CN109291477A - Two-way reinforced composite pipe of thermoplasticity continuous glass-fiber prepreg tape journal axle and preparation method thereof - Google Patents

Two-way reinforced composite pipe of thermoplasticity continuous glass-fiber prepreg tape journal axle and preparation method thereof Download PDF

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Publication number
CN109291477A
CN109291477A CN201811142785.0A CN201811142785A CN109291477A CN 109291477 A CN109291477 A CN 109291477A CN 201811142785 A CN201811142785 A CN 201811142785A CN 109291477 A CN109291477 A CN 109291477A
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China
Prior art keywords
layer
prepreg tape
radially
film
pipe
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Pending
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CN201811142785.0A
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Chinese (zh)
Inventor
林世平
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Shanghai Plastic Ltd By Share Ltd
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Shanghai Plastic Ltd By Share Ltd
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Application filed by Shanghai Plastic Ltd By Share Ltd filed Critical Shanghai Plastic Ltd By Share Ltd
Priority to CN201811142785.0A priority Critical patent/CN109291477A/en
Publication of CN109291477A publication Critical patent/CN109291477A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28Shaping operations therefor
    • B29C70/30Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D23/00Producing tubular articles
    • B29D23/001Pipes; Pipe joints
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L57/00Protection of pipes or objects of similar shape against external or internal damage or wear
    • F16L57/02Protection of pipes or objects of similar shape against external or internal damage or wear against cracking or buckling
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00Rigid pipes
    • F16L9/14Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups

Abstract

The present invention relates to thermoplastic manufacturing fields, specially two-way reinforced composite pipe of a kind of thermoplasticity continuous glass-fiber prepreg tape journal axle and preparation method thereof.A kind of two-way reinforced composite pipe of thermoplasticity continuous glass-fiber prepreg tape journal axle, including liner layer (11), it is characterized in that, it further include enhancing sandwich layer (12) and surface layer pipe (13), liner layer (11), enhancing sandwich layer (12) and surface layer pipe (13) this three are successively arranged from the inside to the outside, and enhancing sandwich layer (12) includes radially reinforced layer (121) and axial enhancement layer (122) from the inside to the outside.The preparation method of the two-way reinforced composite pipe of a kind of thermoplasticity continuous glass-fiber prepreg tape journal axle, it is characterized in that: successively implementing as follows: 1. squeezing internal layer;2. twining radial layer;3. twining axial layer;4. squeezing surface layer;5. being formed.The configuration of the present invention is simple, easily manufactured, mechanical performance is high.

