CN205578941U - Small -bore compound pipe of bamboo winding - Google Patents
Small -bore compound pipe of bamboo winding Download PDFInfo
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- CN205578941U CN205578941U CN201620319648.XU CN201620319648U CN205578941U CN 205578941 U CN205578941 U CN 205578941U CN 201620319648 U CN201620319648 U CN 201620319648U CN 205578941 U CN205578941 U CN 205578941U
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Abstract
The utility model belongs to the relevant field of compound tubular product to a small -bore compound pipe of bamboo winding is disclosed, the compound pipe of this bamboo winding includes inner liner, middle enhancement layer and outer inoxidizing coating from inside to outside, wherein the inner liner is made by the fibrofelt or the non -woven fabrics that are stained with anticorrosive resin, middle enhancement layer is in by a list thin bamboo strips used for weaving piece multilayer spiral winding who is stained with the resin with possessing certain dimensions the outer solidification of inner liner forms, and its gross thickness accounts for more than 75% of whole wall thickness, outer inoxidizing coating coating solidification is at the surface of enhancement layer to play effects such as waterproof anticorrosive and radiations protection. Through the utility model discloses, even if be less than the characteristics that still can keep bamboo winding composite pipe overall structure not have the distributing of stress defect well under 200mm's the small -bore specification condition, can showing simultaneously and improve if the crushing resistance, encircle rigidity, fluid transportation energy consumption and use the comprehensive properties of aspect such as stability of quality for a long time.
Description
Technical field
This utility model belongs to composite pipe correlative technology field, small-bore more particularly, to one
Bamboo coiled composite tube.
Background technology
At present in the most multiple industries, equal widespread need uses various types of tubing.Tradition
Tubing is largely divided into metal pipe material (such as seamless steel pipe, nodular cast iron pipe etc.), plastic pipe (as
Pvc pipe, HDPE pipe etc.), the classification such as materials used for cement pipes and glass reinforced plastic pipe (such as RPMP),
Each of which possesses different performance characteristics, also presents different pluses and minuses: such as seamless steel pipe simultaneously
Bearing capacity is high, high temperature resistant, easily processes, but weight is big, perishable, constructional difficulties and service life
Typically；HDPE pipe lightweight, corrosion-resistant, it is simple to processing, but heat resistance and bearing capacity is poor,
Rigidity is little and the most aging；The intensity of RPMP is high, corrosion-resistant, and coefficient of friction is less, but
In the case of heavy caliber, bearing capacity is limited, life-time service is possible separates out glass fibre, is unfavorable for simultaneously
Recycle, etc..
In view of this, the utility model people of the application has been proposed for utilizing bamboo fibre as master in early days
Want reinforcing material, using resin as binding agent, and use canoe to carry out the new bio of machine-shaping
Base tube material.Such as, CN200910099279.2 discloses the preparation of a kind of bamboo fiber winding composite tube
Method, is wherein set to inner liner, enhancement layer and external protection coating, this enhancement layer from inside to outside by tubing
It is to be contained in debatching on wrapping machine by the bamboo fibre sheet of rolling, first passes through resin storage tank and coat such as epoxy resin
Material modified, be then wrapped in last cured formation on the inner liner of straight tube mould.And for example,
CN201120458602.3 discloses a kind of bamboo composite pressure pipe, wherein tubing is arranged from inside to outside
For inner liner, enhancement layer and external protection coating, and the key component of all layers by bamboo fibre and other
Material cladding is made, and is derived from the enhancing pipe material product of full bamboo fibre.The above new bio base
The ultimate principle of tubing is to make full use of the axial tensile strength of bamboo fibre, and is formed in pipeline configuration
Unstressed defect distribution, accordingly compared with conventional all kinds of tubing, not only compressive resistance, rigidity,
The multinomial leading indicator aspects such as weight, anticorrosion and insulating properties all show excellent, and raw material is can
Regenerated resources, the basic three-waste free discharge of production process, possess the characteristic such as low-carbon environment-friendly, energy-saving and emission-reduction.
But, along with bamboo coiled composite tube material is in the popularization of multiple industries and project and actual application, enter
The research of one step shows, for the occasion of pipeline transportation etc, often a large amount of use arrives osculum
Diameter pipes forms pipe network branch line, and in order to meet the stable performance transporting use process over a long time,
Specific requirement is there is also at its aspect such as Key Performance Indicator and process for machining and manufacturing.In other words,
When needing to use the situation of the small-bore bamboo coiled composite tube material of specific standard in the face of some application scenarios
Under, own characteristic based on above-mentioned bio-based tubing makes targeted design to continue to keep
Its exclusive performance characteristics, and carry from ring stiffness, axial tensile strength and antiseep and low fluid
The aspects such as energy consumption are satisfied by processing and manufacturing and the long-term prescription transporting utilization process, are just becoming ability
Territory is needed badly and is solved the technical problem that place.
