CN110454646A - A kind of tube orientation drills more protection photocuring prepreg film material - Google Patents

A kind of tube orientation drills more protection photocuring prepreg film material Download PDF

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Publication number
CN110454646A
CN110454646A CN201910839794.3A CN201910839794A CN110454646A CN 110454646 A CN110454646 A CN 110454646A CN 201910839794 A CN201910839794 A CN 201910839794A CN 110454646 A CN110454646 A CN 110454646A
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CN
China
Prior art keywords
film material
prepreg film
composite felt
photocuring prepreg
layer composite
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN201910839794.3A
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Chinese (zh)
Inventor
钱雅萍
张立
李平
杨秀军
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Jiangsu Xiude Material Technology Co Ltd
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Jiangsu Xiude Material Technology Co Ltd
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Publication date
Application filed by Jiangsu Xiude Material Technology Co Ltd filed Critical Jiangsu Xiude Material Technology Co Ltd
Priority to CN201910839794.3A priority Critical patent/CN110454646A/en
Publication of CN110454646A publication Critical patent/CN110454646A/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/06—Fibrous reinforcements only
    • 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
    • F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
    • F16L57/06—Protection of pipes or objects of similar shape against external or internal damage or wear against wear

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Laminated Bodies (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

The invention discloses a kind of tube orientations to drill more protection photocuring prepreg film material, for the enhancing base materials of impregnating resin glue, enhancing base materials include the compound long glass fibres axial direction cloth and glass chopped strand mats of stacking, it is laid with resulting first unidirectional laying and the second unidirectional laying comprising fibre untwisted rove in long glass fibres axial direction cloth, the axial angle of fibre untwisted rove is 90 ° in the first unidirectional laying and the second unidirectional laying.The tube orientation drills more protection and photocuring prepreg film material is used to use the long glass fibres axial direction cloth being laminated and glass chopped strand mats as enhancing base materials, there is 0 °/90 ° be made of roving biaxially laying in long glass fibres axial direction cloth, it is layered laminate between two layings, the tensile strength of sheet material is high；Under the conditions of protective layer local compression after solidification, roving interaction force is small between laying, and protective layer has higher wear-resistant and scratch resistance capability.The invention also discloses a kind of surface layer clad structures of crossing pipeline.

