CN105128323A - Composite reinforced winding-type pressure pipe and forming method thereof - Google Patents
Composite reinforced winding-type pressure pipe and forming method thereof Download PDFInfo
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- CN105128323A CN105128323A CN201510452180.1A CN201510452180A CN105128323A CN 105128323 A CN105128323 A CN 105128323A CN 201510452180 A CN201510452180 A CN 201510452180A CN 105128323 A CN105128323 A CN 105128323A
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Abstract
The invention relates to the technical field of plastic pressure pipes, in particular to a composite reinforced winding-type pressure pipe. The composite reinforced winding-type pressure pipe comprises an outer plastic layer, an inner plastic layer and a long glass fiber sheet reinforced plastic layer arranged between the outer plastic layer and the inner plastic layer. The long glass fiber sheet reinforced plastic layer comprises a long glass fiber sheet and a plastic composite layer wrapping the long glass fiber sheet, and the long glass fiber sheet is wound on the outer surface of the inner plastic layer through the wrapping plastic composite layer to form the long glass fiber sheet reinforced plastic layer; the long glass fiber sheet is composed of regularly-distributed long glass fibers, and the long glass fibers are flaky. The invention further discloses a forming method of the composite reinforced winding-type pressure pipe. Through the composite reinforced winding-type pressure pipe and the forming method of the composite reinforced winding-type pressure pipe, the process that the long glass fiber sheet is wrapped by the plastic composite layer and then wound on the outer surface of the inner plastic layer is simple, the production cost is low, and the yield is high. The pressure resistance is high, and the process stability is good. In addition, the long glass fibers are regularly distributed, so that the strength of the formed pressure pipe is uniform.
Description
Technical field
The present invention relates to plastic pressure pipe technical field, particularly relate to a kind of composite strengthening wound form force pipe and forming method thereof.
Background technology
Because major diameter plastic pressure pipe has better sanitation performance and anti-seismic performance relative to traditional pressure pipeline, compare traditional major diameter force pipe (such as PCCP pipe or ductile iron pipe etc.) combination property better, therefore manufacturing the major diameter plastic pressure pipe meeting application requirement is the problem that those skilled in the art are devoted to solve.
At present, adopt winding fusion molding technology to manufacture major diameter plastic tube with no pressure and popularized, and by facts have proved that it is reliable for being applied to the non pressure pipe fields such as buried drain pipe according to the winding welding structure wall pipe of relevant criterion manufacture.In addition, a small amount of large-bore plastics force pipe being wound around the manufacture of fusion molding technology that adopts comes into the market in the world.
Such as, German KRAH company releases large-bore plastics force pipe production technology and eqUipment in October, 2004 in the international rubber and plastic exhibition of Dusseldorf ,Germany.By the winding fusion molding technology of similar " carat pipe ", product is arranged to three-decker.Wherein, ectonexine is formed by the PE100 material of standard, but intermediate layer is strengthened by short glass fiber enhanced polyethylene PE-GF, this kind of pipe KPPS pipe by name, diameter range is between 1000mm-4000mm, and operating pressure, at 1.2Mpa, is defeated by application prospect in water or Gas transmission project at mesolow good.
But, utilize short glass fiber enhanced polyethylene PE-GF to strengthen and there is following defect:
The first, technique is comparatively complicated and the force pipe intensity of producing is unstable.Such as, when adopting the mixing plasticizing short glass fiber of double screw extruder and PE material, short glass fiber is easy to be cut off, and enhancing effect is reduced; In addition short glass fiber be difficult to ensure be dispersed in PE completely uniformly, and then cause shaping after force pipe intensity heterogeneity.
The second, this technique needs to use twin screw device, equipment purchasing and use cost high.
Therefore, simple process is adopted to manufacture high strength and the stable plastic pressure pipe of uniform intensity becomes the task of top priority.
Summary of the invention
In view of this, the technical problem to be solved in the present invention is to provide a kind of composite strengthening wound form force pipe, heterogeneity lower with the intensity solving existing plastics enhancing force pipe, and complex forming technology, unstable problem.
