CN105715882B - A kind of small-bore bamboo coiled composite tube and its manufacturing method - Google Patents
A kind of small-bore bamboo coiled composite tube and its manufacturing method Download PDFInfo
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- CN105715882B CN105715882B CN201610237387.1A CN201610237387A CN105715882B CN 105715882 B CN105715882 B CN 105715882B CN 201610237387 A CN201610237387 A CN 201610237387A CN 105715882 B CN105715882 B CN 105715882B
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/16—Rigid pipes wound from sheets or strips, with or without reinforcement
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
-
- 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
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping 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
-
- 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
- B29C70/28—Shaping operations therefor
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2023/00—Tubular articles
- B29L2023/22—Tubes or pipes, i.e. rigid
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Laminated Bodies (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
The invention belongs to composite pipe related fieldss, and disclose a kind of small-bore bamboo coiled composite tube, the bamboo coiled composite tube includes liner layer, middle reinforcement layer and external protection coating from inside to outside, and wherein liner layer is made of the fibrofelt or non-woven fabrics for being stained with anti-corrosion resin；Middle reinforcement layer is solidified by being stained with resin and having the single thin bamboo strips used for weaving piece multi-layer helical of certain size specification to be wrapped in outside the liner layer, and its overall thickness accounts for 75% or more of whole thickness of pipe wall；External protection coating, which coats, is solidificated in the outer surface of middle reinforcement layer, and the effects of play waterproof and anticorrosion and radiation protection.The invention also discloses corresponding preparation methods.Through the invention, even if the characteristics of still being able to keep the unstressed distribution defect of bamboo coiled composite tube road overall structure well under the small-bore specification conditions lower than 200mm, while being remarkably improved such as crushing resistance, ring stiffness, fluid transportation energy consumption and the comprehensive performance for quality stability being used for a long time etc..
Description
Technical field
The invention belongs to composite pipe correlative technology fields, more particularly, to a kind of small-bore bamboo coiled composite tube
And its manufacturing method.
Background technique
In current industries multiple at home and abroad, equal widespread need uses various types of tubing.The main quilt of traditional piping material
Be divided into metal pipe material (such as seamless steel pipe, nodular cast iron pipe), plastic pipe (such as pvc pipe, HDPE pipe), materials used for cement pipes with
And glass reinforced plastic pipe (such as sand-clad glass pipe) classification, each has different performance characteristics, while also presenting different
Advantage and disadvantage: if the bearing capacity of seamless steel pipe is high, high temperature resistant, easy processing, but weight is big, perishable and uses the longevity at constructional difficulties
Life is general；HDPE pipe it is light-weight, corrosion-resistant, it is easy to process, but heat resistance and bearing capacity is poor, rigidity is small and easy to be old
Change；The intensity of sand-clad glass pipe is high, corrosion-resistant, and coefficient of friction is smaller, but bearing capacity is limited, long-term in heavy caliber
Using glass fibre may be precipitated, while being unfavorable for recycling, etc..
In view of this, present inventor have been proposed in early days using bamboo fibre as main reinforcing material, with
Resin is as binder, and using canoe come the new bio base tube material of machine-shaping.For example, CN200910099279.2
In disclose a kind of preparation method of bamboo fiber winding composite tube, wherein setting tubing to from inside to outside liner layer, enhancement layer
And external protection coating, the enhancement layer are to be first passed through resin storage tank mounted in debatching on wrapping machine by coiled bamboo fibre piece and coat for example ring
The modified material of oxygen resin is then wrapped on the liner layer of straight tube mold last cured formation.For another example,
A kind of bamboo composite pressure pipe is disclosed in CN201120458602.3, wherein setting tubing to from inside to outside liner layer, enhancing
Layer and external protection coating, and all layers of main component is combined by bamboo fibre and other materials, it is fine thus to obtain full bamboo
The enhancing pipe material product of dimension.The basic principle of the above new bio base tube material is to make full use of the axial tension of bamboo fibre strong
Degree, and forms unstressed defect distribution in pipeline configuration, accordingly compared with conventional all kinds of tubing, not only compressive resistance,
Show excellent in terms of the multinomial main indicator such as rigidity, weight, anti-corrosion and insulation performance, and raw material are renewable resource,
The basic three-waste free discharge of production process, has the characteristics such as low-carbon environment-friendly, energy-saving and emission-reduction.
However, as bamboo coiled composite tube material is in the popularization and practical application of multiple industries and project, further research
Show for the occasion of pipeline transportation etc, uses minor caliber pipe largely often to form pipe network branch line, and
In order to meet long-term transport use process performance stablize, its Key Performance Indicator and in terms of also deposit
Specifically requiring.In other words, when the small-bore bamboo coiled composite tube for needing to use specific standard in face of some applications
In the case where material, how targeted design made to continue to keep its exclusive based on the own characteristic of above-mentioned biology base tubing
Performance characteristics, and be all satisfied processing from ring stiffness, axial tensile strength and antiseep and low fluid transportation energy consumption etc.
Where the technical issues of quality requirement of process is used in manufacture and long-term transport, is just becoming this field urgent need to resolve.
Summary of the invention
For the above insufficient or Improvement requirement of the prior art, the present invention provides a kind of small-bore bamboo coiled composite tubes
And its manufacturing method, wherein being improved and being redesigned by structure composition to each key component and set-up mode, especially
It is to it is some directly influence the small-bore composite pipe processing and manufacturing and in terms of some important knots
Structure parameter is adjusted and improves, and the small-bore bamboo coiled composite tube material is accordingly enabled to keep itself steadily in the long term
Unstressed defect distribution characteristic is therefore particularly suitable for for example applied fields such as oil-gas transportation, municipal drainage blowdown, pipe network branch line
It closes.
To achieve the above object, according to one aspect of the present invention, a kind of small-bore bamboo coiled composite tube is provided,
It is characterized in that, the diameter of bore of the bamboo coiled composite tube is 200mm hereinafter, and from inside to outside successively including liner layer, centre
Enhancement layer and external protection coating；Wherein:
The liner layer is solidified by the fibrofelt or non-woven fabrics that are soaked with adhesive to be made, and forms antiseepage and smooth interior
Wall；The middle reinforcement layer is solidified outside the liner layer by the thin bamboo strips used for weaving piece multilayer uniform winding for being stained with resin, and its
Overall thickness accounts for 75% or more of whole thickness of pipe wall, and furthermore the specification of the thin bamboo strips used for weaving piece is set to wide 2mm~10mm, thickness
0.6mm~1.2mm, length 2500mm or more, and spiral side is all made of relative to the liner layer in entire winding process
Formula is wound；Then directly coating is solidificated in the outer surface of the middle reinforcement layer to the external protection coating, and plays waterproof and anticorrosion
With the effect of radiation protection.
Technical solution is formed by for above-mentioned design of the invention, by the way that middle reinforcement layer is directlyed adopt single thin bamboo strips used for weaving
Piece is mixed with resin and is wound, and can not only significantly improve processing efficiency and quality controllability in this way, it is often more important that so that
Thin bamboo strips used for weaving piece is fully extended in the helical wrapping process of above-mentioned angular range, plays its axial tensile strength to maximum
Change；In addition, in view of thin bamboo strips used for weaving piece as middle reinforcement layer core component one to its structural strength or even entire small-bore
The ring stiffness of bamboo winding pipe plays great influence, is set in the present invention by the specific aim to its concrete specification size and thickness accounting
Meter mutually should be able to still be able to keep the unstressed distribution of pipeline overall structure well in the case where internal diameter of the pipeline is lower than 200mm
The characteristics of defect, obtains better balance between required winding thickness and structural strength, while can ensure that bamboo coiled composite tube
Quality stability in road long-time service.
As an improvement project of the invention, the thin bamboo strips used for weaving piece winding layer number of the middle reinforcement layer is preferably 2 layers~6
Layer, and its winding angle is gradually incremented by from inside to outside.Further, minimum winding angle is preferably set to 20 °, and according to
Every layer 3 °~5 ° of angle is incremented by successively from inside to outside, until increasing to 80 ° of maximum winding angle.By designing above, Neng Goutong
The advantages such as the axial strength height and toughness incremented by successively by bamboo fibre itself of winding angle from inside to outside be strong are crossed gradually uniformly to expand
The multiple directions of tube wall are dissipated to, and plays the role of stress in multiple angles and is complementary to one another, can accordingly significantly improve the hair of tube wall
Phenomena such as raw bending or cracking, then ensure pipe stiffness and anti-internal pressure of the small-bore bamboo winding pipe under the conditions of long-time service
Energy.