Description

A kind of tube orientation drills more protection photocuring prepreg film material
Technical field
The present invention relates to pipeline surface layer technical field of anticorrosion, and in particular to a kind of tube orientation drills more protection photocuring The surface layer clad structure of prepreg film material and crossing pipeline.
Background technique
Pipeline Crossing Program, which refers to, is arranged in underwater or underground laying means for pipeline, formed across river, lake and The pipelines road such as railway, highway.The continuous frictional on pipeline surface layer and bottom, pipeline corrosion protection in long distance pipeline directional drilling crossing engineering Layer is subject to damage, and influences the service life of pipeline.The pipeline anticorrosion coating breakage form returned before dragging within the scope of 20m is the tightest Weight.More protection photocuring prepreg film material Clad pipe is drilled using tube orientation first in improved technical solution, through solid Change is obtained with fibre reinforced materials and curing unsaturated resins protective layer as main component.
Known tube orientation drills more protection photocuring prepreg film material such as CN102305334A petroleum gas work Disclosed in the guard method of journey directional drilling crossing pipeline anticorrosion coating, passed through using glass fabric as enhancing base materials cladding Pipeline, using sequentially overlapped, mode (as shown in Fig. 1) winds paving, regular grade protection from pipeline one end to other end sequence The structure of layer is epoxy viscose-glass fabric-epoxy viscose-glass fabric-epoxy viscose stepped construction, is reinforced The structure of grade protective layer is epoxy viscose-glass fabric-epoxy viscose-glass fabric-epoxy viscose-glass fibers Wei Bu-epoxy viscose stepped construction.
In the prior art for duct wrap Gitterfasern cloth be usually glass fibre as warp thread and weft yarns and At above-mentioned Gitterfasern cloth is easily deformed during cladding, and pipeline is squeezed by external force after solidification, warp thread and weft yarns part Internal stress increases, and causes the bearing capacity of tube body lower；The roving of glass woven roving is also unfavorable for the attachment of resin glue, because This is needed using the multiple interval clad structure of epoxy viscose-glass-fiber-fabric.In addition, there are following for sequence overlapped cladding mode Defect: first, pipeline axial surface concave-convex surface, recess and convex portion part are easy the rock in drilled and scratch, finally The deeper scratch along pipeline axial direction is formed on the surface of crossing pipeline；Second, crossing pipeline bottom be wrapped band overlap joint internal layer by Light quantity is small, cannot sufficiently solidify, and forms the defect area of pipeline protection layer.
Summary of the invention
It is an object of the present invention to overcoming defect existing in the prior art, a kind of high strength after curing, resistance to is provided It scratches and the good tube orientation of wear-resisting property drills more protection photocuring prepreg film material.
In order to realize above-mentioned technical effect, used up admittedly the technical solution of the present invention is as follows: a kind of tube orientation drills more protection Change prepreg film material, which is characterized in that photocuring prepreg film material is the enhancing base materials of impregnating resin glue, the enhancing base materials packet Include and compound long glass fibres axial direction cloth and glass chopped strand mats be laminated, in the long glass fibres axial direction cloth comprising glass without It twists rove and is laid with resulting first unidirectional laying and the second unidirectional laying, fibre in the first unidirectional laying and the second unidirectional laying The axial angle for tieing up roving is 90 °.
Preferred technical solution is that the surface layer of the enhancing base materials is glass chopped strand mats.
Preferred technical solution is, by the suture of loop bonding line interlayer between the laying of the long glass fibres axial direction cloth, or It is sutured between long glass fibres axial direction cloth and glass chopped strand mats described in person by loop bonding line interlayer.
Preferred technical solution is that the enhancing base materials are by one layer of two-way long glass fibres axial direction cloth and one layer of glass fibers Dimension chopped mat is laminated, and the edge of the long glass fibres axial direction cloth and the glass chopped strand mats flushes.
Preferred technical solution is that the enhancing base materials include the consistent internal layer composite felt of shape and outer layer composite felt, institute It states internal layer composite felt and outer layer composite felt respectively includes the glass chopped strand mats and two-way long glass that are laminated and edge flushes Fiber axial direction cloth, internal layer composite felt is parallel with the side of outer layer composite felt and the stacking that misplaces.
Preferred technical solution is that the internal layer composite felt and outer layer composite felt are rectangle.
Preferred technical solution is long glass fibres axial direction cloth and glass in the internal layer composite felt and outer layer composite felt The number of plies of fiber chopped mat is respectively one layer.