Description

Two-way reinforced composite pipe of thermoplasticity continuous glass-fiber prepreg tape journal axle and preparation method thereof
Technical field
The present invention relates to thermoplastic manufacturing field, the specially two-way increasings of a kind of thermoplasticity continuous glass-fiber prepreg tape journal axle Strong multiple tube and preparation method thereof.
Background technique
Continuous glass-fiber enhances thermoplastic pipe system, winds continuously unidirectional glass via hot melt wrapping machine circumferential direction melting and presoaks After band, have the characteristics that high heat resistance, high voltage, light weight, the burn into service life is not long, product quality is being greatly improved and is expanding On the basis of product purpose, the material utilization amount of manufacture pipeline can be greatly reduced by the high tensile of prepreg tape, realize low Cost, which makes continuous glass-fiber, enhances thermoplastic pipe system, is the direction of the following pipeline development.
The prepreg tape of this unidirectional circumferential hot melt winding, is to decompose axial direction by prepreg tape and tubing axial direction winding angle It with circumferential tensile stress and circumference stress, is calculated and is satisfied with by the laying tubing sandwich layer prepreg tape number of plies under normal conditions Composite pipe pipe fitting bears circumference stress both pumped (conveying) medium operating pressure requirements, the multiple tube of this preimpregnation band structure design enhancing It usually can satisfy in the pipe-line system of DN500mm diameter and pressure less than 2.0MPa, the reason is that the circumferential high-strength company of thin-walled Continuous fiber reinforcement pipeline, axial tensile strength are unable to satisfy major diameter and answer with axial tension caused by High Voltage pipe-line system The requirement that power increases at geometry grade.Such as a kind of continuous fiber reinforced thermoplastic compound tube of patent CN200810229501, the hair It is bright to disclose a kind of continuous fiber reinforced thermoplastic compound tube, belong to bimetallic tube technical field.This compound pipeline complex pipeline can be set Count at least three-decker, and in each layer all with thermoplastic resin be its matrix, with the continuous fiber of different content or its knit Object is its reinforcing material, and continuous fiber or its fabric are in a longitudinal fashion, canoe and weaving manner be laid with.This compound pipeline complex pipeline The performances such as shock resistance, ageing-resistant, temperature tolerance, weatherability can be improved, every layer of structural material of this compound pipeline complex pipeline is made Optimum optimization is obtained using with performance, can not only save a large amount of material, but also there is more excellent mechanical property and change Performance, but circumferential and axial stress cannot be improved simultaneously and use denaturation energy.A kind of continuous fibre of patent CN201310123058 The production method and wind of dimension winding enhancing thermoplastic pipe, the patent of invention provide a kind of continuous fiber winding enhancing heat The production method and wind of plastic tube, belong to pipeline production technical field.It solves existing continuous fiber winding and increases Heat-flash plastic tube be easy to cause the secondary damage of continuous fiber to generate filoplume or fracture during the preparation process, reduces continuous fiber Performance, the slickness of the pipeline outer wall of preparation and the problem that the robustness of pipeline is poor, strength character is unstable. A kind of high temperature resistant of CN201410038369, high pressure resistant enhancing thermoplastic composite tube and its process units disclosure of the invention are a kind of resistance to High temperature, high pressure resistant enhancing thermoplastic composite tube successively include inner tube, enhancement layer, outer tube from inside to outside;Said inner tube and enhancement layer Between be provided with internal insulation, outer heat insulation layer is provided between the enhancement layer and outer tube.CN201120466107 is a kind of continuous The multiple pipe of fiber prepreg tape winding enhancing