It is as follows that the present invention solves the problems of the technologies described above adopted technical scheme:
According to an aspect of the present invention, a kind of composite strengthening wound form force pipe provided, is characterized in that, comprising:
Plastic outer layer, inner plastic and the roving glass fiber sheet material reinforced plastic layer be arranged between described plastic outer layer and described inner plastic;
Described roving glass fiber sheet material reinforced plastic layer comprises the plastics composite bed of roving glass fiber sheet material and coated described roving glass fiber sheet material, and the outer surface that described roving glass fiber sheet material is wrapped in described inner plastic by coated plastics composite bed forms described roving glass fiber sheet material reinforced plastic layer;
The long glass fibres that described roving glass fiber sheet material is arranged by rule is formed, and described long glass fibres forms sheet structure.
Preferably, described long glass fibres is arranged along the length bearing of trend arrangement of described roving glass fiber sheet material and/or the width bearing of trend along described roving glass fiber sheet material.
Preferably, described roving glass fiber sheet material reinforced plastic layer has some winding layers, and the described winding layer be connected with described inner plastic is wrapped in the outer surface of described inner plastic, and the winding angle between adjacent described winding layer interlocks.
Preferably, described plastics composite bed comprises the first plastics composite bed of coated described roving glass fiber sheet material and the second plastics composite bed of coated described first plastics composite bed.
Preferably, described inner plastic is made up of interior plastic sheet, the outer face that described interior plastic sheet is wrapped in Wound Dies forms described inner plastic, described plastic outer layer is made up of outer plastic sheet, and the outer surface that described outer plastic sheet is wrapped in described roving glass fiber sheet material reinforced plastic layer forms described plastic outer layer.
According to another aspect of the present invention, the forming method of a kind of composite strengthening wound form force pipe provided, comprising:
Extrude after plastic extruder heating of plastic to molten condition and enter the first mould molding die cavity and form the first sheet material, described first sheet material is coated on pipe mold and forms inner plastic;
Extrude after single screw extrusion machine heating of plastic to molten condition and enter composite die, roving glass fiber sheet material is flattened by nip rolls simultaneously, then the described roving glass fiber sheet material flattened heats through baking oven, described roving glass fiber sheet material after heating enters described composite die, and the plastics that described roving glass fiber sheet material is extruded by described single screw extrusion machine are evenly coated;
To the outer surface being coated in described inner plastic be wound around by the described roving glass fiber sheet material of described plastic overmold and form roving glass fiber sheet material reinforced plastic layer;
Plastic extruder is again extruded and is entered described first mould after heating of plastic to molten condition and forms the second sheet material, described second sheet material is coated in described roving glass fiber sheet material reinforced plastic layer outer surface and forms plastic outer layer.
Preferably, will the outer surface that is coated in described inner plastic be wound around by the described roving glass fiber sheet material of described plastic overmold and form roving glass fiber sheet material reinforced plastic layer and comprise:
Adjust described pipe mold and rotate described pipe mold;
The outer surface of described inner plastic will be coated in by the described roving glass fiber sheet material of described plastic overmold, often apply the described pipe mold of a circle and move axially a helical pitch, until cover the outer surface of described inner plastic completely and form the first winding layer along described pipe mold;
If the described roving glass fiber sheet thickness being coated in described inner plastic outer surface reaches preset value, stop coating, if be coated in the described roving glass fiber sheet thickness of described inner plastic outer surface lower than preset value, then again will be coated in the outer surface of described first winding layer by the described roving glass fiber sheet material of described plastic overmold, until cover described first winding layer completely to form the second winding layer;
So repeatedly, until cover described inner plastic outer surface to be reached preset value stopping coating by the roving glass fiber sheet thickness of described plastic overmold.
Preferably, the winding angle between described first winding layer and the second winding layer interlocks.
Preferably, extrude after described plastic extruder heating of plastic to molten condition and enter the first mould and form the first sheet material, described first sheet material is coated in and pipe mold forms inner plastic comprises:
Adjust described pipe mold and rotate described pipe mold;
Extrude after plastic extruder heating of plastic to molten condition and enter the first mould and form the first sheet material, described first sheet material winding is coated on pipe mold and forms the first inner plastic;
If the thickness of described first inner plastic formed reaches preset value, then stop being wound around coating;
If the thickness of described first inner plastic formed lower than preset value, then again adjusts described pipe mold and rotates described pipe mold;
Again described first sheet material is wound around the outer face being coated in described first inner plastic, until be wound around described first sheet thickness being coated in described pipe outer surface to reach preset value, stops being wound around coating.
Preferably, before the fine sheet material of described long wave is flattened by nip rolls, at the even coated one deck fused layer of outer surface of the fine sheet material of described long wave, and after the fine sheet material of described long wave is flattened by nip rolls, the fine sheet material of the described long wave then flattened is heated to described fused layer through baking oven and softens.