The second object of the present invention is to provide the packet that a kind of tube orientation drills more protection photocuring prepreg film material Cover structure, which is characterized in that it is compound to drill more protection photocuring prepreg film material, the internal layer based on above-mentioned tube orientation Felt and the dislocation stacking of outer layer composite felt form internal layer misalignment and outer layer misalignment, the first photocuring prepreg film material and the second photocuring Prepreg film material is circumferentially adjacent to be coated on outside pipeline, and the outer layer misalignment stacking of the first photocuring prepreg film material is viscous to be set to On the internal layer misalignment of second photocuring prepreg film material, the first photocuring prepreg film material and the second photocuring prepreg film The internal layer composite felt and outer layer composite felt of material, which are coincide, docks.
Preferred technical solution is the circumferential direction of the first photocuring prepreg film material and the second photocuring prepreg film material Butted line outer stack is viscous to be equipped with glass wool cloth.
Preferred technical solution is that circumferentially the photocuring prepreg film material both ends of Clad pipe overlap to form overlap joint Portion, internal layer composite felt and outer layer composite felt staggeredly overlap in the clinch.
The advantages and beneficial effects of the present invention are:
The tube orientation drills more protection photocuring prepreg film material using the long glass fibres axial direction cloth and glass fibers of stacking It ties up chopped mat and is used as enhancing base materials, with 0 °/90 ° be made of roving biaxially laying in long glass fibres axial direction cloth, It is layered laminate between two layings, the tensile strength of sheet material is high；Protective layer part due to the fixed function of resin material, after solidification Under pressure, roving interaction force is small between laying, so that the protective layer after solidifying is with higher wear-resistant and anti- Scuffing ability；
The smooth no concave-convex of surface layer clad structure of crossing pipeline, compared with sequence overlapping mode in the prior art, for drilling In the point of application that scratches of rock reduce, protective layer scratch resistant performance improves, and the solidification of pipeline protection layer is filled under the conditions of natural light Divide and uniform.
Detailed description of the invention
Fig. 1 is the sequence overlap joint cladding knot that tube orientation drills more protection photocuring prepreg film material in the prior art Structure；
Fig. 2 is the structural schematic diagram that 1 tube orientation of embodiment drills enhancing base materials in more protection photocuring prepreg film material；
Fig. 3 is the sectional structure signal that 2 tube orientation of embodiment drills enhancing base materials in more protection photocuring prepreg film material Figure；
Fig. 4 is the plan structure signal that 2 tube orientation of embodiment drills enhancing base materials in more protection photocuring prepreg film material Figure；
Fig. 5 is the plan structure signal that 3 tube orientation of embodiment drills enhancing base materials in more protection photocuring prepreg film material Figure；
Fig. 6 is the schematic diagram of the section structure of 4 crossing pipeline of embodiment and surface layer clad structure；
Fig. 7 is the schematic perspective view of 4 surface layer clad structure of embodiment；
Fig. 8 is the schematic diagram of the section structure of crossing pipeline and surface layer clad structure in embodiment 5；
Fig. 9 is the schematic perspective view of 5 surface layer clad structure of embodiment；
Figure 10 is the cross-sectional structure schematic diagram of 6 crossing pipeline of embodiment and surface layer clad structure；
In figure: 1, glass biaxially cloth；11, the first unidirectional laying；12, the second unidirectional laying；2, glass chopped strand mats；3, it stitches Braided wire；4, the first photocuring prepreg film material；5, the first photocuring prepreg film material；A, pipeline；B, internal layer composite felt；It is b1, interior Fault side；C, outer layer composite felt；C1, outer layer misalignment；6, glass wool cloth.
Specific embodiment
With reference to the accompanying drawings and examples, further description of the specific embodiments of the present invention.Following embodiment is only For clearly illustrating technical solution of the present invention, and not intended to limit the protection scope of the present invention.
Long glass fibres axial direction cloth
Uniaxially cloth generally includes uniaxially cloth and multiaxial fabric to fiber, be divided into multiaxial fabric biaxially cloth, three axial cloth and Four axial cloth, it biaxially includes two in cloth that uniaxially coplanar interior arrangement forms laying to roving in a parallel manner in cloth A laying, the axial direction of fibre untwisted rove is 0 °, 90 °, 45 ° of ﹢, 45 ° of ﹣, 60 ° of ﹢, -60 ° of combination in two layers or more laying, excellent The biaxially cloth that the long glass fibres axial direction cloth of choosing is 0 °/90 °.
Glass chopped strand mats
The fibre gap of omnidirectional random distribution helps to improve the gel content of enhancing base materials in glass chopped strand mats.Further , using glass chopped strand mats as the surface layer of enhancing base materials, the sheet material after solidification has thicker light curing resin layer, helps In the enhancing of protective performance.