Utility model content
For above deficiency or the Improvement requirement of prior art, this utility model provides a kind of small-bore
Bamboo coiled composite tube, wherein by the structure of each key component form and set-up mode changed
Enter and redesign, especially to some directly influence this small-bore composite pipe in processing and manufacturing and
Some important feature parameters of the aspects such as dependability are adjusted and improve, and enable to this accordingly
Small-bore bamboo coiled composite tube material keeps the unstressed defect distribution characteristic of self steadily in the long term, because of
And it is particularly suited for the such as application scenario such as oil-gas transportation, municipal drainage blowdown, pipe network branch line.
For achieving the above object, according to this utility model, it is provided that a kind of small-bore bamboo is wound around compound
Pipe, it is characterised in that the diameter of bore of this bamboo coiled composite tube is below 200mm, and from interior to
Include inner liner, middle reinforcement layer and external protection coating successively outward；Wherein, described inner liner possesses antiseepage
And smooth inwall, for the physical contact between media with delivered inside；Described middle reinforcement layer is by adhering to
The thin bamboo strips used for weaving sheet multilamellar uniform winding having resin solidifies outside described inner liner and forms, the specification of this thin bamboo strips used for weaving sheet
It is sized to wide 2mm～10mm, thickness 0.6mm～1.2mm, and in whole winding process
Spiral way is all used to be wound relative to described inner liner；Described external protection coating directly coats solidification
At the outer surface of described middle reinforcement layer, and play the effect of water-tight corrosion-proof and radioprotective.
The technical scheme formed for above-mentioned design of the present utility model, by straight by middle reinforcement layer
Connect the single thin bamboo strips used for weaving sheet of employing to be wound with mixed with resin, so can not only significantly improve working (machining) efficiency
And quality controllability, it is often more important that make thin bamboo strips used for weaving sheet in the helical wrapping process of above-mentioned angular range
Acquisition is fully extended so that it is axial tensile strength plays to maximizing；Additionally, in view of thin bamboo strips used for weaving sheet conduct
The one of the core component of middle reinforcement layer is to its structural strength or even whole small-bore bamboo winding pipe
Ring stiffness plays material impact, by the targeted design to its concrete specification in this utility model,
Should be able to still be able to keep pipeline overall structure well in the case of internal diameter of the pipeline is less than 200mm mutually
The feature of unstressed distribution defect, obtains more preferable balance between required winding thickness and structural strength,
Can ensure that the quality stability in bamboo coiled composite tube road life-time service simultaneously.
As an improvement project of the present utility model, the thin bamboo strips used for weaving sheet of described middle reinforcement layer is wound around the number of plies
It is preferably 2 layers～6 layers, and its winding angle is the most gradually incremented by.Further, described bamboo
The minimum winding angle of thin bamboo strip is preferably set to 20 °, and according to 3 ° every layer～5 ° angle from interior to
It is incremented by successively outward, until increasing to the maximum winding angle of 80 °.By above design, it is possible to by being wound around
Angle being incremented by successively by the advantage such as strong for high for the axial strength of bamboo fibre self and toughness progressively from inside to outside
Uniformly diffuse to the multiple directions of tube wall, and play the effect that stress is complementary to one another, phase in multiple angles
Bending or the phenomenon such as cracking of tube wall should be significantly improved, then guarantee that small-bore bamboo winding pipe exists
Pipe stiffness under the conditions of life-time service and anti-intrinsic pressure performance.
As another improvement project of the present utility model, the shape of cross section of above-mentioned thin bamboo strips used for weaving sheet is preferably added
Work is rectangle, and moisture content is 8%～15%, and the overlap joint registration between adjacent thin bamboo strips used for weaving sheet is in length side
Upwards less than 2mm.By above design, the thin bamboo strips used for weaving sheet of rectangle not only facilitates and overlaps at end face,
The most within it also can obtain to press close to the most each other on lateral surface, make accordingly to strengthen in centre
Layer all can fully obtain the high axial tensile strength characteristic of bamboo fibre in all directions；Additionally, thin bamboo strips used for weaving sheet
Also the filling process of resin Composition can be played large effect with water content and overlap joint registration, above-mentioned
Specific standard enables to resin and is easier to penetrate in each layer thin bamboo strips used for weaving sheet and is fully combined with it, Jin Eryou
Help improve the performances such as the structural strength of middle reinforcement layer and impact resistance.
As another improvement project of the present utility model, except thin bamboo strips used for weaving sheet and tree in above-mentioned middle reinforcement layer
Outside fat, may further be enriched with bio-based filler and firming agent, wherein said resin, bio-based filler
With the mass fraction between this three of firming agent is set to 100:10～15:2～5, and together mix
Rear sprinkling adheres on described thin bamboo strips used for weaving sheet.Further, described resin selected from polyurethane resin,
One in phenolic resin, Lauxite or epoxy resin；Described bio-based filler selected from bamboo and wood,
Fiber crops, straw, plant shell or other rigid bio materials, and its average mesh number is set as 20～80.
By above design, comprise bio-based filler, the resin compound of firming agent can promote with each layer that
Filling between this adjacent thin bamboo strips used for weaving sheet and combination, and above-mentioned particular type and the bio-based of granularity
Possess good affinity between filler and bamboo fibre, and then composite strengthening layer can be improved further
Structural strength.