Compared with prior art, composite strengthening wound form force pipe provided by the invention, by long glass fibres being arranged in force pipe of the present invention, better relative to the enhancing effect of short glass fiber to force pipe; And long glass fibres is aggregated into into sheet structure, force pipe moulding process is simple, and production cost is low, and yield rate is high; Long glass fibres is evenly arranged between plastic outer layer and inner plastic, the force pipe uniform intensity of formation.
Accompanying drawing explanation
Fig. 1 is composite strengthening wound form force pipe cross-sectional schematic radially.
Fig. 2 is the structural representation of adjacent winding layer in composite strengthening wound form force pipe.
Detailed description of the invention
In order to make technical problem to be solved by this invention, technical scheme and beneficial effect clearly, understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
As shown in Figure 1, Fig. 1 is composite strengthening wound form force pipe cross-sectional schematic radially.In the present embodiment, composite strengthening wound form force pipe comprises plastic outer layer 10, inner plastic 30 and is arranged on the roving glass fiber sheet material reinforced plastic layer 20 between plastic outer layer 10 and inner plastic 30.Wherein, the fine sheet material reinforced plastic layer 20 of long wave comprises the plastics composite bed 21 of the fine sheet material 22 of long wave and the fine sheet material 22 of coated long wave, roving glass fiber sheet material 22, by the inner surface of at the outer surface of the inner plastic 30 and complete plastic covering internal layer 30 of coated plastics composite bed 21 uniform winding, forms roving glass fiber sheet material reinforced plastic layer 20.In the present embodiment, the long glass fibres that the fine sheet material 22 of long wave is arranged by rule is formed, and long glass fibres gathers together and forms the shape of sheet material.
Compared with prior art, composite strengthening wound form force pipe provided by the invention, by long glass fibres being arranged in force pipe of the present invention, better relative to the enhancing effect of short glass fiber to force pipe; And long glass fibres is aggregated into into sheet structure, make force pipe moulding process simple, only need to use single screw extrusion machine to produce, make equipment purchasing cost low, production cost is low, and yield rate is high; Long glass fibres is evenly arranged between plastic outer layer 10 and inner plastic 30, the force pipe uniform intensity of formation.
As preferably, long glass fibres is arranged along the length bearing of trend arrangement of roving glass fiber sheet material 22 and/or the width bearing of trend along roving glass fiber sheet material 22.That is, long glass fibres can all be arranged together towards the length direction of the fine sheet material 22 of long wave and be compacted into sheet; Or long glass fibres can all be arranged together towards the width of the fine sheet material 22 of long wave and be compacted into sheet; Or long glass fibres can a part be arranged towards the width of the fine sheet material 22 of long wave, a part is arranged together towards the length direction of the fine sheet material 22 of long wave and is compacted into sheet.
So, when long glass fibres can all be arranged together towards the length direction of the fine sheet material 22 of long wave and be compacted into sheet, the composite strengthening wound form force pipe of formation is higher and have higher-strength at the width page of the fine sheet material 22 of long wave in the intensity of the length direction of the fine sheet material 22 of long wave; When long glass fibres can all be arranged together towards the width of the fine sheet material 22 of long wave and be compacted into sheet, the composite strengthening wound form force pipe of formation is higher and have higher-strength at the length direction page of the fine sheet material 22 of long wave in the intensity of the width of the fine sheet material 22 of long wave; Long glass fibres can a part be arranged towards the width of the fine sheet material 22 of long wave, when a part is arranged together towards the length direction of the fine sheet material 22 of long wave and is compacted into sheet, the composite strengthening wound form force pipe of formation even intensity in all directions and higher.When a long glass fibres part is towards the width arrangement of the fine sheet material 22 of long wave, be most preferably during a part of length direction arrangement towards the fine sheet material 22 of long wave.