The suture of loop bonding line interlayer
The effect of loop bonding line interlayer suture is to guarantee do not occur the relative displacement of interlayer in impregnation production process, has sheet material Neat edge becomes small control convenient for the end splicing seam during subsequent pipeline cladding.
The dislocation of composite felt is laminated
The composite felt of common dislocation stacking is rectangle, and the composite felt of rectangle has pairs of long side and broadside, two layers of composite felt Dislocation stacking, including two kinds of situations: one, the broadside of two composite felts of stacking flushes, and long side is parallel and misplaces；Two, two composite felts Broadside and the equal parallel misalignment of long side.
Based on the first above-mentioned structure: the broadside of composite felt and the bus of pipeline are consistent in work progress, composite felt Long side is coated on the circumferential direction of pipeline, and broadside, which flushes, then to be formed and the consistent identical butted line of pipeline bus, dislocation in pipe surface Long side form internal layer misalignment and outer layer misalignment, above-mentioned internal layer misalignment and outer layer misalignment in pipeline periphery and adjacent photocuring is pre- Impregnation sheet material overlap joint, the internal layer composite felt and outer layer composite felt for ultimately forming adjacent photocuring prepreg film material, which are coincide, docks Smooth safeguard structure.
Based on second above-mentioned of structure: the composite felt at prepreg film material both ends interlocks lapping construction in the process not only in pipe Road periphery forms internal layer misalignment and outer layer misalignment, moreover it is possible to be respectively formed in the both ends broadside of same photocuring prepreg film material along pipe The internal layer misalignment and outer layer misalignment of road axial direction, the internal layer misalignment and outer layer misalignment of pipeline periphery and adjacent photocuring prepreg film The outer layer misalignment overlap joint of material overlap joint, the internal layer misalignment of photocuring prepreg film material one end and the other end, along pipeline extending direction according to Secondary laying finally also forms the internal layer composite felt of adjacent photocuring prepreg film material and putting down for the identical docking of outer layer composite felt Sliding safeguard structure.
Composite felt is interlocked, and overlapped acts on the overlap joint stability for being to increase prepreg film material.Composite felt is interlocked, and overlapped ties Structure specifically: the both ends of prepreg film material are side a and b, and the internal layer composite felt at the end prepreg film material A is bonded with pipeline, are presoaked The internal layer composite felt at the end film material B fits to the internal layer composite felt surface of prepreg film material A, and the outer layer of prepreg film material A is compound Felt fits to the internal layer composite felt surface at the end prepreg film material B, and the outer layer composite felt of prepreg film material B fits to prepreg film material The outer layer composite felt surface at the end A.
Staggeredly overlap joint can make not generate hollowing between the overlap edge and pipe surface of internal layer in clinch, make to protect Layer is bonded closely with pipeline, optimizes protection effect.
Further, in order to make clinch sufficiently by photocuring, the overlapping part is in the top of the protection cylinder section.
Embodiment 1
As shown in Fig. 2, 1 tube orientation of embodiment drills the enhancing base that more protection is impregnating resin glue with photocuring prepreg film material Material, enhancing base materials include 0 °/90 ° glasses being stacked gradually by inner and table biaxially cloth 1 and glass chopped strand mats 2, i.e. glass Biaxially cloth is laid with resulting first unidirectional laying 11 by glass roving and the second unidirectional laying 12 is formed by stacking, and first is single Into laying 11 and the second unidirectional laying 12, the axial angle of fibre untwisted rove is 90 °.
Embodiment 2
As shown in Figures 3 and 4,2 tube orientation of embodiment drills the increasing that more protection is impregnating resin glue with photocuring prepreg film material Strong basis material, it is multiple that 0 °/90 ° long glass fibres axial direction cloth 1 and glass chopped strand mats 2 in embodiment 1, which use the suture of loop bonding line 3, Felt is closed, includes the internal layer composite felt b and outer layer composite felt c of rectangle of the same size, internal layer composite felt in 2 enhancing base materials of embodiment The long glass fibres axial direction cloth 1 of b and outer layer composite felt c fits, and tube orientation drills more protection photocuring prepreg film material Two surface layers be glass chopped strand mats 2.The broadside of internal layer composite felt b and outer layer composite felt c flush, and long side is parallel and misplaces Setting.
Embodiment 3
As shown in figure 5, embodiment 3 is based on embodiment 2, difference is, it is pre- that 3 tube orientation of embodiment drills more protection photocuring Internal layer composite felt b is parallel with broadside with the long side of outer layer composite felt c in impregnation sheet material and shifts to install.
