CN113464752A - Extrusion type RTP electric melting pipe fitting and processing technology thereof - Google Patents
Extrusion type RTP electric melting pipe fitting and processing technology thereof Download PDFInfo
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- CN113464752A CN113464752A CN202110750764.2A CN202110750764A CN113464752A CN 113464752 A CN113464752 A CN 113464752A CN 202110750764 A CN202110750764 A CN 202110750764A CN 113464752 A CN113464752 A CN 113464752A
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- plastic
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- inner layer
- pipe fitting
- glass fiber
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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
- F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
- F16L47/02—Welded joints; Adhesive joints
- F16L47/03—Welded joints with an electrical resistance incorporated in the joint
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/885—External treatment, e.g. by using air rings for cooling tubular films
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/911—Cooling
- B29C48/9115—Cooling of hollow articles
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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
Abstract
The invention discloses an extrusion type RTP (real-time transport protocol) electric melting pipe fitting and a processing technology thereof, wherein a glass fiber reinforced layer is wound on the surface of a plastic inner layer, a plastic outer layer is coated on the surface of the glass fiber reinforced layer, a stepped bellmouth is formed in an inner cavity of the plastic inner layer, and electric heating wire layers are symmetrically connected to two ends of the inner cavity of the plastic inner layer in a pressing mode. This extrude type RTP electric smelting pipe fitting and processing technology thereof, what adopt is that polyethylene and glass fibre reinforcing preimpregnation area are the base member, during the connection, utilize pipe fitting inlayer heat-generating body with the outer plastics of pipe fitting and the melting of pipe fitting inlayer plastics, be in the same place the reliable connection of tubular product and pipe fitting, tubular product when having guaranteed to have the flexibility, the body rigidity can bear the outside change in the installation and not cause the deformation better, thin wall tubular product connects and shortens the welding time, electric smelting erection joint is convenient, greatly increase the butt fusion area, make to connect more reliably, do not have the influence of welding ring to the pipeline latus rectum.
Description
Technical Field
The invention relates to the technical field of electric melting pipe fittings, in particular to an extrusion type RTP electric melting pipe fitting and a processing technology thereof.
Background
Electrofusion pipe means a plastic (polyethylene) pipe fitting that can be fused to join by the temperature generated by an electric current. The capacity is a main parameter, in some low-voltage circuits, the requirement on voltage is not high, and only the standard safety number is needed, because the substrate of the electric melting pipe fitting is made of PE material, the two problems of the traditional pipeline are solved together with a PE pipeline system consisting of PE pipes: corrosion and joint leaks. Its advantages are mainly embodied as follows: (1) corrosion resistance: the service life is long; (2) no leakage at the joint: the electric melting pipe fittings are adopted for connection, so that the identity of the interface material and structure of the PE pipeline system and the pipe body is essentially ensured, and the integration of the joint and the pipe is realized; (3) underground movement and end loads can be effectively resisted: after the PE pipeline system is connected by adopting a welding method, the joint based on the method can resist end load, and joint leakage can not occur. At the same time, the stress relaxation properties of PE are effective in dissipating stress through deformation, so that in joints and bends, in many cases, no expensive anchoring is required. And in addition, on the basis of high toughness, the elongation at break is generally over 500 percent, and the adaptability of the PE pipeline system to the uneven settlement of the pipe base is very strong.
However, the existing electric melting pipe fittings have the following problems when in use:
(1) the bearing of the external change in the installation process is easy to deform, and the welding time is long.
(2) The welding area is small, and the welding ring can influence the drift diameter of the pipeline.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides an extrusion type RTP (real-time transport protocol) electric melting pipe fitting and a processing technology thereof, and solves the problems that the pipe fitting is easy to deform, long in welding time, small in welding area and capable of causing influence on the diameter of a pipeline by a welding ring in the process of bearing external changes in the installation process.
