CN103485570A - Inner reinforcement composite material tower and manufacturing method thereof - Google Patents
Inner reinforcement composite material tower and manufacturing method thereof Download PDFInfo
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- CN103485570A CN103485570A CN201310464953.9A CN201310464953A CN103485570A CN 103485570 A CN103485570 A CN 103485570A CN 201310464953 A CN201310464953 A CN 201310464953A CN 103485570 A CN103485570 A CN 103485570A
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Abstract
The invention relates to an inner reinforcement composite material tower and a manufacturing method of the inner reinforcement composite material tower. The inner reinforcement composite material tower is composed of inner reinforcement structure units 1 and reinforcement layers 2, the inner reinforcement structure units 1 and the reinforcement layers 2 are formed by compounding reinforcement fibers and matrix resin, the inner reinforcement structure units 1 are combined to form an inner reinforcement structure of the inner reinforcement composite material tower, and the reinforcement layers 2 warp the inner reinforcement structure, formed by combining the inner reinforcement structure units 1, of the inner reinforcement composite material tower. Compared with a composite material tower formed in a hollow winding mode, the inner reinforcement composite material tower has the advantages of being higher in intensity and rigidity and greatly improving the shear-bearing capacity; in the manufacturing process, bubbles cannot be generated easily, holes in the tower are few, the intensity and the instability resistance of the tower are improved, and meanwhile pollution to the environment by volatile substances is reduced largely; the investment of equipment is little, and under the current small-scale application condition, the product cost is lower than that of the winding forming method.
Description
Technical field
The present invention relates to a kind of composite material pole tower, relate in particular to reinforced composite material shaft tower and preparation method thereof in a kind of insulation, can be used as power circuit, communications service, railway electrification, the insulating supporting member of track traffic and government utility and association area.
Background technology
Traditional shaft tower ubiquity heaviness, perishable, corrosion or cracking, the shortcoming that life-span is short, and construction and transportation difficulty, various potential safety hazards easily appear, development along with new material technology and preparation technology thereof, composite material is developed rapidly, it is light that composite material pole tower has quality, corrosion-resistant, intensity is high, the advantages such as the life-span is longer, maintenance cost is low and can bear extreme weather conditions, at power circuit, communications service, railway electrification, can well replace traditional rod in the engineering such as track traffic and communal facility, steel reinforced concrete pole and iron.
The composite material pole tower cross sectional shape is mainly hollow-core construction at present, and its moulding process is mainly Wrapping formed preparation technology, as patent CN102127986A, CN2898202Y, CN101718151A, CN102618017A etc.Wrapping formed preparation technology is under the condition of controlling fiber tension and predetermined line style; by continuous fiber roving or strap impregnating resin glue, continuously be wrapped in corresponding to the core of goods inner cavity size or in be lining with, then under room temperature or heating condition, make it to solidify the method for making the definite shape goods.The major defect of this shaft tower is: 1) in winding process, easily produce bubble, cause the shaft tower inner pore too much, thereby reduce interlaminar shear strength and reduce compressive strength and anti-unstability ability; 2) in winding process, fiber tension is good at controlling, cotton yarn tape and overlap joint size will strictly be controlled, and must arrange evenly, otherwise can cause the initial stress inequality of fiber in shaft tower, inside and outside degree of tightness does not wait, and shaft tower intensity is affected, and the part cotton yarn tape is overlapped with the sliding yarn in gap or a part, makes shaft tower fiber content deficiency or cause local weakness zone; 3) adopt Wrapping formed preparation technology, equipment investment is larger, and occupation area of equipment is large, and technical requirements is high, only has while production in enormous quantities in enormous quantities just can reduce costs; 4) can discharge the volatile substance pollution environment in impregnation, gel and solidification process; 5) can't prepare reinforced structure in cavity.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of interior reinforced composite material shaft tower, to solve the low problem of hollow-core construction composite material pole tower intensity; Interior reinforced composite material shaft tower preparation method is provided simultaneously, to solve in the composite material pole tower preparation process, easily produces bubble, reduce the problem of volatile substance pollution environment.
