CN112761070A - Multipurpose high-strength integrated solid carbon fiber inhaul cable and preparation method thereof - Google Patents
Multipurpose high-strength integrated solid carbon fiber inhaul cable and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a multipurpose high-strength integrated solid carbon fiber inhaul cable, which comprises: the cable body is formed by twisting, compacting and curing a pre-impregnated carbon fiber winding formed by winding pre-impregnated carbon fibers for multiple times, and comprises a cable main body and closed rings formed at two ends of the cable main body, wherein the cable main body is of a solid structure, and the length direction of the fibers of the pre-impregnated carbon fibers is the same as that of the cable main body; a wire winding formed by winding and binding a wire on the cable main body; and the 2 alloy joints are fastened in the closed ring respectively, the alloy joints are made of non-as-cast stainless steel or titanium alloy, the alloy joints are provided with connecting holes, and the axial direction of the connecting holes is vertical to the length direction of the inhaul cable body. The complete infiltration and combination of the dense carbon fibers and the pre-impregnated resin glue solution are really realized through the twisting and fastening of the pre-impregnated carbon fibers, the requirements of high strength and light weight are met by matching with the use of the alloy joint, the installation is simple, and the use length is not limited.
Description
Technical Field
The invention belongs to the technical field of composite materials, and relates to an integrated carbon fiber inhaul cable, in particular to a multipurpose high-strength integrated solid carbon fiber inhaul cable and a preparation method thereof.
Background
At present, various guys or supporting ropes used in various fields such as bridges, engineering machinery, capital construction and the like basically adopt steel cables. The steel cable has the characteristics of low price and mature process, and is widely applied in various industries all the time. However, the steel cord drawbacks are also evident, mainly in: the corrosion resistance is poor, the maintenance cost for large cables is high, and small cables need to be replaced frequently due to corrosion; ② the self-weight, the specific gravity is about 7.8g/cm3(ii) a And thirdly, the steel wire and the anchor cup are connected together in a grouting mode by adopting the anchor cup for connection, and the anchor cup is connected or linked with the structural part in a threaded mode, so that the connecting piece is troublesome to manufacture and is easy to damage the stressed steel wire. Chinese patent document (application No. 201310004771.3) discloses a method for manufacturing a carbon fiber composite tie plate, comprising the steps of: (1) an end connecting piece of the titanium alloy casting pulling plate; (2) manufacturing a carbon fiber composite material pulling plate: winding the carbon fiber tows on the surfaces of the two end connecting pieces, applying transverse pressure to the carbon fiber tows between the two end connecting pieces during winding to enable the carbon fiber tows to be tightly attached to the end connecting pieces, and meanwhile, uniformly distributing the carbon fiber tows on the surfaces of the end connecting pieces to enable the carbon fiber tows not to be overlapped; putting the shaping mold into a hot-pressing curing box, and performing curing treatment on the pulling plate to ensure uniform curing; after the solidification is finished, the middle part of the pulling plate is wound with a carbon fiber cloth belt which forms +/-45 degrees with the pulling plate. The prepared carbon fiber composite material pulling plate is used for a pulling plate of an automobile crane supporting rope, but has the following defects: (1) the cast titanium alloy is adopted as a joint, so that the defect of low strength is mostly not suitable for being used as a high-strength inhaul cable; (2) the combination of carbon fiber filaments which are not presoaked and plastic needs to be heated and cured; (3) the core of the produced plate is not impregnated with resinMoistening, only covering a layer of plastic on the surface to form a solid core which is difficult to compact; (4) the device can only be used for a truck crane supporting cable or similar equipment, and due to the plate type structure, the device can be influenced by wind direction sometimes to cause the problems of shaking of the truck crane and the like. Due to the above-mentioned drawbacks, the patented products have not yet been well applied. Chinese patent document (application number 202010942659.4) discloses a self-anchored carbon fiber cable, which is a cable body with multiple carbon fiber layers formed by sequentially laminating, surrounding and curing unidirectional carbon fiber prepregs, wherein the fiber direction of the carbon fiber cable body is the same as the length direction of the carbon fiber cable body, two ends of the carbon fiber cable body form closed rings, and the part of the carbon fiber cable body between the two closed rings