Embodiment 4
As shown in fig. 6-7, more protection photocuring prepreg film material, embodiment 2 are drilled based on tube orientation as described in example 2 The length of middle long side is greater than the outer perimeter of pipeline.Internal layer composite felt b and outer layer composite felt c dislocation stacking formed internal layer misalignment b1 and The long side of outer layer misalignment c1, the first photocuring prepreg film material 4 and the second photocuring prepreg film material 5 is circumferentially coated on pipe Road a is outer and is disposed adjacent, and the outer layer misalignment c1 stacking of the first photocuring prepreg film material 4 is viscous to be set to the second photocuring prepreg film On the internal layer misalignment b1 of material 5, the broadside that flushes at 4 both ends of the first photocuring prepreg film material is mutually overlapped, the pre- impregnation of the first photocuring The broadside that flushes at 5 both ends of sheet material also mutually overlaps.
Embodiment 5
As Figure 8-9, embodiment 4, the week of the first photocuring prepreg film material 4 and the second photocuring prepreg film material 5 are based on Glass wool cloth 6 is equipped with to butted line outer stack is viscous.
Embodiment 6
As shown in Figure 10, be based on embodiment 3, by outer layer misalignment c1 stacking at long side and broadside it is viscous set on internal layer misalignment b1, So that the internal layer composite felt b and outer layer composite felt c of the first photocuring prepreg film material 4 and the second photocuring prepreg film material 5 Coincide docking.
Embodiment 6
As shown in Figure 10, it is based on embodiment 4, difference is, 4 both ends of the first photocuring prepreg film material overlap to form clinch, Internal layer composite felt b and outer layer composite felt c is staggeredly overlapped in clinch.
Comparative example: comparative example overlapping mode is as shown in Fig. 1, and the glass wool cloth using stacking in comparative example is (through weft knitting Knit) as enhancing base materials.
1, gel content compares
By the glass fiber layer of cloth through knitting device, the comparative example sheet material of Clad pipe axial direction is made in trimming, with the sheet material in embodiment 6 It is impregnated in that temperature is 25 DEG C, viscosity is in the resin glue of 1500cps respectively, takes out and stand 5min, resin glue freely seeps in sheet material Out, the gel content after 5min in 6 sheet material of comparative example sheet material and embodiment is respectively 22% and 35 %.
[gel content=(sheet quality-impregnation front sheet quality after standing)/impregnation front sheet quality × 100%]
Gel content is bigger, and the thickness of crossing pipeline protective layer is bigger, and protective performance advanced optimizes.
2, the Structure Comparison of solidified protection layer
It uses resin glue content to coat crossing pipeline for the sheet material in 35% glass wool cloth and embodiment 6 through knitting device and consolidates Change, wherein glass wool cloth uses the overlap joint side of embodiment 6 using overlapped the mode of the sequence in background technique, prepreg film material Formula, the grammes per square metre, flanging protrusion and protective performance measured value for solidifying gained crossing pipeline surface protecting layer see the table below:
Sequence Number Comparison Project Unit Comparative example Embodiment 6 Detection method
1 Appearance Bulge loop is overlapped with sequence, there is annular hollowing under bulge loop, Bottom lap-joint internal layer has uncured defect It is smooth, no sky Drum, completion of cure Range estimation
2 Grammes per square metre g/m2 ≤3.5 5.6 Actual measurement
3 Flanging Protrusion mm ≤2 ≤0.5 Slice actual measurement
4 Overlap joint Protrusion mm ≤2 ≤0.4 Trimming actual measurement
5 Thickness mm ≥1.5 ≥2.5 GB/T6672
As seen from the above table, the protective performance of photocuring prepreg film material impregnating resin glue, gained crossing pipeline is as follows: tensile strength >=300 MPa(GB/T 1447), bending strength >=300 MPa(GB/T 1449), compressive strength >=200 MPa(GB/T 1448), bus hardness >=60(GB/T 2411), shore-D hardness >=90(GB/T 2411), scratch resistance (50Kg)≤350 μm (SY/T 4113), L/ μm of wearability >=7, bending resistance: 3 ° of flawlesses (SY/T 0315), to FBE bonding force >=7 MPa (ASTM D4541), impact resistance >=350.
It is right due to the presence of flanging protrusion, overlap joint protrusion and the uncured defect area of overlap joint internal layer and hollowing in upper table Ratio pass through after pipeline hollowing and overlap edge at scratch it is obvious, since there are the uncured defects of duct bottom internal layer, after passing through The common scuffing through protective layer of duct bottom.6 gained pipeline protection layer surface of embodiment is smooth, without hollowing, it is smooth completely, Pipe surface after passing through, which scratches, is considerably less than comparative example 1, without the severe marking for running through protective layer.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art For member, without departing from the technical principles of the invention, several improvements and modifications can also be made, these improvements and modifications Also it should be regarded as protection scope of the present invention.