In order to achieve the purpose, the invention is realized by the following technical scheme: an extrusion type RTP electric melting pipe fitting comprises an electric heating wire layer, a plastic inner layer, a glass fiber reinforced layer and a plastic outer layer, wherein the glass fiber reinforced layer is wound on the surface of the plastic inner layer;
the preparation method of the RTP composite pressure pipe fitting comprises the following steps:
firstly, extruding an RTP plastic composite pipe; adding the PE100 material into an extruder body of an extrusion device, extruding the plastic inner layer, wrapping the electric heating wire layer in the plastic inner layer through extrusion during extrusion, shaping and cutting to length after extrusion, and winding the reinforced glass fiber prepreg tape on the plastic inner layer at an inclined angle to form the glass fiber reinforced layer;
extruding the PE100 material through an extruding device, adding the PE material into an extruder body, extruding the plastic outer layer, carrying out vacuum sizing after extrusion, conveying the extruded plastic outer layer into a pipeline output box, blowing out residual hot air through air outlet of a first fan, sucking in hot air through an air suction hopper through a second fan, outputting the hot air through an air outlet pipeline, conveying the hot air through a conveying wheel, conveying cold air on a semiconductor refrigerator to the surface of the plastic outer layer through an arc-shaped groove by the conveying wheel, rapidly forming the plastic outer layer, and shaping and cutting the extruded plastic outer layer;
thirdly, turning the plastic inner layer into the plastic outer layer through a lathe;
step four, during assembly, inserting the pipe into the plastic inner layer, attaching the pipe to the step bellmouth, electrifying the electric heating wire layer to melt the plastic of the outer layer of the pipe and the plastic of the plastic inner layer, and connecting the pipe and the pipe fitting together;
and fifthly, plugging two ends of the composite pipe by using plastic, and installing connecting terminals.
As a further scheme of the invention: the plastic inner layer and the plastic outer layer are both made of PE100 plastic materials.
As a further scheme of the invention: the glass fiber reinforced layer is wound on the surface of the plastic inner layer at an inclined angle through a continuous glass fiber reinforced polypropylene prepreg tape.
As a further scheme of the invention: the outer diameter of the electric heating wire layer is matched with the inner diameter of the plastic inner layer.
As a further scheme of the invention: the binding post is made of PE plastic.
The extruding equipment comprises an extruder body, wherein the left side of the extruder body is communicated with a pipeline output box, the left side of the extruder body is fixedly connected with a first fan, an air outlet of the first fan is communicated with an air outlet pipeline, an inner cavity of the pipeline output box is respectively and fixedly connected with a blowing box and a fixed seat, one end of the air outlet pipeline is communicated with the surface of the blowing box, the blowing box is sleeved on the surface of the extruding pipeline, an inner cavity of the fixed seat is fixedly connected with a semiconductor refrigerator, the surface of the pipeline output box is fixedly connected with a driving motor, one end of an output shaft of the driving motor penetrates through the surface of the pipeline output box and extends to the inner cavity of the pipeline output box, the surface of the output shaft of the driving motor is rotatably connected with the inner cavity of the pipeline output box, and the surface of the output shaft of the driving motor, which is positioned in the inner cavity of the pipeline output box, is fixedly connected with a conveying wheel, the surface of delivery wheel and semiconductor cooler's surface swing joint, the arc wall with the surface adaptation of pipeline is seted up on the surface of delivery wheel, the bottom fixedly connected with fixed case of pipeline delivery box, the inner chamber fixedly connected with second fan of fixed case, the inner chamber fixedly connected with air draft fill of pipeline delivery box, the surface intercommunication of pipeline and air draft fill is passed through at the suction opening of second fan, and the air outlet intercommunication of second fan has the pipeline of blowing, the pipeline of blowing runs through and extends to the below of fixed case.
The invention also discloses a processing technology of the extrusion type RTP electric melting pipe fitting, and the preparation method of the RTP composite pressure pipe fitting comprises the following steps:
s1, extruding and molding the plastic inner layer, and symmetrically pressing and connecting the electric heating wire layers to two ends of the inner cavity of the plastic inner layer;
s2, extruding the plastic outer layer, and shaping and cutting;
and S3, turning the plastic inner layer into the plastic outer layer through a lathe.