The patent includes tube wall outer layer and tube wall internal layer, and compound setting is by continuous glass between the tube wall internal layer and tube wall outer layer Glass fiber PE prepreg tape cross-helicity is wrapped in enhancement layer made of tube wall internal layer surface, and enhancement layer cross winding is in tube wall internal layer Outer surface, and be integrally formed with tube wall internal layer, the fusion of tube wall outer layer.The utility model obtains compound by using above-mentioned technology Pipe, novel in design, structurally reasonable, the shortcomings that overcoming both metal tube and steel-plastics composite pipe, using continuous glass-fiber PE prepreg tape The problem of cross winding is integrated as middle reinforcement layer, three layers of fusion, and production technology is controllable, and interfacial separation is not present, and it is resistance to Compressive Strength is high, cost is also greatly lowered, and has very high cost performance.CN201310705553 continuous fiber reinforcement polyolefin is multiple It closes pipe and its preparation process patent is related to a kind of continuous fiber reinforcement polyolefin multiple tube and its preparation process, including internal layer modeling Interior hot melt adhesive layer is arranged outside, continuous fiber impregnated tape is arranged outside interior hot melt adhesive layer for expects pipe, the inner layer plastic tube, and continuous fiber soaks External hot melting glue-line is set outside stain band, outer layer plastic tube is set outside external hot melting glue-line, which effectively increases the resistance to of composite pipe Compressive Strength, multiple tube crushed material can directly have longer glass with recycling and reusing, simple process and low cost, and in crushed material Fibre is used as reinforcing material, which can be used as high-intensitive enhancing modified materials and use.
It is enhancing that sum up all patents, which are all not involved with high pressure and large-diameter pipeline after being satisfied with circumferential pressure, Axial stress and the Strengthening Design made.
With the pipe-line system of pressure, the more big corresponding axial tension stress of its bigger basal area of caliber increases at geometry grade;Together Its basal area of the pipe-line system of caliber is identical, but increases exponentially as pressure increases exponentially its axial tension stress.
The continuous fiber prepreg tape reinforced plastic pipe road sold in the market, also all by circumferential unidirectional prepreg tape heat It is molten to be wound into pipeline sandwich layer and axis into 20 ° ~ 55 ° angle distribution mechanics to be satisfied with 2.0MPaDN500mm or less pipe-line system pair The requirement of axial tensile stress, once > 2.0MPa pipe-line system additionally increases multi-level continuous fiber preimpregnation it is necessary to rely on It brings and improves pipeline axial tensile-strength, manufactured to pipeline and increase significant cost.
Summary of the invention
In order to overcome the drawbacks of the prior art, provide that a kind of mechanical performance is high, thermoplasticity material of the two-way enhancing of radial-axial Material, the invention discloses two-way reinforced composite pipes of a kind of thermoplasticity continuous glass-fiber prepreg tape journal axle and preparation method thereof.
The present invention reaches goal of the invention by following technical solution:
A kind of two-way reinforced composite pipe of thermoplasticity continuous glass-fiber prepreg tape journal axle, including liner layer, characterized in that further include enhancing Sandwich layer and surface layer pipe, liner layer, enhancing sandwich layer and surface layer pipe this three are successively arranged from the inside to the outside,
Enhancing sandwich layer includes radially reinforced layer from the inside to the outside and axial enhancement layer, and at least two layers of radially reinforced layer, every layer Radially reinforced layer is made of the oblique winding of prepreg tape, and the angle of the prepreg tape and liner layer central axis that constitute radially reinforced layer exists 45 °~85 °, the angle between the prepreg tape of the radially reinforced layer of adjacent two layers is not less than 90 °,
At least two layers of axial enhancement layer, every layer of axial enhancement layer is made of preimpregnation film axial direction paving, constitutes axial enhancement layer Preimpregnation film and liner layer central axis angle at 0~30 °, the angle between the preimpregnation film of adjacent two layers axial direction enhancement layer is not Greater than 45 °,
Liner layer, enhancing sandwich layer and surface layer pipe this three rely under tension the hot melt of isomorphous structural plastics pass through heat it is molten It connects to form three layers whole of multiple tube;