As another improvement project of the present utility model, for above-mentioned inner liner, its thickness is at least
For 0.5mm～1.5mm, and include the first inner liner and the second inner liner the most from inside to outside, wherein should
The thickness of the first inner liner is less than this second inner liner, and the resin adhesive capacity quilt of this first inner liner
It is set greater than this second inner liner.Additionally, in above-mentioned inner liner fiber felt or non-woven fabrics preferred
For bamboo fiber felt or bamboo fibre non-woven fabrics, and a diameter of 0.6mm～1mm of this bamboo fibre；More enter one
Step ground, described first inner liner preferably employs 80g/m2～120g/m2, and the impregnation rate of adhesive be more than
The bamboo fiber felt of 90% or bamboo fibre non-woven fabrics, described second inner liner preferably employs 180g/m2~
250g/m2, and adhesive impregnation rate more than 75% bamboo fiber felt or bamboo fibre non-woven fabrics.By with
On relate to inner liner composition structure and the targeted design of important parameter, it is possible to make this inner liner little
It also is able to keep good anti-intrinsic pressure and barrier properties under the conditions of the specification of caliber, promotes and middle reinforcement layer
Between abundant combination, additionally aid reduction frictional force simultaneously, and fluid transportation energy consumption had
Effect reduces.
As another improvement project of the present utility model, the gross thickness of above-mentioned middle reinforcement layer is set to
Account for the 85%～90% of overall tube wall thickness.In this manner it is possible to give full play to middle reinforcement layer to whole
Small-bore bamboo winding pipe the played central role of pressure-bearing aspect, and be easy to the processing between each composition layer
Quality control plays directive function.
As another improvement project of the present utility model, the Concretio silicea Bambusae seu schizostachyi of above-mentioned thin bamboo strips used for weaving sheet is removed thickness and is set
For 0.2mm～0.4mm, bamboo green grass or young crops is removed thickness and is set to 0.1mm～0.3mm.By above design,
Can farthest avoid destruction fascicular to bamboo fibre, and be processed the thin bamboo strips used for weaving sheet prepared and exist
Can be combined with resin penetration during winding, the beneficially stable and uniformity of resin is filled the most affinely,
And synchronization solidification can be better achieved in subsequent curing process, thus increase in the middle of improving further
The structural strength of strong layer.
In general, by the contemplated above technical scheme of this utility model compared with prior art,
Mainly possess following technological merit:
1, this utility model first to the middle reinforcement layer as tubing primary clustering in its concrete structure group
The many aspects such as one-tenth and key parameter combination are all studied and improve, wherein single by directly using
Thin bamboo strips used for weaving sheet uses spiral way to be wound from start to finish, can not only significantly improve working (machining) efficiency and matter
Amount controllability, is fully extended so that thin bamboo strips used for weaving sheet obtains in winding process so that it is axial tension
Intensity plays to maximizing；Additionally, by the improvement of the concrete dimensions to thin bamboo strips used for weaving sheet, and coordinate
In the design of the change of winding angle from inside to outside, should be able to rise in the multiple directions of small-bore tube wall mutually
The function being complementary to one another to stress, and then in the case of without being wrapped over many numbers of plies, it is also possible to guarantee
Small-bore bamboo winding pipe structural strength under life-time service environment and stability；
2, inner liner is designed as multiple structure by this utility model, simultaneously to the specification of each layer,
The aspects such as component material have made targeted design respectively, in this manner it is possible to smooth at inner liner
The many-sides such as degree, corrosion resistance and resistance to stress intensity obtain preferable balance, so i.e. box lunch, and this is little
In the case of bore bamboo wrapped tube is used for carrying solid-liquid compounding substances or mortar etc medium, also
Do not easily cause that fluid transportation energy consumption is excessive or the phenomenon of breakage inside lining layer, and contribute to and middle reinforcement layer
Between the intensity that be combined with each other；
3, small-bore its processing technique of bamboo coiled composite tube of the present utility model is the most at normal temperatures and pressures
Carry out, it is simple to quality control and production process three-waste free discharge, possess low-carbon environment-friendly, energy-saving and emission-reduction etc.
Characteristic, obtained bamboo coiled composite tube still is able under the diameter of bore specification of below 200mm for a long time
Stably keep the unstressed defect distribution characteristic of self, thus alternative all kinds of conventional tubing especially
It is applicable to the application scenarios such as oil-gas transportation, municipal drainage blowdown, pipe network branch line.
Accompanying drawing explanation
Fig. 1 is according to the small-bore bamboo coiled composite tube designed by this utility model preferred implementation
Basic structure sectional view；
Fig. 2 is for the process method flow chart of small-bore bamboo coiled composite tube according to this utility model；
In all of the figs, identical reference is used for representing identical element or structure, wherein:
1-inner liner 2-middle reinforcement layer 3-external protection coating
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with
Drawings and Examples, are further elaborated to this utility model.Should be appreciated that this place is retouched
The specific embodiment stated, only in order to explain this utility model, is not used to limit this utility model.This
Outward, if technical characteristic involved in each embodiment of this utility model disclosed below that
The conflict of not constituting between this just can be mutually combined.