Advantageous effects
The invention provides an extrusion type RTP electric melting pipe fitting and a processing technology thereof. Compared with the prior art, the method has the following beneficial effects:
1. the utility model provides an extrude type RTP electric smelting pipe fitting and processing technology, through the surface of the winding of glass fiber reinforcement layer at the plastics inlayer, the outer cladding of plastics is on the surface of glass fiber reinforcement layer, the step bellmouth has been seted up to the inner chamber of plastics inlayer, the outer surface veneer of plastics has the terminal with electric heater layer electric connection, what adopt is polyethylene and glass fiber reinforcement preimpregnation area as the base member, during the connection, utilize pipe fitting inlayer heat-generating body with pipe fitting outer plastics and pipe fitting inlayer plastics melting, reliable linking together tubular product and pipe fitting, tubular product when having guaranteed to have the flexibility, the body rigidity can bear the outside change in the installation and not lead to the deformation better, thin wall tubular product connects and shortens the welding time, electric smelting erection joint is convenient, greatly increases the weld area, makes to connect more reliably, does not have the influence of welding ring to the pipeline latus rectum.
2. An extrusion type RTP electric melting pipe fitting and a processing technology thereof are provided, wherein a first fan is fixedly connected on the left side of an extruder body, an air outlet of the first fan is communicated with an air outlet pipeline, an inner cavity of a pipeline output box is respectively and fixedly connected with a blowing box and a fixed seat, one end of the air outlet pipeline is communicated with the surface of the blowing box, the blowing box is sleeved on the surface of the extrusion pipeline, an inner cavity of the fixed seat is fixedly connected with a semiconductor refrigerator, the surface of the pipeline output box is fixedly connected with a driving motor, one end of an output shaft of the driving motor penetrates through the surface of the pipeline output box and extends to the inner cavity of the pipeline output box, the surface of the output shaft of the driving motor is rotatably connected with the inner cavity of the pipeline output box, the output shaft of the driving motor is fixedly connected with a conveying wheel on the surface of the inner cavity of the pipeline output box, and the surface of the conveying wheel is movably connected with the surface of the semiconductor refrigerator, the surface of the conveying wheel is provided with an arc-shaped groove matched with the surface of the pipeline, the bottom of the pipeline output box is fixedly connected with a fixed box, the inner cavity of the fixed box is fixedly connected with a second fan, the inner cavity of the pipeline output box is fixedly connected with an air suction hopper, an air suction opening of the second fan is communicated with the surface of the air suction hopper through the pipeline, an air outlet of the second fan is communicated with an air blowing pipeline, the air blowing pipeline penetrates through and extends to the lower part of the fixed box to co-extrude the plastic inner layer and the plastic outer layer, the extruded plastic inner layer and the plastic outer layer are conveyed into the pipeline output box through vacuum sizing, the residual hot air is blown away through the air outlet of the first fan, the hot air is sucked into the air suction hopper through the second fan, the hot air is output through an air outlet pipeline and then is conveyed through the conveying wheel, and the conveying wheel transmits the cold air on the semiconductor refrigerator to the surface of the plastic outer layer through the arc-shaped groove to rapidly mold the plastic outer layer, quick shaping after crowded shaping altogether, carry through the delivery wheel, prevent that the surface from receiving external extrusion because of not shaping and causing the type to become for the pipeline finished product quality that produces is better.
Drawings
Fig. 1 is a schematic external structural view of an electrofused pipe fitting of the present invention;
fig. 2 is a half-sectional view of an electrofusion pipe fitting of the present invention;
fig. 3 is a cross-sectional view of an electrofused pipe fitting of the present invention;
FIG. 4 is a schematic view of the structural connection of the extrusion apparatus of the present invention;
FIG. 5 is a cross-sectional view of the construction of the pipe outlet box of the present invention;
fig. 6 is a structural side view of the conveying wheel of the present invention.