It can be played to be greatly improved with the axial enhancement layer of prepreg tape composition and resist axial stress, prevent high pressure and large-diameter pipeline axial Big stress causes deformation, reduction pipeline to expand with heat and contract with cold and cause the effect of axial stress deformation, compared with circumferential direction winding prepreg tape according to angle Prepreg tape can be greatly reduced using the number of plies in the effect that degree distribution pulling force can be improved 5 times or more, had not only saved manufacturing cost but also had subtracted Light pipeline weight.
The two-way reinforced composite pipe of thermoplasticity continuous glass-fiber prepreg tape journal axle, it is characterized in that: enhancing sandwich layer passes through in advance Leaching band hot melt wrapping machine, intersected with multi-level angle, pressurize in heating, the side prepreg tape that is arranged radially of winding it is molten be attached to it is interior Liner outer surface forms radially reinforced layer, by presoak film axial direction film-laying machine, with multilayer secondary side heating, while tensioning, while paving axis Axial enhancement layer is formed in the outer surface of radially reinforced layer to the preimpregnation film of setting, to form enhancing sandwich layer.
The preparation method of the two-way reinforced composite pipe of thermoplasticity continuous glass-fiber prepreg tape journal axle, it is characterized in that: by such as Lower step is successively implemented:
1. squeezing internal layer: first producing the tubular liner layer of plastic material with extruder and mold;
2. twining radial layer: using liner layer as bed die, wrapping machine is heated by prepreg tape, heated with multi-level angle intersection, side, It is wound in tensioning, the prepreg tape being arranged radially is wrapped on the outer surface of liner layer;
3. twining axial layer: using the prepreg tape being arranged radially as bed die, by presoaking film film-laying machine, with the heating of multilayer secondary side, side It draws, by the preimpregnation film paving being axially arranged on the prepreg tape outer surface being arranged radially;
4. squeezing surface layer: producing the melt of surface layer pipe with extruder and mold, the melt of surface layer pipe is covered on to enhance sandwich layer For on the outer surface of bed die;
5. sizing: being formed, obtained by prepreg tape in radially reinforced, preimpregnation film in axial increasing by cooler bin water tank spraying cooling The multiple tube of strong two-way enhancing.
The preparation method of the two-way reinforced composite pipe of thermoplasticity continuous glass-fiber prepreg tape journal axle, it is characterized in that:
Step 2. when, at 45 °~85 °, adjacent two layers radially increase for the angle of the prepreg tape and liner layer central axis that are arranged radially Angle between the prepreg tape of strong layer is not less than 90 °;
Step 3. when, at 0~30 °, adjacent two layers axially enhance the angle of the preimpregnation film and liner layer central axis that are axially arranged Angle between the preimpregnation film of layer is not more than 45 °.
The prepreg tape refers to that thermoplasticity continuous glass fibre prepreg tape, the preimpregnation film refer to the continuous glass of thermoplasticity Glass fiber prepreg film, the plastic material refers to thermoplastic, including PP, PE, PVC, PA etc..
The present invention is according to axial stress size produced by different pipeline pressure and different large-diameter pipelines, by increasing The outer surface layer of strong sandwich layer lays the thermoplastic prepreg that is laminated at many levels to improve the anti-axial stress of pipe-line system and reduce axis To the purpose of strain, then it is satisfied with the requirement of high pressure and large diameter piping system, and reduce axis caused by the temperature difference To strain, linear expansion coefficient is reduced.
The continuous glass-fiber prepreg tape, thickness are plastics in 50% ~ 70% surplus in 0.2mm ~ 0.5mm, glass fiber content, The width used changes big according to pipe diameter size or changes according to winding angle.
The continuous glass-fiber presoaks film, and thickness is plastics in 50% ~ 70% surplus in 0.2mm ~ 0.5mm, glass fiber content, It is under normal circumstances the 1/2 ~ quarter turn length for being melt patch pipeline outer wall, is affixed on circumferential winding by the way that axial film-laying machine is directly molten Prepreg tape outer wall on.