For solving the technical problem existed, the technical solution used in the present invention is: a kind of interior reinforced composite material shaft tower, by interior reinforced structure unit 1 and enhancement layer 2, formed, interior reinforced structure unit 1 and enhancement layer 2 are by fortifying fibre and matrix resin is compound makes, described a plurality of interior reinforced structures unit 1 is combined to form the interior reinforced structure of interior reinforced composite material shaft tower, and described enhancement layer 2 is wrapped in the interior reinforced structure outside that a plurality of interior reinforced structures unit 1 is combined to form interior reinforced composite material shaft tower.
The cross sectional shape of described interior reinforced composite material shaft tower can be hexagon, circle, triangle, ellipse, square or other shape etc., the preferred hexagon of the present invention, circle, triangle.
That the cross sectional shape of the interior reinforced structure unit 1 of described interior reinforced composite material shaft tower can adopt according to requirements is trapezoidal, fan-shaped, circular, triangle, square or other shape etc., and the present invention is preferably trapezoidal or fan-shaped.
The fortifying fibre of described interior reinforced structure unit 1 and enhancement layer 2 is a kind of of glass fiber, carbon fiber, aramid fiber, graphite fibre, superhigh molecular weight polyethylene fibers or basalt fibre yarn etc. or is mixed and formed by two or more.
When shaft tower of the present invention supports as transmission lines of electricity such as cables, for safety, described fortifying fibre is preferably glass fiber or other non-conductive fibers.
The enhanced form of described fortifying fibre is one or more of plain, twill, satin, unidirectional cloth, multi-shaft warp knitting cloth.
The matrix resin of described interior reinforced structure unit 1 and enhancement layer 2 is a kind of of the thermosetting resins such as epoxy resin, unsaturated polyester resin, vinylite, phenolic resins, polyurethane resin or thermoplastic resin.
The interior reinforced structure of described interior reinforced composite material bar is gone up interior reinforced structure unit 1 by 3 or 3 and is constituted.
The preparation method of interior reinforced composite material shaft tower, its preparation process comprises following step:
1) interior reinforced structure unit mould 3 pretreatment, reinforced structure unit mould 3 in cleaning, and repair smooth, then at interior reinforced structure unit mould 3 surface spraying hole sealing agent and release agents;
2) precast body of reinforced structure unit 1 in the preparation, fiber-reinforced wrapped on pretreated interior reinforced structure unit mould 3, the precast body of reinforced structure unit 1 in forming;
3) form in the combination precast body of reinforced structure unit 1, by step 2) precast body of the interior reinforced structure unit 1 for preparing combines, the combination precast body of reinforced structure unit 1 in forming;
4) preparing external surface enhancement layer 2, in step 3) the combination precast body external surface of the interior reinforced structure unit 1 that forms is wound around glass fabric and prepares enhancement layer 2, obtains the preform of shaft tower;
5) cutting and paving are covered release cloth, and the release cloth cut is laid in to step 4) in the preform surface of the shaft tower that obtains, and make it to cover fully the preform of this shaft tower;
6) lay the auxiliary material system, in step 5) described release cloth surface lays water conservancy diversion felt, mozzle and wireway equal vacuum and imports the moulding technology auxiliary material, and set gum-injecting port and the vacuum pumping opening in die cavity;
7) vacuum bag film sealing, adopt double-layer vacuum bag film by step 5) and 6) in preform and the auxiliary material system of shaft tower seal, at first seal preform and the auxiliary material system of whole shaft tower on mould with the first floor vacuum bag, airtight gum-injecting port also is connected extract opening with vacuum pump, then vacuumize and check the tightness of sealing die cavity, after first floor vacuum bag film packaging air tightness reaches requirement, seal whole first floor bag film system with the vacuum bag film of the second layer, and vacuumize continuation inspection tightness, until tightness reaches requirement;
8) basic resin system mold filling dipping preform: open the basic resin system that gum-injecting port will stir and process through deaeration and utilize the preform that floods above-mentioned shaft tower in negative pressure of vacuum injection moulding die cavity, close gum-injecting port after the preform of basic resin system thorough impregnation shaft tower, and continue to vacuumize the vacuum kept in shaping mold cavity;
9) curing molding and post processing, must keep the interior vacuum of shaping mold cavity until completion of cure carries out the post processings such as the demoulding, finishing and cleaning after having solidified in solidification process.
The interior reinforced structure unit mould of interior reinforced composite material shaft tower; the section feature of the interior reinforced structure unit 1 of described mold sections feature and shaft tower is identical, can adopt art matter mould, metal die, glass punching block or elastic packing bag the inside to be full of liquid or gas flexible core mold.