In the figure: 11. a plastic inner layer; 12. a glass fiber reinforced layer; 13. a plastic outer layer; 14. a stepped socket; 15. an electric heating wire layer; 16. a binding post; 21. an extruder body; 22. a pipeline output box; 23. a first fan; 24. an air outlet pipeline; 25. a blow box; 26. a fixed seat; 27. a semiconductor refrigerator; 28. a drive motor; 29. a delivery wheel; 210. an arc-shaped slot; 211. a fixed box; 212. a second fan; 213. an air draft hopper; 214. and blowing a pipeline.
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. 1-6, the present invention provides a technical solution: an extrusion type RTP (real-time transport protocol) electric melting pipe fitting comprises a plastic inner layer 11, a glass fiber reinforced layer 12 and a plastic outer layer 13, wherein the glass fiber reinforced layer 12 is wound on the surface of the plastic inner layer 11, the plastic outer layer 13 is coated on the surface of the glass fiber reinforced layer 12, a step bellmouth 14 is formed in an inner cavity of the plastic inner layer 11, an electric heating wire layer 15 is symmetrically connected to two ends of the inner cavity of the plastic inner layer 11 in a pressing and pressing mode, a binding post 16 electrically connected with the electric heating wire layer 15 is glued on the surface of the plastic outer layer 13, when the connection is carried out, the plastic on the outer layer of the pipe fitting and the plastic on the inner layer of the pipe fitting are melted by using a heating body on the inner layer of the pipe fitting, the pipe fitting and the pipe fitting are reliably connected together, the pipe fitting are flexible, the rigidity of the body is good, the external change in the installation process can be borne without deformation, the joint of the thin-wall pipe fitting shortens the welding time, the electric melting installation and connection are convenient, the welding area is greatly increased, and the connection is more reliable, the influence of the welding ring on the drift diameter of the pipeline does not exist;
the preparation method of the RTP composite pressure pipe fitting comprises the following steps:
firstly, extruding an RTP plastic composite pipe; adding the PE100 material into an extruder body 21 of an extrusion device, extruding the plastic inner layer 11, wrapping the electric heating wire layer 15 in the plastic inner layer 11 by extrusion during extrusion, shaping and cutting to length after extrusion, and winding the reinforced glass fiber prepreg tape on the plastic inner layer 11 at an inclined angle to form the glass fiber reinforced layer 12;
secondly, extruding the PE100 material through an extruding device, adding the PE material into an extruder body 21, extruding the plastic outer layer 13, carrying out vacuum sizing after extrusion, conveying the extruded plastic outer layer into a pipeline output box 22, blowing out air through a first fan 23 to blow away residual hot air, sucking in the hot air through an air suction hopper 213 through a second fan 212, outputting the hot air through an air outlet pipeline 24, conveying the hot air through a conveying wheel 29, conveying cold air on a semiconductor refrigerator 27 to the surface of the plastic outer layer 13 through an arc-shaped groove 210 by the conveying wheel 29, rapidly forming the plastic outer layer 13, and shaping and cutting the extruded plastic outer layer;
step three, turning the plastic inner layer 11 into the plastic outer layer 13 through a lathe;
step four, when assembling, inserting the pipe into the plastic inner layer 11, attaching the pipe to the step bellmouth 14, electrifying the electric heating wire layer 15 to melt the outer layer plastic of the pipe and the plastic of the plastic inner layer 11, and connecting the pipe and the pipe fitting together;
fifthly, plugging two ends of the composite pipe by using plastic, and installing connecting terminals;
the plastic inner layer 11 and the plastic outer layer 13 are both made of PE100 plastic; the glass fiber reinforced layer 12 is wound on the surface of the plastic inner layer 11 at an inclined angle through a continuous glass fiber reinforced polypropylene prepreg tape; the outer diameter of the electric heating wire layer 15 is matched with the inner diameter of the plastic inner layer 11; the binding post 16 is made of PE plastic;