As preferably, roving glass fiber sheet material reinforced plastic layer 20 has some winding layers, and the winding layer be connected with inner plastic 30 is wrapped in the outer surface of inner plastic 30, and the winding angle between adjacent winding layer interlocks.Concrete, as shown in Figure 2, Fig. 2 is the structural representation of adjacent winding layer in composite strengthening wound form force pipe.The fine sheet material 22 of long wave being coated with plastics composite bed conducts to pipe mold 1 side, and uniform winding is coated in the outer surface of the inner plastic 30 that pipe mold 1 has been formed, and forms the first winding layer 201 of plastic covering internal layer 30 outer surface.In the present embodiment, relative to the cross section of pipe mold 1, the winding angle of inclination of the first winding layer 201 is different from the winding angle of inclination of inner plastic 30.That is the first winding layer 201 interlocks with the winding angle of inclination of inner plastic 30.The second winding layer 202 is also wound with at the outer surface of the first winding layer 201.The winding angle of inclination of the second winding layer 202 and the first winding layer 201 interlocks.Namely fine sheet material 22 bearing of trend of long wave being coated with plastics composite bed in the first winding layer 201 is different from fine sheet material 22 bearing of trend of the long wave being coated with plastics composite bed in the second winding layer 202.So, further improve the intensity of composite strengthening wound form force pipe, i.e. anti-pressure ability.
As preferably, plastics composite bed 21 comprises the first plastics composite bed of coated roving glass fiber sheet material 22 and the second plastics composite bed of coated first plastics composite bed, and the thickness of the first plastics composite bed is less than the thickness of the second plastics composite bed.In the present embodiment, the first plastics composite bed is fused layer, thinner thickness, and carrying out heating to the operation of the first plastics composite bed blowing hot-air can be in molten condition, is convenient to the compound of the second larger plastics composite bed of follow-up thickness and the fine sheet material 22 of long wave.So, improve the fine sheet material 22 of long wave and the composite quality of plastics composite bed 21, further improve the intensity of composite strengthening wound form force pipe, i.e. anti-pressure ability.
As preferably, inner plastic 30 is made up of interior plastic sheet, the outer face that interior plastic sheet is wrapped in pipe mold 1 forms inner plastic 30, and plastic outer layer 10 is made up of outer plastic sheet, and the outer surface that outer plastic sheet is wrapped in roving glass fiber sheet material reinforced plastic layer 20 forms plastic outer layer 10.In the present embodiment, interior plastic sheet and outer plastic sheet can be obtained by plastic extruder engagement tabs timber die or pipe mold.The inner plastic 30 be made up of plastics and the effect of plastic outer layer 10 are the toughness improving composite strengthening wound form force pipe, make its impact property high; Inner plastic 30 can improve the sanitation performance that inner plastic 30 forms pipeline space in addition; The outer face that interior plastic sheet is wrapped in pipe mold 1 forms inner plastic 30, the outer surface that outer plastic sheet is wrapped in roving glass fiber sheet material reinforced plastic layer 20 forms plastic outer layer 10, make to connect between plastic outer layer 10, roving glass fiber sheet material reinforced plastic layer 20 and inner plastic 30 tightr, further improve the intensity of composite strengthening wound form force pipe, i.e. anti-pressure ability.
The present invention also provides a kind of forming method of composite strengthening wound form force pipe.
Wherein, step S10: extrude after plastic extruder heating of plastic to molten condition and enter the first mould molding die cavity and form the first sheet material, is coated in the first sheet material on pipe mold 1 and forms inner plastic 30.
Step S20: extrude after single screw extrusion machine heating of plastic to molten condition and enter composite die, the long glass fibres of simultaneously being arranged by rule is formed roving glass fiber sheet material 22 and is flattened by nip rolls, then the roving glass fiber sheet material 22 flattened heats through baking oven, roving glass fiber sheet material 22 after heating enters composite die, and the plastics that roving glass fiber sheet material 22 is extruded by single screw extrusion machine are evenly coated.
Step S30: will the outer surface being coated in inner plastic 30 will be wound around by the roving glass fiber sheet material 22 of plastic overmold and form roving glass fiber sheet material reinforced plastic layer 20.
Step S40: plastic extruder is again extruded and entered the first mould after heating of plastic to molten condition and forms the second sheet material, the second sheet material is coated in roving glass fiber sheet material reinforced plastic layer 20 outer surface and forms plastic outer layer 10.
The forming method of composite strengthening wound form force pipe of the present invention, owing to employing the fine sheet material 22 of long wave, and then the compound of the fine sheet material 22 of long wave and plastics composite bed can be realized by single screw extrusion machine, the i.e. fine sheet material 22 of the coated long wave of plastics composite bed, equipment purchasing cost is low, technique is simple, and yield rate is high; Fine sheet material 22 intensity of long wave that the long glass fibres of being arranged by rule forms sheet is high, and be arranged between plastic outer layer 10 and inner plastic 30, the composite strengthening wound form force pipe intensity of formation is high.