As another improvement project of the invention, the cross-sectional shape of above-mentioned thin bamboo strips used for weaving piece is preferably processed into rectangle, aqueous
Rate is 8%~15%, and the overlap joint registration between adjacent thin bamboo strips used for weaving piece is no more than 2mm in the longitudinal direction.By setting above
Meter, the thin bamboo strips used for weaving piece of rectangle is not only facilitated to be overlapped in end face, while also can get greatly on lateral surface in it
Each other close to accordingly making the high axial tensile strength that can sufficiently obtain bamboo fibre in all directions in middle reinforcement layer special
Property；In addition, thin bamboo strips used for weaving piece and water content and overlap joint registration can also play large effect to the filling process of resin Composition, it is above-mentioned
Specific standard enables to resin to be easier to penetrate into each layer thin bamboo strips used for weaving piece and sufficiently combined with it, and then helps to improve intermediate increasing
The performances such as the structural strength of strong layer and impact resistance.
As another improvement project of the invention, the overall thickness of above-mentioned middle reinforcement layer is set to account for whole tube wall thickness
85%~90%.In this manner it is possible to be risen in terms of giving full play to middle reinforcement layer to entire small-bore bamboo winding pipe pressure-bearing
To central role, and convenient for playing directive function to the processing quality control between each group stratification.
As another improvement project of the invention, in above-mentioned middle reinforcement layer other than thin bamboo strips used for weaving piece and resin, can also add
Added with biological based filler and curing agent, wherein the mass fraction between the resin, biological based filler and curing agent this three
100:10~15:2~5 are set to, and sprinkling is adhered to the thin bamboo strips used for weaving on piece after mixing together.Further, the tree
Rouge is selected from one of polyurethane resin, phenolic resin, Lauxite or epoxy resin；The biology based filler is selected from
Bamboo and wood, fiber crops, stalk, plant shell or other rigid bio materials, and its average mesh number is set as 20~80.By above
It designs, filling out between the thin bamboo strips used for weaving piece that the resin compound comprising biological based filler, curing agent can promote and each layer is adjacent to each other
It fills and combines, and have good compatibility between above-mentioned concrete type and the biological based filler and bamboo fibre of granularity, into
And the structural strength of middle reinforcement layer can be further increased.
As another improvement project of the invention, for above-mentioned liner layer, with a thickness of 0.5mm~1.5mm, and it is excellent
Choosing includes the first liner layer and the second liner layer from inside to outside, and wherein the thickness of first liner layer is less than second liner layer,
And the resin adhesive capacity of first liner layer is set to be greater than second liner layer.In addition, the fibre in above-mentioned liner layer
It ties up felt or non-woven fabrics is preferably bamboo fiber felt or bamboo fiber nonwovens；Further, first liner layer preferably uses
80g/m2~120g/m2And bamboo fiber felt or bamboo fiber nonwovens of the impregnation rate of adhesive greater than 90%, second liner
Layer preferably uses 180g/m2~250g/m2And bamboo fiber felt or bamboo fiber nonwovens of the impregnation rate of adhesive greater than 75%.It is logical
The targeted design above is referred to liner layer composed structure and important parameter is crossed, enables to the liner layer in the specification of small diameter tube
Under the conditions of be also able to maintain good anti-internal pressure and barrier properties, promote the abundant combination between middle reinforcement layer, while also
Help reduce frictional force, and fluid transportation energy consumption is effectively reduced.
As another improvement project of the invention, the tabasheer of above-mentioned thin bamboo strips used for weaving piece removal thickness be set to 0.2mm~
0.4mm, bamboo blueness removal thickness are set to 0.1mm~0.3mm.By designing above, can farthest avoid to bamboo fibre
The destruction of vascular bundle is tieed up, and process thin bamboo strips used for weaving piece obtained to have more affinely in conjunction with resin penetration in winding
It is filled conducive to the stabilization and uniformity of resin, and synchronous solidification can be better achieved in subsequent curing process, thus into
The structural strength of one step raising middle reinforcement layer.
It is another aspect of this invention to provide that the method for manufacturing small-bore bamboo coiled composite tube is further correspondingly provided,
It is characterized in that, this method includes the following steps:
(a) the cutting processing of thin bamboo strips used for weaving piece: raw bamboo being cutd open along its length for multistage, and by the bamboo blueness of each section of outer surface and
The tabasheer of inner surface is removed respectively, and wherein tabasheer removal thickness is set to 0.2mm~0.4mm, and bamboo blueness removes thickness quilt
It is set as 0.1mm~0.3mm, accordingly obtained cross section is rectangle and width is 2mm~10mm, with a thickness of 0.6mm~1.2mm, length
Degree is multiple thin bamboo strips used for weaving pieces of 2500mm or more；
(b) preparation of liner layer: with fibrofelt or non-woven fabrics the production thickness for being stained with anti-corrosion resin on straight tube mold
For the liner layer of 0.5mm~1.5mm, and form antiseepage and smooth inner wall；
(c) preparation of middle reinforcement layer: the debatching on the wrapping machine by obtained thin bamboo strips used for weaving piece, it is a plurality of by resin storage tank simultaneously
Painting applies resin, then uses spiral way multilayer uniform winding from beginning to end thereon relative to the liner layer, until completing
The middle reinforcement layer of required thickness；In the process, the winding angle of thin bamboo strips used for weaving piece is gradually incremented by from inside to outside, and controls so that final
The thickness for solidifying the middle reinforcement layer completed accounts for 75% or more of whole thickness of pipe wall；
(d) preparation of external protection coating: in the outer surface direct spraying anti-corrosion waterproof and radiation protection material of the middle reinforcement layer
Material, the bamboo coiled composite tube product of small-bore specification needed for ultimately forming.
As it is further preferred that the minimum winding angle of the thin bamboo strips used for weaving piece is 20 °, and is pressed for above-mentioned steps (c)
It is incremented by successively from inside to outside according to every layer 3 °~5 ° of angle, until increasing to 80 ° of maximum winding angle.
In general, through the invention it is contemplated above technical scheme is compared with the prior art, mainly have below
Technological merit:
1, the present invention is first to the middle reinforcement layer as tubing primary clustering in its specific structure composition and key parameter
The many aspects such as combination are studied and are improved, wherein using spiral way from beginning to end by directlying adopt single thin bamboo strips used for weaving piece
It is wound, processing efficiency and quality controllability can not only be significantly improved, so that thin bamboo strips used for weaving piece obtains during the winding process
It must be fully extended, play its axial tensile strength to maximization；In addition, changing by the specific size specification to thin bamboo strips used for weaving piece
Into, and it is matched with the design of winding angle variation from inside to outside, it should be able to mutually play and answer in the multiple directions of small-bore tube wall
The function that power is complementary to one another, and then without can also ensure that small-bore bamboo winding pipe in length in the case where being wrapped over multilayer number
Structural strength and stability under phase use environment；
2, liner layer is designed as multilayered structure in the present invention, while to the specification of each layer, component material etc.
Targeted design has been made respectively, in this manner it is possible to more in the smoothness of liner layer, corrosion resistance and resistance to stress intensity etc.
Aspect obtains preferable balance, this small-bore bamboo wrapped tube i.e. convenient in this way is for conveying solid-liquid compounding substances or mortar
Etc in the case where medium, the phenomenon that also not easily causing excessive fluid transportation energy consumption or breakage inside lining layer, and facilitate with it is intermediate
The intensity that be combined with each other between enhancement layer；
3, small-bore its processing technology of bamboo coiled composite tube of the invention all carries out at normal temperatures and pressures substantially, is convenient for quality
Control and production process three-waste free discharge, have the characteristics such as low-carbon environment-friendly, energy-saving and emission-reduction, obtained bamboo coiled composite tube exists
It still is able to keep the unstressed defect distribution characteristic of itself steadily in the long term under 200mm diameter of bore specification below, thus can
It substitutes all kinds of conventional tubing and is particularly suitable for the applications such as oil-gas transportation, municipal drainage blowdown, pipe network branch line.
Detailed description of the invention
Fig. 1 is the basic structure section view according to small-bore bamboo coiled composite tube designed by the preferred embodiment for the present invention
Figure；
Fig. 2 is the process method flow chart that small-bore bamboo coiled composite tube is used for according to the present invention；
In all the appended drawings, identical appended drawing reference is used to denote the same element or structure, in which:
1- liner layer 2- middle reinforcement layer 3- external protection coating
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.As long as in addition, technical characteristic involved in the various embodiments of the present invention described below
Not constituting a conflict with each other can be combined with each other.
Fig. 1 is the basic structure section view according to small-bore bamboo coiled composite tube designed by the preferred embodiment for the present invention
Figure.As shown in fig. 1, the diameter of bore of the bamboo coiled composite tube is 200mm hereinafter, further preferably 80mm~160mm, and
And from inside to outside mainly include the components such as liner layer 1, middle reinforcement layer 2 and external protection coating 3, separately below one by one specifically to it
It is bright.