is a cable body; the two anchors respectively comprise a steel inner core, a steel clamping plate and a fastener; the steel inner cores of the two anchorage devices are respectively positioned in the two closed rings in a one-to-one correspondence manner and are attached to the inner surfaces of the corresponding closed rings; the steel clamping plates of the two anchorage devices are respectively and correspondingly arranged on the outer surface of the closed ring; the fasteners of the two anchorage devices respectively fasten the corresponding steel clamping plates and the steel inner core. However, the patent has the following technical defects: (1) the cable body with a plurality of carbon fiber layers, which is formed by sequentially laminating, surrounding and curing unidirectional carbon fiber prepregs, is a non-compact cable body, even a hollow structure may exist in the middle, and the cable body is easy to layer when stressed; the rigidity is poor, the steel plate is easy to bend when in use, and is easy to bend and damage particularly when the length is large; the bearing capacity is reduced under the condition of the same volume; (2) the steel splint increases the weight, the carbon fiber is easily scratched by the edge contacted with the carbon fiber when the carbon fiber is stressed, and the splint is troublesome to manufacture and increases extra cost; (3) the cable body is sheet-shaped and can only be applied to specific occasions, and is easy to be disturbed by wind direction to cause vibration, shaking and the like when being used outdoors; (4) high temperature curing is required, but high temperature curing is only suitable for the production of small cables with smaller length, which is generally less than 10 meters.
In the prior art, a sling is made of a carbon fiber reinforced strand instead of a steel wire, but the prior art has the following defects: (1) the carbon fiber ribs replace steel wires, although some weight is reduced, the combination degree of the carbon fiber ribs is limited, so that gaps exist in the carbon fiber rib bundles in the cable, the use strength is influenced, and the tensile deformation and the breaking load are reduced due to easy damage among the rib bundles; (2) in order to ensure the use strength of the cable, the outer surface of the carbon fiber reinforced plastic cable is required to be wrapped with a plurality of protective layers, so that the whole weight is reduced to a limit; (3) the connection still adopts heavy anchor cup and grout mode, and under this mode, the carbon fiber muscle will receive the damage more easily because the shear resistance can not be enough, simultaneously because the anchor cup is heavy, to the short cable, for example 3 meters below the cable, its weight reduction effect is not obvious. In addition, the connecting anchorage device is generally made of alloy steel, and the corrosion resistance of the connecting anchorage device cannot be consistent with that of a carbon fiber tendon cable body.
Disclosure of Invention
In order to overcome the problems in the prior art, the invention provides a multipurpose high-strength integrated solid carbon fiber inhaul cable which is high in strength, light in weight, corrosion resistant and simple to mount and a preparation method thereof.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: a multipurpose high strength integrated solid carbon fiber cable comprising:
the cable body is formed by twisting, compacting and curing a pre-impregnated carbon fiber winding formed by winding pre-impregnated carbon fibers for multiple times, and comprises a cable main body and closed rings formed at two ends of the cable main body, wherein the cable main body is of a solid structure, and the length direction of the fibers of the pre-impregnated carbon fibers is the same as that of the cable main body;
a wire winding formed by winding and binding a wire on the cable main body;
and the 2 alloy joints are fastened in the closed ring respectively, the alloy joints are made of non-as-cast stainless steel or titanium alloy, the alloy joints are provided with connecting holes, and the axial direction of the connecting holes is vertical to the length direction of the inhaul cable body. Through the connecting hole, both ends can be directly connected with other components by the bolt, and the installation is simple and the use is convenient. Meanwhile, the two ends of the stay cable are connected by simple pins, so that the stay cable and the stay cable can be simply connected, the service length of the stay cable is not limited, and the stay cable is difficult to realize for the anchor cup structure.
In order to increase the connection firmness of the closed rings at the two ends of the zipper and the alloy joint and prevent the zipper from slipping, preferably, the outer surface of the alloy joint is provided with a groove, the depth of the groove can be determined according to the thickness of the pre-impregnated carbon fiber wound on the surface of the alloy joint, and then the alloy joint is fastened in the closed ring through the groove.
Further defining the shape of the alloy joint may be circular or oval.