Beneficial effect of the present invention is:
The more hollow winding molding compound material shaft tower of the present invention is compared, and has the following advantages: 1) interior reinforced structure makes composite material pole tower intensity, rigidity higher, has greatly improved shear resistance; 2) the present invention is the closed moulding method, is not easy to produce bubble in preparation process, and the shaft tower inner pore is few, has improved intensity and the anti-unstability ability of shaft tower, has greatly reduced in addition the volatile substance pollution environment; 3) mould of the present invention is easy to manufacture, and equipment investment is few under current small-scale application condition, and the product cost obtained than winding, molding method is lower.
The accompanying drawing explanation
Fig. 1 is preparation method's flow chart of the present invention;
Fig. 2 is composite material hexagon shaft tower schematic diagram;
Fig. 3 is reinforced structure unit mould schematic diagram in composite material hexagon shaft tower;
Fig. 4 is reinforced structure cell schematics in composite material hexagon shaft tower;
Fig. 5 is reinforced structure unit combination schematic diagram in composite material hexagon shaft tower;
Fig. 6 is composite material circular pin tower structure schematic diagram;
Fig. 7 is reinforced structure cell schematics in the circular shaft tower of composite material;
Fig. 8 is reinforced structure unit combination schematic diagram in the circular shaft tower of composite material;
Fig. 9 is composite material triangular pelvis tower structure schematic diagram;
Figure 10 is reinforced structure cell schematics in composite material triangle shaft tower;
Figure 11 is reinforced structure unit combination schematic diagram in composite material triangle shaft tower;
In figure, 1 is interior reinforced structure unit, and 2 is enhancement layer, and 3 is interior reinforced structure unit mould.
The specific embodiment
Illustrate the specific embodiment of this invention below in conjunction with accompanying drawing.
Embodiment 1:
Preparation hexagon composite material pole tower as shown in Figure 2.Material: 1) fortifying fibre, twin shaft is to through compiling glass fabric; 2) matrix resin, epoxy resin.As shown in Figure 3, the material of interior reinforced structure unit mould 3 is aluminium alloys to interior reinforced structure unit mould 3.Its preparation method flow process as shown in Figure 1, comprises following step:
1) interior reinforced structure unit mould 3 pretreatment: with alcohol by interior reinforced structure unit mould 3 surperficial wiped clean, then at interior reinforced structure unit mould 3 surface spraying AXEL S-19C hole sealing agent and AXELX-807 release agents;
2) precast body of reinforced structure unit 1 in the preparation: be wound around the precast body of twin shaft to reinforced structure unit 1 in compiling glass fabric, forming on pretreated interior reinforced structure unit mould 3, as shown in Figure 4:
The precast body of the unit of the interior reinforced structure as Fig. 41 3) the combination precast body of reinforced structure unit 1 in formation: by step 2) prepared combines, the combination precast body of reinforced structure unit 1 in forming, as shown in Figure 5;
4) preparing external surface enhancement layer 2: in step 3) the combination precast body external surface of the unit of the interior reinforced structure as Fig. 51 that forms is wound around twin shaft to through compiling glass fabric, preparing enhancement layer 2, obtains the preform of shaft tower;
5) cutting and paving are covered release cloth: the R85PA66 release cloth cut is laid in to step 4) in the preform surface that obtains, and make it to cover fully the preform of this shaft tower;
6) lay the auxiliary material system: lay water conservancy diversion felt, mozzle and wireway equal vacuum at above-mentioned release cloth upper surface and import the moulding technology auxiliary material, and set gum-injecting port and the vacuum pumping opening in die cavity;
7) vacuum bag film sealing: adopt double-layer vacuum bag film (the Vacfilm400Y2600 type vacuum bag that French Aerorac company produces) to seal preform and the auxiliary material system of above-mentioned shaft tower, at first seal preform and the auxiliary material system of whole shaft tower on mould with the first floor vacuum bag, airtight gum-injecting port also is connected extract opening with vacuum pump, then vacuumize and check the sealing die cavity tightness (when reach-0.090Mpa of vacuum～-close vacuum pump after 0.1Mpa, pressurize 15 minutes, vacuum allows drop-out value to be less than 50mbar during this time), after first floor vacuum bag film packaging air tightness reaches requirement, seal whole first floor bag film system with the vacuum bag film of the second layer, and vacuumize and continue to check tightness, until tightness reaches requirement (requirement can continue to keep vacuum),
8) basic resin system mold filling dipping preform: open the basic resin system that gum-injecting port will stir and process through deaeration and utilize the above-mentioned preform of dipping in negative pressure of vacuum injection moulding die cavity, close gum-injecting port after basic resin system thorough impregnation preform, and continue to vacuumize the vacuum kept in shaping mold cavity;
9) curing molding and post processing: in solidification process, must keep the interior vacuum of shaping mold cavity until completion of cure carries out the post processings such as the demoulding, finishing and cleaning after having solidified.