Liner layer 1 is made of the fibrofelt or non-woven fabrics for being stained with anti-corrosion resin, and forms antiseepage and smooth inner wall,
Major function is in contact with all kinds of media to be conveyed, and before not corroded by medium and providing necessary internal pressure strength
It puts, it is ensured that the layer can carry out conveying medium to low-frictional force and low fluid transportation energy consumption as far as possible.
In the present invention, in view of the use demand of small-bore bamboo coiled composite tube, preferably by liner layer be designed as 2 layers or
The structure of more layers, specifically, the liner layer includes the first liner layer and the second liner layer from inside to outside, and by first
The thickness design of liner layer is the thickness less than the second liner layer, while the resin adhesive capacity of the first liner layer being designed as being greater than
The resin adhesive capacity of second liner layer.By this method, the first liner layer in inside can process to be formed it is more smooth
Inner surface reduces frictional force and energy consumption when pumped (conveying) medium, and the second liner layer in opposite exterior lateral sides is then to entire liner layer
Resistance to stress intensity and combination between middle reinforcement layer 2 play prior effect, especially avoid small-bore defeated
Send corrosion or impact failure of the medium to liner layer and entire tubing under occasion.In addition, can also be fine using bamboo in the liner layer
Dimension to form fibrofelt or non-woven fabrics to process；More specifically, first liner layer preferably uses 80g/m2~120g/m2And glue
Bamboo fiber felt of the impregnation rate greater than 90% or bamboo fiber nonwovens, second liner layer of glutinous agent preferably use 180g/m2~
250g/m2And bamboo fiber felt or bamboo fiber nonwovens of the impregnation rate of adhesive greater than 75%.For the thickness of entire liner layer
For, preferred 0.5mm~1.5mm.
As another key component of the invention, pipe of the middle reinforcement layer 2 to entire small-bore bamboo coiled composite tube material
Rigidity and anti-internal pressure performance play core influence.Correspondingly, it is significantly less than common tubing specification in the bore of entire tubing
Under Developed Background, it is necessary to which to middle reinforcement layer 2, emphasis is studied in terms of its specific structure composition and key parameter
And improvement.
Specifically, in the present invention, the middle reinforcement layer 2 is by being stained with the thin bamboo strips used for weaving piece multilayer uniform winding of resin in institute
It states and solidifies outside liner layer, and its overall thickness accounts for 75% or more of whole thickness of pipe wall, further preferably accounts for whole tubing wall
Thick 85%~90%；In addition, the specification of the thin bamboo strips used for weaving piece is set to wide 2mm~10mm, thickness 0.6mm~1.2mm,
Length has no specifically limited, and is all made of spiral way relative to the liner layer in entire winding process and is wound.
A preferred embodiment according to the invention, the thin bamboo strips used for weaving piece winding layer number of the middle reinforcement layer are preferably 2 layers~6 layers, and
Its winding angle is gradually incremented by from inside to outside.Further, minimum winding angle is preferably set to 20 °, and according to 3 ° every layer
~5 ° of angle is incremented by successively from inside to outside, until increasing to 80 ° of maximum winding angle.
By being designed above in relation to property, is mixed with resin by the way that middle reinforcement layer is directlyed adopt single thin bamboo strips used for weaving piece and twined
Around processing efficiency and quality controllability can not only be significantly improved in this way, it is often more important that, the thin bamboo strips used for weaving of above-mentioned specific dimensions specification
Piece can be fully extended in entire helical wrapping process, play its axial tensile strength to maximization；Further, since
It winds and winding angle successively can be gradually incremented by from inside to outside using spiral way from beginning to end, it accordingly can be by bamboo fibre certainly
The advantages such as the axial strength height and toughness of body be strong gradually uniformly diffuse to the multiple directions of tube wall, and play stress in multiple angles
The effect being complementary to one another can accordingly significantly improve phenomena such as bending or crack of tube wall, then ensure small-bore bamboo winding
Pipe can also keep the characteristics of pipeline overall structure unstressed distribution defect well under the conditions of long-time service, while improve bamboo
Coiled composite tube road can especially guarantee the reliability of performance in performances such as crushing resistance, ring stiffness steadily in the long term.
Another preferred embodiment according to the invention, in addition to these groups substantially of resin and thin bamboo strips used for weaving piece in above-mentioned middle reinforcement layer
/ outer, it further preferably can be added with biological based filler and curing agent, wherein passing through actual test, the resin, biology base
Mass fraction between filler and curing agent this three is set to 100:15~25:2~5, and sprinkling adheres to after mixing together
In on the thin bamboo strips used for weaving curtain.More specifically, the resin is selected from polyurethane resin, phenolic resin, Lauxite or asphalt mixtures modified by epoxy resin
One of rouge；The biology based filler is selected from bamboo and wood, fiber crops, stalk, plant shell or other rigid bio materials, and its
Average mesh number is set as 20~80.By designing above, the resin compound comprising biological based filler, curing agent can promote with
Filling and combination between each layer thin bamboo strips used for weaving piece adjacent to each other, and the biological based filler and bamboo of above-mentioned concrete type and granularity
Have good compatibility between fiber, and then the overall structural strength and anti-internal pressure of middle reinforcement layer can be further increased
Can, and help speed up middle reinforcement layer winding process operation during shaping efficiency and quality controllability.
Another preferred embodiment according to the invention can also additionally be set between above-mentioned liner layer and middle reinforcement layer
Boundary layer is set, which may be selected macromolecule modified resin appropriate and be made, and for further improving liner layer and centre
Bond strength between enhancement layer.
Finally, external protection coating 3 can directly coat the outer surface for being solidificated in middle reinforcement layer 2, and primarily serve waterproof and anticorrosion
And the effects of radiation protection.Specifically, it is 2 layers or 2 layers or more that the external protection coating, which can also spray, asphalt mixtures modified by epoxy resin for example can be used
The materials such as rouge, unsaturated polyester resin or pitch, and radiation protection filler is added, thickness is more preferably at least 3mm, so as to more preferable
Protective action is played on ground under all kinds of severe use environments to small-bore bamboo coiled composite tube material.
Bamboo coiled composite tube according to the invention is more clearly illustrated below in conjunction with some specific embodiments
Manufacturing process and its key process parameter design.
Embodiment 1
Raw bamboo is cutd open for multistage along its length, and the tabasheer of the bamboo blueness of each section of outer surface and inner surface is given respectively
Removal, wherein tabasheer removal thickness is set to 0.2mm, and bamboo blueness removal thickness is set to 0.3mm, and accordingly obtained cross section is
Rectangle and width are 4mm, are for example multiple thin bamboo strips used for weaving pieces of 2500mm or more with a thickness of 1mm, length, then to it through degreasing, cleaning
It is spare with dehydration.
One layer of mould release film is wrapped up on the polished glass fiber reinforced plastic straight pipe mold that outer diameter is 200mm, then with being stained with
The bamboo fiber nonwovens of anti-corrosion resin are successively made on pipe mold with a thickness of 0.5mm, density 80g/m2And impregnation rate is
92% the first liner layer and with a thickness of 1mm, density 200g/m2And the second liner layer that impregnation rate is 78%, wherein resin
Epoxy resin may be selected, antiseepage is consequently formed and smooth inner wall.
After liner layer solidification, the debatching on the wrapping machine by above-mentioned thin bamboo strips used for weaving piece, it is a plurality of pass through resin storage tank and apply apply tree
Then rouge uses 5 layers of uniform winding of spiral way point thereon from beginning to end relative to liner layer, winding angle is set as 65 degree, that
The overlap joint registration of this adjacent thin bamboo strips used for weaving piece is 2mm in the longitudinal direction, until completing thickness after solidifying accounts for whole thickness of pipe wall
85% or so middle reinforcement layer.
After all winding operations, middle reinforcement layer is formed by curing as pipe, then demoulding processing obtains bamboo and twines
Around multiple tube.Finally, thickness about 1.5mm is final to add in the unsaturated polyester resin of one layer of waterproof and anticorrosion function of tubing external spray
The bamboo coiled composite tube product that bore is 200mm is made in work.
Embodiment 2
Raw bamboo is cutd open for multistage along its length, and the tabasheer of the bamboo blueness of each section of outer surface and inner surface is given respectively
Removal, wherein tabasheer removal thickness is set to 0.4mm, and bamboo blueness removal thickness is set to 0.25mm, cross section is accordingly made
For rectangle and width is 6mm, is for example multiple thin bamboo strips used for weaving pieces of 2500mm or more with a thickness of 0.6mm, length, then to its through degreasing,
Cleaning and dehydration are spare.