The shape of the pre-impregnated carbon fiber is further limited, and the pre-impregnated carbon fiber is in a belt shape or a thread shape for the convenience of torsion and the strength guarantee of the cable body. The tape-shaped pre-impregnated carbon fibers in the present invention are formed by bonding a plurality of bundles of pre-impregnated carbon fibers side by side, and the filament-shaped pre-impregnated carbon fibers are single bundles of pre-impregnated carbon fibers.
Further, the torsion angle of the carbon fiber at the cable main body is 2-3 degrees.
The cross section of the inhaul cable main body is further limited to be round or special-shaped, wherein the round is more preferable, the round is suitable for both indoor and outdoor, and when the inhaul cable main body is used outdoors, vibration or deviation caused by wind power influence can be avoided, and the inhaul cable has the characteristics of safety and stability. In addition, two ends of the product can form various angles through twisting, so that the connecting requirements of different components are met, and the use occasions of the carbon fiber zipper are expanded to a certain extent, for example, the carbon fiber zipper can be used in various tension occasions, such as bridge slings, venue guys, building reinforcement and the like.
Further, the wire is a filiform or ribbon-like glass fiber, or a filiform or ribbon-like carbon fiber.
In order to further increase the wear resistance, the outer circumferential surface of the wire winding is coated with a ceramic coating.
Preferably, the prepreg carbon fiber can realize the curing speed by adjusting the components of the prepreg resin glue solution so as to adapt to various application scenes. The carbon fiber cable can be naturally cured in twisted and tensioned states, the curing time is determined according to the specification and the resin system of the carbon fiber zipper, and the twisted and bound pre-impregnated carbon fiber cable can be quickly cured by heating according to the requirement. More specifically, the prepreg resin glue solution comprises the following components in parts by weight: 100 plus or minus 2 parts of epoxy resin, 25 plus or minus 2 parts of 593 curing agent, 2 plus or minus 1 part of 3, 5-dimethylthiotoluenediamine and 2 plus or minus 1 part of alumina powder (more preferably, the alumina powder is 1000 meshes).
A preparation method of the multipurpose high-strength integrated solid carbon fiber inhaul cable comprises the following steps:
1) fixing 2 alloy joints at intervals relatively, and winding pre-impregnated carbon fibers on the 2 alloy joints to form pre-impregnated carbon fiber windings, wherein the alloy joints are positioned at two radial ends of the pre-impregnated carbon fiber windings;
2) moving at least one of the 2 alloy joints to enable the pre-impregnated carbon fiber winding to be tensioned to the preset length of the multipurpose high-strength integrated solid carbon fiber inhaul cable, then controlling the alloy joints and twisting the pre-impregnated carbon fiber winding to enable the pre-impregnated carbon fibers among the 2 alloy joints to be twisted into the inhaul cable main body, enabling the pre-impregnated carbon fibers at the alloy joints to form a closed ring, and then pressing the inhaul cable body in the radial direction to enable the solid inhaul cable body to be formed;
3) and winding a wire on the solid cable main body, binding the solid cable main body in the radial direction, and standing and curing to obtain the multipurpose high-strength integrated solid carbon fiber cable.
Furthermore, the winding method of the pre-impregnated carbon fiber is that one end of the pre-impregnated carbon fiber is controlled to bypass one alloy joint and then another alloy joint, and then bypass one alloy joint and then another alloy joint, and the process is repeated for a plurality of times;
further, the distance between the 2 alloy joints in the step 1) is fixed according to 95% -98% of the preset length of the multipurpose high-strength integrated solid carbon fiber inhaul cable.
Compared with the prior art, the invention has the following beneficial effects:
the invention really realizes the complete infiltration and combination of the compact carbon fibers and the pre-impregnated resin glue solution through the twisting and fastening of the pre-impregnated carbon fibers, all the carbon fibers are arranged according to the load direction when in use, thereby further achieving the requirements of high strength and light weight, the strength of the carbon fiber inhaul cable with the same size can be improved by more than 1.5 times compared with the traditional steel cable, and the weight is only 1/4 of the traditional steel cable.
The invention solves the problems of troublesome and unsafe sling connection, integrates the alloy joint and the cable body together during the manufacturing process, and can adopt simple pin connection during the installation.