Fig. 1 is according to the small-bore bamboo coiled composite tube designed by this utility model preferred implementation
Basic structure sectional view.As shown in fig. 1, the diameter of bore of this bamboo coiled composite tube is 200mm
Hereinafter, more preferably 80mm～160mm, and mainly include inner liner 1, centre
The assemblies such as enhancement layer 2 and external protection coating 3, illustrate one by one to it separately below.
Inner liner 1 is made up of the fiber felt or non-woven fabrics being stained with anti-corrosion resin, and forms antiseepage and light
Sliding inwall, its major function is to contact with all kinds of media to be conveyed, and not by medium corruption
Erosion and on the premise of necessary internal pressure strength is provided, it is ensured that this layer can low-frictional force and low stream as far as possible
Carry out conveying medium body conveying energy consumption.
In this utility model, in view of the use demand of small-bore bamboo coiled composite tube, preferably by interior
Lining is designed as the structure of 2 layers or more layers, and specifically, this inner liner includes from inside to outside
One inner liner and the second inner liner, and the thickness of the first inner liner is designed as less than the second inner liner
Thickness, be designed as gluing more than the resin of the second inner liner by the resin adhesive capacity of the first inner liner simultaneously
Attached amount.In this way, the first inner liner being in inside can be processed to form the most smooth interior table
Face, frictional force during reduction pumped (conveying) medium and energy consumption, the second inner liner being in opposite exterior lateral sides is the most right
The resistance to stress intensity of whole inner liner and and middle reinforcement layer 2 between combination play prior work
With, particularly avoid under small-bore conveying occasion medium to inner liner and the corrosion of whole tubing or punching
Hit damage.Additionally, this inner liner can also use bamboo fibre to be processed to form fiber felt or non-woven fabrics,
And through more contrast test, may be selected to be a diameter of 0.6mm～1mm of bamboo fibre；More specifically
Ground, described first inner liner preferably employs 80g/m2～120g/m2, and the impregnation rate of adhesive more than 90%
Bamboo fiber felt or bamboo fibre non-woven fabrics, described second inner liner preferably employs 180g/m2～250g/m2、
And the impregnation rate of adhesive is more than bamboo fiber felt or the bamboo fibre non-woven fabrics of 75%.For whole inner liner
For thickness, it preferably comprises the 8%～about 10% of overall tube wall thickness.
As another key component of the present utility model, the middle reinforcement layer 2 bamboo to whole super large caliber
Pipe stiffness and the anti-intrinsic pressure performance of coiled composite tube material play core impact.Correspondingly, at whole pipe
The bore of material is well beyond under the Developed Background of common tubing specification, it is necessary to exist middle reinforcement layer 2
The aspect emphasis such as its concrete structure composition and key parameter combination are studied and are improved.
Specifically, in this utility model, this middle reinforcement layer 2 is by the single bamboo being stained with resin
Thin bamboo strip multilamellar uniform winding solidifies outside described inner liner and forms, and its gross thickness accounts for integral tube wall thickness
More than 75%, more preferably account for the 85%～90% of overall tube wall thickness；Additionally, described thin bamboo strips used for weaving sheet
Specification is set to wide 4mm～8mm, thickness 0.6mm～1.2mm, and length there is no particular restriction,
And all use spiral way to be wound relative to described inner liner in whole winding process.According to
A preferred embodiment of the present utility model, the thin bamboo strips used for weaving sheet of described middle reinforcement layer is wound around the number of plies and is preferably 2
Layer～6 layers, and its winding angle is the most gradually incremented by.Further, its minimum winding angle is excellent
Choosing is set to 20 °, and is incremented by the most successively according to the angle of 3 ° every layer～5 °, until increasing
To the maximum winding angle of 80 °.
By designing above in relation to property, by middle reinforcement layer directly being used single thin bamboo strips used for weaving sheet and resin
Mixing is wound, and so can not only significantly improve working (machining) efficiency and quality controllability, prior
It is that the thin bamboo strips used for weaving sheet of above-mentioned specific dimensions specification can obtain in whole helical wrapping process and be fully extended,
Its axial tensile strength is made to play to maximizing；Additionally, due to use spiral way to be wound around from start to finish
And winding angle the most gradually can be incremented by, accordingly can axially strong by bamboo fibre self
The advantages such as degree is high and toughness is strong the most uniformly diffuse to the multiple directions of tube wall, and play in multiple angles
The effect that stress is complementary to one another, can significantly improve bending or the phenomenon such as cracking of tube wall accordingly, continue
And guarantee small-bore bamboo winding pipe also can keep well under the conditions of life-time service pipeline overall structure without
The feature of stress distribution defect, improves bamboo coiled composite tube road in crushing resistance, ring stiffness etc. property simultaneously
Can, especially can ensure the reliability of performance steadily in the long term.
