layer pipe (1) at a certain spiral angle and a certain tension force;
s4: after winding, coating high-strength adhesive glue on the surface fiber tape of the inner-layer pipe (1), and drying and curing;
s5: heating and melting the high-density polyethylene plastic particles and the color master, extruding and coating the high-density polyethylene plastic particles and the color master on the outer surface of the pipeline, and then cooling and shaping the pipeline;
s6: and after the pipeline is cut to a fixed length, packaging and warehousing.
5. A method of manufacturing a continuous fiber reinforced thermoplastic pipe, as set forth in claim 4, wherein: in the step S2, the traction speed of the tractor is 30-45 m/h, wherein the gluing is carried out at 40-60 ℃.
6. A method of manufacturing a continuous fiber reinforced thermoplastic pipe, as set forth in claim 4, wherein: in the step S2, the adhesive on the inner pipe (1) is dried and cured after being coated with the adhesive, so that the adhesive is uniformly coated on the surface of the inner pipe (1).
7. A method of manufacturing a continuous fiber reinforced thermoplastic pipe, as set forth in claim 4, wherein: in the step S3, in the winding machine, the winding frame moves along with the inner tube (1) during the tape changing process by using the servo control system, so as to ensure that the two are relatively stationary during the tape changing process, thereby continuously winding the inner tube (1).
8. A method of manufacturing a continuous fiber reinforced thermoplastic pipe, as set forth in claim 4, wherein: the tension in step S3 is controlled by the spring stiffness N of the tensioner, i.e. N ═ T0in2a/gamma, wherein T0The winding wheel rotation speed is shown, gamma is the inner tube radius, and a is the winding angle.
9. A method of manufacturing a continuous fiber reinforced thermoplastic pipe, as set forth in claim 4, wherein: in the step S3, the winding of the woven mesh belt of glass fiber yarns is divided into three layers, i.e., the first layer adopts hoop winding, the second layer adopts axial winding, and the third layer carries out hoop winding on the basis of axial winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811254172.6A CN111059366A (en) | 2018-10-16 | 2018-10-16 | Continuous fiber reinforced thermoplastic pipeline and production method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811254172.6A CN111059366A (en) | 2018-10-16 | 2018-10-16 | Continuous fiber reinforced thermoplastic pipeline and production method thereof |
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| CN111059366A true CN111059366A (en) | 2020-04-24 |
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| CN201811254172.6A Pending CN111059366A (en) | 2018-10-16 | 2018-10-16 | Continuous fiber reinforced thermoplastic pipeline and production method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111765300A (en) * | 2020-06-16 | 2020-10-13 | 临海伟星新型建材有限公司 | Barrier composite pipe and preparation method thereof |
| CN113320185A (en) * | 2020-08-17 | 2021-08-31 | 山东玻纤集团股份有限公司 | Composite plastic pipe production system and application method thereof |
| CN114790311A (en) * | 2022-03-29 | 2022-07-26 | 临海伟星新型建材有限公司 | Multilayer bathroom hose and preparation method thereof |
| WO2023103892A1 (en) * | 2021-12-07 | 2023-06-15 | 中国第一汽车股份有限公司 | Air spring airbag and preparation method therefor and application thereof |
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| CN1869492A (en) * | 2006-06-14 | 2006-11-29 | 常州市生富公路材料有限公司 | Reinforced thermoplastic plastic pipe and its production method |
| EP1693179A3 (en) * | 2005-02-17 | 2008-02-13 | Stant Manufacturing Inc. | Method of coupling a component to a fuel fill tube |
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| CN103016856A (en) * | 2012-11-30 | 2013-04-03 | 浙江伟星新型建材股份有限公司 | Fiber mesh tape-wound and reinforced composite pipe, preparation process and device |
| CN104100779A (en) * | 2013-04-07 | 2014-10-15 | 杨蒙 | Hole mesh steel belt plastic composite pipe with five-layered composite structure and manufacturing method thereof |
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2018
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| EP1693179A3 (en) * | 2005-02-17 | 2008-02-13 | Stant Manufacturing Inc. | Method of coupling a component to a fuel fill tube |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111765300A (en) * | 2020-06-16 | 2020-10-13 | 临海伟星新型建材有限公司 | Barrier composite pipe and preparation method thereof |
| CN113320185A (en) * | 2020-08-17 | 2021-08-31 | 山东玻纤集团股份有限公司 | Composite plastic pipe production system and application method thereof |
| WO2023103892A1 (en) * | 2021-12-07 | 2023-06-15 | 中国第一汽车股份有限公司 | Air spring airbag and preparation method therefor and application thereof |
| CN114790311A (en) * | 2022-03-29 | 2022-07-26 | 临海伟星新型建材有限公司 | Multilayer bathroom hose and preparation method thereof |
| CN114790311B (en) * | 2022-03-29 | 2024-01-09 | 临海伟星新型建材有限公司 | Multi-layer bathroom hose and preparation method thereof |
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