The alloy joint adopts non-casting stainless steel or titanium alloy, so that the strength and corrosion resistance of the joint and the cable body are matched, and almost no corrosion protection maintenance is needed. The traditional steel cable is connected by adopting the anchor cup, the weight of a general anchor cup system is larger (about dozens of kilograms), and the joint is easy to damage or rust, the volume of the alloy joint of the inhaul cable can be reduced to 1/3-1/4 of the traditional anchor cup under the condition of the same specification, and the weight of the inhaul cable is really about 1/4 of the steel cable.
The manufacturing process is simple, and manual winding or mechanical arm winding can be adopted.
Controllability of the performance of the inhaul cable is achieved, and the mechanical performance of the final inhaul cable can be controlled by paving varieties (such as the strength level of the preimpregnated carbon fibers and the size of tows) and the number of different preimpregnated carbon fibers.
The cable can be used in various scenes, such as suspension bridge slings, stayed cables or slings of a cable-stayed bridge, various arch bridge slings, automobile crane or tower crane supporting cables, stadium cables, building earthquake-resistant reinforcing cables and the like.
Drawings
Fig. 1 is a schematic structural view of a multipurpose high-strength integrated solid carbon fiber cable according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view of the alloy joint of the multipurpose high-strength integrated solid carbon fiber cable of FIG. 1 taken along the A-A direction;
fig. 3 is a schematic structural diagram of a pre-impregnated carbon fiber winding according to an embodiment of the present invention.
Fig. 4 is a schematic structural view of a cable body in the embodiment of the invention.
The reference numbers in the figures are: 1. the cable comprises a cable body, 101, a cable main body, 102, a closed ring, 2, a wire winding, 3, an alloy joint, 4, a groove, 5, a connecting hole and 6, and a pre-impregnated carbon fiber winding.
Detailed Description
The invention is described in more detail below with reference to the following examples:
a multipurpose high strength integrated solid carbon fiber cable comprising:
the cable body 1 is formed by twisting, compacting and curing a pre-impregnated carbon fiber winding 6 formed by winding pre-impregnated carbon fibers for multiple times, and comprises a cable main body 101 and closed rings 102 formed at two ends of the cable main body 101, wherein the cable main body 101 is of a solid structure, and the length direction of the fibers of the pre-impregnated carbon fibers is the same as that of the cable main body 101;
a wire winding 2 formed by winding and tightening a wire around the cable main body 101;
and 2 alloy joints 3 respectively fastened in the closed ring 102.
The structure of the alloy joint 3 is as follows: the alloy joint 3 is provided with a connecting hole 5, and the axial direction of the connecting hole 5 is vertical to the length direction of the inhaul cable body 1. Through the connecting hole 5, both ends can be directly connected with other components by bolts, and the installation is simple and the use is convenient. Meanwhile, the two ends of the stay cable are connected by simple pins, so that the stay cable and the stay cable can be simply connected, the service length of the stay cable is not limited, and the stay cable is difficult to realize for the anchor cup structure.
In order to increase the connection firmness of the closed ring 102 at two ends of the zipper and the alloy joint 3 and prevent slipping, the outer surface of the alloy joint 3 is provided with a groove 4, the depth of the groove 4 can be determined according to the thickness of the pre-impregnated carbon fiber wound on the surface of the alloy joint 3, and then the alloy joint 3 is fastened in the closed ring 102 through the groove 4.
The shape of the alloy joint 3 can be round or oval, the material of the alloy joint 3 is non-cast stainless steel or titanium alloy, the corrosion problem can be solved, the strength and the corrosion resistance of the alloy joint are kept matched with those of the inhaul cable body 1, and almost no corrosion prevention maintenance is needed. The alloy joint 3 only has the volume of 1/3-1/4 of a traditional anchor cup, and really realizes the weight of the whole cable of 1/4 of the steel cable.
For the convenience of torsion and the strength of the cable body 1, the pre-impregnated carbon fibers are in a belt shape or a filiform shape, and the torsion angle of the carbon fibers at the cable main body 101 is 2-3 degrees.