According to another preferred embodiment of the present utility model, except resin and bamboo in above-mentioned composite strengthening layer
Outside these solvents of thin bamboo strip, further preferably can be added with bio-based filler and firming agent, wherein
Through reality test, the mass fraction quilt between described resin, bio-based filler and this three of firming agent
It is set as 100:15～25:2～5, and together sprinkling adheres on described thin bamboo strips used for weaving curtain after mixing.More
Body ground, described resin is selected from polyurethane resin, phenolic resin, Lauxite or epoxy resin
One；Described bio-based filler is raw selected from bamboo and wood, fiber crops, straw, plant shell or other hard
Thing material, and its average mesh number is set as 20～80.By above design, comprise bio-based filler,
Filling between the thin bamboo strips used for weaving sheet that the resin compound of firming agent can promote and each layer is adjacent one another are and knot
Close, and between bio-based filler and the bamboo fibre of above-mentioned particular type and granularity, possess good parent
And property, and then the overall construction intensity of middle reinforcement layer and anti-intrinsic pressure performance can be improved further, and
And help speed up the shaping efficiency during middle reinforcement layer winding process operation and quality controllability.
According to another preferred embodiment of the present utility model, between above-mentioned inner liner and middle reinforcement layer,
Can also additionally arrange boundary layer, this boundary layer may select suitable macromolecule modified resin and makes, and
For improving the bond strength between inner liner and middle reinforcement layer further.
Finally, external protection coating 3 can directly coat the outer surface being solidificated in middle reinforcement layer 2, and mainly
Play the effect such as water-tight corrosion-proof and radioprotective.Specifically, this external protection coating can also spray is 2 layers
Or more than 2 layers, such as can use the materials such as epoxy resin, unsaturated polyester resin or Colophonium, and
Adding radioprotective filler, its thickness is more preferably at least 3mm, in order to be preferably wound around small-bore bamboo compound
Tubing plays protective action under all kinds of severe use environment.
More clearly illustrate according to of the present utility model below in conjunction with some specific embodiments
Bamboo coiled composite tube manufacturing process and key process parameter design thereof.
Embodiment 1
Former bamboo is cutd open along its length into multistage, and by blue or green for the bamboo of each section of outer surface and the bamboo of inner surface
Huang is removed respectively, and wherein Concretio silicea Bambusae seu schizostachyi removal thickness is set to 0.2mm, and bamboo green grass or young crops is removed thickness and is set
For 0.3mm, corresponding prepare cross section be rectangle and a width of 4mm, thickness be that 1mm, length are such as
Multiple thin bamboo strips used for weaving sheets of more than 2500mm, then standby through defat, cleaning and processed to it.
It is one layer of mould release film of parcel on the polished glass fiber reinforced plastic straight pipe mould of 200mm at external diameter, so
Afterwards with being stained with the bamboo fibre non-woven fabrics of anti-corrosion resin, pipe mold makes successively thickness be 0.5mm,
Density is 80g/m2And the first inner liner and the thickness that impregnation rate is 92% be 1mm, density be 200g/m2
And the second inner liner that impregnation rate is 78%, wherein resin may select epoxy resin, be consequently formed antiseepage and
Smooth inwall.
After inner liner solidifies, above-mentioned thin bamboo strips used for weaving sheet is contained in debatching on wrapping machine, a plurality of passes through resin storage tank
And apply upper resin, then use spiral way to divide 5 layers of uniform winding from start to finish relative to inner liner
On it, winding angle is set as 65 degree, and the overlap joint registration of thin bamboo strips used for weaving sheet adjacent one another are is in the longitudinal direction
For 2mm, until thickness accounts for the middle reinforcement layer of about the 85% of integral tube wall thickness after completing solidification.
After all winding operations, middle reinforcement layer is solidify to form into pipe, then at the demoulding
Reason obtains bamboo coiled composite tube.Finally, in the unsaturation of one layer of water-tight corrosion-proof function of tubing external spray
Polyester resin, thickness about 1.5mm, final processing prepares the bamboo coiled composite tube product that bore is 200mm.
Embodiment 2
Former bamboo is cutd open along its length into multistage, and by blue or green for the bamboo of each section of outer surface and the bamboo of inner surface
Huang is removed respectively, and wherein Concretio silicea Bambusae seu schizostachyi removal thickness is set to 0.4mm, and bamboo green grass or young crops is removed thickness and is set
For 0.25mm, corresponding prepare cross section be rectangle and a width of 6mm, thickness be that 0.6mm, length are such as
Multiple thin bamboo strips used for weaving sheets of more than 2500mm, then standby through defat, cleaning and processed to it.
It is one layer of mould release film of parcel on the polished glass fiber reinforced plastic straight pipe mould of 160mm at external diameter, so
Afterwards with being stained with the bamboo fibre non-woven fabrics of anti-corrosion resin, pipe mold makes successively thickness be 0.2mm,
Density is 100g/m2And the first inner liner and the thickness that impregnation rate is 95% be 0.3mm, density be
250g/m2And the second inner liner that impregnation rate is 78%, wherein resin may select phenolic resin, thus shape
Become antiseepage and smooth inwall.