The beneficial effects of the present invention are: structure is simple, easily manufactured, mechanical performance is high.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Specific embodiment
The present invention is further illustrated below by way of specific embodiment.
Embodiment 1
A kind of two-way reinforced composite pipe of thermoplasticity continuous glass-fiber prepreg tape journal axle, including liner layer 11, enhancing sandwich layer 12 and surface layer Pipe 13, as shown in Figure 1, specific structure is:
Liner layer 11, enhancing sandwich layer 12 and surface layer pipe 13 this three are successively arranged from the inside to the outside,
Enhancing sandwich layer 12 includes radially reinforced layer 121 and axial enhancement layer 122 from the inside to the outside, and radially reinforced layer 121 is at least Two layers, every layer of radially reinforced layer 121 is made of the oblique winding of prepreg tape 21, constitutes 21 He of prepreg tape of radially reinforced layer 121 Angle of the angle of 11 central axis of liner layer between 45 °~85 °, the prepreg tape 21 of the radially reinforced layer 121 of adjacent two layers is not Less than 90 °,
At least two layers of axial enhancement layer 122, every layer of axial enhancement layer 122 are made of 22 paving of preimpregnation film, constitute axial increase The angle of the preimpregnation film 22 of strong layer 122 and 11 central axis of liner layer is at 0~30 °, the preimpregnation of adjacent two layers axial direction enhancement layer 122 Angle between film 22 is not more than 45 °,
Liner layer 11, enhancing sandwich layer 12 and surface layer pipe 13 this three rely on the hot melt of isomorphous structural plastics to pass through under tension Heat welded forms three layers whole of multiple tube 1;
With preimpregnation film 22 constitute axial enhancement layer 122 can play resist axial stress, prevent high pressure and large-diameter pipeline axially big Stress causes deformation, reduction pipeline to expand with heat and contract with cold and cause the effect of axial stress deformation.
In the present embodiment: enhancing sandwich layer 12 by prepreg tape heat wrapping machine, with multi-level angle intersect, while heat, while Pressurization, the side prepreg tape 21 that is arranged radially of winding be molten to be attached to 11 outer surface of liner layer and forms radially reinforced layer 121, and preimpregnation film is passed through Film-laying machine, with the heating of multilayer secondary side, while tensioning, while the preimpregnation film 22 that is axially arranged of paving in the outer surface of radially reinforced layer 121 Axial enhancement layer 122 is formed, to form enhancing sandwich layer 12.
When prepared by the present embodiment, successively implement as follows:
1. squeezing internal layer: first producing the tubular liner layer 11 of plastic material with extruder and mold;
The plastic material refers to thermoplastic, including PP, PE, PVC, PA etc.;
2. twining radial layer: with liner layer 11 for bed die, heating wrapping machine by prepreg tape, intersected with multi-level angle, Bian Jia Heat is wound in tensioning, and the prepreg tape 21 being arranged radially is wrapped on the outer surface of liner layer 11;
The angle for 11 central axis of prepreg tape 21 and liner layer being arranged radially is at 45 °~85 °, the radially reinforced layer of adjacent two layers Angle between 121 prepreg tape 21 is not less than 90 °;
Prepreg tape 21 refers to thermoplasticity continuous glass fibre prepreg tape;
3. twining axial layer: the prepreg tape 21 to be arranged radially, by presoaking film film-laying machine, is heated, side for bed die with multilayer secondary side Tensioning, by 22 paving of preimpregnation film being axially arranged on 21 outer surface of prepreg tape being arranged radially;
The angle of the preimpregnation film 22 and 11 central axis of liner layer that are axially arranged is at 0~30 °, adjacent two layers axial direction enhancement layer 122 Preimpregnation film 22 between angle be not more than 45 °;
Preimpregnation film 22 refers to thermoplasticity continuous glass fibre prepreg tape;
4. squeezing surface layer: producing the melt of surface layer pipe 13 with extruder and mold, the melt of surface layer pipe 13 is covered on to enhance Sandwich layer 12 is on the outer surface of bed die;
5. sizing: being formed, obtained by prepreg tape 21 in radially reinforced, preimpregnation film 22 in axis by cooler bin water tank spraying cooling To the multiple tube 1 of the two-way enhancing of enhancing.