One layer of mould release film is wrapped up on the polished glass fiber reinforced plastic straight pipe mold that outer diameter is 160mm, then with being stained with
The bamboo fiber nonwovens of anti-corrosion resin are successively made on pipe mold with a thickness of 0.2mm, density 100g/m2And impregnation rate is
95% the first liner layer and with a thickness of 0.3mm, density 250g/m2And the second liner layer that impregnation rate is 78%, wherein setting
Phenolic resin may be selected in rouge, antiseepage is consequently formed and smooth inner wall.
After liner layer solidification, the debatching on the wrapping machine by above-mentioned thin bamboo strips used for weaving piece, it is a plurality of pass through resin storage tank and apply apply tree
Then rouge uses 5 layers of uniform winding of spiral way point thereon from beginning to end relative to liner layer, initial wrap angle is set as 20
Degree, and winding angle is incremented by successively from inside to outside according to 5 ° every layer of angle, and the overlap joint registration of thin bamboo strips used for weaving piece adjacent to each other exists
It is 1.5mm on length direction, until completing 90% or so the middle reinforcement layer that thickness after solidifying accounts for whole thickness of pipe wall.
After all winding operations, middle reinforcement layer is formed by curing as pipe, then demoulding processing obtains bamboo and twines
Around multiple tube.Finally, thickness about 1.5mm is final to add in the unsaturated polyester resin of one layer of waterproof and anticorrosion function of tubing external spray
The bamboo coiled composite tube product that bore is 160mm is made in work.
Embodiment 3
Raw bamboo is cutd open for multistage along its length, and the tabasheer of the bamboo blueness of each section of outer surface and inner surface is given respectively
Removal, wherein tabasheer removal thickness is set to 0.4mm, and bamboo blueness removal thickness is set to 0.1mm, and accordingly obtained cross section is
Rectangle and width are 4mm, are for example multiple thin bamboo strips used for weaving pieces of 2500mm or more with a thickness of 1mm, length, then to it through degreasing, cleaning
It is spare with dehydration.
One layer of mould release film is wrapped up on the polished glass fiber reinforced plastic straight pipe mold that outer diameter is 160mm, then with being stained with
The bamboo fiber nonwovens of anti-corrosion resin are successively made on pipe mold with a thickness of 0.5mm, density 100g/m2And impregnation rate is
95% the first liner layer and with a thickness of 1mm, density 250g/m2And the second liner layer that impregnation rate is 78%, wherein resin
Phenolic resin may be selected, antiseepage is consequently formed and smooth inner wall.
After liner layer solidification, the debatching on the wrapping machine by above-mentioned thin bamboo strips used for weaving piece, it is a plurality of pass through resin storage tank and apply apply tree
Then rouge uses 5 layers of uniform winding of spiral way point thereon from beginning to end relative to liner layer, initial wrap angle is set as 30
Degree, and winding angle is incremented by successively from inside to outside according to 3 ° every layer of angle, and the overlap joint registration of thin bamboo strips used for weaving piece adjacent to each other exists
It is 1.2mm on length direction, until completing 87% or so the middle reinforcement layer that thickness after solidifying accounts for whole thickness of pipe wall.It crosses herein
Cheng Zhong, Choice of Resin be Lauxite and be 20 added with average mesh number stalk powder and a small amount of curing agent, wherein resin, straw
Parts by weight between stalk powder and curing agent three are 100:15:5.
After all winding operations, middle reinforcement layer is formed by curing as pipe, then demoulding processing obtains bamboo and twines
Around multiple tube.Finally, thickness about 1.5mm is final to add in the unsaturated polyester resin of one layer of waterproof and anticorrosion function of tubing external spray
The bamboo coiled composite tube product that bore is 160mm is made in work.
Embodiment 4
Raw bamboo is cutd open for multistage along its length, and the tabasheer of the bamboo blueness of each section of outer surface and inner surface is given respectively
Removal, wherein tabasheer removal thickness is set to 0.35mm, and bamboo blueness removal thickness is set to 0.2mm, cross section is accordingly made
For rectangle and width is 10mm, is multiple thin bamboo strips used for weaving pieces of 2500mm or more with a thickness of 1mm, length, then to its through degreasing, cleaning and
Dehydration is spare.
One layer of mould release film is wrapped up on the polished glass fiber reinforced plastic straight pipe mold that outer diameter is 180mm, then with being stained with
The bamboo fiber nonwovens of anti-corrosion resin are successively made on pipe mold with a thickness of 0.35mm, density 80g/m2And impregnation rate is
92% the first liner layer and with a thickness of 0.65mm, density 180g/m2And the second liner layer that impregnation rate is 80%, wherein setting
Epoxy resin may be selected in rouge, antiseepage is consequently formed and smooth inner wall.
After liner layer solidification, the debatching on the wrapping machine by above-mentioned thin bamboo strips used for weaving piece, it is a plurality of pass through resin storage tank and apply apply tree
Then rouge uses 4 layers of uniform winding of spiral way point thereon from beginning to end relative to liner layer, initial wrap angle is set as 35
Degree, and winding angle is incremented by successively from inside to outside according to 5 ° every layer of angle, and the overlap joint registration of thin bamboo strips used for weaving piece adjacent to each other exists
It is 1mm on length direction, until completing 90% or so the middle reinforcement layer that thickness after solidifying accounts for whole thickness of pipe wall.In this process
In, Choice of Resin be epoxy resin and added with average mesh number be 80 bamboo powder and a small amount of curing agent, wherein resin, bamboo powder and solid
Parts by weight between agent three are 100:15:3.
After all winding operations, middle reinforcement layer is formed by curing as pipe, then demoulding processing obtains bamboo and twines
Around multiple tube.Finally, thickness about 1.5mm is final to add in the unsaturated polyester resin of one layer of waterproof and anticorrosion function of tubing external spray
The bamboo coiled composite tube product that bore is 180mm is made in work.
Embodiment 5
Raw bamboo is cutd open for multistage along its length, and the tabasheer of the bamboo blueness of each section of outer surface and inner surface is given respectively
Removal, wherein tabasheer removal thickness is set to 0.2mm, and bamboo blueness removal thickness is set to 0.2mm, and accordingly obtained cross section is
Rectangle and width are 2mm, are multiple thin bamboo strips used for weaving pieces of 2500mm or more with a thickness of 1mm, length, then through degreasing, cleaning and are taken off to it
Water process is spare.
One layer of mould release film is wrapped up on the polished glass fiber reinforced plastic straight pipe mold that outer diameter is 80mm, it is then anti-with being stained with
The bamboo fiber nonwovens of rotten resin are successively made on pipe mold with a thickness of 0.5mm, density 80g/m2And impregnation rate is 92%
The first liner layer and with a thickness of 1mm, density 180g/m2And the second liner layer that impregnation rate is 80%, wherein resin is optional
Epoxy resin is selected, antiseepage is consequently formed and smooth inner wall.
After liner layer solidification, the debatching on the wrapping machine by above-mentioned thin bamboo strips used for weaving piece, it is a plurality of pass through resin storage tank and apply apply tree
Then rouge uses 3 layers of uniform winding of spiral way point thereon from beginning to end relative to liner layer, initial wrap angle is set as 45
Degree, and winding angle is incremented by successively from inside to outside according to 3 ° every layer of angle, and the overlap joint registration of thin bamboo strips used for weaving piece adjacent to each other exists
It is 1.5mm on length direction, until completing 86% or so the middle reinforcement layer that thickness after solidifying accounts for whole thickness of pipe wall.It crosses herein
Cheng Zhong, Choice of Resin be epoxy resin and be 60 added with average mesh number stalk powder and a small amount of curing agent, wherein resin, straw
Parts by weight between stalk powder and curing agent three are 100:12:5.
After all winding operations, middle reinforcement layer is formed by curing as pipe, then demoulding processing obtains bamboo and twines
Around multiple tube.Finally, thickness about 1mm is final to process in the unsaturated polyester resin of one layer of waterproof and anticorrosion function of tubing external spray
The bamboo coiled composite tube product that bore is 80mm is made.
Embodiment 6
Raw bamboo is cutd open for multistage along its length, and the tabasheer of the bamboo blueness of each section of outer surface and inner surface is given respectively
Removal, wherein tabasheer removal thickness is set to 0.4mm, and bamboo blueness removal thickness is set to 0.2mm, and accordingly obtained cross section is
Rectangle and width be 4mm, be multiple thin bamboo strips used for weaving pieces of 2500mm or more with a thickness of 1.2mm, length, then to its through degreasing, cleaning and
Dehydration is spare.
One layer of mould release film is wrapped up on the polished glass fiber reinforced plastic straight pipe mold that outer diameter is 180mm, then with being stained with
The bamboo fiber nonwovens of anti-corrosion resin are successively made on pipe mold with a thickness of 0.6mm, density 80g/m2And impregnation rate is
92% the first liner layer and with a thickness of 0.8mm, density 180g/m2And the second liner layer that impregnation rate is 80%, wherein setting
Epoxy resin may be selected in rouge, antiseepage is consequently formed and smooth inner wall.