First carry out the winding coating of inner plastic 10, specific embodiments is as follows:
According to the specification making composite strengthening wound form force pipe, the distance on adjustment coating winding work platform between two row's rollers, makes pipe mold 1 can to lift to coating winding work platform and firm supporting.Then by opening motor, and then pipe mold 1 is made to followed by rotation.Now, open heat gun, to the PE loaded, plastic extruder expects that grain plastifies, extrude the pipe mold entering and make sheet material subsequently, the tubing formed is cut open by cutter along with reach, and form PE sheet material after shaping, the width of this PE sheet material equals the girth cutting open front tubing.Then adjusting press-roller device makes the PE sheet material cutting open rear formation be bonded in preheating and pipe mold 1 outer surface be rotating, and applies along with the outer surface being rotated in pipe mold 1 of pipe mold 1 carries out windings.
In winding coating procedure, press-roller device does not move, heat gun is fixed in the frame of plasticizing extruder, and keep setpoint distance with the outer surface of pipe mold 1, to ensure before the PE sheet material that heat gun is positioned at all the time by coating, the pipe mold 1 simultaneously move horizontally rotation and PE sheet material heat, and ensure the fusion mass of inner layer material.PE sheet material is often pipe mold 1 outer surface one week, and pipe mold 1 horizontal displacement winding pitch (i.e. the width of PE sheet material), until PE sheet material is wound around the outer surface covering pipe mold 1 completely form the first inner plastic.
Again according to the thickness requirement of the model determination inner plastic 30 of production pipe.When the thickness of the first inner plastic formed reaches preset value, then stop the operation being wound around coating plastic internal layer 30.When the thickness of the first inner plastic formed is lower than preset value, then Correctional tube timber die 1 makes the first inner plastic distance setting value of PE sheet material and formation again, then swivelling pipe timber die 1 also reverse displacement pipe mold 1, applies formation second inner plastic again; So repeatedly, until the inner plastic 30 of the preset thickness value formed.This process can in conjunction with the thickness of adjustment PE sheet material.
In this specific embodiments, the winding angle of the first inner plastic and the second inner plastic interlocks.Specifically see that the structure of adjacent winding layer in composite strengthening wound form force pipe in above-mentioned Fig. 2 describes, do not repeat them here.
Carry out the winding coating of the fine sheet material reinforced plastic layer 20 of long wave again, be specially:
When after formation inner plastic 10, pipe mold 1 is moved horizontally to by single screw extrusion machine; Then flattened through nip rolls by fine for long wave sheet material 22, the fine sheet material 22 of the long wave after flattening enters baking oven heating, and is heated to design temperature scope in the time period entering baking oven to displacement and go out baking oven; Then fine for the long wave of heating sheet material 22 displacement is entered composite die, meanwhile the plastics being heated to molten condition are got into composite die by single screw extrusion machine; The fine sheet material 22 of long wave in composite die with the plastics compound of molten condition, owing to having very high melt pressure in composite die, ensure that the plastics of molten condition flood compound with long wave fibre sheet material 22.Even if the fine sheet material 22 of long wave at the uniform velocity displacement goes out, very high melt pressure can ensure the fine sheet material 22 of the even continuous coated long wave of the plastics of molten condition.The fine sheet material 22 of the long wave by plastic overmold formed reaches inner plastic 10 proximity to be coated through deflector roll, now electric rotating machine, makes pipe mold 1 follow rotation.Open heat gun, fine for the long wave sheet material 22 is bonded in the outer surface of the inner plastic 30 of formation by plastic overmold, and apply along with the rotation of pipe mold 1 and displacement carry out at the outer surface of pipe mold 1 windings.
In winding coating procedure, press-roller device does not move, heat gun is fixed in the frame of single screw extrusion machine, and keep setpoint distance with the outer surface of inner plastic 30, to ensure that heat gun is positioned at before the fine sheet material 22 of long wave of the coating plastic composite bed being about to coating all the time, the fine sheet material 22 of the long wave rotating the pipe mold 1 and coating plastic composite bed simultaneously moved horizontally is heated, ensures the fusion mass of inner layer material.The fine sheet material 22 of the long wave of coating plastic composite bed is often inner plastic 30 outer surface one week, pipe mold 1 horizontal displacement winding pitch (i.e. the width of the fine sheet material 22 of the long wave of coating plastic composite bed), until the fine sheet material 22 of the long wave of coating plastic composite bed is wound around the outer surface covering pipe mold 1 completely form the first winding layer.