After inner liner solidifies, above-mentioned thin bamboo strips used for weaving sheet is contained in debatching on wrapping machine, a plurality of passes through resin storage tank
And apply upper resin, then use spiral way to divide 5 layers of uniform winding from start to finish relative to inner liner
On it, initial wrap angle is set as 20 degree, and winding angle according to 5 ° every layer angle from inside to outside
Being incremented by successively, the overlap joint registration of thin bamboo strips used for weaving sheet adjacent one another are is 1.5mm in the longitudinal direction, until complete
After becoming solidification, thickness accounts for the middle reinforcement layer of about the 90% of integral tube wall thickness.
After all winding operations, middle reinforcement layer is solidify to form into pipe, then at the demoulding
Reason obtains bamboo coiled composite tube.Finally, in the unsaturation of one layer of water-tight corrosion-proof function of tubing external spray
Polyester resin, thickness about 1.5mm, final processing prepares the bamboo coiled composite tube product that bore is 160mm.
Embodiment 3
Former bamboo is cutd open along its length into multistage, and by blue or green for the bamboo of each section of outer surface and the bamboo of inner surface
Huang is removed respectively, and wherein Concretio silicea Bambusae seu schizostachyi removal thickness is set to 0.4mm, and bamboo green grass or young crops is removed thickness and is set
For 0.1mm, corresponding prepare cross section be rectangle and a width of 4mm, thickness be that 1mm, length are such as
Multiple thin bamboo strips used for weaving sheets of more than 2500mm, then standby through defat, cleaning and processed to it.
It is one layer of mould release film of parcel on the polished glass fiber reinforced plastic straight pipe mould of 160mm at external diameter, so
Afterwards with being stained with the bamboo fibre non-woven fabrics of anti-corrosion resin, pipe mold makes successively thickness be 0.5mm,
Density is 100g/m2And the first inner liner and the thickness that impregnation rate is 95% be 1mm, density be 250g/m2
And the second inner liner that impregnation rate is 78%, wherein resin may select phenolic resin, be consequently formed antiseepage and
Smooth inwall.
After inner liner solidifies, above-mentioned thin bamboo strips used for weaving sheet is contained in debatching on wrapping machine, a plurality of passes through resin storage tank
And apply upper resin, then use spiral way to divide 5 layers of uniform winding from start to finish relative to inner liner
On it, initial wrap angle is set as 30 degree, and winding angle according to 3 ° every layer angle from inside to outside
Being incremented by successively, the overlap joint registration of thin bamboo strips used for weaving sheet adjacent one another are is 1.2mm in the longitudinal direction, until complete
After becoming solidification, thickness accounts for the middle reinforcement layer of about the 87% of integral tube wall thickness.In the process, resin choosing
Be selected as Lauxite and be added with the stalk powder and a small amount of firming agent that average mesh number is 20, wherein resin,
Parts by weight between stalk powder and firming agent three are 100:15:5.
After all winding operations, middle reinforcement layer is solidify to form into pipe, then at the demoulding
Reason obtains bamboo coiled composite tube.Finally, in the unsaturation of one layer of water-tight corrosion-proof function of tubing external spray
Polyester resin, thickness about 1.5mm, final processing prepares the bamboo coiled composite tube product that bore is 160mm.
Embodiment 4
Former bamboo is cutd open along its length into multistage, and by blue or green for the bamboo of each section of outer surface and the bamboo of inner surface
Huang is removed respectively, and wherein Concretio silicea Bambusae seu schizostachyi removal thickness is set to 0.35mm, and bamboo green grass or young crops is removed thickness and set
Be set to 0.2mm, corresponding prepare cross section be rectangle and a width of 10mm, thickness be 1mm, a length of 2500mm
Above multiple thin bamboo strips used for weaving sheets, then standby through defat, cleaning and processed to it.
It is one layer of mould release film of parcel on the polished glass fiber reinforced plastic straight pipe mould of 180mm at external diameter, so
Afterwards with being stained with the bamboo fibre non-woven fabrics of anti-corrosion resin, pipe mold makes successively thickness be 0.35mm,
Density is 80g/m2And the first inner liner and the thickness that impregnation rate is 92% be 0.65mm, density be
180g/m2And the second inner liner that impregnation rate is 80%, wherein resin may select epoxy resin, thus shape
Become antiseepage and smooth inwall.
After inner liner solidifies, above-mentioned thin bamboo strips used for weaving sheet is contained in debatching on wrapping machine, a plurality of passes through resin storage tank
And apply upper resin, then use spiral way to divide 4 layers of uniform winding from start to finish relative to inner liner
On it, initial wrap angle is set as 35 degree, and winding angle according to 5 ° every layer angle from inside to outside
Being incremented by successively, the overlap joint registration of thin bamboo strips used for weaving sheet adjacent one another are is 1mm in the longitudinal direction, until completing
After solidification, thickness accounts for the middle reinforcement layer of about the 90% of integral tube wall thickness.In the process, Choice of Resin
For epoxy resin and be added with the bamboo powder and a small amount of firming agent that average mesh number is 80, wherein resin, bamboo powder
With the parts by weight between firming agent three are 100:15:3.
After all winding operations, middle reinforcement layer is solidify to form into pipe, then at the demoulding
Reason obtains bamboo coiled composite tube.Finally, in the unsaturation of one layer of water-tight corrosion-proof function of tubing external spray
Polyester resin, thickness about 1.5mm, final processing prepares the bamboo coiled composite tube product that bore is 180mm.