the extruding equipment comprises an extruder body 21, the left side of the extruder body 21 is communicated with a pipeline output box 22, the left side of the extruder body 21 is fixedly connected with a first fan 23, an air outlet of the first fan 23 is communicated with an air outlet pipeline 24, an inner cavity of the pipeline output box 22 is respectively and fixedly connected with a blowing box 25 and a fixed seat 26, one end of the air outlet pipeline 24 is communicated with the surface of the blowing box 25, the blowing box 25 is sleeved on the surface of the extruding pipeline, the inner cavity of the fixed seat 26 is fixedly connected with a semiconductor refrigerator 27, the surface of the pipeline output box 22 is fixedly connected with a driving motor 28, one end of an output shaft of the driving motor 28 penetrates through the surface of the pipeline output box 22 and extends to the inner cavity of the pipeline output box 22, the surface of the output shaft of the driving motor 28 is rotatably connected with the inner cavity of the pipeline output box 22, and the surface of the output shaft of the driving motor 28, which is positioned in the inner cavity of the pipeline output box 22, is fixedly connected with a conveying wheel 29, the surface of the conveying wheel 29 is provided with an arc-shaped groove 210 matched with the surface of the pipeline, the bottom of the pipeline output box 22 is fixedly connected with a fixed box 211, the inner cavity of the fixed box 211 is fixedly connected with a second fan 212, the inner cavity of the pipeline output box 22 is fixedly connected with an air suction hopper 213, an air suction opening of the second fan 212 is communicated with the surface of the air suction hopper 213 through the pipeline, an air outlet of the second fan 212 is communicated with an air blowing pipeline 214, the air blowing pipeline 214 penetrates through and extends to the lower part of the fixed box 211 to co-extrude the plastic inner layer 11 and the plastic outer layer 13, the plastic inner layer 11 and the plastic outer layer 13 are conveyed into the pipeline output box 22 after extrusion through vacuum sizing, the residual hot air is blown away through the air outlet of the first fan 23, the hot air is sucked into the air suction hopper 213 through the second fan 212 and is output through the air outlet pipeline 24 and then is conveyed through the conveying wheel 29, the conveying wheel 29 transmits cold air on the semiconductor refrigerator 27 to the surface of the plastic outer layer 13 through the arc-shaped groove 210, make the outer 13 of plastics carry out the shaping fast, quick shaping after the crowded shaping altogether is carried through delivery wheel 29, prevents that the surface from receiving external extrusion because of not the shaping and causing the type to become for the pipeline finished product quality that produces is better, delivery wheel 29's the surface and semiconductor cooler 27's surface swing joint.
The invention also discloses a processing technology of the extrusion type RTP electric melting pipe fitting, and the preparation method of the RTP composite pressure pipe fitting comprises the following steps:
s1, extruding and molding the plastic inner layer 11, and symmetrically pressing and connecting the electric heating wire layers 15 to two ends of the inner cavity of the plastic inner layer 11;
s2, extruding the plastic outer layer 13, and shaping and cutting;
and S3, turning the plastic inner layer 11 into the plastic outer layer 13 through a lathe.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation and a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention. Furthermore, "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate member, or they may be connected through two or more elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (6)
1. An extrusion type RTP electric smelting pressure pipe fitting which characterized in that: the glass fiber reinforced plastic electric heating wire comprises an electric heating wire layer (15), a plastic inner layer (11), a glass fiber reinforced layer (12) and a plastic outer layer (13), wherein the glass fiber reinforced layer (12) is wound on the surface of the plastic inner layer (11), the plastic outer layer (13) is coated on the surface of the glass fiber reinforced layer (12), a stepped socket (14) is formed in the inner cavity of the plastic inner layer (11), the electric heating wire layer (15) is symmetrically connected to two ends of the inner cavity of the plastic inner layer (11) in a pressing mode, and binding posts (16) electrically connected with the electric heating wire layer (15) are glued on the surface of the plastic outer layer (13);