Again according to the thickness requirement of the model determination inner plastic 30 of production pipe.When the thickness of the first winding layer formed reaches preset value, then stop the operation being wound around coating roving glass fiber sheet material reinforced plastic layer 20.When the first winding layer thickness formed is lower than preset value, then Correctional tube timber die 1 makes the fine sheet material 22 of the long wave of coating plastic composite bed and the first winding layer distance setting value formed again, then swivelling pipe timber die 1 also reverse displacement pipe mold 1, applies formation second winding layer again; So repeatedly, until form the roving glass fiber sheet material reinforced plastic layer 20 of preset thickness value.
In this specific embodiments, the winding angle of the first winding layer and the second winding layer interlocks.
The last winding coating carrying out plastic outer layer 10 again, concrete winding coating procedure is basic consistent with the winding coating procedure of inner plastic 10, just plastic outer layer 10 is wound around the outer surface being coated in shaping roving glass fiber sheet material reinforced plastic layer 20, do not repeat them here.
In this concrete scheme, the fine sheet material 22 of long wave is before flattening by nip rolls, and at the fused layer of the even coated layer of outer surface of the fine sheet material 22 of long wave, the molten plastic material that this fused layer and single screw extrusion machine are extruded is consistent.And after the fine sheet material 22 of long wave is flattened by nip rolls, the fine sheet material 22 of the long wave flattened is moved to baking oven and heats, and be heated to 80 to 90 degree at the fused layer entering fine sheet material 22 Surface coating of long wave, plastic material in baking oven to the process going out baking oven, the fused layer of this plastic material is softened, good condition is provided for the plastics of molten condition in the fine sheet material 22 of follow-up long wave and composite die merge, improve the compactness that the fine sheet material 22 of long wave merges with molten condition plastics, and then improve technology stability, the force pipe intensity of formation is more homogeneous.
Above with reference to the accompanying drawings of the preferred embodiments of the present invention, not thereby limit to interest field of the present invention.Those skilled in the art do not depart from the scope and spirit of the present invention, and multiple flexible program can be had to realize the present invention, and the feature such as an embodiment can be used for another embodiment and obtains another embodiment.All use do within technical conceive of the present invention any amendment, equivalently replace and improve, all should within interest field of the present invention.
Claims (10)
1. a composite strengthening wound form force pipe, is characterized in that, comprising:
Plastic outer layer, inner plastic and the roving glass fiber sheet material reinforced plastic layer be arranged between described plastic outer layer and described inner plastic;
Described roving glass fiber sheet material reinforced plastic layer comprises the plastics composite bed of roving glass fiber sheet material and coated described roving glass fiber sheet material, and the outer surface that described roving glass fiber sheet material is wrapped in described inner plastic by coated plastics composite bed forms described roving glass fiber sheet material reinforced plastic layer;
The long glass fibres that described roving glass fiber sheet material is arranged by rule is formed, and described long glass fibres forms sheet structure.
2. composite strengthening wound form force pipe according to claim 1, is characterized in that, described long glass fibres is arranged along the length bearing of trend arrangement of described roving glass fiber sheet material and/or the width bearing of trend along described roving glass fiber sheet material.
3. composite strengthening wound form force pipe according to claim 1, it is characterized in that, described roving glass fiber sheet material reinforced plastic layer has some winding layers, the described winding layer be connected with described inner plastic is wrapped in the outer surface of described inner plastic, and the winding angle between adjacent described winding layer interlocks.
4. composite strengthening wound form force pipe according to claim 1, is characterized in that, described plastics composite bed comprises the first plastics composite bed of coated described roving glass fiber sheet material and the second plastics composite bed of coated described first plastics composite bed.
5. composite strengthening wound form force pipe according to claim 4, it is characterized in that, described inner plastic is made up of interior plastic sheet, the outer face that described interior plastic sheet is wrapped in pipe mold forms described inner plastic, described plastic outer layer is made up of outer plastic sheet, and the outer surface that described outer plastic sheet is wrapped in described roving glass fiber sheet material reinforced plastic layer forms described plastic outer layer.