Embodiment 5
Former bamboo is cutd open along its length into multistage, and by blue or green for the bamboo of each section of outer surface and the bamboo of inner surface
Huang is removed respectively, and wherein Concretio silicea Bambusae seu schizostachyi removal thickness is set to 0.2mm, and bamboo green grass or young crops is removed thickness and is set
For 0.2mm, corresponding prepare cross section be rectangle and a width of 2mm, thickness be 1mm, a length of 2500mm
Above multiple thin bamboo strips used for weaving sheets, then standby through defat, cleaning and processed to it.
It is one layer of mould release film of parcel on the polished glass fiber reinforced plastic straight pipe mould of 80mm at external diameter, then
With being stained with the bamboo fibre non-woven fabrics of anti-corrosion resin, making thickness on pipe mold successively is 0.5mm, close
Degree is 80g/m2And the first inner liner and the thickness that impregnation rate is 92% be 1mm, density be 180g/m2And
Impregnation rate is second inner liner of 80%, and wherein resin may select epoxy resin, is consequently formed antiseepage and light
Sliding inwall.
After inner liner solidifies, above-mentioned thin bamboo strips used for weaving sheet is contained in debatching on wrapping machine, a plurality of passes through resin storage tank
And apply upper resin, then use spiral way to divide 3 layers of uniform winding from start to finish relative to inner liner
On it, initial wrap angle is set as 45 degree, and winding angle according to 3 ° every layer angle from inside to outside
Being incremented by successively, the overlap joint registration of thin bamboo strips used for weaving sheet adjacent one another are is 1.5mm in the longitudinal direction, until complete
After becoming solidification, thickness accounts for the middle reinforcement layer of about the 86% of integral tube wall thickness.In the process, resin choosing
Be selected as epoxy resin and be added with the stalk powder and a small amount of firming agent that average mesh number is 60, wherein resin,
Parts by weight between stalk powder powder and firming agent three are 100:12:5.
After all winding operations, middle reinforcement layer is solidify to form into pipe, then at the demoulding
Reason obtains bamboo coiled composite tube.Finally, in the unsaturation of one layer of water-tight corrosion-proof function of tubing external spray
Polyester resin, thickness about 1mm, final processing prepares the bamboo coiled composite tube product that bore is 80mm.
Embodiment 6
Former bamboo is cutd open along its length into multistage, and by blue or green for the bamboo of each section of outer surface and the bamboo of inner surface
Huang is removed respectively, and wherein Concretio silicea Bambusae seu schizostachyi removal thickness is set to 0.4mm, and bamboo green grass or young crops is removed thickness and is set
For 0.2mm, corresponding prepare cross section be rectangle and a width of 4mm, thickness be 1.2mm, a length of 2500mm
Above multiple thin bamboo strips used for weaving sheets, then standby through defat, cleaning and processed to it.
It is one layer of mould release film of parcel on the polished glass fiber reinforced plastic straight pipe mould of 180mm at external diameter, so
Afterwards with being stained with the bamboo fibre non-woven fabrics of anti-corrosion resin, pipe mold makes successively thickness be 0.6mm,
Density is 80g/m2And the first inner liner and the thickness that impregnation rate is 92% be 0.8mm, density be 180g/m2
And the second inner liner that impregnation rate is 80%, wherein resin may select epoxy resin, be consequently formed antiseepage and
Smooth inwall.
After inner liner solidifies, above-mentioned thin bamboo strips used for weaving sheet is contained in debatching on wrapping machine, a plurality of passes through resin storage tank
And apply upper resin, then use spiral way to divide 4 layers of uniform winding from start to finish relative to inner liner
On it, initial wrap angle is set as 30 degree, and winding angle according to 4 ° every layer angle from inside to outside
Being incremented by successively, the overlap joint registration of thin bamboo strips used for weaving sheet adjacent one another are is 1.8mm in the longitudinal direction, until complete
After becoming solidification, thickness accounts for the middle reinforcement layer of about the 75% of integral tube wall thickness.In the process, resin choosing
Parts by weight between coconut husk powder and firming agent three are 100:15:2.
As it will be easily appreciated by one skilled in the art that and the foregoing is only preferred embodiment of the present utility model
, not in order to limit this utility model, all made within spirit of the present utility model and principle
Any amendment, equivalent and improvement etc., within should be included in protection domain of the present utility model.
Claims (8)
1. a small-bore bamboo coiled composite tube, it is characterised in that the endoporus of this bamboo coiled composite tube
A diameter of below 200mm, and include inner liner, middle reinforcement layer and outer protection the most successively
Layer；Wherein, described inner liner possesses antiseepage and smooth inwall, for straight with the medium of delivered inside
Contact；Described middle reinforcement layer is by being stained with the thin bamboo strips used for weaving sheet multilamellar uniform winding of resin at described liner
The outer solidification of layer forms, the specification of this thin bamboo strips used for weaving sheet be set to wide 2mm～10mm, thickness 0.6mm～
1.2mm, and all use spiral way to twine relative to described inner liner in whole winding process
Around；Described external protection coating directly coats the outer surface being solidificated in described middle reinforcement layer, and plays waterproof
Anticorrosion and the effect of radioprotective.