The cross section of the cable main body 101 is round or special-shaped, wherein round is more preferable, round is suitable for both indoor and outdoor, and when the cable main body is used outdoors, vibration or deviation caused by wind influence can be avoided, and the cable main body has the characteristics of safety and stability. In addition, two ends of the product can form various angles through twisting, so that the connecting requirements of different components are met, and the use occasions of the carbon fiber zipper are expanded to a certain extent, for example, the carbon fiber zipper can be used in various tension occasions, such as bridge slings, venue guys, building reinforcement and the like.
The wire is a filiform or ribbon-shaped glass fiber or a filiform or ribbon-shaped carbon fiber, and in order to further increase the wear resistance, the outer circumferential surface of the wire winding 2 is coated with a ceramic coating. The pre-impregnated carbon fiber can be naturally cured in a twisted and tensioned state, the curing time is determined according to the specification and the resin system of the carbon fiber zipper, and the twisted and bound pre-impregnated carbon fiber inhaul cable can be quickly cured by heating according to the requirement.
A preparation method of the multipurpose high-strength integrated solid carbon fiber inhaul cable comprises the following steps:
(1) fixing 2 alloy joints 3 at intervals relatively, and winding pre-impregnated carbon fibers on the 2 alloy joints 3 to form an annular pre-impregnated carbon fiber winding 6, wherein the alloy joints 3 are positioned at two radial ends of the pre-impregnated carbon fiber winding 6;
(2) moving at least one of the 2 alloy joints 3 to tension the pre-impregnated carbon fiber winding 6 to a preset length of the multipurpose high-strength integrated solid carbon fiber cable, then controlling the alloy joints 3 and twisting the pre-impregnated carbon fiber winding 6 to twist the pre-impregnated carbon fibers among the 2 alloy joints 3 into the cable main body 101, forming the closed ring 102 by the pre-impregnated carbon fibers at the alloy joints 3, and then pressing the cable body 1 in the radial direction to form the solid cable body 1;
(3) and winding a wire on the solid cable main body 101 to enable the solid cable main body 101 to be bound into a round shape in the radial direction, and then standing and curing to obtain the multipurpose high-strength integrated solid carbon fiber cable.
The winding method of the pre-impregnated carbon fiber comprises the steps of controlling one end of the pre-impregnated carbon fiber to bypass one alloy joint 3 and then bypass the other alloy joint 3, then bypass one alloy joint 3 and then bypass the other alloy joint 3, and repeating the steps for many times;
the distance between the 2 alloy joints 3 in the step (1) is fixed according to 95% -98% of the preset length of the multipurpose high-strength integrated solid carbon fiber inhaul cable.
The specific preparation examples are as follows:
the prepreg resin glues of the following examples contain the following components by weight: 100 parts of epoxy resin (produced by Baling petrochemical company, Ltd.), 25 parts of 593 curing agent (produced by China petrochemical company, Ltd.), 2 parts of dimethylthiotoluenediamine (E.300 for short, produced by American Ethyl corporation) and 2 parts of 1000-mesh aluminum oxide (Henan Turui fine grinding materials, Ltd.).
Example 1
High-strength inhaul cable for stadium
The requirement of the stay cable is as follows: the load bearing capacity is 490 tons (considering the safety factor of 2.2-2.5) and the length is 18.5 meters
Firstly, preparing raw materials: the prepreg carbon fiber is a T700SC 24K carbon fiber prepreg tape, and the mass ratio of the carbon fiber bundles to the prepreg resin glue solution is set to be 7: 3, the width of the pre-impregnated carbon fiber is 35 mm,
a plurality of glass fiber adhesive tapes
Ceramic coating
2 titanium alloy circular joints with the outer diameter of 150 mm and the inner diameter of 50 mm, the depth of the groove 4 of 30 mm and the width of 50 mm, and the thickness of two side walls of the groove of 2.5 mm respectively.
Secondly, setting the distance between 2 titanium alloy circular joints to be 17.6 meters, and winding the pre-impregnated carbon fiber by taking two alloy joints 3 (titanium alloy circular joints in the embodiment) as supports for 16 circles to form a pre-impregnated carbon fiber winding 6.
And thirdly, moving the titanium alloy round joint at one end to tension the pre-impregnated carbon fiber winding 6.