After liner layer solidification, the debatching on the wrapping machine by above-mentioned thin bamboo strips used for weaving piece, it is a plurality of pass through resin storage tank and apply apply tree
Then rouge uses 4 layers of uniform winding of spiral way point thereon from beginning to end relative to liner layer, initial wrap angle is set as 30
Degree, and winding angle is incremented by successively from inside to outside according to 4 ° every layer of angle, and the overlap joint registration of thin bamboo strips used for weaving piece adjacent to each other exists
It is 1.8mm on length direction, until completing 75% or so the middle reinforcement layer that thickness after solidifying accounts for whole thickness of pipe wall.It crosses herein
Cheng Zhong, it is 100:15:2 that resin, which selects the parts by weight between coconut shell powder powder and curing agent three,.
After all winding operations, middle reinforcement layer is formed by curing as pipe, then demoulding processing obtains bamboo and twines
Around multiple tube.Finally, thickness about 1.5mm is final to add in the unsaturated polyester resin of one layer of waterproof and anticorrosion function of tubing external spray
The bamboo coiled composite tube product that bore is 180mm is made in work.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, not to
The limitation present invention, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should all include
Within protection scope of the present invention.
Claims (40)
1. a kind of small-bore bamboo coiled composite tube, which is characterized in that the diameter of bore of the bamboo coiled composite tube be 200mm with
Under, and from inside to outside successively include liner layer, middle reinforcement layer and external protection coating, in which:
The liner layer is solidified by the fibrofelt for being soaked with adhesive to be made, and forms antiseepage and smooth inner wall；
The middle reinforcement layer is solidified outside the liner layer by the single thin bamboo strips used for weaving piece multilayer uniform winding for being stained with resin,
And its overall thickness accounts for 75% or more of whole thickness of pipe wall, wherein the specification of the thin bamboo strips used for weaving piece be set to wide 2mm~10mm,
Thickness 0.6mm~1.2mm, and be all made of spiral way relative to the liner layer in entire winding process and be wound,
The thin bamboo strips used for weaving piece winding layer number of the middle reinforcement layer is 2 layers~6 layers, and its winding angle is gradually incremented by from inside to outside；With this side
Formula, the thin bamboo strips used for weaving piece can get in entire helical wrapping process and be fully extended, while the axial direction that its bamboo fibre has is strong
Degree and toughness characteristics are able to gradually uniformly diffuse to the multiple directions of tube wall, and play the work that stress is complementary to one another in multiple angles
With；
Then directly coating is solidificated in the outer surface of the middle reinforcement layer to the external protection coating, and plays waterproof and anticorrosion and radiation protection
Effect.
2. small-bore bamboo coiled composite tube as described in claim 1, which is characterized in that the overall thickness of middle reinforcement layer is set
It is set to and accounts for the 85%~90% of whole tube wall thickness.
3. small-bore bamboo coiled composite tube as described in claim 1, which is characterized in that the cross-sectional shape of the thin bamboo strips used for weaving piece
It is processed into rectangle, moisture content is 8%~15%, and the overlap joint registration between adjacent thin bamboo strips used for weaving piece does not surpass in the longitudinal direction
Cross 2mm.
4. small-bore bamboo coiled composite tube as claimed in any one of claims 1-3, which is characterized in that for above-mentioned liner
It with a thickness of 0.5mm~1.5mm, and from inside to outside include the first liner layer and the second liner layer, wherein this is in first for layer
The thickness of lining is less than second liner layer, and the resin adhesive capacity of first liner layer is set to be greater than second liner
Layer.
5. small-bore bamboo coiled composite tube as claimed in claim 4, which is characterized in that first liner layer uses 80g/
m2~120g/m2And the impregnation rate of adhesive is greater than 90% bamboo fiber felt, second liner layer uses 180g/m2~
250g/m2And the impregnation rate of adhesive is greater than 75% bamboo fiber felt.
6. small-bore bamboo coiled composite tube as claimed in claim 5, which is characterized in that the tabasheer of above-mentioned thin bamboo strips used for weaving piece removes thick
Degree is set to 0.2mm~0.4mm, and bamboo blueness removal thickness is set to 0.1mm~0.3mm.
7. a kind of method for manufacturing small-bore bamboo coiled composite tube, which is characterized in that this method includes the following steps:
(a) the cutting processing of thin bamboo strips used for weaving piece: raw bamboo being cutd open along its length for multistage, and by the bamboo blueness of each section of outer surface and interior table
The tabasheer in face is removed respectively, and wherein tabasheer removal thickness is set to 0.2mm~0.4mm, and bamboo blueness removal thickness is set
For 0.1mm~0.3mm, accordingly obtained cross section be rectangle and width be 2mm~10mm, multiple bamboos with a thickness of 0.6mm~1.2mm
Thin bamboo strip；
(b) preparation of liner layer: on straight tube mold be stained with anti-corrosion resin fibrofelt production with a thickness of 0.5mm~
The liner layer of 1.5mm, and form antiseepage and smooth inner wall；
(c) preparation of middle reinforcement layer: a plurality of to pass through resin storage tank and apply by obtained thin bamboo strips used for weaving piece mounted in debatching on wrapping machine
Upper resin, then each single thin bamboo strips used for weaving piece uses spiral way multilayer uniform winding thereon relative to the liner layer from beginning to end,
Until completing the middle reinforcement layer of required thickness；In the process, the winding layer number of the thin bamboo strips used for weaving piece is 2 layers~6 layers, winding
Angle is gradually incremented by according to every layer 3 °~5 ° of angle from inside to outside, and controls so that finally solidifying the thickness for the middle reinforcement layer completed
Degree accounts for 75% or more of whole thickness of pipe wall；
(d) preparation of external protection coating: in the outer surface direct spraying anti-corrosion waterproof and radiation proof material of the middle reinforcement layer, most
End form at required small-bore specification bamboo coiled composite tube product.
8. a kind of small-bore bamboo coiled composite tube, which is characterized in that the diameter of bore of the bamboo coiled composite tube be 200mm with
Under, and from inside to outside successively include liner layer, middle reinforcement layer and external protection coating, in which:
The liner layer is solidified by the fibrofelt for being soaked with adhesive to be made, and forms antiseepage and smooth inner wall；
The middle reinforcement layer is solidified outside the liner layer by the single thin bamboo strips used for weaving piece multilayer uniform winding for being stained with resin,
And its overall thickness accounts for 75% or more of whole thickness of pipe wall, wherein the specification of the thin bamboo strips used for weaving piece be set to wide 2mm~10mm,
Thickness 0.6mm~1.2mm, and be all made of spiral way relative to the liner layer in entire winding process and be wound,
The thin bamboo strips used for weaving piece winding layer number of the middle reinforcement layer is 2 layers~6 layers, and its winding angle is gradually incremented by from inside to outside；For institute
For stating middle reinforcement layer, minimum winding angle is set to 20 °, and successively passs from inside to outside according to every layer 3 °~5 ° of angle
Increase, until increasing to 80 ° of maximum winding angle；By this method, the thin bamboo strips used for weaving piece can get abundant in entire helical wrapping process
Stretching, extension, while the axial strength that has of its bamboo fibre and toughness characteristics are able to gradually uniformly diffuse to multiple sides of tube wall
To, and play the role of stress in multiple angles and be complementary to one another；
Then directly coating is solidificated in the outer surface of the middle reinforcement layer to the external protection coating, and plays waterproof and anticorrosion and radiation protection
Effect.
9. small-bore bamboo coiled composite tube as claimed in claim 8, which is characterized in that the overall thickness of middle reinforcement layer is set
It is set to and accounts for the 85%~90% of whole tube wall thickness.
10. small-bore bamboo coiled composite tube as claimed in claim 8, which is characterized in that in above-mentioned middle reinforcement layer in addition to
Except thin bamboo strips used for weaving piece and resin, also added with biological based filler and curing agent, wherein the resin, biological based filler and curing agent
Mass fraction between this three is set to 100:10~15:2~5, and sprinkling is adhered to the thin bamboo strips used for weaving piece after mixing together
On；Wherein, the resin is selected from one of polyurethane resin, phenolic resin, Lauxite or epoxy resin；The life
Object based filler is selected from bamboo and wood, fiber crops, stalk or plant shell, and its average mesh number is set as 20~80.
11. small-bore bamboo coiled composite tube as claimed in claim 8, which is characterized in that the cross section shape of the thin bamboo strips used for weaving piece
Shape is processed into rectangle, and moisture content is 8%~15%, and the overlap joint registration between adjacent thin bamboo strips used for weaving piece is in the longitudinal direction not
More than 2mm.