the preparation method of the RTP composite pressure pipe fitting comprises the following steps:
firstly, extruding an RTP plastic composite pipe; adding a PE100 material into an extruder body (21) of an extrusion device, extruding a plastic inner layer (11), wrapping an electric heating wire layer (15) inside the plastic inner layer (11) through extrusion during extrusion, shaping and cutting to length after extrusion, and winding the reinforced glass fiber prepreg tape on the plastic inner layer (11) at an inclined angle to form a glass fiber reinforced layer (12);
secondly, extruding the PE100 material through an extruding device, adding the PE material into an extruder body (21), extruding the plastic outer layer (13), carrying out vacuum sizing after extrusion, conveying the extruded PE material into a pipeline output box (22), blowing away residual hot air through air outlet of a first fan (23), sucking hot air into an air suction hopper (213) through a second fan (212), outputting the hot air through an air outlet pipeline (24), conveying the hot air through a conveying wheel (29), conveying cold air on a semiconductor refrigerator (27) to the surface of the plastic outer layer (13) through an arc-shaped groove (210) by the conveying wheel (29), rapidly forming the plastic outer layer (13), and shaping and cutting the extruded plastic outer layer;
thirdly, turning the plastic inner layer (11) into the plastic outer layer (13) through a lathe;
step four, during assembly, inserting the pipe into the plastic inner layer (11), attaching the pipe to the step bellmouth (14), electrifying the electric heating wire layer (15) to melt the outer plastic of the pipe and the plastic of the plastic inner layer (11), and connecting the pipe and the pipe fitting together;
and fifthly, plugging two ends of the composite pipe by using plastic, and installing connecting terminals.
2. An extruded RTP electrofusion tube as claimed in claim 1, wherein: the plastic inner layer (11) and the plastic outer layer (13) are both made of PE100 plastic materials.
3. An extruded RTP electrofusion tube as claimed in claim 1, wherein: the glass fiber reinforced layer (12) is wound on the surface of the plastic inner layer (11) at an inclined angle through a continuous glass fiber reinforced polypropylene prepreg tape.
4. An extruded RTP electrofusion tube as claimed in claim 1, wherein: the outer diameter of the electric heating wire layer (15) is matched with the inner diameter of the plastic inner layer (11).
5. An extruded RTP electrofusion tube as claimed in claim 4, wherein: the binding post (16) is made of PE plastic.
6. A processing technology of an extrusion type RTP electric melting pipe fitting is characterized in that: the method comprises the following steps:
s1, extruding and molding the plastic inner layer (11), and symmetrically pressing and connecting the electric heating wire layers (15) to two ends of the inner cavity of the plastic inner layer (11);
s2, extruding the plastic outer layer (13) and then shaping and cutting;
s3, turning the plastic inner layer (11) into the plastic outer layer (13) through a lathe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110750764.2A CN113464752A (en) | 2021-07-02 | 2021-07-02 | Extrusion type RTP electric melting pipe fitting and processing technology thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110750764.2A CN113464752A (en) | 2021-07-02 | 2021-07-02 | Extrusion type RTP electric melting pipe fitting and processing technology thereof |
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| CN113464752A true CN113464752A (en) | 2021-10-01 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115013602A (en) * | 2022-06-10 | 2022-09-06 | 宁夏青龙塑料管材有限公司 | Electric melting pipe fitting for high-pressure composite pipeline and manufacturing method thereof |
| CN117601456A (en) * | 2024-01-22 | 2024-02-27 | 四川省宜宾普什建材有限责任公司 | Processing technology of large-caliber electric melting type plastic pipe fitting |
-
2021
- 2021-07-02 CN CN202110750764.2A patent/CN113464752A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115013602A (en) * | 2022-06-10 | 2022-09-06 | 宁夏青龙塑料管材有限公司 | Electric melting pipe fitting for high-pressure composite pipeline and manufacturing method thereof |
| CN117601456A (en) * | 2024-01-22 | 2024-02-27 | 四川省宜宾普什建材有限责任公司 | Processing technology of large-caliber electric melting type plastic pipe fitting |
| CN117601456B (en) * | 2024-01-22 | 2024-03-26 | 四川省宜宾普什建材有限责任公司 | Processing technology of large-caliber electric melting type plastic pipe fitting |
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