Embodiment 2:
Preparation circular composite material pole tower as shown in Figure 6.Material: 1) fortifying fibre, twin shaft is to through compiling glass fabric; 2) matrix resin, vinylite.As shown in Figure 7, the combination of interior reinforced structure unit 1 as shown in Figure 8 in interior reinforced structure unit 1.Its preparation method is identical with embodiment 1.
Embodiment 3:
Preparation triangular-section composite material pole tower as shown in Figure 9.Material: 1) fortifying fibre, twin shaft is to through compiling glass fabric; 2) matrix resin, polyurethane resin.As shown in figure 10, the combination of interior reinforced structure unit 1 as shown in figure 11 in interior reinforced structure unit 1.Its preparation method is identical with embodiment 1.
Finally should be noted that, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although with reference to preferred embodiment, the present invention is had been described in detail, those of ordinary skill in the art should, can modify or be equal to replacement technical scheme of the present invention, and not break away from the spirit and scope that the technology of the present invention is put on record.
Claims (10)
1. reinforced composite material shaft tower in a kind, by interior reinforced structure unit (1) and enhancement layer (2), formed, interior reinforced structure unit (1) and enhancement layer (2) are by fortifying fibre and matrix resin is compound makes, it is characterized in that: described a plurality of interior reinforced structures unit (1) are combined to form the interior reinforced structure of interior reinforced composite material shaft tower, and described enhancement layer (2) is wrapped in the interior reinforced structure outside that a plurality of interior reinforced structures unit (1) are combined to form interior reinforced composite material shaft tower.
2. interior reinforced composite material shaft tower according to claim 1, it is characterized in that: the cross sectional shape of described interior reinforced composite material shaft tower is hexagon, circle or triangle.
3. interior reinforced composite material shaft tower according to claim 2, it is characterized in that: the cross sectional shape of the interior reinforced structure unit (1) of described interior reinforced composite material shaft tower is respectively trapezoidal or fan-shaped.
4. interior reinforced composite material shaft tower according to claim 1, it is characterized in that: the fortifying fibre of described interior reinforced structure unit (1) and enhancement layer (2) is a kind of of glass fiber, carbon fiber, aramid fiber, graphite fibre, superhigh molecular weight polyethylene fibers or basalt fibre yarn or is mixed and formed by two or more.
5. interior reinforced composite material shaft tower according to claim 4 is characterized in that: when described shaft tower supports as transmission lines of electricity such as cables, for safety, described fortifying fibre is preferably glass fiber or other non-conductive fibers.
6. according to the described interior reinforced composite material shaft tower of claim 4 or 5, it is characterized in that: the enhanced form of described fortifying fibre is one or more of plain, twill, satin, unidirectional cloth, multi-shaft warp knitting cloth.
7. interior reinforced composite material shaft tower according to claim 1, it is characterized in that: the matrix resin of described interior reinforced structure unit (1) and enhancement layer (2) is a kind of of the thermosetting resins such as epoxy resin, unsaturated polyester resin, vinylite, phenolic resins, polyurethane resin or thermoplastic resin.
8. interior reinforced composite material shaft tower according to claim 1 is characterized in that: the interior reinforced structure of described interior reinforced composite material bar by 3 or 3 upper in reinforced structure unit (1) constitute.