12. the small-bore bamboo coiled composite tube as described in claim 8-11 any one, which is characterized in that for above-mentioned interior
For lining, with a thickness of 0.5mm~1.5mm, and from inside to outside include the first liner layer and the second liner layer, wherein this first
The thickness of liner layer is less than second liner layer, and the resin adhesive capacity of first liner layer is set to be greater than this in second
Lining.
13. small-bore bamboo coiled composite tube as claimed in claim 12, which is characterized in that first liner layer uses
80g/m2~120g/m2And the impregnation rate of adhesive is greater than 90% bamboo fiber felt, second liner layer uses 180g/m2~
250g/m2And the impregnation rate of adhesive is greater than 75% bamboo fiber felt.
14. small-bore bamboo coiled composite tube as claimed in claim 13, which is characterized in that the tabasheer of above-mentioned thin bamboo strips used for weaving piece removes
Thickness is set to 0.2mm~0.4mm, and bamboo blueness removal thickness is set to 0.1mm~0.3mm.
15. a kind of method for manufacturing small-bore bamboo coiled composite tube, which is characterized in that this method includes the following steps:
(a) the cutting processing of thin bamboo strips used for weaving piece: raw bamboo being cutd open along its length for multistage, and by the bamboo blueness of each section of outer surface and interior table
The tabasheer in face is removed respectively, and wherein tabasheer removal thickness is set to 0.2mm~0.4mm, and bamboo blueness removal thickness is set
For 0.1mm~0.3mm, accordingly obtained cross section be rectangle and width be 2mm~10mm, multiple bamboos with a thickness of 0.6mm~1.2mm
Thin bamboo strip；
(b) preparation of liner layer: on straight tube mold be stained with anti-corrosion resin fibrofelt production with a thickness of 0.5mm~
The liner layer of 1.5mm, and form antiseepage and smooth inner wall；
(c) preparation of middle reinforcement layer: a plurality of to pass through resin storage tank and apply by obtained thin bamboo strips used for weaving piece mounted in debatching on wrapping machine
Upper resin, then each single thin bamboo strips used for weaving piece uses spiral way multilayer uniform winding thereon relative to the liner layer from beginning to end,
Until completing the middle reinforcement layer of required thickness；In the process, the winding layer number of the thin bamboo strips used for weaving piece is 2 layers~6 layers, winding
Angle is gradually incremented by according to every layer 3 °~5 ° of angle from inside to outside, and controls so that finally solidifying the thickness for the middle reinforcement layer completed
Degree accounts for 75% or more of whole thickness of pipe wall；For above-mentioned steps (c), the minimum winding angle of the thin bamboo strips used for weaving piece is 20 °, and is pressed
It is incremented by successively from inside to outside according to every layer 3 °~5 ° of angle, until increasing to 80 ° of maximum winding angle；
(d) preparation of external protection coating: in the outer surface direct spraying anti-corrosion waterproof and radiation proof material of the middle reinforcement layer, most
End form at required small-bore specification bamboo coiled composite tube product.
16. a kind of small-bore bamboo coiled composite tube, which is characterized in that the diameter of bore of the bamboo coiled composite tube be 200mm with
Under, and from inside to outside successively include liner layer, middle reinforcement layer and external protection coating, in which:
The liner layer is solidified by the fibrofelt for being soaked with adhesive to be made, and forms antiseepage and smooth inner wall；
The middle reinforcement layer is solidified outside the liner layer by the single thin bamboo strips used for weaving piece multilayer uniform winding for being stained with resin,
And its overall thickness accounts for 75% or more of whole thickness of pipe wall, wherein the specification of the thin bamboo strips used for weaving piece be set to wide 2mm~10mm,
Thickness 0.6mm~1.2mm, and be all made of spiral way relative to the liner layer in entire winding process and be wound,
The thin bamboo strips used for weaving piece winding layer number of the middle reinforcement layer is 2 layers~6 layers, and its winding angle is gradually incremented by from inside to outside；With this side
Formula, the thin bamboo strips used for weaving piece can get in entire helical wrapping process and be fully extended, while the axial direction that its bamboo fibre has is strong
Degree and toughness characteristics are able to gradually uniformly diffuse to the multiple directions of tube wall, and play the work that stress is complementary to one another in multiple angles
With；
In above-mentioned middle reinforcement layer other than thin bamboo strips used for weaving piece and resin, it is also added with biological based filler and curing agent, wherein institute
The mass fraction stated between resin, biological based filler and curing agent this three is set to 100:10~15:2~5, and mixes together
Sprinkling is adhered to the thin bamboo strips used for weaving on piece after conjunction；Wherein, the resin selected from polyurethane resin, phenolic resin, Lauxite or
One of person's epoxy resin；The biology based filler is selected from bamboo and wood, fiber crops, stalk or plant shell, and its average mesh number is set
It is set to 20~80；
Then directly coating is solidificated in the outer surface of the middle reinforcement layer to the external protection coating, and plays waterproof and anticorrosion and radiation protection
Effect.
17. small-bore bamboo coiled composite tube as claimed in claim 16, which is characterized in that the overall thickness quilt of middle reinforcement layer
It is set as accounting for the 85%~90% of whole tube wall thickness.
18. small-bore bamboo coiled composite tube as claimed in claim 16, which is characterized in that the cross section shape of the thin bamboo strips used for weaving piece
Shape is processed into rectangle, and moisture content is 8%~15%, and the overlap joint registration between adjacent thin bamboo strips used for weaving piece is in the longitudinal direction not
More than 2mm.
19. the small-bore bamboo coiled composite tube as described in claim 16-18 any one, which is characterized in that for above-mentioned
With a thickness of 0.5mm~1.5mm, and from inside to outside include the first liner layer and the second liner layer for liner layer, wherein this
The thickness of one liner layer be less than second liner layer, and the resin adhesive capacity of first liner layer be set to be greater than this second
Liner layer.
20. small-bore bamboo coiled composite tube as claimed in claim 19, which is characterized in that first liner layer uses
80g/m2~120g/m2And the impregnation rate of adhesive is greater than 90% bamboo fiber felt, second liner layer uses 180g/m2~
250g/m2And the impregnation rate of adhesive is greater than 75% bamboo fiber felt.
21. small-bore bamboo coiled composite tube as claimed in claim 20, which is characterized in that the tabasheer of above-mentioned thin bamboo strips used for weaving piece removes
Thickness is set to 0.2mm~0.4mm, and bamboo blueness removal thickness is set to 0.1mm~0.3mm.
22. a kind of method for manufacturing small-bore bamboo coiled composite tube, which is characterized in that this method includes the following steps:
(a) the cutting processing of thin bamboo strips used for weaving piece: raw bamboo being cutd open along its length for multistage, and by the bamboo blueness of each section of outer surface and interior table
The tabasheer in face is removed respectively, and wherein tabasheer removal thickness is set to 0.2mm~0.4mm, and bamboo blueness removal thickness is set
For 0.1mm~0.3mm, accordingly obtained cross section be rectangle and width be 2mm~10mm, multiple bamboos with a thickness of 0.6mm~1.2mm
Thin bamboo strip；
(b) preparation of liner layer: on straight tube mold be stained with anti-corrosion resin fibrofelt production with a thickness of 0.5mm~
The liner layer of 1.5mm, and form antiseepage and smooth inner wall；
(c) preparation of middle reinforcement layer: a plurality of to pass through resin storage tank and apply by obtained thin bamboo strips used for weaving piece mounted in debatching on wrapping machine
Upper resin, then each single thin bamboo strips used for weaving piece uses spiral way multilayer uniform winding thereon relative to the liner layer from beginning to end,
Until completing the middle reinforcement layer of required thickness；In the process, the winding layer number of the thin bamboo strips used for weaving piece is 2 layers~6 layers, winding
Angle is gradually incremented by according to every layer 3 °~5 ° of angle from inside to outside, and controls so that finally solidifying the thickness for the middle reinforcement layer completed
Degree accounts for 75% or more of whole thickness of pipe wall；In above-mentioned middle reinforcement layer other than thin bamboo strips used for weaving piece and resin, it is also added with biology base
Filler and curing agent, wherein the mass fraction between the resin, biological based filler and curing agent this three is set to
100:10~15:2~5, and sprinkling is adhered to the thin bamboo strips used for weaving on piece after mixing together；Wherein, the resin is selected from polyurethane
One of resin, phenolic resin, Lauxite or epoxy resin；It is described biology based filler be selected from bamboo and wood, fiber crops, stalk or
Plant shell, and its average mesh number is set as 20~80；
(d) preparation of external protection coating: in the outer surface direct spraying anti-corrosion waterproof and radiation proof material of the middle reinforcement layer, most
End form at required small-bore specification bamboo coiled composite tube product.