Fourthly, twisting the titanium alloy round joint at one end of the cable and the pre-impregnated carbon fiber winding 6 to enable the pre-impregnated carbon fibers among the 2 alloy joints 3 to be twisted into the cable main body 101, wherein the carbon fibers at the cable main body 101 form a certain twisting angle which is generally 2-3 degrees and can be adjusted according to conditions.
And fifthly, extruding the inhaul cable body 1 from the radial direction by using a sleeve pressing die to form a solid inhaul cable body 1.
And sixthly, tightly binding the cable main body 101 by using a glass fiber adhesive tape to form a glass fiber adhesive tape winding.
Seventhly, standing and curing for 30 hours at room temperature, wherein the standing time is different according to the specification of the cable body, and if necessary, heating can be carried out to shorten the curing time.
And eighthly, after the solidification is finished, coating ceramic paint on the outer peripheral surface of the glass fiber tape winding to form a ceramic coating.
The test results of the guy cable samples prepared based on the method of this example are shown in table 1:
table 1:
the actual bearable load is 494 tons, the safety factor is 2.47, and the requirement of the safety factor between 2.2 and 2.5 is met.
If a current commercial high strength steel strand cord (in 2000 MPa) is used, the weight of the steel cord under the same conditions is about: 350 kg. Therefore, the weight reduction effect is very obvious.
Example 2
Support inhaul cable for truck crane
The requirement of the stay cable is as follows: load 250 tons (a safety factor of 3.5 is considered) and have a length of 14 meters
Firstly, preparing raw materials: the prepreg carbon fiber is a T700SC carbon fiber 12K prepreg tape, and the mass ratio of the carbon fiber bundle to the prepreg resin glue solution is 7: and 3, the width of the pre-impregnated carbon fiber is 25 millimeters.
A plurality of glass fiber adhesive tapes
Ceramic coating
The titanium alloy circular joints are 2, the outer diameter is 100 mm, the inner diameter is 40 mm, the depth of the groove 4 is 20 mm, the width is 35 mm, and the wall thickness of the two sides of the groove is 2.5 mm respectively.
Secondly, setting the distance between 2 titanium alloy circular joints to be 13.5 meters, and winding the pre-impregnated carbon fiber for 13 circles by taking two alloy joints 3 (titanium alloy circular joints in the embodiment) as supports to form a pre-impregnated carbon fiber winding 6.
And thirdly, moving the titanium alloy round joint at one end to tension the pre-impregnated carbon fiber winding 6.
Fourthly, twisting the titanium alloy round joint at one end of the cable and the pre-impregnated carbon fiber winding 6 to enable the pre-impregnated carbon fibers among the 2 alloy joints 3 to be twisted into the cable main body 101, wherein the carbon fibers at the cable main body 101 form a certain twisting angle which is 2-3 degrees and can be properly adjusted according to the situation.
And fifthly, extruding the inhaul cable body 1 from the radial direction by adopting a sleeve pressing die to form the solid inhaul cable body 1.
And sixthly, tightly binding the cable main body 101 by using a glass fiber adhesive tape to form a glass fiber adhesive tape winding.
Seventhly, standing and curing for about 24 hours at room temperature. The curing time can be shortened by heating according to requirements.
And eighthly, after the solidification is finished, coating ceramic paint on the outer peripheral surface of the glass fiber tape winding to form a ceramic coating.
The test results of the guy cable samples prepared based on the method of this example are shown in table 2:
TABLE 2
If a current commercial high strength steel strand rope (2000 MPa) is used, the weight of the steel rope is about 270 kg under the same condition, and the weight of the connecting piece is actually calculated to be larger. Therefore, the weight reduction effect is very obvious.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and their concepts should be equivalent or changed within the technical scope of the present invention.
The present invention is not limited to the above embodiments, and those skilled in the art can implement the present invention in other embodiments according to the disclosure of the present invention, or make simple changes or modifications on the design structure and idea of the present invention, and fall into the protection scope of the present invention. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
Claims (10)
1. The utility model provides a solid carbon fiber cable of multipurpose high strength integrated form which characterized in that: the method comprises the following steps:
the cable body (1) is formed by twisting, compacting and curing a pre-impregnated carbon fiber winding (6) formed by winding pre-impregnated carbon fibers for multiple times, and comprises a cable main body (101) and closed rings (102) formed at two ends of the cable main body (101), wherein the cable main body (101) is of a solid structure, and the length direction of the fibers of the pre-impregnated carbon fibers is the same as that of the cable main body (101);
a wire winding (2) formed by winding and tightening a wire around a cable body (101);
the cable comprises 2 alloy joints (3) which are fastened in a closed ring (102) respectively, the alloy joints (3) are made of non-cast stainless steel or titanium alloy, the alloy joints (3) are provided with connecting holes (5), and the axial direction of the connecting holes (5) is perpendicular to the length direction of the cable body (1).