Claims (4)

1. a kind of two-way reinforced composite pipe of thermoplasticity continuous glass-fiber prepreg tape journal axle, including liner layer (11), characterized in that also wrap Enhancing sandwich layer (12) and surface layer pipe (13) are included, liner layer (11), enhancing sandwich layer (12) and surface layer pipe (13) this three are from the inside to the outside Successively it is arranged,
Enhancing sandwich layer (12) includes radially reinforced layer (121) and axial enhancement layer (122) from the inside to the outside, radially reinforced layer (121) at least two layers, every layer of radially reinforced layer (121) is made of the oblique winding of prepreg tape (21), constitutes radially reinforced layer (121) angle of prepreg tape (21) and liner layer (11) central axis is at 30 °~85 °, the radially reinforced layer of adjacent two layers (121) Prepreg tape (21) between angle be not less than 90 °,
At least two layers of axial enhancement layer (122), every layer of axial enhancement layer (122) are made of preimpregnation film (22) paving, are constituted At 0~30 °, adjacent two layers axially increase for the preimpregnation film (22) of axial enhancement layer (122) and the angle of liner layer (11) central axis Angle between the preimpregnation film (22) of strong layer (122) is not more than 45 °,
Liner layer (11), enhancing sandwich layer (12) and surface layer pipe (13) this three rely on the heat of isomorphous structural plastics under tension Molten heat welded of passing through forms the multiple tube (1) of whole three layers.
2. the two-way reinforced composite pipe of thermoplasticity continuous glass-fiber prepreg tape journal axle as described in claim 1, it is characterized in that: enhancing core Layer (12) by prepreg tape heat wrapping machine, with multi-level angle intersect, while heating while pressurize, side wind be arranged radially it is pre- Leaching band (21) is molten to be attached to liner layer (11) outer surface and forms radially reinforced layer (121), by presoaking film film-laying machine, with multilayer secondary side Heating, while tensioning, while the preimpregnation film (22) that is axially arranged of paving form axial enhancement layer in the outer surface of radially reinforced layer (121) (122), to form enhancing sandwich layer (12).
3. the preparation method of the two-way reinforced composite pipe of thermoplasticity continuous glass-fiber prepreg tape journal axle as described in claims 1 or 2, It is characterized in that: successively implementing as follows:
1. squeezing internal layer: first producing the tubular liner layer (11) of plastic material with extruder and mold;
2. twining radial layer: with liner layer (11) for bed die, heating wrapping machine by prepreg tape, intersected with multi-level angle, Bian Jia Heat is wound in tensioning, and the prepreg tape being arranged radially (21) is wrapped on the outer surface of liner layer (11);
3. twining axial layer: with the prepreg tape (21) that is arranged radially for bed die, by presoaking film film-laying machine, with the heating of multilayer secondary side, Side tensioning, by preimpregnation film (22) paving being axially arranged on prepreg tape (21) outer surface being arranged radially;
4. squeezing surface layer: the melt of surface layer pipe (13) is produced with extruder and mold, by the melt of surface layer pipe (13) be covered on Enhance on the outer surface that sandwich layer (12) are bed die;
5. sizing: being formed by cooler bin water tank spraying cooling, obtain being existed by prepreg tape (21) in radially reinforced, preimpregnation film (22) The multiple tube (1) of the two-way enhancing axially enhanced.
4. the preparation method of the two-way reinforced composite pipe of thermoplasticity continuous glass-fiber prepreg tape journal axle as claimed in claim 3, It is characterized in:
Step 2. when, the angle of the prepreg tape (21) and liner layer (11) central axis that are arranged radially is at 30 °~85 °, adjacent two Angle between the prepreg tape (21) of the radially reinforced layer (121) of layer is not less than 90 °;
Step 3. when, the angle of the preimpregnation film (22) and liner layer (11) central axis that are axially arranged is at 0~30 °, adjacent two layers Angle between the preimpregnation film (22) of axial enhancement layer (122) is not more than 45 °.
CN201811142785.0A 2018-09-29 2018-09-29 Two-way reinforced composite pipe of thermoplasticity continuous glass-fiber prepreg tape journal axle and preparation method thereof Pending CN109291477A (en)

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Application Number Priority Date Filing Date Title
CN201811142785.0A CN109291477A (en) 2018-09-29 2018-09-29 Two-way reinforced composite pipe of thermoplasticity continuous glass-fiber prepreg tape journal axle and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811142785.0A CN109291477A (en) 2018-09-29 2018-09-29 Two-way reinforced composite pipe of thermoplasticity continuous glass-fiber prepreg tape journal axle and preparation method thereof

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CN109291477A true CN109291477A (en) 2019-02-01

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Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111536356A (en) * 2020-04-28 2020-08-14 江苏赛尔超高压特种管业有限公司 Novel glass fiber reinforced thermoplastic plastic pipe and production process thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111536356A (en) * 2020-04-28 2020-08-14 江苏赛尔超高压特种管业有限公司 Novel glass fiber reinforced thermoplastic plastic pipe and production process thereof

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