23. a kind of small-bore bamboo coiled composite tube, which is characterized in that the diameter of bore of the bamboo coiled composite tube be 200mm with
Under, and from inside to outside successively include liner layer, middle reinforcement layer and external protection coating, in which:
The liner layer is solidified by the non-woven fabrics for being soaked with adhesive to be made, and forms antiseepage and smooth inner wall；
The middle reinforcement layer is solidified outside the liner layer by the single thin bamboo strips used for weaving piece multilayer uniform winding for being stained with resin,
And its overall thickness accounts for 75% or more of whole thickness of pipe wall, wherein the specification of the thin bamboo strips used for weaving piece be set to wide 2mm~10mm,
Thickness 0.6mm~1.2mm, and be all made of spiral way relative to the liner layer in entire winding process and be wound,
The thin bamboo strips used for weaving piece winding layer number of the middle reinforcement layer is 2 layers~6 layers, and its winding angle is gradually incremented by from inside to outside；With this side
Formula, the thin bamboo strips used for weaving piece can get in entire helical wrapping process and be fully extended, while the axial direction that its bamboo fibre has is strong
Degree and toughness characteristics are able to gradually uniformly diffuse to the multiple directions of tube wall, and play the work that stress is complementary to one another in multiple angles
With；
Then directly coating is solidificated in the outer surface of the middle reinforcement layer to the external protection coating, and plays waterproof and anticorrosion and radiation protection
Effect.
24. small-bore bamboo coiled composite tube as claimed in claim 23, which is characterized in that for the middle reinforcement layer
Speech, minimum winding angle are set to 20 °, and incremented by successively from inside to outside according to every layer 3 °~5 ° of angle, until increasing to 80 °
Maximum winding angle.
25. small-bore bamboo coiled composite tube as claimed in claim 23, which is characterized in that the overall thickness quilt of middle reinforcement layer
It is set as accounting for the 85%~90% of whole tube wall thickness.
26. small-bore bamboo coiled composite tube as claimed in claim 23, which is characterized in that in above-mentioned middle reinforcement layer in addition to
Except thin bamboo strips used for weaving piece and resin, also added with biological based filler and curing agent, wherein the resin, biological based filler and curing agent
Mass fraction between this three is set to 100:10~15:2~5, and sprinkling is adhered to the thin bamboo strips used for weaving piece after mixing together
On；Wherein, the resin is selected from one of polyurethane resin, phenolic resin, Lauxite or epoxy resin；The life
Object based filler is selected from bamboo and wood, fiber crops, stalk or plant shell, and its average mesh number is set as 20~80.
27. small-bore bamboo coiled composite tube as claimed in claim 23, which is characterized in that the cross section shape of the thin bamboo strips used for weaving piece
Shape is processed into rectangle, and moisture content is 8%~15%, and the overlap joint registration between adjacent thin bamboo strips used for weaving piece is in the longitudinal direction not
More than 2mm.
28. the small-bore bamboo coiled composite tube as described in claim 23-27 any one, which is characterized in that for above-mentioned
With a thickness of 0.5mm~1.5mm, and from inside to outside include the first liner layer and the second liner layer for liner layer, wherein this
The thickness of one liner layer be less than second liner layer, and the resin adhesive capacity of first liner layer be set to be greater than this second
Liner layer.
29. small-bore bamboo coiled composite tube as claimed in claim 28, which is characterized in that first liner layer uses
80g/m2~120g/m2And the impregnation rate of adhesive is greater than 90% bamboo fiber nonwovens, second liner layer uses 180g/
m2~250g/m2And the impregnation rate of adhesive is greater than 75% bamboo fiber nonwovens.
30. small-bore bamboo coiled composite tube as claimed in claim 29, which is characterized in that the tabasheer of above-mentioned thin bamboo strips used for weaving piece removes
Thickness is set to 0.2mm~0.4mm, and bamboo blueness removal thickness is set to 0.1mm~0.3mm.
31. a kind of method for manufacturing small-bore bamboo coiled composite tube, which is characterized in that this method includes the following steps:
(a) the cutting processing of thin bamboo strips used for weaving piece: raw bamboo being cutd open along its length for multistage, and by the bamboo blueness of each section of outer surface and interior table
The tabasheer in face is removed respectively, and wherein tabasheer removal thickness is set to 0.2mm~0.4mm, and bamboo blueness removal thickness is set
For 0.1mm~0.3mm, accordingly obtained cross section be rectangle and width be 2mm~10mm, multiple bamboos with a thickness of 0.6mm~1.2mm
Thin bamboo strip；
(b) preparation of liner layer: on straight tube mold be stained with anti-corrosion resin non-woven fabrics production with a thickness of 0.5mm~
The liner layer of 1.5mm, and form antiseepage and smooth inner wall；
(c) preparation of middle reinforcement layer: a plurality of to pass through resin storage tank and apply by obtained thin bamboo strips used for weaving piece mounted in debatching on wrapping machine
Upper resin, then each single thin bamboo strips used for weaving piece uses spiral way multilayer uniform winding thereon relative to the liner layer from beginning to end,
Until completing the middle reinforcement layer of required thickness；In the process, the winding layer number of the thin bamboo strips used for weaving piece is 2 layers~6 layers, winding
Angle is gradually incremented by according to every layer 3 °~5 ° of angle from inside to outside, and controls so that finally solidifying the thickness for the middle reinforcement layer completed
Degree accounts for 75% or more of whole thickness of pipe wall；
(d) preparation of external protection coating: in the outer surface direct spraying anti-corrosion waterproof and radiation proof material of the middle reinforcement layer, most
End form at required small-bore specification bamboo coiled composite tube product.
32. a kind of small-bore bamboo coiled composite tube, which is characterized in that the diameter of bore of the bamboo coiled composite tube is less than 200mm,
It and from inside to outside successively include liner layer, middle reinforcement layer and external protection coating, in which:
The liner layer is made by the fibrofelt for being soaked with adhesive, and forms antiseepage and smooth inner wall；
The middle reinforcement layer is solidified outside the liner layer by the single thin bamboo strips used for weaving piece multilayer uniform winding for being stained with resin,
And its overall thickness accounts for 75% or more of whole thickness of pipe wall, wherein the specification of the thin bamboo strips used for weaving piece is set to be wider than or be equal to
2mm is less than 10mm, thickness 0.6mm~1.2mm, and is all made of spiral side relative to the liner layer in entire winding process
Formula is wound, and the thin bamboo strips used for weaving piece winding layer number of the middle reinforcement layer is 2 layers~6 layers, and its winding angle is from inside to outside gradually
It is incremented by；By this method, the thin bamboo strips used for weaving piece can get in entire helical wrapping process and be fully extended, while its bamboo fibre is had
Standby axial strength and toughness characteristics is able to gradually uniformly diffuse to the multiple directions of tube wall, and plays stress phase in multiple angles
The effect mutually supplemented；
Then directly coating is solidificated in the outer surface of the middle reinforcement layer to the external protection coating, and plays waterproof and anticorrosion and radiation protection
Effect.
33. small-bore bamboo coiled composite tube as claimed in claim 32, which is characterized in that the overall thickness quilt of middle reinforcement layer
It is set as accounting for the 85%~90% of whole tube wall thickness.
34. small-bore bamboo coiled composite tube as claimed in claim 32, which is characterized in that in above-mentioned middle reinforcement layer in addition to
Except thin bamboo strips used for weaving piece and resin, also added with biological based filler and curing agent, wherein the resin, biological based filler and curing agent
Mass fraction between this three is set to 100:10~15:2~5, and sprinkling is adhered to the thin bamboo strips used for weaving piece after mixing together
On；Wherein, the resin is selected from one of polyurethane resin, phenolic resin, Lauxite or epoxy resin；The life
Object based filler is selected from bamboo and wood, fiber crops, stalk or plant shell, and its average mesh number is set as 20~80.
35. small-bore bamboo coiled composite tube as claimed in claim 32, which is characterized in that the cross section shape of the thin bamboo strips used for weaving piece
Shape is processed into rectangle, and moisture content is 8%~15%, and the overlap joint registration between adjacent thin bamboo strips used for weaving piece is in the longitudinal direction not
More than 2mm.
36. small-bore bamboo coiled composite tube as claimed in claim 32, which is characterized in that for the middle reinforcement layer
Speech, minimum winding angle are set to 20 °, and incremented by successively from inside to outside according to every layer 3 °~5 ° of angle, until increasing to 80 °
Maximum winding angle.
37. the small-bore bamboo coiled composite tube as described in claim 32-36 any one, which is characterized in that for above-mentioned
With a thickness of 0.5mm~1.5mm, and from inside to outside include the first liner layer and the second liner layer for liner layer, wherein this
The thickness of one liner layer be less than second liner layer, and the resin adhesive capacity of first liner layer be set to be greater than this second
Liner layer.