2. The multi-purpose high strength integrated solid carbon fiber ripcord of claim 1, wherein:
the outer surface of the alloy joint (3) is provided with a groove (4), and the alloy joint (3) is fastened in the closed ring (102) through the groove (4);
and/or the alloy joint (3) is round or oval.
3. The multi-purpose high strength integrated solid carbon fiber ripcord of claim 1, wherein: the pre-impregnated carbon fibers are in the shape of a tape or a thread.
4. The multi-purpose high strength integrated solid carbon fiber ripcord of claim 1, wherein: the torsion angle of the carbon fiber at the cable main body (101) is 2-3 degrees; and/or the cross section of the cable main body (101) is round or irregular.
5. The multi-purpose high strength integrated solid carbon fiber ripcord of claim 1, wherein: the outer peripheral surface of the wire winding (2) is coated with a ceramic coating.
6. The multi-purpose high strength integrated solid carbon fiber ripcord of claim 1, wherein: the wire is filiform or banded glass fiber, or filiform or banded carbon fiber.
7. The multi-purpose high strength integrated solid carbon fiber ripcord of claim 1, wherein: the prepreg carbon fiber comprises a carbon fiber bundle and a prepreg resin glue solution impregnated in the carbon fiber bundle, and the prepreg resin glue solution can be cured at room temperature.
8. The multi-purpose high strength integrated solid carbon fiber ripcord of claim 7, wherein: the prepreg resin glue solution comprises the following components in parts by weight: 100 plus or minus 2 parts of epoxy resin, 25 plus or minus 2 parts of 593 curing agent, 2 plus or minus 1 part of 3, 5-dimethylthio toluenediamine and 2 plus or minus 1 part of aluminium oxide powder.
9. A method of manufacturing a multipurpose high-strength integrated solid carbon fiber cable according to any one of claims 1 to 8, characterized in that: the method comprises the following steps:
1) fixing 2 alloy joints (3) at intervals relatively, and winding pre-impregnated carbon fibers on the 2 alloy joints (3) to form a pre-impregnated carbon fiber winding (6), wherein the alloy joints (3) are positioned at two radial ends of the pre-impregnated carbon fiber winding (6);
2) moving at least one of the 2 alloy joints (3) to tension the pre-impregnated carbon fiber winding (6) to the preset length of the multipurpose high-strength integrated solid carbon fiber cable, then controlling the alloy joints (3) to twist the pre-impregnated carbon fiber winding (6) to the pre-impregnated carbon fibers among the 2 alloy joints (3) to form the cable main body (101), forming the closed ring (102) by the pre-impregnated carbon fibers at the alloy joints (3), and then pressing the cable main body (1) from the radial direction to form the solid cable main body (1);
3) and winding a wire on the solid cable main body (101) to enable the solid cable main body (101) to be tightly bound in the radial direction, and then standing and curing to obtain the multipurpose high-strength integrated solid carbon fiber cable.
10. The method for manufacturing a multipurpose high-strength integrated solid carbon fiber cable according to claim 7, wherein: the winding method of the pre-impregnated carbon fiber comprises the steps of controlling one end of the pre-impregnated carbon fiber to bypass one alloy joint (3), then bypass the other alloy joint (3), then bypass one alloy joint (3), then bypass the other alloy joint (3), and repeating for multiple times;
and/or the distance between the 2 alloy joints (3) in the step 1) is fixed according to 95% -98% of the preset length of the multipurpose high-strength integrated solid carbon fiber inhaul cable.
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| CN202110093480.0A CN112761070A (en) | 2021-01-22 | 2021-01-22 | Multipurpose high-strength integrated solid carbon fiber inhaul cable and preparation method thereof |
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