A kind of small-bore bamboo coiled composite tube the most as claimed in claim 1, it is characterised in that institute
The thin bamboo strips used for weaving sheet winding number of plies stating middle reinforcement layer is 2 layers～6 layers, and its winding angle is the most gradually
It is incremented by.
A kind of small-bore bamboo coiled composite tube the most as claimed in claim 2, it is characterised in that institute
The minimum winding angle stating thin bamboo strips used for weaving sheet is set to 20 °, and according to 3 ° every layer～5 ° angle from interior to
It is incremented by successively outward, until increasing to the maximum winding angle of 80 °.
A kind of small-bore bamboo coiled composite tube the most as claimed in claim 1 or 2, it is characterised in that
The shape of cross section of above-mentioned thin bamboo strips used for weaving sheet is rectangle, and moisture content is 8%～15%, and between adjacent thin bamboo strips used for weaving sheet
Overlap joint registration in the longitudinal direction less than 2mm.
A kind of small-bore bamboo coiled composite tube the most as claimed in claim 1 or 2, it is characterised in that
For above-mentioned inner liner, its thickness is 0.5mm～1.5mm, and includes the first liner from inside to outside
Layer and the second inner liner, wherein the thickness of this first inner liner is less than this second inner liner, and this
The resin adhesive capacity of one inner liner is set to be greater than this second inner liner.
A kind of small-bore bamboo coiled composite tube the most as claimed in claim 5, it is characterised in that institute
The gross thickness stating middle middle reinforcement layer is set to account for the 85%～90% of overall tube wall thickness.
A kind of small-bore bamboo coiled composite tube the most as claimed in claim 6, it is characterised in that institute
State the first inner liner and use 80g/m2～120g/m2, and adhesive impregnation rate more than 90% bamboo fibre
Felt or bamboo fibre non-woven fabrics, described second inner liner uses 180g/m2～250g/m2, and the leaching of adhesive
Bamboo fiber felt or the bamboo fibre non-woven fabrics that glue rate is more than 75%.
A kind of small-bore bamboo coiled composite tube the most as claimed in claim 7, it is characterised in that on
The Concretio silicea Bambusae seu schizostachyi removal thickness stating thin bamboo strips used for weaving sheet is set to 0.2mm～0.4mm, and bamboo green grass or young crops is removed thickness and is set to
0.1mm～0.3mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620319648.XU CN205578941U (en) | 2016-04-15 | 2016-04-15 | Small -bore compound pipe of bamboo winding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620319648.XU CN205578941U (en) | 2016-04-15 | 2016-04-15 | Small -bore compound pipe of bamboo winding |
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| CN205578941U true CN205578941U (en) | 2016-09-14 |
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ID=56861978
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017177709A1 (en) * | 2016-04-15 | 2017-10-19 | 浙江鑫宙竹基复合材料科技有限公司 | Small-diameter bamboo-wound composite tube and manufacturing method thereof |
| CN107511899A (en) * | 2017-08-16 | 2017-12-26 | 中国葛洲坝集团电力有限责任公司 | A kind of arbitrarily long restructuring bamboo profile and its manufacture method |
| WO2018076490A1 (en) * | 2016-10-31 | 2018-05-03 | 浙江鑫宙竹基复合材料科技有限公司 | Straight pipe for comprehensive bamboo composite pipe gallery, and pipe gallery comprising same |
| CN114012855A (en) * | 2021-11-08 | 2022-02-08 | 陈宗指 | Ecological environment-friendly bamboo straw and manufacturing method thereof |
-
2016
- 2016-04-15 CN CN201620319648.XU patent/CN205578941U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017177709A1 (en) * | 2016-04-15 | 2017-10-19 | 浙江鑫宙竹基复合材料科技有限公司 | Small-diameter bamboo-wound composite tube and manufacturing method thereof |
| WO2018076490A1 (en) * | 2016-10-31 | 2018-05-03 | 浙江鑫宙竹基复合材料科技有限公司 | Straight pipe for comprehensive bamboo composite pipe gallery, and pipe gallery comprising same |
| CN107511899A (en) * | 2017-08-16 | 2017-12-26 | 中国葛洲坝集团电力有限责任公司 | A kind of arbitrarily long restructuring bamboo profile and its manufacture method |
| CN114012855A (en) * | 2021-11-08 | 2022-02-08 | 陈宗指 | Ecological environment-friendly bamboo straw and manufacturing method thereof |
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Legal Events
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230210 Address after: 311122 No. 29-16, Jiaqi Road, Xianlin Street, Yuhang District, Hangzhou, Zhejiang Patentee after: Zhonglin Xinzhou Bamboo Winding Development Co.,Ltd. Address before: 311115 No. 6 Xiuyan Road, Fengdu Village, Pingyao Town, Yuhang District, Hangzhou City, Zhejiang Province Patentee before: ZHEJIANG XINZHOU BAMBOO-BASED COMPOSITES TECHNOLOGY Co.,Ltd. Patentee before: Ye Ling |