38. small-bore bamboo coiled composite tube as claimed in claim 37, which is characterized in that first liner layer uses
80g/m2~120g/m2And the impregnation rate of adhesive is greater than 90% bamboo fiber felt, second liner layer uses 180g/m2~
250g/m2And the impregnation rate of adhesive is greater than 75% bamboo fiber felt.
39. small-bore bamboo coiled composite tube as claimed in claim 38, which is characterized in that the tabasheer of above-mentioned thin bamboo strips used for weaving piece removes
Thickness is set to 0.2mm~0.4mm, and bamboo blueness removal thickness is set to 0.1mm~0.3mm.
40. a kind of method for manufacturing small-bore bamboo coiled composite tube, which is characterized in that this method includes the following steps:
(a) the cutting processing of thin bamboo strips used for weaving piece: raw bamboo being cutd open along its length for multistage, and by the bamboo blueness of each section of outer surface and interior table
The tabasheer in face is removed respectively, and wherein tabasheer removal thickness is set to 0.2mm~0.4mm, and bamboo blueness removal thickness is set
For 0.1mm~0.3mm, accordingly obtained cross section be rectangle and it is a width of more than or be equal to 2mm be less than 10mm, with a thickness of 0.6mm~
Multiple thin bamboo strips used for weaving pieces of 1.2mm；
(b) preparation of liner layer: on straight tube mold be stained with anti-corrosion resin fibrofelt production with a thickness of 0.5mm~
The liner layer of 1.5mm, and form antiseepage and smooth inner wall；
(c) preparation of middle reinforcement layer: a plurality of to pass through resin storage tank and apply by obtained thin bamboo strips used for weaving piece mounted in debatching on wrapping machine
Upper resin, then each single thin bamboo strips used for weaving piece uses spiral way multilayer uniform winding thereon relative to the liner layer from beginning to end,
Until completing the middle reinforcement layer of required thickness；In the process, the winding layer number of the thin bamboo strips used for weaving piece is 2 layers~6 layers, winding
Angle is gradually incremented by according to every layer 3 °~5 ° of angle from inside to outside, and controls so that finally solidifying the thickness for the middle reinforcement layer completed
Degree accounts for 75% or more of whole thickness of pipe wall；
(d) preparation of external protection coating: in the outer surface direct spraying anti-corrosion waterproof and radiation proof material of the middle reinforcement layer, most
End form at required small-bore specification bamboo coiled composite tube product.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610237387.1A CN105715882B (en) | 2016-04-15 | 2016-04-15 | A kind of small-bore bamboo coiled composite tube and its manufacturing method |
| PCT/CN2016/109942 WO2017177709A1 (en) | 2016-04-15 | 2016-12-14 | Small-diameter bamboo-wound composite tube and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610237387.1A CN105715882B (en) | 2016-04-15 | 2016-04-15 | A kind of small-bore bamboo coiled composite tube and its manufacturing method |
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| CN105715882A CN105715882A (en) | 2016-06-29 |
| CN105715882B true CN105715882B (en) | 2019-12-03 |
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| WO (1) | WO2017177709A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105715882B (en) * | 2016-04-15 | 2019-12-03 | 浙江鑫宙竹基复合材料科技有限公司 | A kind of small-bore bamboo coiled composite tube and its manufacturing method |
| CN106195464B (en) * | 2016-08-26 | 2019-06-14 | 浙江鑫宙竹基复合材料科技有限公司 | A kind of bamboo winding composite pressure pipe |
| CN108018872A (en) * | 2016-10-31 | 2018-05-11 | 浙江鑫宙竹基复合材料科技有限公司 | A kind of piping lane for the straight tube of the compound pipe gallery of bamboo and including the straight tube |
| CN108561637B (en) * | 2018-05-29 | 2023-07-07 | 中林鑫宙竹缠绕发展有限公司 | Preparation method of bamboo winding reducer pipe and reducer pipe prepared by using same |
| CN108638271B (en) * | 2018-05-29 | 2023-03-31 | 中林鑫宙竹缠绕发展有限公司 | Preparation method of bamboo-wound reducer pipe and reducer pipe prepared by using same |
| CN108656294B (en) * | 2018-05-29 | 2023-04-11 | 中林鑫宙竹缠绕发展有限公司 | Forming method of bamboo winding reducer pipe and reducer pipe formed by applying forming method |
| CN109184081A (en) * | 2018-08-21 | 2019-01-11 | 南京林业大学 | A kind of lightweight fills out core bamboo trunk structure |
| CN109129801B (en) * | 2018-10-10 | 2024-06-18 | 南京林业大学 | Manufacturing method of annular continuous bamboo stirrups |
| CN109571689A (en) * | 2018-11-21 | 2019-04-05 | 鑫竹海(山东)管道制造有限公司 | A kind of compound rain sewage pipe production technology of bamboo winding |
| WO2021129295A1 (en) * | 2019-12-23 | 2021-07-01 | 浙江鑫宙竹基复合材料科技有限公司 | Bamboo-based winding composite pipe and manufacturing method therefor |
| CN112318892B (en) * | 2020-10-19 | 2024-03-26 | 广西北海跃达玻璃钢制品有限公司 | Glass fiber reinforced plastic braided pultrusion winding pipe and preparation method thereof |
| CN112606153A (en) * | 2020-12-23 | 2021-04-06 | 白建国 | Production method of harvesting and separating long-arm bamboo pipe |
| CN118194418B (en) * | 2024-05-17 | 2024-08-06 | 浙江数智交院科技股份有限公司 | Design method and system of bamboo winding composite pipe culvert under highway load effect |
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| CN202327397U (en) * | 2011-11-17 | 2012-07-11 | 新疆广水管道有限公司 | Bamboo composite pressure pipe |
| CN104089105A (en) * | 2014-07-07 | 2014-10-08 | 浙江鑫宙竹基复合材料科技有限公司 | Method for manufacturing bamboo-plastic winding composite pipe |
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| US3042080A (en) * | 1958-07-02 | 1962-07-03 | Conch Int Methane Ltd | Means for moving extremely cold liquids |
| CN101571213B (en) * | 2009-06-04 | 2010-12-01 | 芜湖圣弗兰玻璃钢有限公司 | Preparing method of bamboo fiber winding composite tube |
| CN201651576U (en) * | 2010-02-09 | 2010-11-24 | 芜湖圣弗兰玻璃钢有限公司 | Straight bamboo reinforced bamboo compound tube |
| DE202011103520U1 (en) * | 2011-07-20 | 2011-12-20 | FITR-Gesellschaft für Innovation im Tief- und Rohrleitungsbau Weimar mbH | Wooden tube with at least one additional layer |
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| CN105715882B (en) * | 2016-04-15 | 2019-12-03 | 浙江鑫宙竹基复合材料科技有限公司 | A kind of small-bore bamboo coiled composite tube and its manufacturing method |
| CN205578941U (en) * | 2016-04-15 | 2016-09-14 | 浙江鑫宙竹基复合材料科技有限公司 | Small -bore compound pipe of bamboo winding |
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| CN202327397U (en) * | 2011-11-17 | 2012-07-11 | 新疆广水管道有限公司 | Bamboo composite pressure pipe |
| CN104089105A (en) * | 2014-07-07 | 2014-10-08 | 浙江鑫宙竹基复合材料科技有限公司 | Method for manufacturing bamboo-plastic winding composite pipe |
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| CN105715882A (en) | 2016-06-29 |
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Address after: 311251 No.1, Dongfan Middle Road, Linpu Town, Xiaoshan District, Hangzhou City, Zhejiang Province Co-patentee after: Ye Ling Patentee after: ZHEJIANG XINZHOU BAMBOO-BASED COMPOSITES TECHNOLOGY Co.,Ltd. Address before: Hangzhou City, Zhejiang province 311115 Fengdu Pingyao town Yuhang District village show along the road No. 6 Co-patentee before: Ye Ling Patentee before: ZHEJIANG XINZHOU BAMBOO-BASED COMPOSITES TECHNOLOGY Co.,Ltd. |
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Effective date of registration: 20240529 Address after: 311122 No. 29-16, Jiaqi Road, Xianlin Street, Yuhang District, Hangzhou, Zhejiang Patentee after: Zhonglin Xinzhou Bamboo Winding Development Co.,Ltd. Country or region after: China Address before: 311251 No.1, Dongfan Middle Road, Linpu Town, Xiaoshan District, Hangzhou City, Zhejiang Province Patentee before: ZHEJIANG XINZHOU BAMBOO-BASED COMPOSITES TECHNOLOGY Co.,Ltd. Country or region before: China Patentee before: Ye Ling |