6. a forming method for composite strengthening wound form force pipe, is characterized in that, comprising:
Extrude after plastic extruder heating of plastic to molten condition and enter the first mould molding die cavity and form the first sheet material, described first sheet material is coated on pipe mold and forms inner plastic;
Extrude after single screw extrusion machine heating of plastic to molten condition and enter composite die, the roving glass fiber sheet material that the long glass fibres of simultaneously being arranged by rule is formed is flattened by nip rolls, then the described roving glass fiber sheet material flattened heats through baking oven, described roving glass fiber sheet material after heating enters described composite die, and the plastics that described roving glass fiber sheet material is extruded by described single screw extrusion machine are evenly coated;
To the outer surface being coated in described inner plastic be wound around by the described roving glass fiber sheet material of described plastic overmold and form roving glass fiber sheet material reinforced plastic layer;
Plastic extruder is again extruded and is entered described first mould after heating of plastic to molten condition and forms the second sheet material, described second sheet material is coated in described roving glass fiber sheet material reinforced plastic layer outer surface and forms plastic outer layer.
7. the forming method of composite strengthening wound form force pipe according to claim 6, is characterized in that, will is wound around the outer surface being coated in described inner plastic by the described roving glass fiber sheet material of described plastic overmold and form roving glass fiber sheet material reinforced plastic layer to comprise:
Adjust described pipe mold and rotate described pipe mold;
The outer surface of described inner plastic will be coated in by the described roving glass fiber sheet material of described plastic overmold, often apply the described pipe mold of a circle and move axially a helical pitch, until cover the outer surface of described inner plastic completely and form the first winding layer along described pipe mold;
If the described roving glass fiber sheet thickness being coated in described inner plastic outer surface reaches preset value, stop coating, if be coated in the described roving glass fiber sheet thickness of described inner plastic outer surface lower than preset value, then again will be coated in the outer surface of described first winding layer by the described roving glass fiber sheet material of described plastic overmold, until cover described first winding layer completely to form the second winding layer;
So repeatedly, until cover described inner plastic outer surface to be reached preset value stopping coating by the roving glass fiber sheet thickness of described plastic overmold.
8. the forming method of composite strengthening wound form force pipe according to claim 7, is characterized in that, the winding angle between described first winding layer and the second winding layer interlocks.
9. the forming method of composite strengthening wound form force pipe according to claim 6, it is characterized in that, extrude after described plastic extruder heating of plastic to molten condition and enter the first mould and form the first sheet material, described first sheet material is coated in and pipe mold forms inner plastic comprises:
Adjust described pipe mold and rotate described pipe mold;
Extrude after plastic extruder heating of plastic to molten condition and enter the first mould and form the first sheet material, described first sheet material winding is coated on pipe mold and forms the first inner plastic;
If the thickness of described first inner plastic formed reaches preset value, then stop being wound around coating;
If the thickness of described first inner plastic formed lower than preset value, then again adjusts described pipe mold and rotates described pipe mold;
Again described first sheet material is wound around the outer face being coated in described first inner plastic, until be wound around described first sheet thickness being coated in described pipe outer surface to reach preset value, stops being wound around coating.
10. the manufacture method of heavy caliber plastic-steel spirally-wound pipe jointing according to claim 6, it is characterized in that, before the fine sheet material of described long wave is flattened by nip rolls, at the even coated one deck fused layer of outer surface of the fine sheet material of described long wave, and after the fine sheet material of described long wave is flattened by nip rolls, the fine sheet material of the described long wave then flattened is heated to described fused layer through baking oven and softens.
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Cited By (5)
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| CN107175836A (en) * | 2017-07-17 | 2017-09-19 | 卡尔迈耶（中国）有限公司 | The preparation method of beam warper glass pressure roller |
| CN107654746A (en) * | 2017-08-16 | 2018-02-02 | 华创天元实业发展有限责任公司 | Wear-resisting steel skeleton plastic clad pipe and its manufacture method and plastics composite die |
| CN111660616A (en) * | 2020-06-28 | 2020-09-15 | 广东联塑科技实业有限公司 | High-strength thermoplastic pipe and manufacturing method thereof |
| CN112265300A (en) * | 2020-10-15 | 2021-01-26 | 滕州深水湾复合材料科技有限公司 | Method for manufacturing composite material pipeline |
| CN116118168A (en) * | 2023-04-18 | 2023-05-16 | 万美通管业(杭州)股份有限公司 | Continuous fiber reinforced thermoplastic composite pipe production equipment and process |
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Application publication date: 20151209 |