9. the preparation method of interior reinforced composite material shaft tower, its preparation process comprises following step:
1) interior reinforced structure unit mould (3) pretreatment, the cleaning in reinforced structure unit mould (3), and repair smooth, then at interior reinforced structure unit mould (3) surface spraying hole sealing agent and release agent;
2) precast body of reinforced structure unit (1) in the preparation, the precast body of reinforced structure unit (1) in pretreated interior reinforced structure unit mould (3) upper fiber-reinforced wrapped, is formed;
3) form in the combination precast body of reinforced structure unit (1), by step 2) precast body of the interior reinforced structure unit 1 for preparing combines, the combination precast body of reinforced structure unit (1) in forming;
4) preparing external surface enhancement layer (2), in step 3) the combination precast body external surface of the interior reinforced structure unit (1) that forms is wound around glass fabric and prepares enhancement layer (2), obtains the preform of shaft tower;
5) cutting and paving are covered release cloth, and the release cloth cut is laid in to step 4) in the preform surface of the shaft tower that obtains, and make it to cover fully the preform of this shaft tower;
6) lay the auxiliary material system, in step 5) described release cloth surface lays water conservancy diversion felt, mozzle and wireway equal vacuum and imports the moulding technology auxiliary material, and set gum-injecting port and the vacuum pumping opening in die cavity:
7) vacuum bag film sealing, adopt double-layer vacuum bag film by step 5) and 6) in preform and the auxiliary material system of shaft tower seal, at first seal preform and the auxiliary material system of whole shaft tower on mould with the first floor vacuum bag, airtight gum-injecting port also is connected extract opening with vacuum pump, then vacuumize and check the tightness of sealing die cavity, after first floor vacuum bag film packaging air tightness reaches requirement, seal whole first floor bag film system with the vacuum bag film of the second layer, and vacuumize continuation inspection tightness, until tightness reaches requirement:
8) basic resin system mold filling dipping preform: open the basic resin system that gum-injecting port will stir and process through deaeration and utilize the preform that floods above-mentioned shaft tower in negative pressure of vacuum injection moulding die cavity, close gum-injecting port after the preform of basic resin system thorough impregnation shaft tower, and continue to vacuumize the vacuum kept in shaping mold cavity;
9) curing molding and post processing, must keep the interior vacuum of shaping mold cavity until completion of cure carries out the post processings such as the demoulding, finishing and cleaning after having solidified in solidification process.
10. the interior reinforced structure unit mould of interior reinforced composite material shaft tower; it is characterized in that: the section feature of the interior reinforced structure unit (1) of described mold sections feature and shaft tower is identical, adopts wood mold coupled, metal die, glass punching block or elastic packing bag the inside to be full of liquid or gas flexible core mold.
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| CN201310464953.9A CN103485570B (en) | 2013-09-24 | 2013-09-24 | Reinforced composite material shaft tower and preparation method thereof in a kind of |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105952237A (en) * | 2016-07-02 | 2016-09-21 | 山东华业风能设备有限公司 | Composite material cable pylon and preparation method thereof |
| CN106863835A (en) * | 2017-01-11 | 2017-06-20 | 北京汽车集团有限公司 | The forming method of hollow vehicle component and hollow vehicle component and automobile |
| CN110130713A (en) * | 2019-06-05 | 2019-08-16 | 温岭市电力绝缘器材有限公司 | A kind of the cross-arm structure and tower bar structure of shaft tower |
| CN111674058A (en) * | 2020-06-01 | 2020-09-18 | 南京航空航天大学 | Preparation device and method of carbon fiber three-dimensional woven honeycomb composite material |
| CN114083815A (en) * | 2021-09-26 | 2022-02-25 | 中车青岛四方机车车辆股份有限公司 | Cross beam forming die, cross beam forming process and cross beam |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105952237A (en) * | 2016-07-02 | 2016-09-21 | 山东华业风能设备有限公司 | Composite material cable pylon and preparation method thereof |
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| CN111674058A (en) * | 2020-06-01 | 2020-09-18 | 南京航空航天大学 | Preparation device and method of carbon fiber three-dimensional woven honeycomb composite material |
| CN111674058B (en) * | 2020-06-01 | 2021-06-29 | 南京航空航天大学 | Preparation device and method of carbon fiber three-dimensional woven honeycomb composite material |
| CN114083815A (en) * | 2021-09-26 | 2022-02-25 | 中车青岛四方机车车辆股份有限公司 | Cross beam forming die, cross beam forming process and cross beam |
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| CN103485570B (en) | 2016-08-24 |
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