Claims (10)

1. a kind of tube orientation drills more protection photocuring prepreg film material, which is characterized in that photocuring prepreg film material is The enhancing base materials of impregnating resin glue, the enhancing base materials include the compound long glass fibres axial direction cloth of stacking and glass chopped Felt is laid with resulting first unidirectional laying and the second unidirectional paving comprising glass roving in the long glass fibres axial direction cloth Layer, the axial angle of fibre untwisted rove is 90 ° in the first unidirectional laying and the second unidirectional laying.
2. tube orientation according to claim 1 drills more protection photocuring prepreg film material, which is characterized in that described The surface layer of enhancing base materials is glass chopped strand mats.
3. tube orientation according to claim 1 drills more protection photocuring prepreg film material, which is characterized in that described Pass through the suture of loop bonding line interlayer or the long glass fibres axial direction cloth and glass fibers between the laying of long glass fibres axial direction cloth It ties up and is sutured between chopped mat by loop bonding line interlayer.
4. tube orientation according to claim 1 drills more protection photocuring prepreg film material, which is characterized in that described Enhancing base materials are laminated by one layer of two-way long glass fibres axial direction cloth and layer of glass chopped mat, the long glass fibers The edge for tieing up axial cloth and the glass chopped strand mats flushes.
5. tube orientation according to claim 1 drills more protection photocuring prepreg film material, which is characterized in that described Enhancing base materials include the consistent internal layer composite felt of shape and outer layer composite felt, and the internal layer composite felt and outer layer composite felt are wrapped respectively Include stacking and glass chopped strand mats and two-way long glass fibres axial direction cloth that edge flushes, internal layer composite felt and outer layer are compound The side of felt is parallel and the stacking that misplaces.
6. tube orientation according to claim 5 drills more protection photocuring prepreg film material, which is characterized in that described Internal layer composite felt and outer layer composite felt are rectangle.
7. tube orientation according to claim 5 or 6 drills more protection photocuring prepreg film material, which is characterized in that The number of plies of long glass fibres axial direction cloth and glass chopped strand mats in the internal layer composite felt and outer layer composite felt is respectively one Layer.
8. the clad structure that a kind of tube orientation drills more protection photocuring prepreg film material, which is characterized in that be based on right It is required that tube orientation described in 5 drills more protection photocuring prepreg film material, the internal layer composite felt and outer layer composite felt are wrong Position stacking forms internal layer misalignment and outer layer misalignment, and the first photocuring prepreg film material and the second photocuring prepreg film material are circumferentially Adjacent to be coated on outside pipeline, the outer layer misalignment stacking of the first photocuring prepreg film material is viscous to be set to the pre- impregnation of the second photocuring On the internal layer misalignment of sheet material, the internal layer composite felt of the first photocuring prepreg film material and the second photocuring prepreg film material with And outer layer composite felt is coincide and is docked.
9. tube orientation according to claim 8 drills the clad structure of more protection photocuring prepreg film material, special Sign is that the circumferential abutment line outer stack of the first photocuring prepreg film material and the second photocuring prepreg film material is viscous to be equipped with Glass wool cloth.
10. tube orientation according to claim 8 drills the clad structure of more protection photocuring prepreg film material, special Sign is that circumferentially the photocuring prepreg film material both ends of Clad pipe overlap to form clinch, interior in the clinch Layer composite felt and outer layer composite felt staggeredly overlap.
CN201910839794.3A 2019-09-06 2019-09-06 A kind of tube orientation drills more protection photocuring prepreg film material Withdrawn CN110454646A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910839794.3A CN110454646A (en) 2019-09-06 2019-09-06 A kind of tube orientation drills more protection photocuring prepreg film material

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Application Number Priority Date Filing Date Title
CN201910839794.3A CN110454646A (en) 2019-09-06 2019-09-06 A kind of tube orientation drills more protection photocuring prepreg film material

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Publication Number Publication Date
CN110454646A true CN110454646A (en) 2019-11-15

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Application publication date: 20191115